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@ARTICLE{Zhao:15983,
author = {Zhao, W.J. and Wang, N.Z. and Zhu, M. and Mann, U. and
Herten, U. and Lücke, A.},
title = {{G}eochemical {S}tratigraphy and {M}icrovertebrate
{A}ssemblage {S}equences across the {S}ilurian/{D}evonian
{T}ransition in {S}outh {C}hina},
journal = {Acta Geologica Sinica - English Edition},
volume = {85},
reportid = {PreJuSER-15983},
pages = {340 - 353},
year = {2011},
note = {These research results are financially supported by the
Basic Research Projects of Science and Technology: Research
on standard sections and some GSSPs in China
(2006FY120300-6) and the Major State Basic Research Projects
(2006CB806400) of MST of China, the Creative Research
Project of CAS (KZCX2-YW-156), the National Natural Science
Foundation of China (40930208), and the Important National
Science and Technology Specific Projects (2008ZX05008-001).
The authors are grateful to Cao Xuanduo, Jia Liantao, Gai
Zhikun, Lu Jing and Qiao Tuo for the field work and to
Werner Laumer and Holger Wissel for stable isotope
analyses.},
abstract = {Carbon isotope (δ13Corg) analyses of non-marine clastic
rocks and neritic carbonates and black shales spanning the
Silurian/Devonian transition are compared from two richly
fossiliferous sequences in Qujing of East Yunnan and Zoige
of Sichuan, South China. The two sections, Xishancun and
Putonggou sections in South China, reveal positive δ13Corg
shifts happening in the Upper Pridoli and Lower Devonian and
reaching peak values as heavy as $–25.2\%‰$ (Xishancun)
and $–19.9\%‰$ (Putonggou) in the lowermost Lochkovian
following the first occurrence of the thelodont Parathelodus
and the conodont Icriodus woschmidti woschmidti (only in
Putonggou Section and together with Protathyris-Lanceomyonia
brachiopod fauna). These results replicate a globally known
positive shift in δ13Corg from the uppermost Silurian to
the lowermost Devonian. The δ13Corg variations across the
Silurian/Devonian Boundary (SDB) at the two sections in
South China exhibit a shift in carbon isotopic composition
similar to the detailed SDB curves from the borehole Klonk-1
drilled at top of the Klonk Global Standard
Stratotype-Section and Point (GSSP) in the Prague Basin,
Czech Republic. In addition, four microvertebrate
assemblages, including the Liaojiaoshan, Xishancun,
Yanglugou and Xiaputonggou assemblages, are recognized from
the Silurian/Devonian transition exposed in the Xishancun
and Putonggou sections, respectively. The results from both
carbon isotope stratigraphy and microvertebrate assemblage
sequences suggest that the SDB in South China is located at
the base of the Xishancun Formation (between sample QX-20
and sample QX-21) in the Xishancun Section and the lower
part of the Xiaputonggou Formation (between sample ZP-09 and
sample ZP-10) in the Putonggou Section. The isotopic trend
for organic carbon together with the changes of
microvertebrate remains across the SDB can offer an approach
to a potential correlation of the SDB from different
sedimentary facies, which help to correlate the marine with
non-marine deposits.},
cin = {IBG-3},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Geosciences, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000289845800008},
doi = {10.1111/j.1755-6724.2011.00403.x},
url = {https://juser.fz-juelich.de/record/15983},
}