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Ostracod Biostratigraphy of the Late Cretaceous Qingshankou Formation in the Songliao Basin
Author(s) -
Zhili ZHANG,
Zhenwen LIU,
Baichang WANG,
Ying ZHANG,
Dequan YE
Publication year - 2007
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2007.tb00998.x
Subject(s) - ostracod , geology , cretaceous , structural basin , biostratigraphy , paleontology , geochemistry
An ostracod biostratigraphic study was performed on 425 samples from the composite geological section constructed by using cores taken from five selected wells drilled in the Late Cretaceous Qingshankou Formation in the Songliao basin. A total of 19 ostracod zones are established in the formation, of which 3 are newly established and 3 are revised. The 19 ostracod zones are described in detail. This study provides a basis for the detailed stratigraphic division and correlation of the Qingshankou Formation and the Gaotaizi oil reservoir in the oilfield in the Songliao basin.