JAEA-Data-Code-2014-002-01:17.7MB
JAEA-Data/Code 2014-002 宮崎平野における完新世堆積物の分析データ Analytical Data of Holocene Sediments in the Miyazaki Plain, Southern Kyushu, Japan 生田 正文 丹羽 正和 高取 亮一 鎌滝 孝信 黒澤 英樹 Masafumi IKUTA, Masakazu NIWA, Ryoichi TAKATORI, Takanobu KAMATAKI and Hideki KUROSAWA 地層処分研究開発部門 東濃地科学研究ユニット Tono Geoscientific Research Unit Geological Isolation Research and Development Directorate June 2014 Japan Atomic Energy Agency 日本原子力研究開発機構 国際単位系（SI） 表１．SI 基本単位 SI 基本単位 基本量 名称 記号 長 さメ ートル m 質 量 キログラム kg 時 間 秒 s 電 流ア ンペア A 熱力学温度 ケ ル ビ ン K 物 質 量モ ル mol 光 度 カ ン デ ラ cd 面 体 速 加 波 密 面 表２．基本単位を用いて表されるSI組立単位の例 SI 基本単位 組立量 名称 記号 積 平方メートル m2 積 立法メートル m3 さ ， 速 度 メートル毎秒 m/s 速 度 メートル毎秒毎秒 m/s2 数 毎メートル m-1 度 ， 質 量 密 度 キログラム毎立方メートル kg/m3 積 密 度 キログラム毎平方メートル kg/m2 比 体 電 流 密 磁 界 の 強 (a) 量濃度 ，濃 質 量 濃 輝 屈 折 率 比 透 磁 率 積 立方メートル毎キログラム 度 アンペア毎平方メートル さ アンペア毎メートル 度 モル毎立方メートル 度 キログラム毎立法メートル 度 カンデラ毎平方メートル (b) （数字の） １ (b) （数字の） １ 乗数 24 10 1021 1018 1015 1012 109 106 103 3 m /kg A/m2 A/m mol/m3 kg/m3 cd/m2 1 1 102 101 ᮏ࣏࣮ࣞࢺࡣ⊂❧⾜ᨻἲே᪥ᮏཎᏊຊ◊✲㛤ⓎᶵᵓࡀᐃᮇⓎ⾜ࡍࡿᡂᯝሗ࿌᭩࡛ࡍࠋ ᮏ࣏࣮ࣞࢺࡢධᡭ୪ࡧⴭసᶒ⏝㛵ࡍࡿ࠾ၥ࠸ྜࢃࡏࡣࠊୗグ࠶࡚࠾ၥ࠸ྜࢃࡏୗࡉ࠸ࠋ ࡞࠾ࠊᮏ࣏࣮ࣞࢺࡢᩥࡣ᪥ᮏཎᏊຊ◊✲㛤Ⓨᶵᵓ࣮࣒࣮࣍࣌ࢪ㸦http://www.jaea.go.jp㸧 ࡼࡾⓎಙࡉࢀ࡚࠸ࡲࡍࠋ ⊂❧⾜ᨻἲே᪥ᮏཎᏊຊ◊✲㛤Ⓨᶵᵓ ࠛ319-1195 ◊✲ᢏ⾡ሗ㒊 ◊✲ᢏ⾡ሗㄢ Ⲉᇛ┴㑣⌃㒆ᮾᾏᮧⓑ᪉ⓑ᰿ 2 ␒ᆅ 4 㟁ヰ 029-282-6387, Fax 029-282-5920, E-mail:[email protected] This report is issued irregularly by Japan Atomic Energy Agency. Inquiries about availability and/or copyright of this report should be addressed to Intellectual Resources Section, Intellectual Resources Department, Japan Atomic Energy Agency. 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195 Japan Tel +81-29-282-6387, Fax +81-29-282-5920, E-mail:[email protected] © Japan Atomic Energy Agency, 2014 ゼ タ エ ク サ Ｚ Ｅ 10-2 ペ テ タ ラ Ｐ Ｔ ギ メ ガ ガ Ｇ Ｍ マイクロ ノ 10-9 ナ コ 10-12 ピ 10-15 フェムト キ ロ ヘ ク ト デ カ ｋ ｈ da d ° ’ 日 度 分 10-3 10-6 記号 セ ン チ ミ リ ト 10-18 ア 10-21 ゼ プ ト 10-24 ヨ ク ト d c m µ n p f a z y 1 d=24 h=86 400 s 1°=(π/180) rad 1’=(1/60)°=(π/10800) rad ” 1”=(1/60)’=(π/648000) rad ha 1ha=1hm2=104m2 L，l 1L=11=1dm3=103cm3=10-3m3 t 1t=103 kg 秒 ヘクタール リットル SI基本単位による 表し方 m/m 2/ 2 m m s-1 m kg s-2 m-1 kg s-2 m2 kg s-2 m2 kg s-3 sA m2 kg s-3 A-1 m-2 kg-1 s4 A2 m2 kg s-3 A-2 m-2 kg-1 s3 A2 m2 kg s-2 A-1 kg s-2 A-1 m2 kg s-2 A-2 K cd m-2 cd s-1 トン 表７．SIに属さないが、SIと併用される単位で、SI単位で 表される数値が実験的に得られるもの 名称 記号 SI 単位で表される数値 電 子 ボ ル ト ダ ル ト ン 統一原子質量単位 eV Da u 天 ua 文 単 位 1eV=1.602 176 53(14)×10-19J 1Da=1.660 538 86(28)×10-27kg 1u=1 Da 1ua=1.495 978 706 91(6)×1011m 表８．SIに属さないが、SIと併用されるその他の単位 名称 記号 SI 単位で表される数値 バ ー ル bar １bar=0.1MPa=100kPa=105Pa 水銀柱ミリメートル mmHg 1mmHg=133.322Pa m2 s-2 m2 s-2 s-1 mol (a)SI接頭語は固有の名称と記号を持つ組立単位と組み合わせても使用できる。しかし接頭語を付した単位はもはや コヒーレントではない。 (b)ラジアンとステラジアンは数字の１に対する単位の特別な名称で、量についての情報をつたえるために使われる。 実際には、使用する時には記号rad及びsrが用いられるが、習慣として組立単位としての記号である数字の１は明 示されない。 (c)測光学ではステラジアンという名称と記号srを単位の表し方の中に、そのまま維持している。 (d)ヘルツは周期現象についてのみ、ベクレルは放射性核種の統計的過程についてのみ使用される。 (e)セルシウス度はケルビンの特別な名称で、セルシウス温度を表すために使用される。セルシウス度とケルビンの 単位の大きさは同一である。したがって、温度差や温度間隔を表す数値はどちらの単位で表しても同じである。 (f)放射性核種の放射能（activity referred to a radionuclide）は、しばしば誤った用語で”radioactivity”と記される。 (g)単位シーベルト（PV,2002,70,205）についてはCIPM勧告2（CI-2002）を参照。 表４．単位の中に固有の名称と記号を含むSI組立単位の例 SI 組立単位 組立量 SI 基本単位による 名称 記号 表し方 -1 粘 度 パスカル秒 Pa s m kg s-1 力 の モ ー メ ン ト ニュートンメートル Nm m2 kg s-2 表 面 張 力 ニュートン毎メートル N/m kg s-2 角 速 度 ラジアン毎秒 rad/s m m-1 s-1=s-1 角 加 速 度 ラジアン毎秒毎秒 rad/s2 m m-1 s-2=s-2 熱 流 密 度 , 放 射 照 度 ワット毎平方メートル W/m2 kg s-3 熱 容 量 , エ ン ト ロ ピ ー ジュール毎ケルビン J/K m2 kg s-2 K-1 比 熱 容 量 ， 比 エ ン ト ロ ピ ー ジュール毎キログラム毎ケルビン J/(kg K) m2 s-2 K-1 比 エ ネ ル ギ ー ジュール毎キログラム J/kg m2 s-2 熱 伝 導 率 ワット毎メートル毎ケルビン W/(m K) m kg s-3 K-1 体 積 エ ネ ル ギ ー ジュール毎立方メートル J/m3 m-1 kg s-2 電 界 の 強 さ ボルト毎メートル V/m m kg s-3 A-1 電 荷 密 度 クーロン毎立方メートル C/m3 m-3 sA 表 面 電 荷 クーロン毎平方メートル C/m2 m-2 sA 電 束 密 度 ， 電 気 変 位 クーロン毎平方メートル C/m2 m-2 sA 誘 電 率 ファラド毎メートル F/m m-3 kg-1 s4 A2 透 磁 率 ヘンリー毎メートル H/m m kg s-2 A-2 モ ル エ ネ ル ギ ー ジュール毎モル J/mol m2 kg s-2 mol-1 モルエントロピー, モル熱容量 ジュール毎モル毎ケルビン J/(mol K) m2 kg s-2 K-1 mol-1 照 射 線 量 （ Ｘ 線 及 び γ 線 ） クーロン毎キログラム C/kg kg-1 sA 吸 収 線 量 率 グレイ毎秒 Gy/s m2 s-3 放 射 強 度 ワット毎ステラジアン W/sr m4 m-2 kg s-3=m2 kg s-3 放 射 輝 度 ワット毎平方メートル毎ステラジアン W/(m2 sr) m2 m-2 kg s-3=kg s-3 酵 素 活 性 濃 度 カタール毎立方メートル kat/m3 m-3 s-1 mol 表５．SI 接頭語 記号 乗数 接頭語 Ｙ シ 10-1 デ 表６．SIに属さないが、SIと併用される単位 名称 記号 SI 単位による値 分 min 1 min=60s 時 h 1h =60 min=3600 s （a）量濃度（amount concentration）は臨床化学の分野では物質濃度 （substance concentration）ともよばれる。 （b）これらは無次元量あるいは次元１をもつ量であるが、そのこと を表す単位記号である数字の１は通常は表記しない。 表３．固有の名称と記号で表されるSI組立単位 SI 組立単位 組立量 他のSI単位による 名称 記号 表し方 （ｂ） 平 面 角 ラジアン(ｂ) rad 1 （ｂ） (ｂ) (c) 立 体 角 ステラジアン sr 1 周 波 数 ヘルツ（ｄ） Hz 力 ニュートン N 圧 力 応 力 パスカル , Pa N/m2 エ ネ ル ギ ー , 仕 事 , 熱 量 ジュール J Nm 仕 事 率 ， 工 率 ， 放 射 束 ワット W J/s 電 荷 電 気 量 クーロン , C 電 位 差 （ 電 圧 ） , 起 電 力 ボルト V W/A 静 電 容 量 ファラド F C/V 電 気 抵 抗 オーム Ω V/A コ ン ダ ク タ ン ス ジーメンス S A/V 磁 束 ウエーバ Wb Vs 磁 束 密 度 テスラ T Wb/m2 イ ン ダ ク タ ン ス ヘンリー H Wb/A セ ル シ ウ ス 温 度 セルシウス度(ｅ) ℃ 光 束 ルーメン lm cd sr(c) 照 度 ルクス lx lm/m2 Bq 放 射 性 核 種 の 放 射 能 （ ｆ ） ベクレル（ｄ） 吸収線量, 比エネルギー分与, グレイ Gy J/kg カーマ 線量当量, 周辺線量当量, 方向 Sv J/kg シーベルト（ｇ） 性線量当量, 個人線量当量 酸 素 活 性 カタール kat 接頭語 ヨ タ オングストローム 海 里 バ ー ン Å Ｍ １Å=0.1nm=100pm=10-10m １M=1852m b ノ ネ ベ ト パ ル kn Np Ｂ １b=100fm2=(10-12cm)2=10-28m2 １kn=(1852/3600)m/s ル dB ッ ー デ ジ ベ SI単位との数値的な関係は、 対数量の定義に依存。 表９．固有の名称をもつCGS組立単位 名称 記号 SI 単位で表される数値 ル グ erg 1 erg=10-7 J エ ダ ポ イ ア ス ス ト ー ク チ ル フ ガ ォ ン dyn 1 dyn=10-5N ズ P 1 P=1 dyn s cm-2=0.1Pa s ス St 1 St =1cm2 s-1=10-4m2 s-1 ブ sb 1 sb =1cd cm-2=104cd m-2 ト ph 1 ph=1cd sr cm-2 104lx ル Gal 1 Gal =1cm s-2=10-2ms-2 マ ク ス ウ ｪ ル ガ ウ ス エルステッド（ ｃ） Mx G Oe 1 Mx = 1G cm2=10-8Wb 1 G =1Mx cm-2 =10-4T 1 Oe (103/4π)A m-1 （c）３元系のCGS単位系とSIでは直接比較できないため、等号「 」 は対応関係を示すものである。 