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面理弯切轴测量技术在造山带研究中的应用——以美国阿肯色河地区为例
引用本文:曹汇,Chris FLETCHER.面理弯切轴测量技术在造山带研究中的应用——以美国阿肯色河地区为例[J].岩石学报,2012,28(6):1937-1948.
作者姓名:曹汇  Chris FLETCHER
作者单位:1. 大陆构造与动力学国家重点实验室,中国地质科学院地质研究所,北京100037;澳大利亚詹姆斯库克大学地球科学学院,汤斯维尔Qld 4811,澳大利亚
2. 澳大利亚詹姆斯库克大学地球科学学院,汤斯维尔Qld 4811,澳大利亚
基金项目:本文受公益性行业科研专项经费(201211093)和中国地质科学院地质研究所中央级公益性基本业务费专项基金(J1101)联合资助.
摘    要:基于变形分解理论提出的面理弯切轴测量技术,通过对变斑晶中多期面理的测定分析,为厘定造山运动中的变形过程提供了新的精确定量研究手段。面理弯切轴数据已经被用于解决地质领域多种问题,例如:研究造山运动过程中变形变质历史以及在区域和造山带尺度对比多期变质作用;论证变斑晶生长过程是否发生旋转;变斑晶成核生长与区域变形过程之间的关系;重建板块运动历史过程;约束不同地质事件的发生时限;划分复杂变形分解类型以及岩浆侵位机制及时限研究。本文主要介绍面理弯切轴测量方法的原理、具体测定方法、研究意义及应用范围,并以美国阿肯色地区为例,详细介绍了面理弯切轴测量技术在造山运动过程区域变形历史重建中的应用。

关 键 词:造山运动过程  面理弯切轴  变斑晶  变形分解作用
收稿时间:2012/3/20 0:00:00
修稿时间:5/1/2012 12:00:00 AM

Using foliation inflection/intersection axes investigates orogenesis: Take Arkansas River region, USA for example
CAO Hui and FLETCHER Chris.Using foliation inflection/intersection axes investigates orogenesis: Take Arkansas River region, USA for example[J].Acta Petrologica Sinica,2012,28(6):1937-1948.
Authors:CAO Hui and FLETCHER Chris
Institution:State Key Laboratory for Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;School of Earth and Environmental Sciences, James Cook University, Townsville, Qld 4811, Australia;School of Earth and Environmental Sciences, James Cook University, Townsville, Qld 4811, Australia
Abstract:The measurement of foliation inflection/intersection axes (FIA) preserved within porphyroblasts, have revealed much more extensive histories of deformation and metamorphism than previously recognized during the study of orogenesis. FIA data have been applied to solving many geological problems, such as investigating tectonometamorphic histories; correlating multiple phases of metamorphism on local and orogenic scales; studying porphyroblast nucleation and growth relative to deformation; reconstructing plate motions; constraining age dates; defining complex deformation partitioning patterns; and investigating pluton emplacement mechanisms and timing. This paper main focused on the significance of FIA data, the measurement of FIA and how it can be applied to solving geological problems. Take Arkansas River region, USA for example to interpret the application of FIA measurements in regional and detail study of deformation process during orogenesis.
Keywords:Orogenesis  Foliation inflection/intersection axes  Porphyroblasts  Deformation partitioning
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