Time-calibrated Milankovitch cycles for the late Permian.
Time-calibrated Milankovitch cycles for the late Permian.
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二叠纪晚期的米兰科维奇周期时间校准
DOI:
10.1038/ncomms3452
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发表时间:
2013
影响因子:
16.6
通讯作者:
Yang, Tianshui
中科院分区:
文献类型:
--
作者:
Wu, Huaichun;Zhang, Shihong;Hinnov, Linda A.;Jiang, Ganqing;Feng, Qinglai;Li, Haiyan;Yang, Tianshui
An important innovation in the geosciences is the astronomical time scale. The astronomical time scale is based on the Milankovitch-forced stratigraphy that has been calibrated to astronomical models of paleoclimate forcing; it is defined for much of Cenozoic–Mesozoic. For the Palaeozoic era, however, astronomical forcing has not been widely explored because of lack of high-precision geochronology or astronomical modelling. Here we report Milankovitch cycles from late Permian (Lopingian) strata at Meishan and Shangsi, South China, time calibrated by recent high-precision U–Pb dating. The evidence extends empirical knowledge of Earth’s astronomical parameters before 250 million years ago. Observed obliquity and precession terms support a 22-h length-of-day. The reconstructed astronomical time scale indicates a 7.793-million year duration for the Lopingian epoch, when strong 405-kyr cycles constrain astronomical modelling. This is the first significant advance in defining the Palaeozoic astronomical time scale, anchored to absolute time, bridging the Palaeozoic–Mesozoic transition.
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影响因子:
3.1
作者:
Jin, Yugan;Wang, Yue;Cao, Changqun
通讯作者:
Cao, Changqun
影响因子:
1.8
作者:
Cao, C. Q.;Yang, Y. C.;Summons, R. E.
通讯作者:
Summons, R. E.
影响因子:
5.8
作者:
Algeo, Thomas J.;Twitchett, Richard J.
通讯作者:
Twitchett, Richard J.
DOI:
10.1016/b978-0-444-59425-9.00004-4
发表时间:
2012-01-01
期刊:
GEOLOGIC TIME SCALE 2012, VOLS 1 & 2
影响因子:
--
作者:
Hinnov, L. A.;Hilgen, F. J.
通讯作者:
Hilgen, F. J.
影响因子:
56.9
作者:
Jin, YG;Wang, Y;Erwin, DH
通讯作者:
Erwin, DH