キ レ ラ 名称 ュ リ ン レ ガ ト 表10．SIに属さないその他の単位の例 記号 SI 単位で表される数値 ー Ci 1 Ci=3.7×1010Bq ゲ ン ン R ド rad ム rem マ γ 準 大 気 1 rad=1cGy=10-2Gy 1 rem=1 cSv=10-2Sv 1γ=1 nT=10-9T 1フェルミ=1 fm=10-15m フ ェ ル ミ メートル系カラット ト 標 1 R = 2.58×10-4C/kg 1メートル系カラット = 200 mg = 2×10-4kg ル Torr 1 Torr = (101 325/760) Pa 圧 atm 1 atm = 101 325 Pa カ ロ リ ー cal ミ ク ロ ン µ 1cal=4.1858J（｢15℃｣カロリー），4.1868J （｢IT｣カロリー）4.184J（｢熱化学｣カロリー） 1 µ =1µm=10-6m （第8版，2006年改訂） JAEA-Data/Code 2014-002 JAEA-Data/Code 2014-002 宮崎平野における完新世堆積物の分析データ 日本原子力研究開発機構 地層処分研究開発部門 東濃地科学研究ユニット 生田 正文※，丹羽 正和，高取 亮一*1，鎌滝 孝信*2，黒澤 英樹*3 （2014 年 1 月 15 日受理） 2011 年 3 月 11 日に発生した東北地方太平洋沖地震（Mw9.0）による津波災害を契機に，津波堆積物 を用いた海溝型巨大地震に関する研究が注目を集めている．一方，日向灘に面する宮崎平野は，歴史 時代に日向灘あるいは南海トラフを震源とする大規模な地震による津波に襲われたことが知られている． しかしながら堆積物として津波の痕跡を確認するなど，その証拠を科学的に明らかにした地質学的な研 究例は未だ無い．本研究では，宮崎平野の完新世の堆積物を事例に，津波堆積物の認定手法の高度 化のほか，数千年オーダでの局所的な隆起・沈降のプロセスの解明等に取り組んでおり，これまでに堆 積物の記載，採取および各種分析等を進めてきた．本データ集は，これらの結果を取りまとめ，報告する ものである． 東濃地科学センター（駐在）：〒509-5102 岐阜県土岐市泉町定林寺 959-31 ※技術開発協力員 *1 株式会社地圏総合コンサルタント *2 秋田大学地域創生センター *3 応用地質株式会社 i JAEA-Data/Code 2014-002 JAEA-Data/Code 2014-002 Analytical Data of Holocene Sediments in the Miyazaki Plain, Southern Kyushu, Japan Masafumi IKUTA※, Masakazu NIWA, Ryoichi TAKATORI*1, Takanobu KAMATAKI*2 and Hideki KUROSAWA*3 Tono Geoscientific Research Unit Geological Isolation Research and Development Directorate Japan Atomic Energy Agency Izumi-cho, Toki-shi, Gifu-ken (Received January 15, 2014) Since the devastated tsunami induced by the Tohoku Region Pacific Coast Earthquake occurred on March 11, 2011, a lot of geologists have started to focus on the study of subduction-zone giant earthquakes using tsunami deposits. After the 2011 off the Pacific coast of Tohoku Earthquake, a lot of geologists studying tsunami deposits suggest the importance of the study concerning the tsunamis in the eastern coastal side of Kyushu. On the other hand, the Miyazaki Plain, facing the Hyuga-nada, had been attacked repeatedly by historical tsunami events induced by the giant earthquakes whose hypocenters were located in the Hyuga-nada or Nankai Trough. However, scientific studies concerning the tsunami events are still poor in this area. We are studying paleo-tsunami deposits in the Miyazaki Plain to develop investigation methods of tsunami deposits and elucidate the process of uplift and erosion for several thousand years in regional area. This data set shows the result of this study. Keywords: The Miyazaki Plain, Tsunami Deposit, Nankai Trough Earthquake ※ Collaborating Engineer *1 Chi-ken Sogo Consultants Co., Ltd. *2 Center for Research on Disaster Prevention in the Local Community, Akita University *3 OYO corporation ii ii JAEA-Data/Code 2014-002 目次 1. はじめに ······························································································································ 1 2. 概要 ···································································································································· 4 2.1 調査地域の地質概要 ······································································································ 4 2.2 現地調査の概要 ·············································································································· 9 2.3 分析の概要 ····················································································································· 12 3. 地質試料の分析·················································································································· 13 3.1 X 線 CT 測定 ················································································································· 38 3.2 土色測定························································································································ 39 3.3 帯磁率測定 ···················································································································· 39 3.4 密度・含水率測定 ·········································································································· 39 3.5 吸着水の水質分析········································································································· 39 3.6 粒度分析························································································································ 40 3.7 微化石分析 ··················································································································· 40 3.8 テフラ分析 ····················································································································· 102 3.9 全有機炭素，全硫黄，全窒素含有量測定 ····································································· 109 3.10 放射性炭素年代測定 ···································································································· 111 4. まとめ ·································································································································· 113 謝辞 ········································································································································· 113 参考文献 ·································································································································· 114 付録 Ⅰ 分析深度一覧図 ······································································································· 