Core-drilling survey of Cretaceous lacustrine deposits in Mongolia: land-ocean linkage during OAE period on tens of thousands year scale

• Project/Area Number: 25302011
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Stratigraphy/Paleontology
• Research Institution: Ibaraki University
• Principal Investigator: Ando Hisao 茨城大学, 理学部, 教授 (50176020)
• Co-Investigator(Kenkyū-buntansha): HASEGAWA HITOSHI 名古屋大学, 博物館, 特任准教授 (80551605) ; OHTA TORU 早稲田大学, 教育総合科学学術院, 准教授 (40409610) ; YAMAMOTO MASANOBU 北海道大学, 大学院地球環境科学研究院, 准教授 (60332475) ; HASEBE NORIKO 金沢大学, 環日本海域環境研究センター, 准教授 (60272944) ; HASEGAWA TAKASHI 金沢大学, 自然システム学系, 教授 (50272943)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2013: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
• Keywords: 白亜紀中期 / モンゴル / 湖成堆積物 / 温室地球 / 古気候 / 古環境変動 / 地球軌道要素 / 湿潤化 / 白亜紀 / 陸成層

Outline of Final Research Achievements

Detailed cyclic stratigraphy of the lacustrine Lower Cretaceous Shinekhudag Formation distributed in Gobi desert, southeast Mongolia, is established through outcrop and three drilled core sections. In terms of radiometric age measurements by FT and U/Pb methods for zircon grains from intercalated tuffaceous layers, the depositional age of the Shinekhudag Formation can be estimated to be during 123-119 Ma (early Aptian).
Several kinds of analyses for annual varve thickness and chemical proxy in mudstone sequences, show climatic and lake-level changes controlled, respectively by solar forcing (11, 88 and 400 yrs) and orbital cycles (20, 100 and 400 kyrs). Therefore, the Shinekhudag lacustrine deposits are interpreted to record the millennial- to orbital-scale paleoclimatic changes in mid-latitude Asia during the Aptian period.

