HR: 1340h
AN: T23A-1219 [Abstracts]
TI: Heat flow distribution in Chinese continent and its adjacent areas
AU: * Tao, W
EM: taoweibeijing@gmail.com
AF: Institute of Geology, China Earthquake Administration, Institute of Geology, China
Earthquake Administration, Dewai Qijiahuozi, Beijing - China, Beijing, 100029, China
AU: Shen, Z
EM: zshen@ies.ac.cn
AF: Institute of Geology, China Earthquake Administration, Institute of Geology, China
Earthquake Administration, Dewai Qijiahuozi, Beijing - China, Beijing, 100029, China
AU: Shen, Z
EM: zshen@ies.ac.cn
AF: Department of Earth and Space Sciences£¬Univ. of California, Department of Earth and
Space Sciences£¬Univ. of California£¬Los Angeles, CA 90095-1567, Los Angeles, 900951, United States
AB:
Using a compilation of 6980 heat flow measurements, we produce a new heat flow map for the Chinese
continent and its adjacent areas. We develop an objective and integrated method to interpolate the heat flow data,
taking into account both the uniformity within geological units and coherency of regional heat flow. The geologic
units are outlined based on Zhang et al.'s (2003) active tectonic block model. Our heat flow model is presented in
two formats: a contour map and a heat flow dataset with values on a 1° × 1° grid in the Chinese
continent and its adjacent areas, reflecting detailed variations at some regions.
Also provided is a resolution map which helps understand the reliability of the heat flow model. Our results reveal
that: (a) Heat flows in the east part of the Chinese continent are relatively higher than those in the west part except
that in the Tibetan plateau area. (b) Heat flows in the Ordos and North China blocks are around 60 mW/m2, and
are 50 ~ 55 mW/m2 in South China except in the continental marginal sea regions. (c) Heat flow is the lowest
in the Junggar basin, only 35 ~ 45 mW/m2, and is45 ~ 55 mW/m2 in the Tarim basin. The results of this
study provide an important dataset for studies on thermal and rehological structures of the Chinese continent and
its adjacent areas.
DE: 5418 Heat flow
SC: Tectonophysics [T]
MN: 2007 Fall Meeting