| 苏皖地区的孤峰组 |
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| 引用本文： | 王文耀.苏皖地区的孤峰组[J].地层学杂志,1988(1). |
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| 作者姓名： | 王文耀 |
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| 摘 要： | <正> 苏皖地区的孤峰组原称孤峰层,由“孤峰镇石灰岩”一名演变而来。叶良辅、李捷(1924)在安徽泾县孤峰镇进行煤田地质调查时,将相当于黄龙组、船山组及栖霞组的一套灰岩统称为“孤峰镇石灰岩”。孤峰层是朱森、李四光、李毓尧等(1930,1932,1935)重新厘订的,指出孤峰层“为黑色灰质页岩及硅质甚富之灰岩等,间于栖霞灰岩与龙潭煤系之
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Gufeng Formation in Jiangsu and Anhui |
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| Abstract: | The strata called "Gufeng Beds" were referred to as a distinct lithological unit half a century ago, so the Gufeng Formation should belong to a lithostratigraphic unit. As Paragastriccenas is distributed restrictively, it is difficult to deduce that the Gufeng Formation was deposited at the same time as the Lower Maokou Formation. The differences in the sedimentary rates and thickness have proved that the top boundary of Gufeng Formation is of different ages, namely, early Maokou and late Maokou age. It becomes younger from east to west. In the eastern part, the Gufeng Formation only represents the lower part of the Lower Maokou Formation; in the western part, the whole Lower Maokou Formation and a part of the Upper Maokou Formation. |
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