| 岩石圈下层塑性流动网带的剪切热效应 |
| |
| 引用本文： | 王绳祖.岩石圈下层塑性流动网带的剪切热效应[J].地震地质,2006,28(3):336-350. |
| |
| 作者姓名： | 王绳祖 |
| |
| 作者单位： | 中国地震局地质研究所,地震动力学国家重点实验室,北京,100029 |
| |
| 摘 要： | 基于“网状塑性流动”大陆动力学模型和中国大陆大地热流的分布特征,文中针对网带黏性剪切热效应的平衡态,通过热力学能量方程的求解,导出网带温度异常方程等关系式,并通过与网带热流正异常的拟合分析,确定了相关的参数值。研究表明,塑性流动网带黏性剪切热的产生为温度的正异常提供了热源,并通过热传导扩展网带的影响范围,形成相应的热异常网带。作为对中东亚塑性流动网络系统平均状况的估计,网带的热异常宽度与地震带所显示的网带视宽度一致,约为65km;剪切网带的宽度为44km,约为网带热异常宽度的23;网带中线处的温度正异常约为210K,剪切网带边界处的温度正异常约为67K,至热异常带边缘处降低为零,其起伏形态与网带大地热流正异常“凸峰”相一致。文中为岩石圈下层塑性流动网络的存在及其对大地热流正异常分布的控制提供了理论依据
|
| 关 键 词： | 大陆岩石圈 塑性流动网络 延性剪切网带 热异常网带 大地热流正异常 |
| 文章编号： | 0253-4967（2006）03-0336-15 |
| 收稿时间： | 2005-09-16 |
| 修稿时间： | 2006-04-28 |
SHEAR-HEATING EFFECT OF PLASTIC-FLOW BELTS IN THE LOWER LITHOSPHERE |
| |
| WANG Sheng-zu.SHEAR-HEATING EFFECT OF PLASTIC-FLOW BELTS IN THE LOWER LITHOSPHERE[J].Seismology and Geology,2006,28(3):336-350. |
| |
| Authors: | WANG Sheng-zu |
| |
| Affiliation: | State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China |
| |
| Abstract: | Based on the “Netlike plastic-flow” model for continental dynamics and the distribution of terrestrial heat flow in the China continent, the balanced state of viscous shear-heating effect of plastic-flow belts (PFBs) is analyzed in the paper, involving the establishment of the equations of PFB-induced temperature-anomalies by solving the energy equations of thermal dynamics and the determination of the relevant parameters by fitting the positive heat-flow-anomalies of PFBs. It is shown that the viscous shea |
| |
| Keywords: | continental lithosphere plastic-flow network ductile shear belt thermal-anomaly belt positive heat-flow anomaly |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
