Silica Geothermometry Applications in the Taiwan Orogenic Belt

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题名:	Silica Geothermometry Applications in the Taiwan Orogenic Belt
作者:	Liu, Chia-Mei Song, Sheng-Rong Kuo, Ching-Huei
贡献者:	Dept Geol
关键词:	Taiwan Regional heat flow Arc-continent collision Silica geothermometry
日期:	2015-08
上传时间:	2015-10-20 15:27:39 (UTC+8)
摘要:	The silica concentrations from 130 hot spring measurements were calculated and used to indicate the heat flow distribution in the active Taiwan orgenic belt. The heat flow spatial distribution seems to be controlled by the Taiwan arc-continent collision zone tectonic development. Two abnormally high silica heat flow regions, 160 and 190 mW m(-2), are identified in northeastern and southeastern Taiwan, respectively. In northeastern Taiwan, the Chingshui area, the data suggests that the anomalous heat flow distribution may be controlled mainly by hot fluids and faults. The highest heat flow in southeastern Taiwan may be generated by heat advection caused by a rapidly uplifting hot crust with a decreasing mature arc-continent collision zone exhumation rate. In addition, we estimated the exhumation rate in different tectonic zones in Southern Taiwan by applying fission track ages and silica heat flow values. The exhumation rates are 1.33, 1.72 - 3.87, and 0.51 - 1.74 mm yr(-1) in the tectonic zones around Taiwan for advanced, initial arc-continent collision and accretionary wedge deformation, respectively.
關聯:	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES 卷: 26 期: 4 頁碼: 387-396
显示于类别:	[地質系] 期刊論文

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