| 塔里木盆地北部井下下石炭统有孔虫及地层对比 |
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| 引用本文： | 李汉敏.塔里木盆地北部井下下石炭统有孔虫及地层对比[J].石油实验地质,1996,18(1):42-56. |
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| 作者姓名： | 李汉敏 |
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| 作者单位： | 地矿部西北石油地质局地质大队 乌鲁木齐830011 |
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| 摘 要： | 塔里木盆地北部井下下石炭统自上而下分为3个组:央拜希组、卡拉沙依组和巴楚组。前两个组产有丰富的和有孔虫化石。科化石有4属18种,为一个带-Eostaffella带。有孔虫共计25属近60种,分成两个化石组合,即:2.Endothyranopsis cassus-Archaediscus krestovnikovi;1.Endothyra inflata f.minima-Archaesphaera minima.其中各有1新种。带和有孔虫组合2时代为中晚维宪期一早纳缪尔期。有孔虫组合1时代为中杜内期。
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| 关 键 词： | 塔里木盆地 下石炭统 有孔虫 |
| 收稿时间： | 1994-12-28 |
LOWER CARBONIFEROUS FORAMINIFERA AND STRATIGRAPHIC CORRELATION IN DRILL,OF THE NORTHERN PART OF TARIM BASIN,XINJIANG |
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| Affiliation: | Geological Division, Northwest Bureau of Petroleum Geology |
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| Abstract: | The Lower Carboniferous in drills of the northern part of Tarim Basin can be divided into three forastions from top to bottom: Yangbaxi, Kalashayi an Bachu. Abunbant foraminiferal and fusulinid fossils occur in Yangbaxi and Kalashayi formation. Fusulinid fossit amounting up to 4 genera and 18species belongs' to Eostaffella zone. Foraminferal fossil containins up to 25 genera and near 60 species could be categorizedas two assemblages: 2. Endothyranopsis cassus——Archaediscus krestovnikovi; and 1. Endothyra inflataf minima——Archaesphaera minima. The geological age of both fusulinid zone and 2 foraminiferal assemblage is from middle-late Visena to early namuran, and that of 1 foraminiferal assemblage is middle Tournaisian. |
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