Geology and development of geothermal field in Neogene Guantao Formation in northern Bohai Bay Basin: A case of the Caofeidian geothermal heating project in Tangshan, China
DONG Yuexia,HUANG Hongxiang,REN Lu,LI Hongda,DU Zhiqiang,E Junjie,WANG Qi,ZHANG Xiaoming
Fig. 3. Overlay map of geothermal gradient contours and geothermal anomalies in the Nanpu sag and its surrounding areas.