Research Products

• [Int'l Joint Research] モンゴル科学アカデミー古生物地質研究所/モンゴル国立大学地質地球物理学教室/モンゴル理工大学地質学鉱床学教室(モンゴル)
• [Int'l Joint Research] 中国科学院南京地質古生物学研究所(中国)
• [Int'l Joint Research] ライプニッツ大学ハノーバー(ドイツ)
• [Journal Article] A new species of the genus Adocus (Order Testudines; Family Adocidae) from the Lower Cretaceous of Southwest Japan (2015)
  • Author(s): Sonoda, T., Hirayama, R., Okazaki, Y. and Ando, H.
  • Journal Title: Paleontological Research Volume: 19 Issue: 1 Pages: 26-32
  • DOI: 10.2517/2014pr026
  • Peer Reviewed
• [Journal Article] Confirmation of a Middle Jurassic age for the Eedemt Formation in Dundgobi Province, southeast Mongolia: constraints from the discovery of new spinicaudatans (clam shrimps) (2014)
  • Author(s): Gang Li, Hisao Ando, Hitoshi Hasegawa, Masanobu Yamamoto, Takashi Hasegawa, Tohru Ohta, Noriko Hasebe, and Niiden Ichinnorov
  • Journal Title: Alcheringa：An Australasian Journal of Palaeontology Volume: 38-3 Issue: 3 Pages: 305-316
  • DOI: 10.1080/03115518.2014.870834
  • Peer Reviewed
• [Presentation] モンゴル湖成層から読み解く白亜紀中期“超温室期”の十年スケール～地球軌道要素スケールの気候システム変動 (2016)
  • Author(s): 長谷川 精,山本鋼志,勝田長貴,三村耕一,安藤寿男,太田 享,山本正伸,長谷川 卓,長谷部徳子, Ichinnorov N., Heimhofer U., Enerel G., Oyunjargal G.,西本昌司, 山口浩一, 鈴木徳行,入野智久,阿部文雄,村木 綏
  • Organizer: 日本地球惑星科学連合2016年連合大会
  • Place of Presentation: 幕張メッセ（千葉市）
  • Year and Date: 2016-05-22
  • Invited
• [Presentation] 日本列島の白亜系地層記録の意義：層序・化石相・堆積盆変遷史 (2016)
  • Author(s): 安藤寿男・高橋雅紀
  • Organizer: 日本古生物学会第165回例会
  • Place of Presentation: 京都大学時計台記念館
  • Year and Date: 2016-01-29
• [Presentation] 白亜紀の同位体層序と国際対比 (2016)
  • Author(s): 長谷川卓
  • Organizer: 日本古生物学会第165回例会
  • Place of Presentation: 京都大学時計台記念館
  • Year and Date: 2016-01-29
• [Presentation] 岩手県北東部に分布する上部白亜系久慈層群の堆積相とシーケ ンス層序 (2015)
  • Author(s): 三塚俊輔・安藤寿男
  • Organizer: 日本地質学会第122年学術大会
  • Place of Presentation: 信州大学長野キャンパス（長野市）
  • Year and Date: 2015-09-11
• [Presentation] 北海道蝦夷層群における白亜紀海洋無酸素化事変の原因としての“風化仮説”の検証 (2015)
  • Author(s): 上形由布子・高木悠花・太田 亨
  • Organizer: 日本地質学会第122年学術大会
  • Place of Presentation: 信州大学長野キャンパス（長野市）
  • Year and Date: 2015-09-11
• [Presentation] Current status of IGCP 608 "Asia-Pacific Cretaceous Ecosystems" and the further cooperation with IGCP 609 (2015)
  • Author(s): Hisao Ando
  • Organizer: International Workshop on Climate and Environmental Evolution in the Mesozoic Greenhouse World and Third IGCP 609 Workshop on Cretaceous Sea-Level Change
  • Place of Presentation: 南京大学（中国）
  • Year and Date: 2015-09-06
  • Int'l Joint Research / Invited
• [Presentation] Cretaceous stratal records: stratigraphic successions, facies and biofacies in Japanese Islands (2015)
  • Author(s): Hisao Ando
  • Organizer: Third International Symposium of IGCP608 jointly with 12th Mesozoic Terrestrial Ecosystems
  • Place of Presentation: 遼寧大夏ホテル（中国 瀋陽）
  • Year and Date: 2015-08-16
  • Int'l Joint Research
• [Presentation] 岩手県野田玉川海岸における上部白亜系久慈層群の堆積相とシーケンス層序 (2015)
  • Author(s): 三塚俊輔・安藤寿男
  • Organizer: 日本堆積学会2015年つくば大会
  • Place of Presentation: 筑波大学大学会館
  • Year and Date: 2015-04-25
• [Presentation] Terrestrial paleoenvironments during the mid-Cretaceous reconstructed from the continuous lacustrine strata in Southeast Mongolia (2014)
  • Author(s): Ando, H., Hasegawa, H., Ohta, T., Hasegawa, T., Yamamoto, M., Hasebe, N., Murata, T., Shinya, H., Li, G., Ichinnorov, N., Erdenetsogt, B., Heimhofer, U.
  • Organizer: 2nd International Symposium on Earth History of Asia
  • Place of Presentation: 新潟大学五十嵐キャンパス自然科学研究科
  • Year and Date: 2014-10-31 – 2014-11-01
  • Invited
• [Presentation] 中期白亜紀における海洋無酸素事変の新作業仮説“風化仮説”の室内実験検証 (2014)
  • Author(s): 佐々木 岳・太田 亨
  • Organizer: 日本地質学会第121年学術大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-13 – 2014-09-15
• [Presentation] Reconstruction of terrestrial paleo-hydrological change during the mid-Cretaceous “Supergreenhouse” period: Insights from the lacustrine records (Shinekhudag Fm.) of southeast Mongolia (2014)
  • Author(s): Hasegawa, H., Ando, H., Ohta, T., Hasegawa, T., Yamamoto, M., Hasebe, N., Murata, T., Shinya, H., Li, G., Ichinnorov, N., Erdenetsogt, B. and Heimhofer, U.
  • Organizer: 2nd International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: 早稲田大学大隈講堂
  • Year and Date: 2014-09-04 – 2014-09-06
• [Presentation] Stratigraphic succession of Conchostracan fossils from the lacustrine deposits in the Shinekhudag area (Lower Cretaceous), Eastern Gobi basin, Southeast Mongolia (2014)
