Palynology of Yanchang Formation of Middle and Late Triassic in Eastern Gansu Province and Its Paleoclimatic Significance
文献类型：期刊论文
| 作者 | Ji LM(吉利明) ; Meng FW(孟凡巍) |
| 刊名 | Journal of China University of Geosciences
 |
| 出版日期 | 2006 |
| 卷号 | 17期号:3页码:209-220 |
| 关键词 | Ordos basin eastern Gansu Province Yanchang Formation source rock sporopollen assemblage paleoclimate. |
| 中文摘要 | Xifeng (西峰) oilfield was recently found in the southwest of the Ordos basin. The oil source rocks are the Chang 7 Section of Yanchang (延长) Formation. In order to study the paleoclimate that controlled the formation of source rocks， a systemically palynological research on related beds in Yanchang Formation has been carried out. The core samples were analyzed with classical palynological techniques and the organic-walled sporomorphs from these samples were observed， identified and photographed under a light microscopy and a fluorescence microscopy. Abundant sporopollen were found in drilling cores from Chang 8 and Chang 7 sections， and two assemblages were distinguished: the Aratisporites- Punctatisporites assemblage and the Asseretospora-Walchiites assemblage. Their characteristics are similar to those of the assemblage of Tongchuan (铜川) Formation and the assemblage of Yanchang Formation in southeast Ordos basin， respectively. Their geological times are Ladinian of late Middle Triassic and Carnian of early La... |
| 公开日期 | 2012-10-07 |
| 源URL | [http://ir.lig.ac.cn/handle/132962/888]  |
| 专题 | 兰州油气资源研究中心_油气地球化学研究室_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ji LM,Meng FW. Palynology of Yanchang Formation of Middle and Late Triassic in Eastern Gansu Province and Its Paleoclimatic Significance[J]. Journal of China University of Geosciences,2006,17(3):209-220. |
| APA | 吉利明,&孟凡巍.(2006).Palynology of Yanchang Formation of Middle and Late Triassic in Eastern Gansu Province and Its Paleoclimatic Significance.Journal of China University of Geosciences,17(3),209-220. |
| MLA | 吉利明,et al."Palynology of Yanchang Formation of Middle and Late Triassic in Eastern Gansu Province and Its Paleoclimatic Significance".Journal of China University of Geosciences 17.3(2006):209-220. |
入库方式： OAI收割
来源：兰州油气资源研究中心
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