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引用本文:颜铁增1 覃兆松2 王德恩3 汪建国1 许兴苗1 蔡子华1. 浙江省老虎洞组和黄龙组地层划分与对比[J]. 中国地质, 2004, 31(3): 278-283.
YAN Tie-zeng1, QIN Zhao-song2, WANG De-en3, WANG Jian-guo1, XU Xing-miao1, CAI Zi-hua1. Stratigraphic division and correlation of the Laohudong Formation and Huanglong Formation in Zhejiang[J]. Geology in China, 2004, 31(3): 278-283(in Chinese with English abstract).
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浙江省老虎洞组和黄龙组地层划分与对比
颜铁增1 覃兆松2 王德恩3 汪建国1 许兴苗1 蔡子华11,2,3
1.浙江省地质调查院,浙江 杭州 311203;2.江西省地质调查院,江西 南昌 330201;3.安徽省地质矿产局332地质队,安徽 黄山 245000
摘要:
提要:浙江省老虎洞组、黄龙组生物地层的研究较薄弱,尤其是 化石带的建立不够系统,使地层的正确划分和对比存在一些问题。笔者通过精测浙江省桐庐县杨家老虎洞组、黄龙组地层剖面,系统采集了 化石样品,经 薄片研究,自下而上新建2个 化石带:Profusulinella simplex 带和Fusulinella bocki-Fusulina mayiensis带(二带化石归属达拉阶)。并与浙江长兴、杭州、常山地区的老虎洞组、黄龙组剖面进行了生物地层和岩石地层的划分对比。对比结果表明:Profusulinella simplex 带上延至黄龙组中—下部。
关键词:  化石带  老虎洞组  黄龙组  达拉阶  浙江
DOI:
分类号:
基金项目:中国地质调查局地质大调查项目(200113000032)资助。
Stratigraphic division and correlation of the Laohudong Formation and Huanglong Formation in Zhejiang
YAN Tie-zeng1, QIN Zhao-song2, WANG De-en3, WANG Jian-guo1, XU Xing-miao1, CAI Zi-hua11,2,3
1. Zhejiang Institute of Geological Survey, Hangzhou 311203, Zhejiang, China;2. Jiangxi Institute of Geological Survey, Nanchang 330201, Jiangxi, China;3. No. 332 Geological Survey Party, Anhui Bureau of Geology and Mineral Exploration and Development, Huangshan, 245000, Anhui, China
Abstract:
Abstract:The biostratigraphy of the Huanglong and Laohudong formations in Zhejiang is less studied, and especially the fusulinid zone is not systematic. So there are some problems about the correct stratigraphic division and correlation. The authors intensively measured the stratigraphic section of the Laohudong Formation and Huanglong Formation in Tonglu, Zhejiang Province, and gathered samples of fusulinids from the section, and by thin section study the authors established two fusulinid zones; they are in ascending order: the Profusulinella simplex zone and Fusulinella bocki-Fusulina mayiensis zone (both belong to the Dalaan Stage). Moreover, the biostratigraphic and lithostratigraphic correlation has been made between this section and the section of the two formations in Changxing, Hangzhou and Changshan in Zhejiang. The correlation results indicate that the Profusulinella simplex zone may extend upward to the middle and lower parts of the Huanglong Formation.
Key words:  fusulinid zone  Laohudong Formation  Huanglong Formation  Dalaan Stage  Zhejiang