中国台湾浅滩海底沉积物中铁、锰、钛、磷元素的地球化学     

赵一阳  车承惠  杨惠兰  贾凤梅 《地质学报》1981,55(2)

台湾浅滩位于台湾海峡之南端,地跨东海与南海之间。由于渔场的调查,曾系统地进行了海底沉积物的采样。为了查明现代海洋大陆架沉积物中铁、锰、钛和磷等元素的若干地球化学问题,我们曾对台湾浅滩及其周围43个有代表性的样品进行了化学分析。所用方法均为通用的分光光度法,即磺基水杨酸法测定铁;高碘酸钾法测定锰;过氧化氢法测定钛;钒钼酸铵法测定磷。  相似文献   

BASIC GEOCHEMICAL CHARACTERISTICS OF SEDIMENTS IN THE OKINAWA TROUGH     

赵一阳  何丽娟  张秀莲  贾凤梅  夏青 《中国海洋湖沼学报》1986,(3)

A total of 21 elements, Si, Al, K, Na, Ca, Mg, Fe, Mn, Ti, P, Cu, Co, Ni, Zn, Pb, Cr, Rb, Sr Ba, Cd and Corg(organic carbon), was determined in the trough. Average contents of most elements were found to be higher in the trough bottom than in the western and eastern slopes. We call these elements the indicator elements because of their "transition" property. This is in keeping with the "intermediate" geographical position of the trough where the continental crust turns to oceanic crust.Though the authigenic fraction of some elements here increases, the detrital fraction .of most elements is still dominant, indicating that the influences of terrigenous and volcanic detrital materials on the trough sediments are still dominant.The abundant biogenous component in the trough is characterized by the increase of Ca, Sr and Corg contents. Ca existes mainly in the form of CaCo3 that is mostly found in various shells. Sr often easily replaces Ca within the shells.A belt-shaped distribution pattern of elements wa  相似文献   

冲绳海槽沉积物地球化学的基本特征   总被引：12，自引：5，他引：12  

赵一阳  何丽娟  张秀莲  李凤业  贾凤梅  夏青 《海洋与湖沼》1984,15(4):371-379

冲绳海槽是介于东海大陆架和西北太平洋之间的一个现代沉积凹地,其特殊的地理位置吸引着众多的中外学者争相研究。近年来我们曾对冲绳海槽进行了一系列的海洋地质调查研究工作,本文即为该海槽沉积物地球化学特征的初步总结(调查站位见图1)。  相似文献