Origin, Migration and Accumulation of CO2 and Its Resource Utilization in Marginal Basin, Northern South China Sea
Received date: 2009-04-12
Revised date: 2009-07-31
Online published: 2009-08-10
According to δ13CCO2and 3He/4He, CO2 could be classified into three types (or four sub types) including crustal origin (organic and inorganic), crust mantle origin and volcano mantle origin. Crustal and crust mantle CO2 is mostly distributed in different horizontal blocks and different vertical layers in the shallow part of mud diapirs in the Yinggehai basin, and it is controlled by the diapirs up-invasion and thick marine calcic sand shales. Volcano mantle CO2 has smaller scale in the study area and is distributed in the faulted zone Ⅱ east of the Qingdongnan basin and around the discordogenic fault zone in the Pear River Mouth basin, controlled by the effective system of mantle magma air discharge and migration. The CO2 resources are over one trillion cubic meters in north of the South China Sea. It is important how to explore and use the enormous resources and to promote the utilization. It needs to be paid attention to by the relative departments and experts.
HE Jia-Xiong, CHU Wei-Hai, CUI Sha-Sha, MA Wen-Hong- . Origin, Migration and Accumulation of CO2 and Its Resource Utilization in Marginal Basin, Northern South China Sea[J]. Natural Gas Geoscience, 2009 , 20(4) : 488 -496 . DOI: 10.11764/j.issn.1672-1926.2009.04.488
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