LOWER CARBONIFEROUS FORAMINIFERA AND STRATIGRAPHIC CORRELATION IN DRILL, OF THE NORTHERN PART OF TARIM BASIN, XINJIANG

Li Hanmin

doi:10.11781/sysydz199601042

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Li Hanmin. LOWER CARBONIFEROUS FORAMINIFERA AND STRATIGRAPHIC CORRELATION IN DRILL, OF THE NORTHERN PART OF TARIM BASIN, XINJIANG[J]. PETROLEUM GEOLOGY & EXPERIMENT, 1996, 18(1): 42-56. doi: 10.11781/sysydz199601042

Citation:

Li Hanmin. LOWER CARBONIFEROUS FORAMINIFERA AND STRATIGRAPHIC CORRELATION IN DRILL, OF THE NORTHERN PART OF TARIM BASIN, XINJIANG[J]. PETROLEUM GEOLOGY & EXPERIMENT, 1996, 18(1): 42-56. doi: 10.11781/sysydz199601042

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LOWER CARBONIFEROUS FORAMINIFERA AND STRATIGRAPHIC CORRELATION IN DRILL, OF THE NORTHERN PART OF TARIM BASIN, XINJIANG

doi: 10.11781/sysydz199601042

Li Hanmin

Geological Division, Northwest Bureau of Petroleum Geology

Received Date: 1994-12-28
Publish Date: 1996-01-25

Abstract

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.