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本文是中、韩国际合作项目“黄海地质地球物理场特征研究”的一部分 .具体研究了格列菲列岛的基础地质问题及地球物理场特征 .格列菲列岛是由三个小岛组成的位于黄海中部的一组群岛 ,位于朝鲜半岛布格重力异常正值区 ,莫霍面埋深在 2 9km左右 .三个岛屿主要由安山集块岩构成 .安山集块岩是由大小不同的火成岩碎块和熔岩混合而成 .火成岩的碎块成分主要为石英岩、片岩、片麻岩、玄武岩、安山岩和流纹岩 .主要节理方向为NE10°～NE2 0°,倾角近乎垂直 ;另一组节理为NW70°～NW80° ,倾角也近垂直 .本研究为我们了解这个地区的基础地质情况 ,岩石物性和随后进行的黄海海域典型剖面的地球物理物性反演工作以及地质模型的建立 ,打下重要基础 .
This article is part of the “Sino-Korea-Korea International Cooperation Project”, “Characteristics of the Yellow Sea Geological and Geophysical Field”, and specifically studied the basic geological problems and geophysical characteristics of the island of Gulliver’s Island, which is composed of three islets A group of archipelagos in the central part of the Yellow Sea is located in the positive area of the Bouguer gravity anomaly in the Korean peninsula with a depth of about 2 9 km. The three islands are mainly composed of An-shan-agglomerate rocks of different sizes Igneous rock fragments and lavas mixed.The main components of igneous rocks are quartzite, schist, gneiss, basalt, andesite and rhyolite.The main joint orientation is NE10 ° ~ NE20 °, with nearly vertical dip; The group is NW70 ° ~ NW80 ° and the dip angle is also nearly vertical. This study provides us with basic geological conditions, petrophysical properties and subsequent geophysical and physical inversion of typical sections in the Yellow Sea and the establishment of geological models in this area Important foundation.