Timing, cause and impact of the late Eocene stepwise sea retreat from the Tarim Basin (west China)

被引:156
作者
Bosboom, Roderic [1 ]
Dupont-Nivet, Guillaume [1 ,2 ,3 ]
Grothe, Arjen [4 ]
Brinkhuis, Henk [4 ]
Villa, Giuliana [5 ]
Mandic, Oleg [6 ]
Stoica, Marius [7 ]
Kouwenhoven, Tanja [4 ]
Huang, Wentao [1 ,2 ,3 ]
Yang, Wei [2 ,3 ]
Guo, ZhaoJie [2 ]
机构
[1] Univ Utrecht, Fac Geosci, Paleomagnet Lab Ft Hoofddijk, NL-3584 CD Utrecht, Netherlands
[2] Peking Univ, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
[3] Univ Rennes 1, UMR 6118, F-35042 Rennes, France
[4] Univ Utrecht, Fac Geosci, Dept Earth Sci, Lab Palaeobot & Palynol, NL-3584 CD Utrecht, Netherlands
[5] Univ Parma, Dipartimento Fis & Sci Terra, I-43100 Parma, Italy
[6] Nat Hist Museum Vienna, Geol Palaeontol Dept, A-1010 Vienna, Austria
[7] Univ Bucharest, Fac Geol & Geophys, Dept Geol & Paleontol, Bucharest 010041, Romania
关键词
Eocene; Asia; Tarim Basin; Paratethys Sea; Biostratigraphy; Palaeogeography; NORTHERN TIBETAN PLATEAU; MIDDLE EOCENE; EARLY OLIGOCENE; TIAN-SHAN; ISOTOPIC CONSTRAINTS; DINOFLAGELLATE CYSTS; PALEOGENE EVOLUTION; RESEARCH BOREHOLE; UPLIFT HISTORY; CLIMATE-CHANGE;
D O I
10.1016/j.palaeo.2014.03.035
中图分类号
P9 [自然地理学];
学科分类号
070501 [自然地理学];
摘要
A vast shallow epicontinental sea extended across Eurasia and was well-connected to the Western Tethys before it retreated westward and became isolated as the Paratethys Sea. However, the palaeogeography and the timing of this westward retreat are too poorly constrained to determine potential wider environmental impacts, let alone understanding underlying mechanisms of the retreat such as global eustasy and tectonism associated with the Indo-Asia collision. Here, an improved chronostratigraphic and palaeogeographic framework is provided for the onset of the proto-Paratethys Sea retreat at its easternmost extent in the Tarim Basin in western China is provided. Five different third-order sea-level cycles can be recognised from the Cretaceous-Palaeogene sedimentary record in the Tarim Basin, of which the last two stepped successively westwards as the sea retreated after the maximum third incursion. New biostratigraphic data from the fourth and fifth incursions at the western-most margin of the Tarim Basin are compared to our recent integrated bio-magneto-stratigraphic results on the fourth incursion near the palaeodepocentre in the south-western part of the basin. While the fourth incursion extended throughout the basin and retreated at similar to 41 Ma (base Cl8r), the last and fifth incursion is restricted to the westernmost margin and its marine deposits are assigned a latest Bartonian-early Priabonian age from similar to 38.0 to similar to 36.7 Ma (near top Cl 7n.2n to base Cl 6n.2n). Similar to the fourth, the fossil assemblages of the fifth incursion are indicative of shallow marine, near-shore conditions and their widespread distribution across Eurasia suggests that the marine connection to the Western Tethys was maintained. The lack of diachronicity of the fourth incursion between the studied sections across the southwest Tarim Basin suggests that the sea entered and withdrew relatively rapidly, as can be expected in the case of eustatic control on a shallow epicontinental basin. However, the westward palaeogeographic step between the fourth and fifth incursions separated by several millions of years rather suggests the combined long-term effect of tectonism, possibly associated with early uplift of the Pamir-Kunlun Shan thrust belt. The fourth and fifth regressions are time-equivalent with significant aridification steps recorded in the Asian interior, thus supporting climate modelling results showing that the stepwise sea retreat from Central Asia amplified the acidification of the Asian interior. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:101 / 118
页数:18
相关论文
共 157 条
[1]
Step-wise change of Asian interior climate preceding the Eocene-Oligocene Transition (EOT) [J].
Abels, Hemmo A. ;
Dupont-Nivet, Guillaume ;
Xiao, Guoqiao ;
Bosboom, Roderic ;
Krijgsman, Wout .
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2011, 299 (3-4) :399-412
[2]
STRATIGRAPHIC MODELING OF EPICONTINENTAL BASINS - 2 APPLICATIONS [J].
AIGNER, T ;
BRANDENBURG, A ;
VANVLIET, A ;
DOYLE, M ;
LAWRENCE, D ;
WESTRICH, J .
SEDIMENTARY GEOLOGY, 1990, 69 (3-4) :167-190
[3]
The Paleocene and Eocene in the Russian part of West Eurasia [J].
Akhmet'ev, M. A. ;
Beniamovski, V. N. .
STRATIGRAPHY AND GEOLOGICAL CORRELATION, 2006, 14 (01) :49-72
[4]
Paleocene and Eocene floras of Russia and adjacent regions: Climatic conditions of their development [J].
Akhmetiev, M. A. .
PALEONTOLOGICAL JOURNAL, 2007, 41 (11) :1032-1039
[5]
Arabia-Eurasia collision and the forcing of mid-Cenozoic global cooling [J].
Allen, Mark B. ;
Armstrong, Howard A. .
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2008, 265 (1-2) :52-58
[6]
Exhumational history of the north central Pamir [J].
Amidon, William H. ;
Hynek, Scott A. .
TECTONICS, 2010, 29
[7]
[Anonymous], 2002, PALEOGENE SYNCLINAUX
[8]
[Anonymous], DICT CHINESE STRATIG
[9]
[Anonymous], LITHOSTRATIGRAPHIC D
[10]
Apostolescu V., 1962, MEM BUR RECH GEOL MI, V28, P1035