滦平盆地上白垩统九佛堂组中的熔积岩及地质意义

永颉同心

摘　要：通过对滦平盆地沉积地层的野外观察,系统分析了九佛堂组的沉积特征及其变化规律,鉴别出特殊的岩石类型--熔积岩;较详细的描述了熔积岩所在剖面的沉积特征,最后结合盆地的区域地质背景,初步认为滦平盆地为火山-沉积盆地,强烈的同沉积构造运动伴随岩浆活动,致使盆地九佛堂组沉积地层内发育熔积岩.
关键词：熔积岩;滦平盆地;早白垩世;九佛堂组

作者单位：张英利（西安石油大学油气资源学院,西安,710065）　
　　　　　孟庆任（中国科学院地质与地球物理研究所,北京,100029）　
　　　　　渠洪杰（中国地质科学院地质力学研究所,北京,100081）　
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