川西高原水热活动分布特征与成因分析
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- 论文作者：唐显春 ; 张健 ; 庞忠和
- 年：2016
- 作者机构：中国科学院大学;中国科学院地质与地球物理研究所;
- 会议召开时间：2016-10-15
- 会议录名称：2016中国地球科学联合学术年会论文集（三十九）——专题79：中国古生物学和地层学最新进展、专题80：地热理论与应用、专题81：应用地球物理学前沿
- 语种：中文
- 分类号：P314
- 学会代码：ZGDW
- 会议名称：2016中国地球科学联合学术年会
- 会议地点：中国北京
- 主办单位：中国地球物理学会、中国地震学会、全国岩石学与地球动力学研讨会组委会、中国地质学会构造地质学与地球动力学专业委员会、中国地质学会区域地质与成矿专业委员会
- 学会名称：中国地球物理学会
- 页数：3
- 文件大小：1149k
- 原文格式：D
- 会议级别：全国
摘要
川西高原甘孜-理塘-巴塘地区发现的200余处温泉,其中11处泉口温度超过当地沸点。温泉大多出露于断裂附近或河谷地区,呈条带状分布。对区内构造特征、岩体热物性、断裂活动性质、重力和磁异常以及地震资料解释、水文地球化学等资料进行了综合分析,得出以下初步认识:一是区内温泉分布具有东西分带的特点,受断裂控制,可分为巴塘、理塘、康定三个地热带;二是区内莫霍面深度平均约为58 km,居里面平均深度22 km,构造上隆区与温泉分布有较好对应关系;三是理塘中、下地壳S波速较低,15km之下发育高导层,可能与局部高温熔融区有关;四是认识到区内温泉形成热源主要与放射性成因热、下地壳熔体增热、活动断裂摩擦热有关,但在不同地热带其贡献比例与主要成因有所不同。川西高原地热带是喜马拉雅地热带的重要组成部分。
引文
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Zhang KJ.et.al.,2006.Eclogites from central Qiangtang,northern Tibet(China)and tectonic implications:Earth and Planetary Science Letters.245:722-729.
Hu SB.,He LJ.,and Wang JY.,2000.Heat flow in the continental area of China:a new data set.Earth and Planetary Science Letters,179(2):407-419.
Mair K.and Marone C.,1999.Friction of simulated fault gouge for a wide range of velocities and normal stresses.Journal of Geophysical Research.104:28899-28914.
Reid AJ.,Wilson CJL.,Liu S.,2005.Structural evidence for the Permo-Triassic tectonic evolution of the Yidun Arc,eastern Tibetan Plateau.Journal of Structural Geology.27:119-137.
Rybach,L.and Muffler,P.1981.Geothermal Systems:Principles and Case Histories.John Wiley and Sons,Hoboken.
Shen ZK.,Lu JN.,et.al.,2005.Contemporary crustal deformation around the southeast borderland of the Tibetan Plateau.Journal of Geophysical Research.110,B11409.doi:10.1029/2004JB003421,2005.
Tao W.,and Shen ZK.,2008.Heat flow distribution in Chinese continent and its adjacent area.Progress in Natural Science.18:843-849.
Yan B.,Lin AM.,2015.Systematic deflection and offset of the Yangtze River drainage system along the strike-slip GanziYushu-Xianshuihe Fault Zone,Tibetan Plateau.Journal of Geodynamics.87:13-25.
Zhang KJ,et.al.,2012,Late Mesozoic tectonic evolution and growth of the Tibetan plateau prior to the Indo-Asian collision:Earth-Science Reviews,114:236-249.
Zhang KJ.et.al.,2006.Eclogites from central Qiangtang,northern Tibet(China)and tectonic implications:Earth and Planetary Science Letters.245:722-729.