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155篇 您的检索式:作者名="Bottjer"
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1Rapid Carbonate Depositional Changes Following the Permian-Triassic Mass Extinction: Sedimentary Evidence from South China显示文摘Various environmental changes were associated with the Permian-Triassic mass extinction at 252.2 Ma. Diverse unusual sediments and depositional phenomena have been uncovered as responses to environmental and biotic changes. Lithological and detailed conodont biostratigraphic correlations within six Permian-Triassic boundary sections in South China indicate rapid fluctuations in carbonate deposition. Four distinct depositional phases can be recognized:(1) normal carbonate deposition on the platform and slope during the latest Permian;(2) reduced carbonate deposition at the onset of the main extinction horizon;(3) expanded areas of carbonate deposition during the Hindeodus changxingsensis Zone to the H. parvus Zone; and(4) persistent mud-enriched carbonate deposition in the aftermath of the Permian-Triassic transition. Although availability of skeletal carbonate was significantly reduced during the mass extinction, the increase in carbonate deposition did not behave the same way. The rapid carbonate depositional changes, presented in this study, suggest that diverse environmental changes played key roles in the carbonate deposition of the Permian-Triassic mass extinction and onset of its aftermath. An overview of hypotheses to explain these changes implies enhanced terrestrial input, abnormal ocean circulation and various geobiological processes contributed to carbonate saturation fluctuations, as the sedimentary response to large volcanic eruptions.Li Tian Jinnan Tong David Bottjer Daoliang Chu Lei Liang Huyue Song Haijun Song 2015Journal of Earth Science2015,26,2:2
2Changes in Bone Mass and Bone Turnover Following Distal Forearm Fracture显示文摘B. M. Ingle S. M. Hay H. M. Bottjer R. Eastell 1999Osteoporosis International1999,,5:1
3Restriction of a Late Neoproterozoic biotope: suspect-microbial struc- tures and trace fossils at the Vendian-Cambrian transi- tion 显示文摘HAGADORN J W BOTTJER D J 1999Palaios1999,14,:1
4Age and sex differences in mitotic activity within the zebra finch telencephalon 显示文摘Dewulf V Bottjer S W 2002The Journal of Neuroscience2002,22,10:1
5Changes in bone mass and bone turnover following distal forearm fracture显示文摘Ingle BM Hay SM Bottjer HM 1999Osteoporos Int1999,10,:1
6Neurogenesis within the juvenile zebra finch telencephalic ventricular zone: a map of proliferation activity 显示文摘Dewulf V Bottjer S W 2005The Journal of Comparative Neurology2005,481,1:1
7Changes in bonemass and bone turnover followingdistal forearm fracture显示文摘Ingle BM Hay SM Bottjer HM 1999OsteoporosInt1999,10,5:1
8Orbital forcing and sedimentary se- quences 显示文摘Fischer A G Bottjer D J 1991Journal of Sedimentary Petrology1991,61,7:1
9Precambrian animal life: Taphonomy of phosphatized metazoan embryos from southwest China显示文摘Dornbos S Q Bottjer D Chen J Y 2005Lethaia2005,38,2:1
10Lower Triassic large sea floor carbonate cements:Their origin and a mechanism for the prolonged biotic recovery from the end-Permian mass extinction显示文摘Woods A D Bottjer D J Mutti M 1999Geology1999,27,7:1
11Environmental controls on the taphonomy of phosphatized animals and animal embryos from the Neoproterozoic Doushantuo Formation, Southwest China 显示文摘Dornbos S Q Bottjer D J Chen J Y 2006Palaios2006,21,1:1
12Late Early Triassic microbial reefs of the western United States:a description and model for their deposition in the aftermath of the endPermian mass extinction显示文摘Pruss S B Bottjer D J 2004Palaeogeography Palaeoclimatology Palaeoecology2004,211,12:1
13Changes in bone mass and bone turnover following ankle fracture 显示文摘Ingle BM Hay SM Bottjer HM 1999Osteoporos Int1999,10,:1
14The Cambrian substrate revolution 显示文摘BOTTJER D J HAGADORN J W DORNBOS S Q 2000GSA Today2000,10,:1
15The paleoenvironmental distribution of Phanerozoic wrinkle structures显示文摘Mata S Bottjer D J 2009Earth-Science Reviews2009,96,3:1
16Changes in bone mass and bone turnover following distal forearm fracture 显示文摘Ingle BM Hay SM Bottjer HM 1999Osteoporos lnt1999,10,5:1
17Ocular Component Measure-ment Using the Zeiss IOL Master显示文摘Sheng H Bottjer CA Bullimore MA 2004Optom Vis Sci2004,81,1:1
18Distribution of Ammonoids in the Lower Triassic Union Wash Formation (Eastern California) : Evidence for Paleoceanographic Conditions During Recovery from the End-Permian Mass Extinction显示文摘Woods A D Bottjer D J 2000Palaios2000,15,:1
19Changes in bone mass and bone tumover following distal forearm fracture 显示文摘Ingle BM Hay SM Bottjer HM 1999Osteoporos Int1999,10,:1
20Paleo- ecology of benthic metazoans in the Early Cambrian Maotianshan Shale biota and the Middle Cambrian Bur- gess Shale biota: evidence for the Cambrian substrate revolution 显示文摘DORNBOS S Q BOTTJER D J CHEN J Y 2005Palaeogeography Palaeociimatoiogy Palaeoecology2005,220,:1
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