A approach on the effect of manganese nodule resources associated with plate tectonics in the eastern part of the Pacific

In the western part of the Clarion-Clipperton Fracture Zone in the Pacific, a series of geological and geophysical work has been carried out in the past years.The photograph of the deep-tow television camera has finished and the coverage of the manganese nodules is estimated.The nodule s abundance is obtained by means of the traditional geological sampling.The detailed Seabeam investigation and the seismic reflection are also measured.According to these important data and adopting the principle of the plate tectonics and the sedimentary dynamics, the effect of manganese nodule resources associated with the tectonics has been approached and the significant phenomena have been revealed.(1) The East Pacific Rise, the Clarion transform fault and the Clipperton transform fault, Line Mountains act as the key that has riched about amount of 200×10⁸t manganese nodule resources.(2) The sea floor of the research area has undergone in the process of the spreading based on the high resolution bathymetric data, the process is very important to the nodule distribution and its miner alization, as well as the material source of forming the nodule.(3) The variations of abundance and coverage of the nodules are coincided with the feature of the sea bottom.The change distance of the pronounced phase is about 15 km.Since the base has formed, it has affected manganese nodules.(4) The geological processes in the earth such as the activities of the magma chamber should be factor that has been controlling the for mation and the growth of the manganese nodules in the area.