121 付録 Ⅱ X 線 CT 撮影画像 ···································································································· 135 付録 Ⅲ 掘削試料写真 ··········································································································· 147 付録 Ⅳ 土色測定結果 ··········································································································· 167 付録 Ⅴ 帯磁率測定結果 ······································································································· 189 付録 Ⅵ 密度・含水率測定結果······························································································ 207 付録 Ⅶ 吸着水の水質分析結果 ···························································································· 215 付録 Ⅷ 微化石写真··············································································································· 223 付録 Ⅸ テフラ分析結果 ········································································································· 233 付録 DVD iii iii JAEA-Data/Code 2014-002 Contents 1. Introduction ·························································································································· 1 2. Outline of investigation ········································································································· 4 2.1 Geology···························································································································· 4 2.2 Field surveying ················································································································· 9 2.3 Analysis···························································································································· 12 3. Analysis and results ··············································································································· 13 3.1 X-ray Computed Tomography ··························································································· 38 3.2 Earthlike colors················································································································· 39 3.3 Magnetic susceptibility ····································································································· 39 3.4 Density of soil and water content······················································································· 39 3.5 Analysis of absorbed water································································································ 39 3.6 Grading analysis ··············································································································· 40 3.7 Microfossil analysis ·········································································································· 40 3.8 Tephra analysis ················································································································· 102 3.9 Total organic carbon, sulfur and nitrogen content ······························································· 109 3.10 Radiocarbon dating ········································································································· 111 4. Conclusion ···························································································································· 113 Acknowledgement····················································································································· 113 References ································································································································ 114 Appendix Ⅰ Depth of analysis sample ···················································································· 121 Appendix Ⅱ X-ray Computed Tomography pictures ································································ 135 Appendix Ⅲ Borehole sample pictures···················································································· 147 Appendix Ⅳ Earthlike color analysis result ············································································· 167 Appendix Ⅴ Magnetic susceptibility result ············································································· 189 Appendix Ⅵ Density of soil and water content result······························································· 207 Appendix Ⅶ Analysis of absorbed water result········································································ 215 Appendix Ⅷ Microfossil pictures···························································································· 223 Appendix Ⅸ Tephra analysis result ························································································· 233 Appendix DVD iv iv JAEA-Data/Code 2014-002 図リスト 図リスト 図 1.1 図 1.1 日向灘および南海トラフ沿いの巨大地震震央分布図 日向灘および南海トラフ沿いの巨大地震震央分布図 ··················································· ··················································· 2 2 図 2.1.1 図 2.1.1 調査地域位置図 調査地域位置図 ········································································································ ········································································································ 5 5 図 2.1.2 図 2.1.2 遺跡分布図 遺跡分布図 ··············································································································· ··············································································································· 