Mineralogy of Surface Sediment in the Eastern Area off the Ryukyu Islands and Its Geological Significance
详细信息
- 责任者：Fang Xisheng (Key Lab. of Marine Sedimentology and Environmental Geology ; First Institute of Oceanography ; State Oceanic Administration ; Qingdao 266061 ; China) ; Shi Xuefa
- 刊名：Marine Geology & Quaternary Geology
- 出版年：2013
- 卷期：33(3)
- 关键词：海洋沉积物 ; marine sediments ; 琉球群岛 ; Ryukyu Islands
- 页码：p.57-63
- 图表：illus., 3 tables, 24 refs.
- 分类号：0200
- issnNo：ISSN0256-1492
- isbnNo：CN37-1117/P
摘要
The mineral composition of the bulk samples of the surface sediment in the eastern area off the Ryukyu Islands is studied with X-ray diffraction(XRD).It is found that the sediment consisting of smectite,illite+mica,kaolinite+chlorite,quartz,potash feldspar,plagioclase and calcite,is dominated by quartz,illite+mica,calcite and plagioclase,and kaolinite+chlorite and smectite occupy the second place with potash feldspar occasionally observed.According to the mineral composition,it is deduced that the sediment came from terrigenous,volcanic and biogenic sources.