杭州湾附近海域三个海底柱状岩芯重矿物分布与组成  

Distribution and Composition of Heavy minerals of three cylindrical core in the Hangzhou Bay

作　　者：孟建国 金秉福[2] 苗丽华[3] 潘振[4] 

机构地区：[1]山东地震局泰安基准地震台,山东泰安271000 [2]鲁东大学地理与规划学院,山东烟台264025 [3]山东经济学院经济与城市管理学院,济南250000 [4]福建农林大学林学院,福州350002

出　　处：《华南地质与矿产》2009年第1期43-50,共8页Geology and Mineral Resources of South China

基　　金：国家自然科学基金项目(40076013);鲁东大学中青年科研基金项目(33211)

摘　　要：对东海沿岸陆架CJ08-630、CJ08-923、CJ08-1185三个柱状岩心56个重矿物样品63-125μm粒级重矿物的研究表明,重矿物种类有56种,最高含量可达53.1%;平均含量较低,为8.5%,;矿物组成以闪石类、帘石类、辉石类、片状矿物、自生黄铁矿及金属矿物磁铁矿、褐铁矿等等为主。重矿物来源复杂多样,包括陆源、自生等各种来源的矿物。其中沿岸河流输入物是主要陆源矿物来源;此外还有沿岸和岛屿等的剥蚀物、冲刷物。沉积环境是影响重矿物分布的主要因素。Studies on the 63 - 125 μ m particle heavy mineral from56 heavy mineral samples from three cylindrical cores, C J08 - 630, CJ08 - 923, C J08 - 1185 of the coast of the East China Sea continental shelf show： Heavy minerals, 56 types of species, the highest content of up to 53.1 percent; average levels of low, at 8.5%. To amphibole mineral composition category, curtain - type, stone - like, flaky mineral, pyrite and self - metallic mineral magnetite, limonite, and so on the main. Heavy mineral sources of complex and varied, including land - based sources, since a variety of sources, such as the Health and minerals. Those heavey minerals entered rivers along the coast are the main sources of land - based sources of minerals. There are also heavey minerals which came from the coast and islands of the erosion, erosion of. Sedimentary environment is the main factor which influenced the distribution of heavy minerals.

关 键 词：柱状岩心 重矿物 分布特征 物质来源 沉积环境 杭州湾 

分 类 号：P736.21[天文地球—海洋地质]