6 6 図 2.2.1 図 2.2.1 掘削調査地点位置図 掘削調査地点位置図 ································································································ ································································································ 10 10 図 2.2.2 図 2.2.2 打撃式手掘りサンプラー模式構造図·········································································· 打撃式手掘りサンプラー模式構造図·········································································· 11 11 図 2.2.3 図 2.2.3 打撃式手掘りサンプラーによる地質試料の採取状況 打撃式手掘りサンプラーによる地質試料の採取状況 ················································· ················································· 11 11 図 3.1（1） 図 3.1（1） 掘削試料分析結果（１） 掘削試料分析結果（１） KH-01 KH-01 ··············································································· ··············································································· 13 13 図 3.1（2） 図 3.1（2） 掘削試料分析結果（２） 掘削試料分析結果（２） KH-02 KH-02 ··············································································· ··············································································· 13 13 図 3.1（3） 図 3.1（3） 掘削試料分析結果（３） 掘削試料分析結果（３） KH-03 KH-03 ··············································································· ··············································································· 14 14 図 3.1（4） 図 3.1（4） 掘削試料分析結果（４） 掘削試料分析結果（４） KH-04 KH-04 ··············································································· ··············································································· 14 14 図 3.1（5） 図 3.1（5） 掘削試料分析結果（５） 掘削試料分析結果（５） KH-05 KH-05 ··············································································· ··············································································· 15 15 図 3.1（6） 図 3.1（6） 掘削試料分析結果（６） 掘削試料分析結果（６） KH-06’ KH-06’ ············································································· ············································································· 15 15 図 3.1（7） 図 3.1（7） 掘削試料分析結果（７） 掘削試料分析結果（７） KH-07 KH-07 ··············································································· ··············································································· 16 16 図 3.1（8） 図 3.1（8） 掘削試料分析結果（８） 掘削試料分析結果（８） KH-08 KH-08 ··············································································· ··············································································· 17 17 図 3.1（9） 図 3.1（9） 掘削試料分析結果（９） 掘削試料分析結果（９） KH-09’ KH-09’ ············································································· ············································································· 17 17 図 3.1（10） 図 3.1（10） 掘削試料分析結果（１０） 掘削試料分析結果（１０） KH-10 KH-10 ··········································································· ··········································································· 18 18 図 3.1（11） 図 3.1（11） 掘削試料分析結果（１１） 掘削試料分析結果（１１） KH-11 KH-11 ··········································································· ··········································································· 19 19 図 3.1（12） 図 3.1（12） 掘削試料分析結果（１２） 掘削試料分析結果（１２） KH-12 KH-12 ··········································································· ··········································································· 19 19 図 3.1（13） 図 3.1（13） 掘削試料分析結果（１３） 掘削試料分析結果（１３） KH-13 KH-13 ··········································································· ··········································································· 20 20 図 3.1（14） 図 3.1（14） 掘削試料分析結果（１４） 掘削試料分析結果（１４） KH-14 KH-14 ··········································································· ··········································································· 21 21 図 3.1（15） 図 3.1（15） 掘削試料分析結果（１５） 掘削試料分析結果（１５） SD-01 SD-01 ··········································································· ··········································································· 22 22 図 3.1（16） 図 3.1（16） 掘削試料分析結果（１６） 掘削試料分析結果（１６） SD-02 SD-02 ··········································································· ··········································································· 22 22 図 3.1（17） 図 3.1（17） 掘削試料分析結果（１７） 掘削試料分析結果（１７） SY-02 SY-02 ············································································ ············································································ 23 23 図 3.1（18） 図 3.1（18） 掘削試料分析結果（１８） 掘削試料分析結果（１８） SY-03 SY-03 ············································································ ············································································ 25 25 図 3.1（19） 図 3.1（19） 掘削試料分析結果（１９） 掘削試料分析結果（１９） SY-04 SY-04 ············································································ ············································································ 27 27 図 3.1（20） 図 3.1（20） 掘削試料分析結果（２０） 掘削試料分析結果（２０） SY-05CT SY-05CT ······································································· ······································································· 29 29 図 3.1（21） 図 3.1（21） 掘削試料分析結果（２１） 掘削試料分析結果（２１） SY-06, SY-06, SY-07CT···························································· SY-07CT···························································· 31 31 図 3.1（22） 図 3.1（22） 掘削試料分析結果（２２） 掘削試料分析結果（２２） SY-09 SY-09 ············································································ ············································································ 32 32 図 3.1（23） 図 3.1（23） 掘削試料分析結果（２３） 掘削試料分析結果（２３） SY-10 SY-10 ············································································ ············································································ 33 33 図 3.1（24） 図 3.1（24） 掘削試料分析結果（２４） 掘削試料分析結果（２４） SY-12 SY-12 ············································································ ············································································ 34 34 図 3.1（25） 図 3.1（25） 掘削試料分析結果（２５） 掘削試料分析結果（２５） SY-16CT SY-16CT ······································································· ······································································· 35 35 図 3.2（1） 図 3.2（1） 露頭地質スケッチ（１） 露頭地質スケッチ（１） 産母川················································································· 産母川················································································· 36 36 図 3.2（2） 図 3.2（2） 露頭地質スケッチ（２） 露頭地質スケッチ（２） 竹割川················································································· 竹割川················································································· 37 37 v v JAEA-Data/Code 2014-002 表リスト 表リスト 表表 1.11.1日向灘および南海トラフ沿いの巨大地震一覧表··························································· 日向灘および南海トラフ沿いの巨大地震一覧表··························································· 3 3 表表 2.1.1 2.1.1遺跡調査の地質概要一覧表 遺跡調査の地質概要一覧表 ····················································································· ····················································································· 7 7 表表 2.1.2 2.1.2宮崎平野に到達した可能性のあるテフラ一覧表 宮崎平野に到達した可能性のあるテフラ一覧表 ························································ ························································ 8 8 表表 3.13.1X 線 X線 CTCT 測定諸元 測定諸元 ········································································································ ········································································································ 38 38 表表 3.7.1 3.7.1珪藻の生態性 珪藻の生態性 ············································································································ ············································································································ 41 41 表表 3.7.2（1） 3.7.2（1）化石含有状況概査結果（１） 化石含有状況概査結果（１） KH-07，KH-10，SD-01············································ KH-07，KH-10，SD-01············································ 43 43 表表 3.7.2（2） 3.7.2（2）化石含有状況概査結果（２） 化石含有状況概査結果（２） SD-02，SY-02·························································· SD-02，SY-02·························································· 45 45 表表 3.7.2（3） 3.7.2（3）化石含有状況概査結果（３） 化石含有状況概査結果（３） SY-03······································································ SY-03······································································ 47 47 表表 3.7.2（4） 3.7.2（4）化石含有状況概査結果（４） 化石含有状況概査結果（４） SY-05CT SY-05CT ································································· ································································· 49 49 表表 3.7.2（5） 3.7.2（5）化石含有状況概査結果（５） 化石含有状況概査結果（５） SY-09，SY-12，SY-16 SY-09，SY-12，SY-16 ·············································· ·············································· 51 51 表表 3.7.2（6） 3.7.2（6）化石含有状況概査結果（６） 化石含有状況概査結果（６） SY-16CT，産母川，竹割川······································ SY-16CT，産母川，竹割川······································ 53 53 表表 3.7.3（1） 3.7.3（1）珪藻分析結果 珪藻分析結果 KH-07（１）···················································································· KH-07（１）···················································································· 55 55 表表 3.7.3（2） 3.7.3（2）珪藻分析結果 珪藻分析結果 KH-07（２）···················································································· KH-07（２）···················································································· 56 56 表表 3.7.3（3） 3.7.3（3）珪藻分析結果 珪藻分析結果 KH-07（３）···················································································· KH-07（３）···················································································· 57 57 表表 3.7.3（4） 3.7.3（4）珪藻分析結果 珪藻分析結果 KH-07（４）···················································································· KH-07（４）···················································································· 58 58 表表 3.7.3（5） 3.7.3（5）珪藻分析結果 珪藻分析結果 KH-07（５）···················································································· KH-07（５）···················································································· 59 59 表表 3.7.3（6） 3.7.3（6）珪藻分析結果 珪藻分析結果 KH-10（１）···················································································· KH-10（１）···················································································· 60 60 表表 3.7.3（7） 3.7.3（7）珪藻分析結果 珪藻分析結果 KH-10（２）···················································································· KH-10（２）···················································································· 61 61 表表 3.7.3（8） 3.7.3（8）珪藻分析結果 珪藻分析結果 SY-03（１）····················································································· SY-03（１）····················································································· 63 63 表表 3.7.3（9） 3.7.3（9）珪藻分析結果 珪藻分析結果 SY-03（２）····················································································· SY-03（２）····················································································· 