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Li Tian
China University of Geosciences
38Publications
14H-index
719Citations
Publications 39
Newest
Abstract Unitary Association Method (UAM) analyses of conodont faunas from 28 sections spanning the biggest Phanerozoic end-Permian mass extinction and significant global environmental and ecosystem perturbations during the succeeding Early Triassic are presented. Based on 72 conodont species, 26 Unitary Association Zones (UAZs) are established for the latest Permian to earliest Middle Triassic of South China. These UAZs provide quantitative high-resolution tools to correlate sequences in the Ea...
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#1Wenwei Guo (China University of Geosciences)H-Index: 2
#2Jinnan Tong (China University of Geosciences)H-Index: 26
Last.Kaixuan Ji (China University of Geosciences)
view all 7 authors...
Abstract Ichnological studies are exceptionally important for reconstruction of ecosystems in the aftermath of mass extinctions, but they have only rarely been undertaken from strata deposited in continental settings during the Permian–Triassic transition. This paper systematically documents seventeen ichnogenera and three ichno-types coupled with plant fossils (mainly equisetaceous stems and roots) from the fluvial–lacustrine Late Permian to Middle Triassic Shichuanhe section in North China. Th...
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#1Huyue Song (China University of Geosciences)H-Index: 14
#2Yong Du (China University of Geosciences)H-Index: 3
Last.Timothy W. Lyons (UCR: University of California, Riverside)H-Index: 68
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Abstract The Smithian/Spathian boundary (SSB) represents a major climatic-oceanic-biotic event within the ~5-Myr-long recovery interval of the Early Triassic following the end-Permian mass extinction. The SSB was associated with pronounced cooling following the middle Smithian hyper-greenhouse, a ~ +2 to +8‰ positive carbon isotope excursion, and a second-order mass extinction, yet its underlying cause(s) remain poorly understood. Here, we review oceanic environmental changes during the middle S...
3 CitationsSource
#1Kui Wu (China University of Geosciences)
#2Li Tian (China University of Geosciences)H-Index: 14
Last.Jinnan Tong (China University of Geosciences)H-Index: 26
view all 6 authors...
Eleven conodont zones are established for the Lower Triassic of the Motianling section in the Nanpanjiang Basin, South China. Detailed size measurements on 2244 P1 conodont elements demonstrate dynamic size variation patterns during the Early Triassic that are calibrated to the Early Triassic timescale and conodont zonation. Correlation of conodont size variation with various environmental indicators shows that these size changes are primarily controlled by rapidly changing and episodic environm...
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#1Qin Ye (China University of Geosciences)H-Index: 3
#2Jinnan Tong (China University of Geosciences)H-Index: 26
Last.Shuhai Xiao (VT: Virginia Tech)H-Index: 54
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Abstract The tectonic history of the Yangtze block of South China prior to the Ediacaran Period has been a matter of debate. In particular, the tectonic history of the Shennongjia terrane in the central-northern margin of the Yangtze block is poorly understood, and the tectonic relationship between the Shennongjia terrane and the Huangling massif (exposed in the Huangling anticline) is unclear. Previous researchers have reported U-Pb dates of detrital zircons and Nd isotopic compositions of clas...
2 CitationsSource
#1Ting Song (China University of Geosciences)H-Index: 2
#2Jinnan Tong (China University of Geosciences)H-Index: 26
Last.Yunfei Huang (Yangtze University)H-Index: 6
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Abstract Immediately after the latest Permian mass extinction, bivalve faunas colonized the Permian-Triassic Transitional Beds (PTTB), especially in littoral clastic facies of South China. The Permian-Triassic (P-Tr) transitional bivalve fauna is composed of holdovers, long-term survivors and newly evolved taxa, and characterized by moderate diversity and high dominance. However, the taxonomy and ecology of this bivalve fauna of littoral clastic facies have not been well understood, especially i...
2 CitationsSource
#1Ying Cao (China University of Geosciences)H-Index: 1
#2Huyue Song (China University of Geosciences)H-Index: 14
Last.Jinnan Tong (China University of Geosciences)H-Index: 26
view all 8 authors...
Abstract Global warming is inferred to have been one of the main causes of the Permian-Triassic (P-Tr) boundary mass extinction. Although a strong temperature rise in tropical sea-surface temperatures during the latest Permian has been documented, coeval climate changes in terrestrial sections are less well-known. Here, we analyzed multiple weathering indexes (including CIA, CIW, and PIA) for two terrestrial sections in North China (Shichuanhe and Yima), all of which show a major excursion towar...
3 CitationsSource
#1Qin Ye (China University of Geosciences)H-Index: 3
#2Jinnan Tong (China University of Geosciences)H-Index: 26
Last.Shuhai Xiao (VT: Virginia Tech)H-Index: 54
view all 7 authors...
The upper Ediacaran Miaohe Member (∼551 Ma) in South China contains exceptionally preserved macroscopic carbonaceous compression fossils that provide a crucial view of the marine ecosystem shortly before the Cambrian explosion. However, these fossils were previously known only from one locality near the Miaohe Village on the northern bank of the Yangtze River. It was puzzling that equivalent strata a short distance away contained no fossils, raising questions about the environmental, ecological ...
6 CitationsSource
#1Xu Dai (China University of Geosciences)H-Index: 3
#2Haijun Song (China University of Geosciences)H-Index: 20
Last.Li Tian (China University of Geosciences)H-Index: 14
view all 8 authors...
New fossil data from two Early Triassic (Griesbachian to Dienerian) sections from South China show unusually high levels of both benthic and nektonic taxonomic richness occurring in the late Griesbachian. In total, 68 species (including 26 newly originated species) representing mollusks, brachiopods, foraminifers, conodonts, ostracods, and echinoderms occur in the late Griesbachian, indicating well-established and relatively complex marine communities. Furthermore, the nekton shows higher origin...
5 CitationsSource
#1Haijun Song (China University of Geosciences)H-Index: 20
#2Ganqing Jiang (UNLV: University of Nevada, Las Vegas)H-Index: 35
Last.C. M. Wang (China University of Geosciences)H-Index: 1
view all 10 authors...
Banded iron formations were a prevalent feature of marine sedimentation ~3.8–1.8 billion years ago and they provide key evidence for ferruginous oceans. The disappearance of banded iron formations at ~1.8 billion years ago was traditionally taken as evidence for the demise of ferruginous oceans, but recent geochemical studies show that ferruginous conditions persisted throughout the later Precambrian, and were even a feature of Phanerozoic ocean anoxic events. Here, to reconcile these observatio...
19 CitationsSource
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