摘要
从对博格达山构造活动的研究中获得了一批较为系统的锆石和磷灰石裂变径迹分析结果,并对部分样品的T-t热历史进行了定量模拟。研究表明,磷灰石和锆石裂变径迹年龄具跨度较大,空间分布不均匀,记录了构造隆升活动的时间等特点。这些特点暗示的构造意义是:博格达山的初始隆升始于152.3~106.3M a,而且南、北缘具不均匀抬升的格局;博格达山北缘水磨沟断裂有距今113.1~106.3M a和42.6~28.8M a间2次向北逆冲的断层活动;博格达山北缘山前逆冲褶皱带为有利的有利的油气勘探地区。
A batch of systematical analytical results of zirconite and apatite fissions are obtained by studying the structural activities of Bogedashan and T-t thermal history of part of samples is simulated quantitatively. Study indicates that the age of fissions of zirconites and apatites has the characteristics of big span, uneven of spatial distribution, recording the time periods of the structural uplift activities. The implicated structural significance includes that in Bogedashan the initial uplift is originated from 152. 3-106. 3 Ma with uneven elevation both at south and north margines, its water erosive trenched fissures is 113. 1 - 106. 3Ma and secondary reversed fault activity is induced between 42. 6-28. 8Ma. its hillside reversed-fold belts are beneficial areas for hydrocarbon exploration.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2005年第S2期11-14,5,共5页
Journal of Oil and Gas Technology
