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| 豫西汝阳盆地九店组凝灰岩锆石SHRIMP U-Pb测年及其对含恐龙化石地层年代约束 | |
| 引用本文： | 江小均,柳永清,姬书安,张维,张兴辽,徐莉,贾松海,吕君昌,袁崇喜,李明.豫西汝阳盆地九店组凝灰岩锆石SHRIMP U-Pb测年及其对含恐龙化石地层年代约束[J].地质论评,2010,56(2):161-173. |
| 作者姓名： | 江小均 柳永清 姬书安 张维 张兴辽 徐莉 贾松海 吕君昌 袁崇喜 李明 |
| 作者单位： | 1. 中国地质科学院地质研究所,北京,100037 2. 中国地质科学院地质研究所,北京,100037;北京离子探针中心,北京,100037 3. 河南省地质博物馆,郑州,450000 |
| 基金项目： | 国家自然科学基金重点项目(编号90914003);;国家重点基础研究发展计划(编号2006CB70145);;河南省国土资源厅项目(编号2006-26414);;国家自然科学基金资助项目(编号40872017);;中国地质科学院地质研究所所长基金资助项目的成果 |
| 摘 要： | 豫西汝阳盆地蟒川组陆相地层发育大型恐龙等动物化石,含化石的蟒川组与上覆、下伏地层序列和时代存有争议。通过汝阳盆地陆相地层野外系统调查,厘定了含恐龙地层—沉积序列及时代归属。在汝阳盆地早白垩世九店组凝灰岩中获得锆石SHRIMP U-Pb年龄为133～130Ma,结合九店组—陈宅沟组—蟒川组地层序列、沉积特征和接触关系等,认为汝阳盆地恐龙动物群及其赋存地层时代为早白垩世晚期。 |
| 关 键 词： | 豫西 汝阳盆地 下白垩统 地层 锆石SHRIMP U-Pb测年 |
SHRIMP U-Pb Dating of Zircons form Tuffs of Lower Cretaceous Jiudian Formation in Ruyang Basin, Western Henan, and Constraint on Stratigraphic Sequences of Dinosaur Fossils-Bearing |
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| JIANG Xiaojun,LIU Yongqing,JI Shu'an,ZHANG Wei,ZHANG Xingliao,XU Li,JIA Songhai,L Junchang,YUAN Chongxi,LI Ming.SHRIMP U-Pb Dating of Zircons form Tuffs of Lower Cretaceous Jiudian Formation in Ruyang Basin, Western Henan, and Constraint on Stratigraphic Sequences of Dinosaur Fossils-Bearing[J].Geological Review,2010,56(2):161-173. | |
| Authors: | JIANG Xiaojun LIU Yongqing JI Shu'an ZHANG Wei ZHANG Xingliao XU Li JIA Songhai L Junchang YUAN Chongxi LI Ming |
| Institution: | JIANG Xiaojun,LIU Yongqing,JI Shu'an,ZHANG Wei,ZHANG Xingliao,XU Li,JIA Songhai,L(U) Junchang,YUAN Chongxi,LI Ming |
| Abstract: | Located within the Ruyang Basin in Western Henan,the dinosaur-bearing stratum,named the Mangchuan Formation,and its geochronology were poorly studied up to now. On the basis of geological survey,stratigraphic sequences and geochronology,the dinosaur-bearing deposits was discussed in this paper. Based on the SHRIMP U-Pb dating (130~133 Ma) of the zircons from tuffs in the Early Cretaceous Jiudian Formation underlying the dinosaur-bearing stratum,and in combination with stratigraphic succession,deposits and c... |
| Keywords: | western Henan Ruyang Basin Early Cretaceous stratigraphy zircon SHRIMP U-Pb dating |
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