湖南麻阳盆地深部结构的地球物理研究

根据麻阳盆地的地质背景和密度分布特征,分析了该地区布格重力异常特征;结合以往地震资料的研究成果,从重力层面着重研究了麻阳重力高异常形成的机制,即结晶基底隆起与莫霍面抬升,并对麻阳重力高异常进行了半定量反演推断解释.根据有关文献资料,概要总结了麻阳盆地构造演化的特征,初步探讨了麻阳盆地及其深部构造的控矿意义,提出了麻阳盆地寻找油气藏的新思路.

Geophysical study of deep structure in Mayang basin,Hunan Provicne

This paper briefly describes the geological background of the Mayang basin in Hunan Province. The density characteristics and Bouguer gravity anomaly characteristics of the Mayang basin were analyzed. In combination with previous research results of seismic data and from the two aspects of gravity and seismic level, the authors emphatically studied the formation mechanism of Mayang gravity high, crystalline basement uplift and Moho uplift. The authors carried out the semi-quantitative inversion of inference and interpretation for Mayang high gravity anomaly. According to the relevant literature, the tectonic evolution characteristics of Mayang basin were ana-lyzed, and the discovery of the deep structure and its ore-controlling significance in Mayang basin were pointed out. In addition, a new idea in search for oil and gas reservoirs in Mayang basin is put forward.