Oxygen Isotope of Brachiopods from the Pennsylvanian Coral Reef Area in South Guizhou Province
详细信息
- 责任者：Yang Lili (School of Resources and Civil Engineering ; Northeastern University ; Shenyang 110004 ; China) ; Gong Enpu
- 刊名：Acta Sedimentologica Sinica
- 出版年：2011
- 卷期：29(3)
- 关键词：腕足动物门 ; Brachiopoda ; 古温度 ; paleotemperature ; 氧同位素 ; oxygen isotopes ; 宾夕法尼亚系 ; Pennsylvanian ; 贵州 ; Guizhou Province
- 页码：p.458-464
- 图表：4 illus., 1 table, 28 refs.
- 分类号：1103
- 出版序号：1101
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Phylloid algal reefs are dominant in Pennsylvanian all over the world and well exposed in South Guizhou, China. The authors use fossil brachiopod shells to attain part of environmental information with respect to the development of Pennsylvanian Fomitchevella coral reef in South Guizhou. Analyzed in-situ by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LAICPMS), Fe, Mn, Ni, Sr, Na, Zn, Cr and Cd distribute symmetrically in shell transects of the fossil brachiopods Striatifera striata and Enteletoides shuichengensis. Symmetry of the trace element distribution pattern derived from shell growth bands and is considered an intrinsic and original ontogenetic property of the brachiopod shell chemistry. Ni, Fe, Mn, Na and Sr distribution is symmetrical in the well-preserved shells of the Pennsylvanian brachiopods Striatifera striata and Enteletoides shuichengensis, indicating that the selected shell by the conventional methods has preserved its original seawater signal for nearly 2.9 Ma.
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