Formation Mechanism and Exhumation Processes for HP-UHP Metamorphic Rocks in Dabie Mountains  

作　　者：Hou Mingjin Tectonique et Bassins Sédimentaires Laboratoire, Université de Paris-Sud 91405, ORSAY Cedex, France School of Resources and Environment, Hefei University of Technology, Hefei 230009, China Anhui Geological Survey, Hefei 230001, China Tang Jiafu Anhui Geological Survey, Hefei 230001, China 

出　　处：《Journal of China University of Geosciences》2004年第2期193-205,共13页中国地质大学学报（英文版）

基　　金：ThispaperissupportedbytheMajorScienceandTechnologyDevelopmentProgram(No.2002201)oftheMinistryofLandandResources,theNationalNaturalScienceFoundationofChina (No.4072070)andSpecialFoundationProjectofExplorationofAnhuiBureauofLandandResources (No.2 0 0 3 2 9

摘　　要：The high, ultrahigh pressure metamorphic rocks, widely distributed in Dabie Mountains, were described in terms of the geological setting, the marks of the petrology and the mineralogy of the ultrahigh pressure (UHP) metamorphic rocks. According to the estimated uplifting and denudation of the Dabie Mountains, and to the thermodynamics theory, were assessed the depth and pressure (high pressure autoclave) of the formation setting of the UHP metamorphic rocks. Based on all the information mentioned above, a new explanation is derived from the mechanism of formation and the processes of exhumation of the UHP metamorphic rocks.The high, ultrahigh pressure metamorphic rocks, widely distributed in Dabie Mountains, were described in terms of the geological setting, the marks of the petrology and the mineralogy of the ultrahigh pressure (UHP) metamorphic rocks. According to the estimated uplifting and denudation of the Dabie Mountains, and to the thermodynamics theory, were assessed the depth and pressure (high pressure autoclave) of the formation setting of the UHP metamorphic rocks. Based on all the information mentioned above, a new explanation is derived from the mechanism of formation and the processes of exhumation of the UHP metamorphic rocks.

关 键 词：blueschist belt coesite-bearing eclogite belt abnormal crustal pressure high pressure autoclave 

分 类 号：P584[天文地球—岩石学]