兴城气田深层天然气勘探钻遇火山岩特征  

Characteristics of the encountered volcanic rocks in deep gas exploration in Xingcheng Gas Field

作　　者：宿大海[1] 王升永[1] 

机构地区：[1]大庆油田有限责任公司地质录井分公司,黑龙江大庆163411

出　　处：《大庆石油地质与开发》2005年第B08期11-12,共2页Petroleum Geology & Oilfield Development in Daqing

摘　　要：营城组沉积早期的火山活动形成了徐家围子断陷大面积分布的火山岩,兴城地区火山岩平面分布与深大断裂关系密切,在营城组沉积时期沿着该断裂发生了大规模的火山喷发,形成了长条形的火山岩建造,兴城地区火山岩划分出3个近北北西走向的火山岩带,中带呈长条形。营城组火山岩类型复杂,主要由酸性岩的流纹岩、过渡岩性和中性岩的安山岩以及基性岩的玄武岩等组成。Volcanic movement in the early period of sedimentation in Yingcheng Formation formed the volcanic rocks distributing in a large area in Xujiaweizi Rift. The areal distribution of the volcanic rocks in Xingcheng area is closely related to Shenda fracture. In the sedimentation period of Yingcheng Formation, a large scope of volcanic eruption took place along this fracture, forming a strip-shaped volcanic rocks construction. The volcanic rocks in Xingcheng area are divided into 3 NNW trend volcanic rock belts. The middle belt is strip-shaped. The volcanic rocks in Yingcheng Formation has complex types, mainly including rhyolite, andesite and basalt.

关 键 词：兴城地区 火山岩 构造 酸性岩 中性岩 基性岩 

分 类 号：TE122[石油与天然气工程—油气勘探]