65 65 表表 3.7.3（10） 3.7.3（10）珪藻分析結果 珪藻分析結果 SY-03（３） SY-03（３） ··················································································· ··················································································· 67 67 表表 3.7.3（11） 3.7.3（11）珪藻分析結果 珪藻分析結果 SY-03（４） SY-03（４） ··················································································· ··················································································· 69 69 表表 3.7.3（12） 3.7.3（12）珪藻分析結果 珪藻分析結果 SY-03（５） SY-03（５） ··················································································· ··················································································· 71 71 表表 3.7.3（13） 3.7.3（13）珪藻分析結果 珪藻分析結果 SY-05CT（１） SY-05CT（１） ·············································································· ·············································································· 73 73 表表 3.7.3（14） 3.7.3（14）珪藻分析結果 珪藻分析結果 SY-05CT（２） SY-05CT（２） ·············································································· ·············································································· 75 75 表表 3.7.3（15） 3.7.3（15）珪藻分析結果 珪藻分析結果 SY-05CT（３） SY-05CT（３） ·············································································· ·············································································· 77 77 表表 3.7.3（16） 3.7.3（16）珪藻分析結果 珪藻分析結果 SY-05CT（４） SY-05CT（４） ·············································································· ·············································································· 79 79 表表 3.7.3（17） 3.7.3（17）珪藻分析結果 珪藻分析結果 SY-09（１） SY-09（１） ··················································································· ··················································································· 81 81 表表 3.7.3（18） 3.7.3（18）珪藻分析結果 珪藻分析結果 SY-09（２） SY-09（２） ··················································································· ··················································································· 83 83 表表 3.7.3（19） 3.7.3（19）珪藻分析結果 珪藻分析結果 SY-09（３） SY-09（３） ··················································································· ··················································································· 85 85 表表 3.7.3（20） 3.7.3（20）珪藻分析結果 珪藻分析結果 SY-09（４） SY-09（４） ··················································································· ··················································································· 87 87 表表 3.7.3（21） 3.7.3（21）珪藻分析結果 珪藻分析結果 SY-12，SY-16CT（１） SY-12，SY-16CT（１） ·································································· ·································································· 89 89 表表 3.7.3（22） 3.7.3（22）珪藻分析結果 珪藻分析結果 SY-12，SY-16CT（２） SY-12，SY-16CT（２） ·································································· ·································································· 90 90 表表 3.7.3（23） 3.7.3（23）珪藻分析結果 珪藻分析結果 SY-12，SY-16CT（３） SY-12，SY-16CT（３） ·································································· ·································································· 91 91 表表 3.7.3（24） 3.7.3（24）珪藻分析結果 珪藻分析結果 竹割川（１） 竹割川（１） ················································································· ················································································· 92 92 表表 3.7.3（25） 3.7.3（25）珪藻分析結果 珪藻分析結果 竹割川（２） 竹割川（２） ················································································· ················································································· 93 93 表表 3.7.3（26） 3.7.3（26）珪藻分析結果 珪藻分析結果 竹割川（３） 竹割川（３） ················································································· ················································································· 94 94 vi vi vi JAEA-Data/Code 2014-002 表 3.7.3（27） 珪藻分析結果 竹割川（４） ················································································· 95 表 3.7.4 有孔虫分析結果 ········································································································ 97 表 3.7.5 貝形虫分析結果 ········································································································ 99 表 3.7.6 貝・植物遺体同定結果······························································································· 100 表 3.7.7 主要有孔虫の産出状況 ····························································································· 101 表 3.8.1（1） 火山ガラスの屈折率測定結果表（１） KH-07CT，KH-14CT·································· 103 表 3.8.1（2） 火山ガラスの屈折率測定結果表（２） KH-14CT，SY-03CT··································· 104 表 3.8.1（3） 火山ガラスの屈折率測定結果表（３） SY-03CT，産母川 ······································ 105 表 3.8.1（4） 火山ガラスの屈折率測定結果表（４） 産母川 ······················································· 106 表 3.8.2（1） 斜方輝石の屈折率測定結果表（１） KH-07CT，KH-14CT，SY-03CT··················· 107 表 3.8.2（2） 斜方輝石の屈折率測定結果表（２） SY-03CT，産母川 ········································ 108 表 3.9.1 全有機炭素，全硫黄，全窒素含有量測定結果一覧表··············································· 110 表 3.10.1 放射性炭素年代測定結果一覧表 ············································································ 112 vii vii This is a blank page. JAEA-Data/Code 2014-002 1.