Asian monsoons in a late Eocene greenhouse world

被引：454

作者：

Licht, A. ^{[1
,2
,3
]}

van Cappelle, M. ^{[4
,5
]}

Abels, H. A. ^{[4
,6
]}

Ladant, J. -B. ^{[7
]}

Trabucho-Alexandre, J. ^{[8
]}

France-Lanord, C. ^{[2
]}

Donnadieu, Y. ^{[7
]}

Vandenberghe, J. ^{[9
]}

Rigaudier, T. ^{[2
]}

Lecuyer, C. ^{[10
]}

Terry, D., Jr. ^{[11
]}

Adriaens, R. ^{[6
]}

Boura, A. ^{[12
]}

Guo, Z. ^{[13
]}

Soe, Aung Naing ^{[14
]}

Quade, J. ^{[3
]}

Dupont-Nivet, G. ^{[4
,13
,15
,16
]}

Jaeger, J. -J. ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, Inst Paleoprimatol Paleontol Humaine Evolut & Pal, UMR 7262, F-86000 Poitiers, France

[2] Univ Lorraine, CNRS, Ctr Rech Petrograph & Geochim, UMR 7358, F-54501 Vandoeuvre Les Nancy, France

[3] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA

[4] Univ Utrecht, Dept Earth Sci, NL-3584 CD Utrecht, Netherlands

[5] Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London SW7 2AZ, England

[6] Katholieke Univ Leuven, Dept Earth & Environm Sci, B-3001 Louvain, Belgium

[7] CNRS, Lab Sci Climat & Environm, UMR 8212, F-91198 Gif Sur Yvette, France

[8] Univ Durham, Dept Earth Sci, Durham DH1 3LE, England

[9] Vrije Univ, Dept Earth Sci, NL-1081 HV Amsterdam, Netherlands

[10] Univ Lyon, CNRS, Inst Univ France, Lab Geol Lyon,UMR 5276, F-69622 Lyon, France

[11] Temple Univ, Dept Earth & Environm Sci, Philadelphia, PA 19122 USA

[12] UPMC, MNHN, CNRS, Ctr Rech Paleodiversite & Paleoenvironm, F-75005 Paris, France

[13] Peking Univ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China

[14] Def Serv Acad, Dept Geol, Pyin Oo Lwin, Myanmar

[15] Univ Rennes, CNRS, UMR 6118, F-35042 Rennes, France

[16] Univ Potsdam, Inst Earth & Environm Sci, D-14476 Potsdam, Germany

来源：

NATURE | 2014年 / 513卷 / 7519期

基金：

中国国家自然科学基金;

关键词：

LATE MIDDLE EOCENE; GRAIN-SIZE; ISOTOPE COMPOSITIONS; PONDAUNG FORMATION; STABLE-ISOTOPES; CLIMATE; OXYGEN; CHINA; RECONSTRUCTIONS; SENSITIVITY;

D O I：

10.1038/nature13704

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

The strong present-day Asian monsoons are thought to have originated between 25 and 22 million years (Myr) ago, driven by Tibetan-Himalayan uplift. However, the existence of older Asian monsoons and their response to enhanced greenhouse conditions such as those in the Eocene period (55-34Myrago) are unknown because of the paucity of well-dated records. Here we show late Eocene climate records revealing marked monsoon-like patterns in rainfall and wind south and north of the Tibetan-Himalayan orogen. This is indicated by low oxygen isotope values with strong seasonality in gastropod shells and mammal teeth from Myanmar, and by aeolian dust deposition in northwest China. Our climate simulations support modern-like Eocene monsoonal rainfall and show that a reinforced hydrological cycle responding to enhanced greenhouse conditions counterbalanced the negative effect of lower Tibetan relief on precipitation. These strong monsoons later weakened with the global shift to icehouse conditions 34 Myr ago.

引用

页码：501 / +

页数：14

共 51 条

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Step-wise change of Asian interior climate preceding the Eocene-Oligocene Transition (EOT) [J].