| 湖北峡东地区灯影组石板滩段微化石 |
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| 引用本文： | 尹崇玉,高林志.湖北峡东地区灯影组石板滩段微化石[J].地质论评,1995,41(3):197-204. |
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| 作者姓名： | 尹崇玉 高林志 |
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| 作者单位： | 中国地质科学院地质研究所 北京
(尹崇玉)，中国地质科学院地质研究所 北京(高林志) |
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| 基金项目： | 国家自然科学基金，地质行业科学技术发展基金 (编号49172071) |
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| 摘 要： | 本文研究了发现于湖北峡东地区，震旦系灯影组石板滩段燧石夹层岩石薄片中的微古植物化石，包括１０属５种（其中１新属新种）和５个未定种，石板滩段黑色薄层灰岩以富含宏观藻类及碳质印膜和少量后生动物而闻名，我们在燧石夹层牟岩石薄片中，不仅发现上述宏观藻类，而且首次发现共生的微化石。及其他保存很好的微化石，这一发现进一步丰富 我国震旦纪的古生物资料，为地层对比提供了依据。
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| 关 键 词： | 灯影组 石板滩段 晚震旦世 微化石 藻类 地层 |
MICROFOSSILS FROM THE SHIBANTAN MEMBER OF THE DENGYING FORMATION IN THE YANGTZE GORGES, WESTERN HUBEI |
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| Yin Chongyu and Gao Linzhi.MICROFOSSILS FROM THE SHIBANTAN MEMBER OF THE DENGYING FORMATION IN THE YANGTZE GORGES, WESTERN HUBEI[J].Geological Review,1995,41(3):197-204. |
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| Authors: | Yin Chongyu and Gao Linzhi |
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| Abstract: | The microfossils described and illustrated in this paper were discovered in black cherts of the Shibantan Member of the upper Sinian Dengying Formation in the Yangtze Gorges, western Hubei. All of the microfossils were observed in petrographic thin-sections, including 10 genera, 5 species and 5 undeterminate species (including a new genus). The Shibantan Member, which consists of black, thin-bedded limestone, is famous for containing abundant megascopic algal fossils Vendotaenia and Tyrasotaenia, and the infrequent metazoan fossil Parachania. The cherts in-terbedded in thin-bedded limestone contain not only fragments of the two megascopic algal morphs but also some microfossils dominated by ? Leiothrichoides sp. and Primoflagella speciosa Gnilovskaya. Priinoflagella speciosa was originally discovered in the Kotlin Formation (Valdai series, Vendian System) on the East European Platform and it is first found in China. The discovery of the assemblage provides important evidence for the stratigraphical correlation and further enriches the Sinian paleontologic data in China. |
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| Keywords: | Dengying Formation Shibantan Member Late Sinian microfossil megascopic alga |
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