摘要
本文以从布格重力异常中分离出来的区域重力异常为主要研究对象，结合默中－黔东南地区的地质、物化探资料，提出了区内可能存在四条大断裂；首次揭示了“黔中地块”之下，有一个低密度体，可能是酸性侵入岩体；又据他人建立的地壳3层重力理论模型，拟合该区区域重力场的变化，进一步证实了这一地区地壳属大陆型地壳的范畴等。
In the paper it is suggested that there are probably four deeply fractured zones beneath the surface of central and southeastern Guishou based on the interpretation of regional gravity anomaly, in combination with geology and geophysical data available. Moreover, this area is inferred to cover a mass of low denSity resulting from intrusion of acid magma. The authors conclude that the terrain is characterized with the continental crust by the aPPlication of a model for three -- level gravity to simulahng the tendency in regional gravity field.
出处
《贵州地质》
1998年第3期229-233,共5页
Guizhou Geology