㻌 䛿䛨䜑䛻 2011 ᖺ 3 ᭶ 11 ᪥䛻Ⓨ⏕䛧䛯ᮾᆅ᪉ኴᖹὒἈᆅ㟈䠄Mw9.0䠅䛻䜘䜛ὠἼ⅏ᐖ䜢ዎᶵ䛻䠈ὠἼሁ✚≀ 䜢⏝䛔䛯ᾏ⁁ᆺᕧᆅ㟈䛻㛵䛩䜛◊✲䛜ὀ┠䜢㞟䜑䛶䛔䜛䠊୍᪉䠈᪥ྥℿ䛻㠃䛩䜛ᐑᓮᖹ㔝䛿䠈Ṕྐ ௦䛻つᶍ䛺ᆅ㟈䛻䜘䜛ὠἼ䛻く䜟䜜䛶䛔䜛䛣䛸䛛䜙䠈༡ᾏ䝖䝷䝣ᕧᆅ㟈䛻䛴䛔䛶䛿䠈᭱䜽䝷䝇䛾 ᆅ㟈䞉ὠἼ䜢ᐃ䛧䛯䜒䛾䛸䛧䛶䠈ᐃ㟈※᩿ᒙᇦ䛻᪥ྥℿ䜢᪂䛯䛻ྵ䜑䜛䝰䝕䝹䜒ᥦ䛥䜜䛶䛔䜛 1䠅䠊 ᪥ྥℿ䛿䠈M7 䜽䝷䝇䛾ᆅ㟈䛜 1909 ᖺ䛛䜙 1984 ᖺ䜎䛷䛾㛫䛻 6 ᅇⓎ⏕ 2䠅䛧䛶䛚䜚䠈ᆅ㟈άື䛿ẚ㍑ⓗ άⓎ䛷䛒䜛䠄ᅗ 1.1䠅䠊䛘䜀 1968 ᖺ᪥ྥℿᆅ㟈 3)䛺䛹䠈ᐑᓮᖹ㔝ἢᓊ䛷䛿䠈䛯䜃䛯䜃ὠἼ䜢క䛖つᶍ 䛺ᆅ㟈䛜Ⓨ⏕䛧䛶䛔䜛䠄⾲ 1.1䠅䠊1662 ᖺ䛾ᐶᩥᆅ㟈䛷䛿䠈ᐑᓮᖹ㔝䛻㧗䛥 4䡚5m 䛻ཬ䜆ὠἼ 4)䛜฿㐩 䛧䛯䜋䛛䠈ᐑᓮᕷෆ䜢ὶ䜜䜛ΎṊᕝ䛚䜘䜃ຍỤ⏣ᕝ䛾Ἑཱྀ㏆䛷䛿⣙ 1m ỿ㝆䛧䛯䛣䛸䛜Ṕྐグ㘓䛻 グ䛥䜜䛶䛔䜛 5䠅䠊 ᪥ᮏཎᏊຊ◊✲㛤Ⓨᶵᵓ䛷䛿䠈ᐑᓮᖹ㔝䛾᪂ୡ䛾ሁ✚≀䜢䛻䠈ὠἼሁ✚≀䛾ྠᐃᡭἲ䛾㧗 ᗘ䛾䜋䛛䠈ᩘ༓ᖺ䜸䞊䝎䛷䛾ᒁᡤⓗ䛺㝯㉳䞉ỿ㝆䛾䝥䝻䝉䝇䛾ゎ᫂➼䛻ྲྀ䜚⤌䜣䛷䛔䜛䠊ᮏ䝕䞊䝍㞟 䛿䠈䛣䜜䜙䛾䛖䛱ᐑᓮᖹ㔝䛾୰㒊䛚䜘䜃༡㒊䛾᪥ྥℿἢᓊᆅᇦ䛷䠈ᖹᡂ 24 ᖺᗘ䛻ᐇ䛧䛯᪂ୡሁ✚ ≀䛻䛴䛔䛶䠈⌧ᆅㄪᰝ䛚䜘䜃ྛ✀ศᯒ䛾⤖ᯝ䜢ྲྀ䜚䜎䛸䜑䛯䜒䛾䛷䛒䜛䠊 -1-- JAEA-Data/Code 2014-002 ᅗ 1.1㻌 ᪥ྥℿ䛚䜘䜃༡ᾏ䝖䝷䝣ἢ䛔䛾ᕧᆅ㟈㟈ኸศᕸᅗ 㟈ኸ⨨䛚䜘䜃ᆅ㟈䛾つᶍ䛿 2䠅䠈ά᩿ᒙ䛾ศᕸ䛿 9䠅䠈༡ᾏ䝖䝷䝣ἢ䛔䛾㟈※㡿ᇦᅗ䛿 10䠅䛻ᇶ䛵䛟䠊 㟷ᩘᏐ䛿ᆅ㟈Ⓨ⏕ᖺ䠄すᬺ䠈᥎ᐃ䜢ྵ䜐䠅䠊 -2-- M8.2 M8.0䡚8.5 M8.2䡚8.5 1099/2 1361/8 1498/7 1498/7 1498/9 1605/2 1662/10 1707/10 1769/8 1854/12 1854/12 1899/11 1909/11 1931/11 1941/11 1944/12 1946/12 1961/2 1968/4 Ọ㛗 ᗣ ṇᖹ 䠄᫂ᛂ䠅᪥ྥℿ ᫂ᛂ༡ᾏ ᫂ᛂᮾᾏ 㛗 ᐶᩥ ᐆỌ ᫂ -- Ᏻᨻᮾ䠄༡䠅ᾏ Ᏻᨻ༡ᾏ ᪥ྥℿ ᐑᓮ┴す㒊 ᪥ྥℿ ᪥ྥℿ ᮾ༡ᾏ ༡ᾏ ᪥ྥℿ 1968 ᖺ᪥ྥℿ ᪥ྥℿ 1984/8 M7.1 ὀ 1)M7.0 ௨ୖ䛾ᆅ㟈䜢グ㍕ 2)䝬䜾䝙䝏䝳䞊䝗 M 䛿 2)䛻䜘䜛䠄䍦MJ2)䠅㻌 M7.5 M7.0 M7.2 M7.1 M7.6 M7.1 㻌㻌㻌 M8.0 M8.4 M7.5䡚8.0 M7.5䡚7.8 M7.9 M7.0䡚7.5 M7.0䡚7.5 M8.0䡚8.3 887/8 1096/12 ோ B 684/11 A D M7.9 M8.6 M8.4 M8.2䡚8.4 M8.0䡚8.5 C E ὠἼ䛾㧗䛥䛿ᘏᒸ䛾 18cm 䛜᭱ 2) ὠἼ䛾᭱ᖜ䛿⣽ᓥ 198cm䚸Ἔὠ 66cm3䠅 ὠἼ䛾㧗䛥ᅵబΎỈ 50cm䚸⣽ᓥ 45cm䚸Ἔὠ 34cm2) 䚸ᐑᓮᕷ㉥Ụ䚸ᾷᕝἢ䛔䜔㣕⾜ሙ㉮㊰䛷ᆅ┙ỿୗⓎ⏕ 5) ᪥༡䛷ὠἼ䛾㧗䛥⣙ 2m2) ⣽ᓥ䛾᳨₻ሙ䛷ᅵᆅ䛜 8cm ỿୗ䚸᪥ྥℿἢᓊὠἼ᭱Ἴ㧗 1m䠄⣽ᓥ䚸㟷ᓥ䚸ᐟẟ䠅2) ᐊᡞ䛷ὠἼ䛾ᖜ 85cm2) ᐑᓮᕷ㏆䛷⿕ᐖ ᐑᓮ┴༡㒊䛷⿕ᐖ䚸⣽ᓥ䛾᳨₻䛻᭱ᖜ 32cm 䛾ὠἼ䜙䛧䛝䜒䛾䜢グ㘓 2) Ᏻᨻᮾ༡ᾏ䛾 32 㛫ᚋ䛻Ⓨ⏕ 2) ὠἼ䛿ᡣ⥲䛛䜙ᅵబ䛾ἢᓊ䜢く䛖 2) ᪥ྥ䞉㇏ᚋ㻌 ὠἼ䛸䛔䛖䜋䛹䛷䛿䛺䛔䛜ᾏỈ䛾ୖୗ䛒䜚 2)䚸ὠἼ㧗᥎ᐃ್䛿ᘏᒸ 1䡚2m䠈እᾆ 2䡚3m4䠅 ὠἼ㧗᥎ᐃ್䛿ᐑᓮ 2m䠈ᘏᒸ 3m4) ᕝἙཱྀ䛚䜘䜃ຍỤ⏣ᕝἙཱྀ䛾ᮧ䛷 1m 䜋䛹ᆅ┙䛜ỿ㝆 4䠅䚸ὠἼ䛾㧗䛥䛿 4䡚5m 䛸᥎ᐃ 4) -3- ᪥ྥ䛾ἢᓊ䛻⿕ᐖ䚸ὠἼ䚸᪥ྥ㑣㈡㒆䠄⌧ᐑᓮ┴䠅ἢᓊ࿘ᅖ⣙ 32km 䛾ᆅἐ䛧䛶ᾏ䛸䛺䜛䚸㟷ᓥ㏆䛷 0.9䡚1.2m ỿୗ 2) ᾷ 㟈ᐖ䛾グ㘓䛺䛧䚸ὠἼ䛜≟ྭᓁ䛛䜙ᕞ䛻⮳䜛ኴᖹὒᓊ䛻ᢲ䛧ᐤ䛫䜛 2)䚸ᆅ㟈ὠἼ䛸䛧䛶䚸ᕧᆅ㟈䛛䜙䛿㝖እ 10䠅 ᮾᾏ㐨⯡㻌 ὠἼ䛜⣖ఀ䛛䜙ᡣ⥲䜢く䛖 2) ༡ᾏᆅ㟈䛸䛩䜛ㄝ䜒䛒䜛 2) ὠἼ䛜く䛔ᦤὠ䞉㜿Ἴ䞉ᅵబ䛷⿕ᐖ㻌 ὠἼ䛻ඛ❧䛱㞴Ἴᾆ䛷ᩘⓒ⏫ᖸୖ䛜䛳䛯 2) ᅵబ䛷⏣⣙ 1,000ha ᾏ䛻ỿ䜐 2) ὠἼ᮶く㻌 ᅵబ䛷䛿⏣ⱌ⣙ 10km2 ỿୗ䛧䛶ᾏ䛸䛺䜛 2) ᐑᓮᖹ㔝䛾ᆅ㟈⿕ᐖ䛚䜘䜃᪥ྥℿ࿘㎶䛾ὠἼグ㘓 ⾲ 1.1㻌 ᪥ྥℿ䛚䜘䜃༡ᾏ䝖䝷䝣ἢ䛔䛾ᕧᆅ㟈୍ぴ⾲ ༡ᾏ㻌 㻌 㻌 㻌 ᮾ༡ᾏ㻌 㻌 㻌 ᮾᾏ ⓑ㬅䠄ኳṊ䠅 ℿ ྥ ᪥ 䠄すᬺ䠅 䜲䝧䞁䝖 㟈※ᇦ Ⓨ⏕ᖺ᭶ ᕧᆅ㟈 10) JAEA-Data/Code 2014-002 JAEA-Data/Code 2014-002 2.㻌 ᴫせ 2.1 ㄪᰝᆅᇦ䛾ᆅ㉁ᴫせ ᐑᓮᖹ㔝䛿䠈୰ᮇ୰᪂ୡ䡚㩭᪂ୡ䛾ᐑᓮᒙ⩌䜢ሁ✚䛥䛫䛯๓ᘼᾏ┅䛜䠈➨ᅄ⣖䛻ᕞᒣᆅ䛸䛸䜒䛻 㝯㉳䛧䛶ᡂ❧䛧䛯ᾏᓊᖹ㔝䛷䛒䜛 11)䠊ᐑᓮᖹ㔝䛾ᆅ㉁䛿ᅄ༑⣼ᒙ⩌䜢ᇶ┙䛸䛧䠈䛭䛾ୖ䜢ᩚྜ 䛷ᐑᓮᒙ⩌䛜そ䛔䠈䛥䜙䛻䛭䛾ୖ䛻䛿᭦᪂⤫䡚᪂⤫䛾」ᩘ䛾ẁୣ㠃䛜Ⓨ㐩䛧䛶䛔䜛䠊䛣䛾䛖䛱᪂ ⤫䛾ẁୣ㠃䛿䠈㧗䜘䜚ୗ⏣ᓥ䊠㠃䡚䊣㠃䛾 4 ẁ䛛䜙䛺䜛䠄ᅗ 2.1.1䠅䠊ୗ⏣ᓥ䊠㠃䛻䛿䠈᭱ 6 ิ䛾⣽ 㛗䛔◁ሐิ䜔䛭䛾㝣ഃ䛾ᖜᗈ䛔ᪧ₲†䛺䛹䛾ᚤᆅᙧ䛜ศᕸ䛩䜛䠊◁ሐ䛿⌧ᾏᓊ⥺䛻ᖹ⾜䛧䠈Ⓨ㐩䛜䜘 䛟䠈◁ሐ䛾㡬㒊䛿ᾏᢤ 10~15m 䛻㐩䛩䜛䠊ୗ⏣ᓥ䊠㠃䛿䠈䜰䜹䝩䝲ⅆᒣ⅊䠄K-Ah䠖7,300cal.y.B.P12)䠅䛾 ḟሁ✚ᒙ䛻そ䜟䜜䜛䛣䛸䛛䜙䠈K-Ah 㝆ୗ௨㝆䛻ሁ✚䛜ጞ䜎䜚䠈5,000~4,800y.B.P.㡭䛻㞳Ỉ䛧䛯䛸᥎ᐃ䛥 䜜䛶䛔䜛 13)䠊ୗ⏣ᓥ䊡㠃䛿䠈᭱ 4~5 ิ䛾◁ሐ䛸ሐ㛫పᆅ䠈ᪧ₲†䛺䛹䛾ᚤᆅᙧ䠈䛣䜜䛻㐃⥆䛩䜛Ἑᡂ 㠃䛜Ⓨ㐩䛩䜛䠊ୗ⏣ᓥ䊡㠃䛾ᙧᡂᮇ䛻䛴䛔䛶䛿䠈1 䛛ᡤ䛾 14C ᖺ௦ ᐃ್䛸㑇㊧䛾ศᕸ䛛䜙䠈 5,000~4,800y.B.P.䛻ጞ䜎䜚 3,000y.B.P.䛻㞳Ỉ䛧䛶ẁୣ䛧䛯䛸᥎ᐃ䛧䛶䛔䜛䠊ୗ⏣ᓥ䊢㠃䛻䛿䠈◁ୣ䛚 䜘䜃Ἑᡂ㠃䛜Ⓨ㐩䛩䜛䠊◁ሐ䛿ෆ㝣ഃ䛻䜟䛪䛛䛻ศᕸ䛧䠈ᾏഃ䛻䛿ᾏᢤ 25m ௨ୖ䛾◁ୣิ䛜Ⓨ㐩䛩 䜛䠊ୗ⏣ᓥ䊢㠃䛾ᙧᡂᮇ䛻䛴䛔䛶䠈1 䛛ᡤ䛾 14C ᖺ௦ ᐃ್䛸㑇㊧䛾ศᕸ䛛䜙䠈1,600y.B.P.㡭䛻㞳Ỉ 䛧䛿䛨䜑䛯䛸᥎ᐃ䛥䜜䛶䛔䜛 13)䠊ୗ⏣ᓥ䊣㠃䛿䠈◁ୣ䛚䜘䜃Ἑᡂ㠃䛜Ⓨ㐩䛩䜛䠊䛣䛾ẁୣ㠃䛿ୗ⏣ᓥ䊢 㠃䛾㞳Ỉ௨ᚋ䛻ᙧᡂ䜢㛤ጞ䛧䠈᪥ྥℿ䛻㠃䛧䛶䛔䜛◁ୣ䛿⌧ᅾ䜒ᡂ㛗䛧䛶䛔䜛 13)䠊䛣䜜䜙䛾᪂ୡ䛾ẁ ୣ㠃ୖ䛻䛿䠈ఫᒃ䛺䛹䛾㑇㊧䛜ከᩘぢ䛴䛛䛳䛶䛚䜚䠈Ⓨ᥀ㄪᰝ䛜⾜䜟䜜䛶䛔䜛䠄ᅗ 2.1.2䠈⾲ 2.1.1䠅䠊䛣 䜜䜙䛾㑇㊧䜢䛿䛨䜑ᐑᓮᖹ㔝䛷䛿䠈㟝ᓥⅆᒣ䛺䛹䛾༡ᕞ䛾➨ᅄ⣖ⅆᒣ䜢⤥※䛸䛩䜛䝔䝣䝷䛜ぢ䛴䛛 䛳䛶䛔䜛䠄⾲ 2.1.2䠅䠊 -4-- JAEA-Data/Code 2014-002 ᅗ 2.1.1㻌 ㄪᰝᆅᇦ⨨ᅗ 䝧䞊䝇䝬䝑䝥䛿ᅜᅵᆅ⌮㝔Ⓨ⾜䛾 1:25,000 ᆅᙧᅗ䛂ᐑᓮ㒊䛃䠈䛂ᐑᓮ䛃䛚䜘䜃䛂᪥ྥ㟷ᓥ䛃䜢⏝䠊 ᾐỈᇦ䛿 4)䛚䜘䜃 5)䛛䜙 1662 ᖺᐶᩥᆅ㟈䛾᥎ᐃὠἼᾐỈᇦ䜢㌿㍕䠊ᆅ┙䛜ỿ㝆䛧䛯⠊ᅖ䛿᫂䠊᪂ୡୗ⏣ᓥẁୣ㠃䛾༊ศ䛚䜘䜃 ศᕸ䠄䊠㠃~䊣㠃䠅䛿䠈✵୰┿ุㄞ䛚䜘䜃 13)䛻ᇶ䛵䛟䠊 -5- -- JAEA-Data/Code 2014-002 遺跡名 図 2.1.2 遺跡分布図 各遺跡位置は表 2.1.1 の引用文献に基づく. ベースマップは国土地理院の数値地図を使用して作成． -6-- ༡᪉⏫ ୗ⏣ᓥ䊠㠃 䠉 䠉 䠉 䠉 䠉 ⴗᓮ➨ 2 ᒣᓮ⏫ ᒣᓮ⏫ ᒣᓮ⏫ ᪂ูᗓᕝ ụ㛤䞉Ụཱྀ 23) ᪂ูᗓᕝ ᷌➨ 224) ᪂ูᗓᕝ༡ ୰ 25) ᪂ูᗓᕝ༡ ୰䊡26) ᪂ูᗓᕝ༡ ୰䊢27) ୗ⏣ᓥ䊠㠃 ୗ⏣ᓥ䊡㠃 ୗ⏣ᓥ䊡㠃 ୗ⏣ᓥ䊢㠃 ୗ⏣ᓥ䊢㠃 ୗ⏣ᓥ䊡㠃 ୗ⏣ᓥ䊡㠃 ୗ⏣ᓥ䊡㠃 -- 䠉 䠉 䠉 䠉 ㌴ᆏ➨ 135) ㌴ᆏ➨ 235) ㌴ᆏ➨ 335) ᒣୗ➨ 135) ᓥᒣ᪉ ᓥᒣ᪉ ᓥᒣ᪉ ᓥᒣ᪉ ᓥᒣ᪉ ᓥᒣ᪉ ᇶ┙ ᇶ┙ ᇶ┙ ᇶ┙ ᇶ┙ ᇶ┙ ாಖ 36) 䝺 䝺 䝺 䝺 䝺 䝺 ᱜᓥ⸃ᦶ 䝺 䝺 䝺 㟝ᓥᑠᯘ ㍍▼ 39) 䜰䜹䝩䝲 12) 29kyBP 95kyBP 䝺 䝺 ጸⰋ Tn40) K-Ah/㯤ⓑ/㯮〓/㯤〓䝻䞊䝮 K-Ah/㯤ⓑ/㯮〓/〓/㯤ⓑ䝻䞊䝮/䝅䝷䝇䠄ᇶᒙ䠅 K-Ah/㯤ⓑ/㯮〓/㯤〓/〓䝻䞊䝮/䝅䝷䝇䠄ᇶᒙ䠅 K-Ah/㯤ⓑ/㯮〓/㯤〓䝻䞊䝮 K-Ah/㯤〓/㯮〓/㯤ⓑ䝻䞊䝮 K-Ah/㯤〓/㯮〓/㯤ⓑ䝻䞊䝮/䝅䝷䝇䠄ᇶᒙ䠅 ⢓ᛶ᭷ 㯤〓䚸⅊㟷 ᬯ⅊Ⰽ䠈⅊Ⰽ䠈⅊ⓑⰍ ⅊ⓑ䠈㟷⅊䠈㟷䠈⅊ ᫂㯤〓Ⰽ䠈⅊㯤Ⰽ䠈⅊Ⰽ䠈ᬯ⅊Ⰽ 〓Ⰽ䠈㟷⅊䠈ᬯ㟷⅊ 㯮⅊Ⰽ䠈㯤⅊Ⰽ䠈ᾏ◁ 㯮〓Ⰽ䠈㯮⅊Ⰽ䠈㯮Ⰽ䠈ᬯ〓Ⰽ䠈㯤⅊Ⰽ ᾏ◁䠄ᬯ〓Ⰽ䠈㯮〓Ⰽ䠈㯤〓Ⰽ䠈ⓑⰍ䠅 ⓑⰍ䠈Ⲕ〓Ⰽ䠈〓Ⰽ䠈㯮Ⰽ䠈㯤Ⰽ ⅊Ⰽ◁ᅵ 㯤Ⰽ ◁ᒙ -7- ὀ䠅ẁୣ㠃䛾༊ศ䛿䚸13)䛻ᇶ䛵䛟䠊 䈜 ෆ㝣䛛䜙➨ 1 ◁ୣ䠄᷌䠉ᓥ◁ୣ䠅䠈➨ 2䠄Ụ⏣ཎ䠉ᒣᓮ◁ୣ䠅䠈➨ 3䠄㜵₻ᯘ䠉ཊᶫ◁ୣ䠅䠈➨ 4䠄ఫྜྷ䠉୍䝑ⴥ䠅21) 䝺 䠉 ᒣஅᇛ㊧ 34) ✵ ᇶ┙ ㍍▼ 37) ᒣୗ➨ 335) ᒅᢡ⋡ ᕷ 33) ✵ ᇶ┙ ᱜᓥᩥ᫂ 䝺 䝺 䝺 㧗ཎ 38) 䝺 䠉 ᖹ⏣ 32) ༡᪉す᪉ ᇶ┙ 㟝ᓥ᪂⇞ 䝺 㟝ᓥᚚ㖊 ᒣୗ➨ 235) 䠉 ᭮➨ 231) 䠉 䠉 ୗ⏣ᓥ䊠㠃䜎䛯䛿ᇶ┙ ✵ ᾋஅᇛ 29) ᯤᮌ䞄㏕ 30) ᪂ูᗓᕝ ᪂ูᗓᕝ༡ ᱜ⏫ ୗ⏣ᓥ䊠㠃䜎䛯䛿ᇶ┙ ✵ ୗ⏣ᓥ䊢㠃 ୗ⏣ᓥ䊠㠃 28) 䠉 ᒣᓮୗ䝜ཎ➨ 122) 䠉 ⅆᒣ䜺䝷䝇ẚ䠈 㔜㖔≀⤌ᡂ 䠉 ᒣᓮୖ䝜ཎ➨ 222) 䠉 䠉 ⊷㔝 21) ୗ⏣ᓥ䊠㠃䜎䛯䛿䊢㠃 ᒣᓮ⏫ 21) 䠉 ᒣᓮ⏫ ୗ⏣ᓥ䊠㠃 䠉 ᒣᓮ⏫ ୗ⏣ᓥ䊠㠃 Ụ⏣ཎ➨ 320) ᒣᓮ⏫ ୗ⏣ᓥ䊠㠃 Ụ⏣ཎ➨ 119) 䠉 䠉 ༡᪉⏫᪉ 䞄㏕ 17) ▼⚄ 18) ᇶ┙ 䠉 䠉 㯮ኴ㑻 15) ศᯒ᪉ἲ ụෆᶓ✰⩌ 14) ୗ⏣ᓥ䊠㠃䜎䛯䛿ᇶ┙ ༡᪉⏫᪉ ๓⏣᭶⏣ 16) ༡᪉⏫ 㑇㊧ྡ⛠ 㨣⏺ ᆅ༊ྡ ᇶ┙ ẁୣ㠃 37) ᄇฟᖺ௦ AD1717 AD1471 AD1235 7.3kyBP 12.8kyBP 䝔䝣䝷 ྡ⛠ 41) 16.7kyBP ⾲ 2.1.1㻌 㑇㊧ㄪᰝ䛾ᆅ㉁ᴫせ୍ぴ⾲ 㨣⏺-ⴱཎ 㑇㊧࿘㎶䛾ᆅᒙ䛻ྵ䜎䜜䜛䝔䝣䝷 ୣ㝠〈 ➨ 1 ◁ୣすഃప‵ᆅ ୗ⏣ᓥ䊡㠃➨ 1 ◁ୣ䛸 ୣ㝠䛾ሐ㛫పᆅ Ἀ✚ᆅ ୗ⏣ᓥ䊢㠃ୖ ➨ 2 ◁ୣୖ ➨ 2 ◁ୣୖ ➨ 1 ◁ୣୖ ➨ 2 ◁ୣୖ ➨ 1 ◁ୣୖ ➨ 1 ◁ୣୖ ➨ 2 ◁ୣୖ Ἀ✚ᆅ ◁ୣ䞉◁ิ䈜 㑇㊧䛾⨨䛩䜛 57m 9䡚12m 6.5䡚7.5m 4m 3.5m 5m 2m 5m ᶆ㧗 ὥỈ䛻䜘䜛ỏ℃ Ỉ⏣+1m 䛾ᚤ㧗ᆅ Ỉ⏣+1m 䛾ᚤ㧗ᆅ Ỉ⏣+2m 䛾ᚤ㧗ᆅ Ỉ⏣+0.5m 䛾ᚤ㧗ᆅ ᾷᕝ䛾ὶ㊰ኚ䛻䜘䜚ᙧᡂ ᪂ྡ∎ᕝ䛾ỏ℃ཎ䛾ྍ⬟ᛶ ᪂ྡ∎ᕝ䛾ỏ℃ཎ䛾ྍ⬟ᛶ グ JAEA-Data/Code 2014-002 JAEA-Data/Code 2014-002 ⾲ 2.1.2㻌 ᐑᓮᖹ㔝䛻฿㐩䛧䛯ྍ⬟ᛶ䛾䛒䜛䝔䝣䝷୍ぴ⾲ 䝔䝣䝷ྡ⛠ ᱜᓥṇ ␎⛠ ⤥※ Sz-1 ᱜᓥ ᱜᓥ ᐃ᪉ἲ䈜1 ⅆᒣ䜺䝷䝇 type ᒅᢡ⋡䠄䡊䠅 AD1914 H pm 1.511-1.515 42) opx,cpx opx 1.703-1.711 42) ᄇฟᖺ௦ ᩬᬗ㖔≀ ✀㢮 AD1779 H pm 1.511-1.514 42) opx,cpx opx 1.708-1.713 42) 㟝ᓥ᪂⇞ᓅ AD1717 H pm 1.511-1.515 42) opx,cpx opx 1.698-1.708 42) AD1471 H pm 1.510-1.515 42) opx,cpx opx 1.710-1.715 42) 㟝ᓥᚚ㖊 AD1235 H - - opx,cpx opx 1.699-1.705 42) 㟝ᓥ AD788 H - - opx,cpx,ol opx 1.699-1.711 42) ᱜᓥᏳỌ Sz-2 ᪂⇞ாಖ Kr-SmK ᱜᓥᩥ᫂ SZ-3 ᱜᓥ 㟝ᓥ㧗ཎ Kr-Th 㟝ᓥ∦ῧ Kr-OhE ᱜᓥኳᖹ Sz-4 ᱜᓥ 㟝ᓥᚚụ Kr-M 㟝ᓥᚚụ AD764 H 4,600 cal.BP C 43) ᱜᓥ䠑 Sz-5 ᱜᓥ 5,600 cal.BP C 43) ᱜᓥ䠓 Sz-7 ᱜᓥ 5,000 cal.BP C 43) 㨣⏺䜰䜹䝩䝲 K-Ah 㨣⏺ 7,300 cal.BP C, OI ᱜᓥ䠍䠍 Sz-11 ᱜᓥ 8,000 cal.BP C 43) ᱜᓥ䠍䠎 Sz-12 ᱜᓥ 9,000 cal.BP C 43) 43) 44) 1.511-1.515 opx,cpx opx 1.708-1.713 42) pm 1.508-1.511 42) opx,cpx,(ho) opx 1.724-1.730 42) pm 1.509-1.515 42) opx,cpx opx 1.708-1.712 42) pm 1.509-1.514 42) opx,cpx opx 