南黄海YSDP102孔冰消期以来的重矿物组合特征  

FEATURES OF HEAVY MINERALS IN THE YSDP102 CORE ON THE SOUTHEAST CONTINENTAL SHELF OF THE SOUTH YELLOW SEA

作　　者：姜学钧[1] 李绍全[1] 申顺喜[2] 

机构地区：[1]国土资源部海洋地质研究所,青岛266071 [2]中国科学院海洋研究所,青岛266071

出　　处：《海洋地质与第四纪地质》2000年第2期27-31,共5页Marine Geology & Quaternary Geology

基　　金：中韩科技合作项目!第七项"黄海第四纪地质对比研究"

摘　　要：利用 1995年中韩合作项目在黄海东部海域获得的 YSDP10 2钻孔岩心 ,选取了 2 8个样品进行了矿物学的分析与测试 ,共发现矿物 2 4种 ,其中重矿物 2 0种 ,组合为绿泥石、云母、绿帘石、角闪石、石榴子石。结果显示重矿物组合及物质来源比较稳定 ,主要是冰消期以来海侵过程对陆架上早期沉积物的改造 ,其次是各种海洋动力对陆架基岩的侵蚀所形成的沉积物 ,在垂向上可以分成 3个矿物段 ,这There are 24 kinds of minerals in the core of YSDP102 consisting of 20 kinds of heavy minerals and 4 kinds of light minerals.The light mineral mainly includes quartz and feldspar.The heavy mineral group includes chlorite、biotite、zoisite、hornblende and garnet.The heavy mineral group revealed that the resource of the sediments was steady.It mainly consists of“relict sediments” reworked by the post glacial transgression but also those from basal rocks directly eroded by the post glacial transgression too.The core can be divided into three segments from upper to down(upper,middle and bottom segments)according to the distribution of heavy minerals in the vertical of the core and the segments related to the sedimentary environment.The environment in which the sediments formed was in low energy.

关 键 词：冰消期 重矿物组合 物质来源 沉积环境 南黄海 

分 类 号：P736.3[天文地球—海洋地质]