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Thermal Regimes of Lithosphere and Geothermal Resources Potential in Fujian Province, China 1
Author(s) -
Tianfeng Wan,
Mingji Chu,
Mingyou Chen
Publication year - 1988
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1988.mp1004008.x
Subject(s) - geothermal gradient , radiogenic nuclide , geothermal energy , geology , lithosphere , hydrothermal circulation , magmatism , geochemistry , heat flow , geothermal heating , geothermal exploration , groundwater , earth science , petrology , thermal , geophysics , mantle (geology) , tectonics , seismology , geotechnical engineering , physics , meteorology
From the determinations of surface heat flow based on silica geothermometry, residual heat flow, radiogenic heat production of rocks, thermal conductivities of rocks and so on, the temperatures at different depths of the lithosphere in Fujian Province are estimated by using a one‐dimensional steady‐state model. According to these and the research on geological structures, the possibility of existence of various geothermal systems in Fujian is discussed. The authors consider that in Fujian, geothermal systems related to shallow magmatism do not exist and hot dry rock systems can not be exploited for the time being. However, intermediate‐ and low‐temperature hydrothermal systems are well developed. They are controlled by active faults and distributed widely in southeastern Fujian, but do not have an anomalous heat source. The groundwater circulates at great depths and has a temperature usually less than 150°C with less discharge but good quality. It can be used directly as a valuable geothermal water resource but not suitable to be developed as an energy source.