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The influence of the Late Devonian Kellwasser events on deep-water ecosystems: Evidence from palaeontological and geochemical records from South China
Huang, Cheng1,2; Song, Junjun (宋俊俊)2,3; Shen, Jun4; Gong, Yiming2
2018-09-01
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号504页码:60-74
摘要

The Late Devonian Frasnian-Famennian (F-F) event, consisting of the Lower and Upper Kellwasser events, had a severe impact on shallow-water ecosystems, while the effect on deep-water ecosystems is ambiguous. In order to recognize the Kellwasser events and to evaluate their influences on the deep-water ecosystems, a newly refined conodont biostratigraphic framework spanning the Lower Palmatolepis rhenana Zone to the Pa. delicatula platys Zone has been established in the Nandong section (basinal facies), Guangxi, South China. The Upper Devonian Lower and Upper Kellwasser horizons (LKH and UKH) have been recognized in the deep-water facies on the basis of lithological variations, biological turnovers, and positive carbon isotope (delta C-13(carb)) excursions. The LKH is characterized by the enrichment of marine nektonic communities (e.g. conodonts, homoctenids, and entomozoacean ostracods), whereas the top of the UKH is barren of fossil organisms, suggesting that the Upper Kellwasser event had a more severe effect on nekton than the Lower Kellwasser event. The Upper Kellwasser (UK) delta(13)C(carb )positive excursion lags behind the enrichment of Cu, Ni, Mo and V, indicating that the UK delta C-13(carb) positive excursion was probably related to elevated primary productivity, which induced oxygen depletion in the water column. The UK delta C-13(carb) positive excursion peak prior to the F-F boundary indicates a more limited effect of riverine influx on the deep-water setting, which suggests that the regional palaeogeographic configuration played an important role in the carbon cycle.

关键词Frasnian-famennian Basinal Fades Conodont Carbon Isotope Productivity Anoxia
DOI10.1016/j.palaeo.2018.05.006
语种英语
关键词[WOS]Frasnian-famennian Boundary ; Carbon-isotope Stratigraphy ; Holy Cross Mountains ; Mass Extinction ; Frasnian/famennian Boundary ; Canning Basin ; Western-australia ; Conodont Biostratigraphy ; Entomozoacean Ostracods ; Stage Boundary
资助项目National Natural Science Foundation of China[41602027] ; National Natural Science Foundation of China[41290260] ; National Natural Science Foundation of China[41472001] ; Southwest Petroleum University[201599010138] ; 111 Project[B08030] ; National Science and Technology Major Projects[2016ZX05004002-001]
WOS研究方向Physical Geography ; Geology ; Paleontology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号WOS:000446269900004
项目资助者National Natural Science Foundation of China ; Southwest Petroleum University ; 111 Project ; National Science and Technology Major Projects
出版者ELSEVIER SCIENCE BV
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/16852
专题中国科学院南京地质古生物研究所
通讯作者Gong, Yiming
作者单位1.Southwest Petr Univ, Key Lab Carbonate Reservoir CNPC, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China
2.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China
推荐引用方式
GB/T 7714
Huang, Cheng,Song, Junjun ,Shen, Jun,et al. The influence of the Late Devonian Kellwasser events on deep-water ecosystems: Evidence from palaeontological and geochemical records from South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,504:60-74.
APA Huang, Cheng,Song, Junjun ,Shen, Jun,&Gong, Yiming.(2018).The influence of the Late Devonian Kellwasser events on deep-water ecosystems: Evidence from palaeontological and geochemical records from South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,504,60-74.
MLA Huang, Cheng,et al."The influence of the Late Devonian Kellwasser events on deep-water ecosystems: Evidence from palaeontological and geochemical records from South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 504(2018):60-74.
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