黄东海及朝鲜海峡涡旋泥质沉积的环境磁学比较研究

Based on studies of environmental magnetism on the post-glacial sedimentary sequence in the eddy muddy deposits on the southeastern Yellow Sea shelf, surfiical sediments of the eddy muddy area on northeastern East China Sea shelf, the sedimentary sequence during the last 6 ka on the offshore area of the Korea Strait, and the last glacial brown-yellow, fine-grained sediment in the northern South Yellow Sea, the project has analysed the magnetic mineral Diagenesis in the post-glacial muddy sediments from the southeastern South Yellow Sea and its response to marine environmental changes, revealed the provenance of the muddy deposits on the northeastern East China Sea shelf from the pointview of environmental magnetism, deciphered high-resolution early diagenetic processes of magnetic minerals in the continental shelf sediments deposited during the last 6 ka and impact of the diagenesis on sedimentary remanence magnetization, and presented magnetic evidence for non-ealian origion of the last-glacial brown-yellow, fine-grained sediments in the northern part of the South Yellow Sea.

对位于南黄海、东海及朝鲜海峡4个涡旋泥质沉积区的4个浅钻和多个柱状样的过去14ka的泥质沉积层进行环境磁学研究，结合海洋地质和第四纪地质学的研究成果，提取自末次冰消期以来黄东海及朝鲜海峡高分辨率的古环境演化信息、东亚夏季风和冬季风百年--千年级的盛衰变迁记录，建立过去14ka我国东部路架区地磁场相对强度变化的样本曲线。