Subsurface Density Change in North China from 2009 to 2013 and Its Implication on Crustal Movements
Abstract The gravity change rate (GCR), which is derived from repeated gravity data deducted the semi-annual and annual changes of the network of the north China, is used to inverse subsurfacial density change. The results show that the subsurfacial density change trends from negative (Shanxi region), to positive (north China plain), to negative (Bohai bay basin), from west to east. It reveals that the middle and lower crust are in the compressed state caused by the extension of the Shanxi rift and the Bohai bay basin and the upwelling of the lithospheric hot material.
Key words :
gravity change
trend fitting
gravity changerate
density change
inversion
north China
Cite this article:
HAN Meitao,XUAN Songbai,ZHANG Yongqi et al. Subsurface Density Change in North China from 2009 to 2013 and Its Implication on Crustal Movements[J]. jgg, 2017, 37(11): 1118-1120.
HAN Meitao,XUAN Songbai,ZHANG Yongqi et al. Subsurface Density Change in North China from 2009 to 2013 and Its Implication on Crustal Movements[J]. jgg, 2017, 37(11): 1118-1120.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2017/V37/I11/1118
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