| 试论浙东不同盆地塘上组的层位及时代 |
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| 引用本文： | 卢成忠,顾明光,俞云文,梁河.试论浙东不同盆地塘上组的层位及时代[J].地层学杂志,2006,30(1):81-86. |
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| 作者姓名： | 卢成忠 顾明光 俞云文 梁河 |
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| 作者单位： | 浙江省地质调查院,浙江杭州,311203 |
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| 基金项目： | 中国地质调查局地质大调查项目(编号200013000124)资助 |
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| 摘 要： | 详细的地质调查和剖面研究,证实了浙东不同盆地原划分的塘上组并非都为同一层位。天台、丽水及缙云壶镇、舒洪盆地原划分的塘上组均整覆于馆头组沉积岩之上,其上为两头塘组整覆,层位大致与馆头组上部相当,为下白垩统。小雄盆地上部原称塘上组的一套火山岩,其岩石组合、地层层序、生物化石组合和同位素年龄等与浙东其他盆地原划分的塘上组均不相同,成岩时代在81.5—92.9Ma,产晚白垩世翼龙和鸟类化石,覆于永康群朝川组之上,其层位大致与永康群方岩组和天台群赤城山组相当,时代为晚白垩世。
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| 关 键 词： | 塘上组 白垩系 层位 地层时代 浙江 |
| 文章编号： | 0253-4959(2006)01-0081-06 |
| 收稿时间： | 10 8 2005 12:00AM |
| 修稿时间： | 11 11 2005 12:00AM |
AGE OF THE TANGSHANG FORMATION IN DIFFERENT BASINS OF EASTERN ZHEJIANG |
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| LU Cheng-zhong,GU Ming-guang,YU Yun-wen,LIANG He.AGE OF THE TANGSHANG FORMATION IN DIFFERENT BASINS OF EASTERN ZHEJIANG[J].Journal of Stratigraphy,2006,30(1):81-86. |
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| Authors: | LU Cheng-zhong GU Ming-guang YU Yun-wen LIANG He |
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| Institution: | Zhejiang Geological Investigation Institute, Hangzhou, 311203 |
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| Abstract: | An intensive geological survey and study on the lateral section prove that the the Tangshang Formation in different basins of eastern Zhejiang is not of the same horizon. In the last decade, geologists in and outside the province have obtained substantial data on geology, ancient life and the age of volcanic rock isotope, which demonstrate that the Tangshang Formation in the basins of Tiantai, Lishui,Huzhen and Shuhong of Jinyun is all consisted of the Early Cretaceous strata covering conformably the Guantou Formation,and underlying the Liangtoutang Formation. Its position is roughly equivalent to that of the upper Guantou Formation. As for the so-called Tangshang Formation,being a set of volcanic rocks above Xiaoxiong basin,its rock composition,stratigraphic sequence,fossil assemblages and age of isotope are all different from those of the Tangshang Formation in other basins of eastern Zhejiang. The rocks were formed during the period of 81.5-92. 9Ma,producing the Late Cretaceous pterosaur and bird fossils and covering the Chaochuan Formation of the Yongkang Group. Its horizon is approximately equivalent to that of the Fangyan Formation of the Yongkang Group and Chichengshan Formation of the Tiantai Group,and its age is late Late Cretaceous. |
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| Keywords: | Tangshang Formation Cretaceous stratigraphic division geologic age Zhejiang |
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