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巴彦浩特盆地东部古生代沉积的发现及其大地构造意义
石油与天然气地质
1992年 13卷 第No.4期
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Title
DISCOVERY OF PALEOZOIC SEDIMENTS IN EAST BAYANHOT BASIN AND ITS TECTONIC SIGNIFICANCE
Authors
Yuan Xiaoqi
Geng Guocang
摘要
地球物理和钻井资料证实,巴彦浩特盆地东部保存有较完整的古生代沉积。其中奥陶纪特马道克-阿伦尼格期,为稳定的华北地台型沉积,兰维思-兰代洛期属贺兰坳拉槽沉积体系;石炭纪杜内-维宪期,为相对稳定的海侵沉积,纳缪尔-维斯发期是贺兰坳拉槽再度复活形成贺兰碰撞谷的沉积。
Abstract
Geophysical and drilling data-proved that Upper Paleozoic sediments of several thou-sand meters thick are preserved in east part of Bayanhot Basin,of which the Ordovician Tremadocian-Arenigian and Llanvirnian-Llandeilian are respectively typical platform de-posits and Helan aulacoge deposits;Carboniferous Tournaisian-Visean and Namurian-Westfalian are respectively steady transgressional deposits and Helan collisional valley de-posits.The discovery shows that the study region had not uplifted all the time.
关键词：
阿拉善地块;
巴彦浩特盆地;
奥陶系;
石炭系;
坳拉槽;
碰撞谷;
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