Silica Geothermometry Applications in the Taiwan Orogenic Belt

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Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/30572

Title:	Silica Geothermometry Applications in the Taiwan Orogenic Belt
Authors:	Liu, Chia-Mei Song, Sheng-Rong Kuo, Ching-Huei
Contributors:	Dept Geol
Keywords:	Taiwan Regional heat flow Arc-continent collision Silica geothermometry
Date:	2015-08
Issue Date:	2015-10-20 15:27:39 (UTC+8)
Abstract:	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.
Relation:	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES 卷: 26 期: 4 頁碼: 387-396
Appears in Collections:	[Department of Geology] journal articles

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