期刊论文

Lattice preferred orientation of olivines and seismic anisotropy in the upper mantle

中文

地球物理学报

Chinese Journal of Geophysics

1003-6504

1994

37

4

469-477

国家自然科学基金

本校为其他机构

从碱法造纸黑液中提取出的木素,在一定条件下,以硫酸铈铵为引发剂,与丙烯酰胺反应制取木素改性产物.用红外光谱对其结构进行表征,并研究了其对重金属离子的吸附性能.结果表明:在25℃下,改性产物对重金属离子Cu~(2+)、Cr~(6+)、Ni~(2+)的吸附容量分别达到了53.9mg/g、47.2mg/g和25.9mg/g,并且对Cu~(2+)、Cr~(6+)、Ni~(2+)的吸附在2.5h内即可达到饱和.

Olivine-petrofabric data in combination with crystalelastic constants have beenused to calculate velocity anisotropy from mantle-derived xenoliths(1herzolite) inMingxi, Fujian province.It is suggested that seismic anisotropy originates from lattice preferred orientation(LPO) of olivine induced by plastic flow of highly anisotropic olivines. The Patterns of olivine fabric and distribution of Vp, VSV, VSH and△VS with respect to the tectonic setting implies the direction of mantle-matter flowfrom NWW to SEE, which is coincided with the orientation of a-[100] axies(maxim...