1.709-1.713 42) bw, pm bw, pm 1.504-1.513 1.506-1.512 opx opx 1.708-1.712 1.704-1.713 pm 1.513-1.517 42) opx,cpx opx,cpx opx,cpx opx 1.709-1.713 42) pm 1.510-1.514 42) opx,cpx opx 1.708-1.711 42) opx,cpx opx 1.707-1.711 42) opx,cpx opx 1.706-1.712 42) opx,cpx opx 1.705-1.707 42) opx,cpx;(qt) opx,cpx;(qt) 1.728-1.734 opx opx 1.728-1.734 opx,cpx,(ho,bi);qt opx,(cpx);qt opx;qt opx,(cpx);qt opx;qt opx opx opx opx opx 1.720-1.729 1.720-1.729 1.718-1.725 1.720-1.725 1.718-1.728 opx(cpx);qt opx(cpx);qt opx(cpx);qt opx;qt opx opx opx opx 1.720-1.725 1.720-1.729 1.719-1.725 1.719-1.730 46) 42) 42) Sz-13 ᱜᓥ 10,600 cal.BP pm 1.513-1.516 ᱜᓥ⸃ᦶ SZ-S(SZ-14) ᱜᓥ 12,800 cal.BP C 43) pm 1.509-1.513 42) 㟝ᓥᑠᯘ Kr-Kb 㟝ᓥ㡑ᅜ 16,700 cal.BP C 43) - - 29,000 cal.BP C, OI bw, pm 1.498-1.501 1.499-1.500 pm pm pm pm 1.499-1.501 1.500-1.502 1.499-1.502 1.500-1.503 pm pm pm - 1.499-1.501 1.499-1.501 1.498-1.500 - ጸⰋ Tn䠋ධᡞ AT/A-Ito/ 䠋ጔᒇ䠋㝮 A-Tm/A-OS ῝ ሯ Fkm A-Ot 䜰䝽䜸䝁䝅 Kr-Aw 䜲䝽䜸䝁䝅 Kr-Iw ᒾᡞ ⥤ 㜿⸽䠐 ⚟ᒣ 㨣⏺ⴱཎ 㜿ከ 㜿⸽䠏 㜿ከ㫽 ຍஂ⸨ A-Iw Aya sfa Aso-4 A-Fk K-Tz Ata Aso-3 Ata-Th Kkt ጸⰋ ጸⰋ ጸⰋ 31,000 cal.BP 32,500 cal.BP C C 43) pm 42) 42) ᱜᓥ䠍䠏 ഛ⪃ ᒅᢡ⋡䠄䃒䠖opx䠈n2䠖ho䠅 43) 45) 46) 46) 42) 42) 46) 46) 46) 46) 46) 46) 46) 42) 42) 42) 42) 47) 46) 46) 46) 46) 46) 46) 47) 㟝ᓥዀᏲᓅ 30,000-40,000 BP ST - - opx,cpx opx 1.698-1.703 47) 40,000-45,000 BP ST - - cpx,opx opx 1.705-1.708 47) ST 48) KA,OI pm pm pm pm pm 1.498 1.499-1.501 1.524-1.528 1.500-1.501 1.497-1.501 opx;qt opx,(cpx);qt opx,(cpx),ol opx;qt opx,cpx;qt opx opx opx opx opx 1.718-1.724 1.719-1.724 1.715-1.720 1.719-1.725 1.718-1.724 - - opx amp amp 1.506-1.510 47) 1.703-1.708 1.702-1.706 1.703-1.708 bw opx,cpx opx,cpx opx,cpx ho,opx,cpx bw 1.507-1.509 42) opx ho opx ho opx ho 1.699-1.701 1.685-1.691 1.699-1.701 1.685-1.691 1.699-1.701 1.685-1.689 opx ho opx ho opx ho 1.712-1.716 1.670-1.675 1.715-1.718 1.672-1.676 1.716-1.719 1.670-1.674 opx,cpx;qt opx,cpx;qt opx,cpx;(qt) opx,(cpx);qt opx opx opx 1.705-1.709 1.705-1.709 1.705-1.710 1.703-1.708 opx,cpx,(ho) opx,cpx opx,cpx opx opx opx 1.704-1.708 1.704-1.708 1.705-1.708 opx,cpx opx,cpx opx,cpx opx opx opx 1.700-1.705 1.702-1.705 1.701-1.705 ho,opx,(bi);qt opx ho opx ho 1.714-1.718 1.670-1.674 1.713-1.717 1.670-1.678 opx opx opx 1.718-1.725 1.718-1.724 1.720-1.725 㟝ᓥ ጸⰋ 㟝ᓥ 㜿⸽ ጸⰋ 㨣⏺ 㜿ከ 㜿⸽ 㜿ከ ຍஂ⸨ 60,000BP 45,000-50,000 BP 50,000-85,000 BP 85,000-90,000 BP 89,000BP 87,000BP 95,000-86,000 BP 90,000 BP 46) ST ST KA OI 42) 50) 51) ST 42) ho,opx,cpx - - ho,opx pm- - ho,(opx) - - ho,opx,cpx - - ho,opx,cpx 42) 1.508-1.512 1.510-1.512 - pm,bw pm,bw pm,bw 1.515-1.519 1.512-1.540 1.513-1.516 bw 1.498-1.500 42) 51) bw 1.499-1.500 49) ho,opx,qt 42) bw,pm pm bw 1.500-1.502 1.501-1.504 1.501-1.504 42) opx,cpx,(ho) opx,(ho) opx,(ho) 105,000-110,000 BP 100,000 BP 108,000 BP ST FT KA 42) KA OI 50) 330,000-340,000 BP 334,000BP 46) bw,pm bw - 42) ST OI 46) 1.496-1.500 1.497-1.500 - ST OI 240,000 BP 238,000 BP 46) bw,pm bw - 95,000 BP 91,000BP 120,000 BP 133,000 BP 47) 51) 52) 53) 51) 42) KA,ST 51) OI 47) 49) 49) 42) 47) 42) 42) 49) 49) 49) 47) 46) 46) 46) 42) 47) 49) 49) 47) 47) 42) 42) 49) n 䛾ప䛔 opx䠄䝤䝻䞁䝄䜲 42) 䝖䠅䜢≉ᚩⓗ䛻ྵ䜐 49) 46) 46) 47) 47) ከ㔞䛾ゅ㛝▼䜢ྵ䜐 49) 49) 42) 47) 49) 49) 42) 47) 49) 42) 42) 49) 42) 42) 49) 49) 42) 49) 49) 䈜1㻌 C䠖ᨺᑕᛶⅣ⣲ἲ䠈OI䠖㓟⣲ྠయ䠈ST䠖ᨺᑕᖺ௦್䛻ᇶ䛵䛟ᒙ䛛䜙䛾᥎ᐃ䠈KA䠖䜹䝸䜴䝮䜰䝹䝂䞁ἲ䠈TL䠖⇕䝹䝭䝛䝑䝉䞁䝇ἲ䠈FT䠖䝣䜱䝑䝅䝵䞁䝖䝷䝑䜽ἲ 䈜2㻌 42)䛛䜙䛿䛂ጸⰋ䜹䝹䝕䝷䛸䛭䛾࿘㎶䛃䛚䜘䜃䛂㟝ᓥ䞉ຍஂ⸨䞉ᐑᓮ䛃䛾䝕䞊䝍䜢ᘬ⏝ -8- -- 46) JAEA-Data/Code 2014-002 2.2 ⌧ᆅㄪᰝ䛾ᴫせ ⌧ᆅㄪᰝᆅᇦ䛻䛿䠈Ṕྐ௦䛾ᕧᆅ㟈䛻క䛔Ⓨ⏕䛧䛯㐣ཤ䛾ὠἼ䛻䜘䜛䜲䝧䞁䝖ሁ✚≀䛜ಖᏑ䛥 䜜䛶䛔䜛ྍ⬟ᛶ䛜㧗䛔䛸⪃䛘䜙䜜䜛䠈⾃ཎᆅᇦ䠈ᓥᒣᆅᇦ䛚䜘䜃బᅵཎᆅᇦ䜢㑅ᐃ䛧䛯䠄ᅗ 2.1.1䠈ᅗ 2.2.1䠅䠊䛣䜜䜙䜘䜚䜒䛥䜙䛻ྂ䛔௦䛾᪂ୡ䛾㝯㉳㐠ື䛻㛵䛩䜛ㄪᰝᆅᇦ䛻䛿䠈⏘ẕᕝᆅᇦ䛚䜘䜃➉ ᕝᆅᇦ䛾Ἑᕝἲ㠃㟢㢌䜢㑅ᐃ䛧䛯䠄ᅗ 2.1.1䠈ᅗ 3.2䠄䠍䠅䠈ᅗ 3.2䠄2䠅䠅䠊 ⌧ᆅㄪᰝ䛷䛿䠈ᡴᧁᘧᡭ᥀䜚䝃䞁䝥䝷䞊䜢⏝䛔䛶᥀๐䜢ᐇ䛧䛯䠊䛣䛾᥀๐䛷䛿䠈ෆᚄ⣙ 55mm 䛾㗰 〇䝁䜰䝏䝳䞊䝤䛾ᆅ┙ഃඛ➃䛻䝯䝍䝹䝅䝳䞊䠈ᑐഃ䛻䜺䜲䝗䝻䝑䝗㗰⟶䜢㐃⤖䛧䠈䜺䜲䝗䝻䝑䝗䛻ἢ䛳䛶 ㉁㔞 3kg 䜎䛯䛿 5kg 䛾䝰䞁䜿䞁䜢⮬⏤ⴠୗ䛥䛫䜛䛣䛸䛻䜘䜛ᡴᧁ䛻䜘䛳䛶䠈䝁䜰䝏䝳䞊䝤䜢ᆅ┙ෆ䜈㈏ධ 䛥䛫䜛䛾䛸ྠ䛻䠈ᮍᅛ⤖ᆅ㉁ヨᩱ䜢䝁䜰䝏䝳䞊䝤ෆ䜈᱁⣡᥇ྲྀ䛩䜛䠄ᅗ 2.2.2䠈ᅗ 2.2.3䠅䠊ᮏᡭἲ䛿䠈 ᵓ㐀䛜⡆༢䠈సᴗ䛜㎿㏿䠈䛛䛴ప䝁䝇䝖䛺᪉ἲ䛸䛧䛶䠈ὸᾏ䛾㌾ᙅ䛺ᆅ㉁ヨᩱ䛾᥇ྲྀ 54)䛺䛹䛻⏝䛔䜙䜜 䛶䛔䜛䠊ᮏ◊✲䛷䛿䠈ᆅ⾲㠃䛛䜙ẚ㍑ⓗὸ䛔༊㛫䛷ᮍᅛ⤖䛺ᅽ⦰ᛶ䛾㧗䛔䝅䝹䝖ᒙ䛒䜛䛔䛿⢓ᅵᒙ䛜 㐃⥆䛩䜛ሙྜ䛻䛿䠈ᡴᧁ䛻䜘䜛᥇ྲྀヨᩱ䛾ᅽ⦰ኚᙧ䜢ᢚไ䛩䜛䛯䜑䠈䝁䜰䝏䝳䞊䝤䜢䝅䞁䜴䜷䞊䝹ᘧ䛻 ኚ䛘䛶㟼ⓗ䛻ᤄධ䛩䜛䛺䛹䠈ᆅ㉁᮲௳䛻ᛂ䛨䛯᭱㐺䛺᪉ἲ䜢㑅ᢥ䛧䛺䛜䜙᥀๐䜢⾜䛳䛯䠊⌧ᆅ䛷᥇ྲྀ䛧 䛯᥀๐ヨᩱ䛿䠈⇱䛻䜘䜛ྵỈ⋡䛾ኚ䠈䛒䜛䛔䛿ヨᩱෆ㒊䜈䛾ኚ㉁䜔ኚⰍ䛾㐍⾜䜢ᢚไ䛩䜛䛯䜑䛻䠈 ᥇ྲྀᚋ㏿䜔䛛䛻㣗ရໟ⏝䝷䝑䝥䝣䜱䝹䝮䛷ᐦ㛢䛧䠈┤ᚄ⣙ 50mm 䛾ሷ䝡⟶䛾୰䜈⣡䛧䛶㍺㏦୰䛾 ⾪ᧁ䛻䜘䜛ኚᙧ䜢㜵䛔䛰䠊ᚋ䛷ヨᩱ䛾༙䛜ᐜ᫆䛻⾜䛘䜛䜘䛖䛻䠈ሷ䝡⟶䛿䛒䜙䛛䛨䜑⦪᩿᪉ྥ䛻䠎➼ ศ䛧䛶䛚䛝䠈䛭䜜䜙䜢ᣳ䜐䛣䛸䛻䜘䜚ヨᩱ䜢⣡䛧䛯䠊 ᮏ◊✲䛷䛿䠈᥀๐ヨᩱ䛾ほᐹ䛻ຍ䛘䠈ヨᩱ䜢᥇ྲྀ䛧䛶䛥䜎䛦䜎䛺ศᯒ䜢ᐇ䛩䜛䛣䛸䜢ᐃ䛧䛶䠈䛒䜙 䛛䛨䜑ヨᩱ䛻㊊䛜⏕䛨䛺䛔䜘䛖䛻䠈ྛ᥀๐ᆅⅬ䛻㏆᥋䛧䛶ูᏍ䜢᥀๐䛧䛯䠊䛣䛾䛖䛱 1 䛛ᡤ䛿䠈୍ᗘ䛻 ᥇ྲྀ䛩䜛㛗䛥䠄⣡䛩䜛ሷ䝡⟶䛾㛗䛥䛻┦ᙜ䠅䜢ཎ๎ 50cm 䛸䛧䠈䜒䛖 1 䛛ᡤ䛿䠈ཎ๎ 1m 䛸䛧䛯䠊∦᪉䜢 1m 䛸㛗䛟䛧䛯䛾䛿䠈㠀◚ቯ䛷䛾䠴⥺䠟䠰ほᐹ䠄ᚋ㏙䠅䛾㝿䛻䛷䛝䜛䛰䛡㐃⥆䛧䛯䝕䞊䝍䜢ྲྀᚓ䛩䜛䛯䜑䛷䛒䜛䠊 䛣䛾 1m ༢䛷᥇ྲྀ䛧䛯᪉䛾᥀๐ヨᩱ䛿䠈ヨᩱྡ䛾ᮎᑿ䛻 CT 䜢䛡䛶༊ู䛧䛯䠊 -9-- - 10 - - 10 - ベースマップは国土地理院発行の 1:5,000 国土基本図を使用． ［ ］の数値は，打撃式掘削地点の地盤標高（m）． 図 2.2.1 掘削調査地点位置図 JAEA-Data/Code 2014-002 JAEA-Data/Code 2014-002 ᅗ 2.2.2㻌 ᡴᧁᘧᡭ᥀䜚䝃䞁䝥䝷䞊ᶍᘧᵓ㐀ᅗ ᅗ 2.2.3㻌 ᡴᧁᘧᡭ᥀䜚䝃䞁䝥䝷䞊䛻䜘䜛ᆅ㉁ヨᩱ䛾᥇ྲྀ≧ἣ - 11 - 11 - JAEA-Data/Code 2014-002 2.3 ศᯒ䛾ᴫせ ᮏ◊✲䛷ᐇ䛧䛯ศᯒ䛿䠈䠴⥺ CT ᐃ䠈ᅵⰍ ᐃ䠈ᖏ☢⋡ ᐃ䠈ᐦᗘ䛚䜘䜃ྵỈ⋡䛾 ᐃ䠈྾╔Ỉ 䛾Ỉ㉁ศᯒ䠈⢏ᗘศᯒ䠈ᚤ▼ศᯒ䠈䝔䝣䝷ศᯒ䠈᭷ᶵⅣ⣲䞉◲㯤䞉❅⣲䛾ྵ᭷㔞 ᐃ䠈䛚䜘䜃ᨺ ᑕᛶⅣ⣲ᖺ௦ ᐃ䛷䛒䜛䠊ศᯒ䛚䜘䜃 ᐃ᪉ἲ䛻䛴䛔䛶䛿䠈3.1 ௨㝆䛷㡯┠䛤䛸䛻ㄝ᫂䛩䜛䠊䝷䝑䝥䝣䜱 䝹䝮䛾㛤ᑒ䛛䜙䝁䜰䛾グ㍕䠈ྛ✀ ᐃ䠈ศᯒヨᩱ䛾᥇ྲྀ䛻⮳䜛ᐊෆసᴗ䛿䠈ヨᩱ䛾⇱䜔ኚ㉁➼䜢᭱ ᑠ㝈䛸䛩䜛䛯䜑㐃⥆ᕤ⛬䛸䛧䛶㎿㏿䛻⾜䛳䛯䠊ᐊෆసᴗ䛾ᡭ㡰䛿䠈䜎䛪䝷䝑䝥䜢㛤ᑒ䛧䠈⦪᩿᪉ྥ䛻༙ ศ䛧䛯ሷ䝡⟶䛾ศ㠃䛻ἢ䛳䛶䝁䜰䜢⦪᩿᪉ྥ䛻䝢䜰䝜⥺䛷༙䛻䛩䜛䠊㟢ฟ䛧䛯䝁䜰ෆ㠃䜢䜈䜙䛺 䛹䛷ᖹ䛻䛺䜛䜘䛖䛻ᩚᙧ䛧䠈┿ᙳ䛺䜙䜃䛻ᆅ㉁グ㍕䜢⾜䛖䠊ḟ䛻༙䝁䜰㠃䜢 ᐃ㠃䛸䛧䛶䠈ᅵⰍ 䛚䜘䜃ᖏ☢⋡䜢 ᐃ䛩䜛䠊⥆䛡䛶ᮌ∦䠈ⴥ䠈㈅Ẇ䠈♟䛺䛹䛾≉ᚩⓗ䛺ヨᩱ䜢┤᥋᥇ྲྀ䛩䜛䛸䛸䜒䛻䠈༙ 䛧䛯䝁䜰䛾∦᪉䜢⏝䛔䛶䠈ᒙ┦䜢⪃៖䛧䛺䛜䜙䛚䛚䜐䛽ᩘ cm䡚10 ᩘ cm 䛾㛫㝸䛷ᐜ✚ 7cc 䛾䝥䝷䝇䝏䝑 䜽䜻䝳䞊䝤䛷ヨᩱ䜢᥇ྲྀ䛧䛯䠊䝥䝷䝇䝏䝑䜽䜻䝳䞊䝤䛷᥇ྲྀ䛧䛯ヨᩱ䛿䠈᥇ྲྀ䛸ྠ䛻‵₶㉁㔞䜢 ᐃ䛧䠈 ᜏ ᵴ䛷⇱䛥䛫䛯䛾䛱䛻䠈྾╔Ỉ䛾Ỉ㉁ศᯒ䛒䜛䛔䛿⢏ᗘศᯒ䛻⏝䛧䛯䠊ṧ䛳䛯∦ഃ䛾䝁䜰䛷䛿䠈 ᚤ▼ศᯒ䠈䝔䝣䝷ศᯒ䠈ᨺᑕᛶⅣ⣲ᖺ௦ ᐃ䠈䛚䜘䜃᭷ᶵⅣ⣲䞉◲㯤䞉❅⣲ྵ᭷㔞䛾 ᐃ䛾䛯 䜑䛾䝃䞁䝥䝸䞁䜾䜢⾜䛳䛯䠊䝃䞁䝥䝸䞁䜾⨨䛿ᆅ㉁グ㍕䛾⤖ᯝ䛻ᇶ䛵䛝Ỵᐃ䛧䠈ᚤ▼ศᯒ䠈䝔䝣䝷ศ ᯒ䠈ᨺᑕᛶⅣ⣲ᖺ௦ ᐃ䛾䛯䜑䛻䛭䜜䛮䜜 20䡚30g ⛬ᗘ䠈᭷ᶵⅣ⣲䠈◲㯤䠈❅⣲ྵ᭷㔞 ᐃ䛾 䛯䜑 50䡚100g ⛬ᗘ䛾ヨᩱ䜢᥇ྲྀ䛧䛯䠊ศᯒヨᩱ䛾῝ᗘ䜢㘓䊠䛻♧䛩䠊 - 12 - 12 -
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