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石油技術70-1.pdf2.26 MBPDF見る/開く

タイトル: ヒマラヤ山脈のテクトニクスと東アジアの古環境・古気候の変動
その他のタイトル: Paleoenvironment and climate changes caused by the Himalayan Tectonics in the East Asia
著者: 西, 弘嗣 著作を一覧する
高嶋, 礼詩 著作を一覧する
キーワード: Himalaya
Asian Monsoon
Climate Changes
発行日: 2005年 1月 1日
出版者: 石油技術協会(The Japanese Association for Petroleum Technology)JAPT
誌名: 石油技術協会誌=Journal of the Japanese Association for Petroleum Technology
巻: 70
号: 1
開始ページ: 6
終了ページ: 14
抄録: The Indian subcontinent and Asian continent first contacted in the late Cretaceous (about 65Ma) and strongly collided after 52Ma because northward motion of the Indian Subcontinent slowed from 18-20cm/yr to 4.5cm/yr. Although the first record of uplift in Himalayan regions has been recorded during the Eocene. Major uplifts of the Himalayan Range and Tibetan Plateau and following sediment supply started from Oligocene through Miocene. Particularly, the rapid uplift stages of Himalayan-Tibetan regions have been recognized, at least. Around 8Ma and the last 1Ma based on sedimentological studies of marine terrestrial sequences. The micropaleontological studies in marine sequences revealed that the increased elevations in the Himalayan-Tibetan regions forced monsoonal circulation about 8Ma, which produced intense upwelling around the Arabian Sea and more seasonal climate changes of terrestrial sequences around the southern Asia. The hypothesis that uplift of plateaus and mountains caused large-scale climate changes during the Cenozoic is still unknown. However, an enhanced chemical weathering due to tectonic uplift in the Himalayan-Tibetan regions may be explained as the active driving force of the Cenozoic global cooling at the beginning of 50Ma.
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 高嶋 礼詩


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