| 云南拖顶泥盆纪岩相古地理及层序地层分析 |
| |
| 引用本文： | 牟传龙,王立全,沈苏.云南拖顶泥盆纪岩相古地理及层序地层分析[J].沉积与特提斯地质,1999,19(4):1-13. |
| |
| 作者姓名： | 牟传龙 王立全 沈苏 |
| |
| 作者单位： | 成都地质矿产研究所,四川,成都,610082 |
| |
| 基金项目： | 国土资源部地调局资助项目，云南省地质矿产局资助项目，第三地质大队资助项目 |
| |
| 摘 要： | 云南拖顶一带的泥盆纪地层，由于受构造的影响呈断块产出。通过对矿区泥盆纪地层的详细研究，认为其地层层序较为清楚，可以分出下泥盆统碎碎岩、中泥盆统碳酸盐岩和上泥盆统碎屑岩－碳酸盐岩。在斩野外实地考察和室内研究的基础上，本文详细厘定子泥盆纪的沉积相，并恢复了岩相古地理格局。进而建立了该区的层序地层格架，分为５个沉积层序，并对沉积体系与拖顶铜矿的关系进行了探讨。
|
| 关 键 词： | 泥盆纪 岩相古地理 层序地层 铜矿床 云南 |
| 收稿时间： | 1999/5/6 0:00:00 |
Devonian sedimenatry facies and palaeogeography and sequence stratigraphy of the Tuoding copper mining district, Yunnan |
| |
| MOU Chuan-long,WANG Li-quan,SHEN Su.Devonian sedimenatry facies and palaeogeography and sequence stratigraphy of the Tuoding copper mining district, Yunnan[J].Sedimentary Geology and Tethyan Geology,1999,19(4):1-13. |
| |
| Authors: | MOU Chuan-long WANG Li-quan SHEN Su |
| |
| Institution: | Chengdu Institute of Geology and Mineral Resouwes, Chengdu 610082, China |
| |
| Abstract: | The Devonian strata in the Tuoding region, Yunnan are widespread as fault blocks along the Jinsha River, especially on the eastern bank of the river. These strata may be composed of the Lower Devonian clastic rocks, Middle Devonian carbonate rocks and Upper Devonian clastic carbonate rocks, and fall, according to sedimentary structures and lithology, into six distinct sedimentary facies: littoral , shallow sea and shelf, restricted platform, lagoon, biohermal and tidal flat facies. There are gradations of the sediment configuration in the study area from the clastic shelf in the early stage to the carbonate platform sediments in the middle and finally to the mixed clastic carbonate shelf in the late stage, indicating that the carbonate platform in this area was developed on a early clastic ramp. Five sedimentary sequences have been distinguished for the Devonian strata in the study area. The results of research in this paper have revealed that the copper mineralization occur in the highstand systems tract including the platform bank laminated dolostone, dolarenite, pelleted dolostone and oncolite oolitic dolostone. |
| |
| Keywords: | Devonian sedimentary facies and palaeogeography sequence stratigraphy Tuoding copper deposit |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《沉积与特提斯地质》浏览原始摘要信息 |
| 点击此处可从《沉积与特提斯地质》下载免费的PDF全文 |
|
