%0 Journal Article
%T Carbon isotopic record from Upper Devonian carbonates at Dongcun in Guilin, southern China, supporting the world- wide pattern of carbon isotope excursions during Frasnian-Famennian transition
%A XU Bing
%A Gu Zhaoyan
%A LIU Qiang
%A Wang Chengyuan
%A LI Zhenliang
%A <br>XU Bing
%A GU Zhaoyan
%A LIU Qiang
%A WANG Chengyuan & LI Zhenliang . Institute of Geology and Geophysics
%A Chinese Academy of Sciences
%A Beijing
%A China
%A . Nanjing Institute of Geology and Palaeontology
%A Chinese Academy of Sciences
%A Nanjing
%A China
%A . Guangxi Institute of Regional Geology Survey
%A Guilin
%A China Correspondence should be addressed to Gu Zhaoyan
%J 科学通报(英文版)
%D 2003
%I 
%X Two positive d 13C excursions are presented in records from the Frasnian-Famennian (F-F) marine carbon-ate sediments in Europe, America, Africa, and Australia, having been considered as a worldwide pattern, and attrib-uted to enhanced organic carbon burial during the F-F biological mass extinction. However, this worldwide pattern has not been revealed from the well-deposited Late Devonian sequences in southern China. In this paper, a detailed inves-tigation has been made on the Late Devonian section at Dongcun, Guilin, southern China to constrain perturbations in d 13C of carbonates in the F-F deposited sequence. The result from this section also indicates two positive d 13C ex-cursions during the F-F transition. The first excursion with an amplitude of 1.5 occurred at the bottom of linguiformis Zone, later than the early excursion existing in the Late rhe-nana Zone of the Late Devonian profiles in other continents, especially, in central Europe. This difference has been ex-pected to be a result as conodont Palmatolepis linguiformis occurred earlier in southern China than other sites. The second excursion with an amplitude of 2.1 is located at the F-F boundary, same as the records from other continents. This result strongly supports the view that two carbon iso-tope positive excursions during the F-F transition are com-mon in carbonate sediments, resulting from worldwide in-creases of organic carbon burial intensity.
%K F-F event
%K d 13C
%K positive excursion
%K mass extinction<br>δ13C
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=9FA1CEED7AAD059AAA91FD0895E0D2C8&yid=D43C4A19B2EE3C0A&vid=B6DA1AC076E37400&iid=59906B3B2830C2C5&sid=BE411C407DAF4824&eid=8A87B19A95331EA5&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=38