论文部分内容阅读
西太平洋由于大规模火山活动存在,深层熔岩上涌,为结壳的形成提供了丰富的物质来源。根据磁测资料,对区内MF海山磁异常特征,采用似二度体磁力剖面异常特征计算公式,用正演拟合方法来反演地下地质体产状、形态大小、基底起伏和磁性体物性参数,从而得出磁源体特征。研究海山性质及邻域洋底的地质构造特征,特别是断裂构造及其分布、岩浆活动规律以及岩石物性等有关的海山结壳的地质构造背景及其演化,为探讨地质构造对结壳的生长的控制作用提供依据,并为评价富钴结壳资源提供基础资料。
Due to the existence of large-scale volcanic activities in the western Pacific, the deep lava rises upwards, providing a rich source of material for the formation of crusts. According to the magnetic data, the formula of anomalous magnetic resemblance of the MF seamount in the area is used to calculate the anomalous characteristic of the second-degree body magnetic section. The forward fitting method is used to retrieve the shape, size, basement undulation and magnetic property of the underground geological body Parameters, to derive the magnetic source features. This paper studies the seamount nature and the geological structure of the adjacent ocean floor, especially the tectonic setting and evolution of the seamounts related to the fault structure and its distribution, magmatism and petrophysics. In order to discuss the effect of geological structure on crustal growth Provide the basis for the control and provide the basic information for the evaluation of cobalt-rich crustal resources.