  • Author(s): Murata, T., Li, G., Ando, H., Hasegawa, H., Hasegawa, T., Ohta, T., Yamamoto, M., Hasebe, N. and Ichinnorov, N.
  • Organizer: 2nd International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: 早稲田大学大隈講堂
  • Year and Date: 2014-09-04 – 2014-09-06
• [Presentation] TEX86-based lake water temperatures in Jurassic and Cretaceous Mongolia (2014)
  • Author(s): Yamamoto, M., Ando, H., Hasegawa, H., Hasegawa, T., Ohta, T., Hasebe, N., Murata, T., Li, G. and Ichinnorov, N.
  • Organizer: 2nd International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: 早稲田大学大隈講堂
  • Year and Date: 2014-09-04 – 2014-09-06
• [Presentation] Fossil turtles from the Lower Cretaceous Tetori Group in central Japan (2014)
  • Author(s): Sonoda, T., Azuma, Y., Hirayama, R. and Ando, H.
  • Organizer: 2nd International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: 早稲田大学大隈講堂
  • Year and Date: 2014-09-04 – 2014-09-06
• [Presentation] Bottom water paleothermometry: screening late Cretaceous calcareous nodules for application of oxygen isotope method (2014)
  • Author(s): Kobiyama, Y., Yonezawa, S., Suzuki, T. and Hasegawa, T.
  • Organizer: 2nd International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: 早稲田大学大隈講堂
  • Year and Date: 2014-09-04 – 2014-09-06
• [Presentation] Another world of OAE2: development of oxic water around Pacific Margin (2014)
  • Author(s): Hasegawa, T.
  • Organizer: 2nd International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: 早稲田大学大隈講堂
  • Year and Date: 2014-09-04 – 2014-09-06
• [Presentation] モンゴルの年縞湖成層のラミナレベル解析： 白亜紀中期“超温室期”の数年～数十年スケール気候変動の解明に向けて (2014)
  • Author(s): 長谷川精・安藤寿男・太田亨・長谷川卓・山本正伸・長谷部徳子・村田崇行・新谷広紀・Li, G.・Ichinnorov, N.・西本昌司・山口浩一・岩間由希
  • Organizer: 日本堆積学会2014年山口大会
  • Place of Presentation: 山口大学
  • Year and Date: 2014-03-14 – 2014-03-17
• [Presentation] モンゴル南東部ゴビ砂漠シネフダグ地域の下部白亜系湖成層におけるカイエビ化石のタフォノミーおよび古生態 (2014)
  • Author(s): 村田崇行・Li, G.・安藤寿男・長谷川精・長谷川卓・太田亨・山本正伸・長谷部徳子・Ichinnorov, N.
  • Organizer: 日本古生物学会第163回例会
  • Place of Presentation: 兵庫県立人と自然の博物館（三田市）
  • Year and Date: 2014-01-24 – 2014-01-26
• [Presentation] Terrestrial paleoenvironments during the intervals of Oceanic Anoxic Events reconstructed from the Cretaceous lacustrine deposits in Southeast Mongolia (2013)
  • Author(s): Ando,H., Hasegawa, H., Hasegawa, T., Ohta, T., Yamamoto, M., Hasebe, N., Murata, T., Li G. and Ichinnorov, N.
  • Organizer: 1st International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: Birbal Sahni 古植物研究所（インド ラクナウ）
  • Year and Date: 2013-12-20 – 2014-12-22
• [Presentation] Taphonomy and paleoecology of the Lower Cretaceous Conchostracans from Lacustrine Deposits in the Eastern Gobi Basin, Southeast Mongolia (2013)
  • Author(s): Murata, T., Li, G., Ando, H, Hasegawa, H., Hasegawa, T., Ohta, T., Yamamoto, M., Hasebe, N. and Ichinnorov, N.
  • Organizer: 1st International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: Birbal Sahni 古植物研究所（インド ラクナウ）
  • Year and Date: 2013-12-20 – 2014-12-22
• [Presentation] First report on Cretaceous paleoweathering rates in western Panthalassa: Evidence of global enhancement of continental weathering during OAE 2 (2013)
  • Author(s): Ohta, T. and Kamigata, Y.
  • Organizer: 1st International Symposium of International Geoscience Programme (IGCP) Project 608 “Cretaceous Ecosystems and Their Responses to Paleoenvironmental Changes in Asia and Western Pacific”
  • Place of Presentation: Birbal Sahni 古植物研究所（インド ラクナウ）
  • Year and Date: 2013-12-20 – 2014-12-20
• [Presentation] モンゴル南東部白亜系湖成層における鉱物・全岩化学組成を用いた湖水面および古気温変動の解読 (2013)
  • Author(s): 新谷広紀・太田 亨・安藤寿男・長谷川 精・長谷川 卓・山本正伸・長谷部徳子・村田崇行・Li, G.・Ichinnorov, N.
  • Organizer: 日本地質学会第120年学術大会
  • Place of Presentation: 東北大学
  • Year and Date: 2013-09-14 – 2013-09-16
• [Presentation] アジア大陸における白亜紀大陸地殻風化度--海洋無酸素事変と風化度増大の関係性 (2013)
  • Author(s): 太田 亨・上形由布子
  • Organizer: 日本地質学会第120年学術大会
  • Place of Presentation: 東北大学
  • Year and Date: 2013-09-14 – 2013-09-16
• [Presentation] 福井県勝山市の下部白亜系手取層群北谷層の化石カメ類 (2013)
  • Author(s): 薗田哲平・東 洋一・平山廉・安藤寿男
  • Organizer: 日本古生物学会2013年年会
  • Place of Presentation: 熊本大学
  • Year and Date: 2013-06-28 – 2013-06-30
• [Remarks] 茨城大学理学部地球環境科学コース 安藤研究室
  • URL: http://paleogeo-ando.sci.ibaraki.ac.jp/
• [Remarks] 茨城大学理学部地球環境科学コース 安藤研究室
  • URL: http://paleogeo-ando.sci.ibaraki.ac.jp/index.php
• [Funded Workshop] IGCP608第3回国際研究集会および第12回中生代陸生生態系シンポジウム (2015)
  • Place of Presentation: 遼寧大夏ホテル（中国・瀋陽市）
  • Year and Date: 2015-08-16