
第25卷第1期 2011年2月
现代地质 CEOSCIENCE
Vol. 25
No.I Feb 2011
四川炉霍道孚小区如年各岩组构造地层解析
徐刚,江元生,徐天德,魏永峰,文建华,孙宝伟
(1.四川省地质矿产助查开发局区城地质调查队,四川成都610213;2.四川省地质矿产勘查开发局405地质队,四川都江堰611830)在争议的如年各岩组进行了较为深人的解析,从物态、时态、相态、位态和变形、变质等多方面对其进行了调查和研究,认为如年各岩组在纵向上构造叠置,整体有序,局部无序;横向上各岩性层不能稳定延伸,构成大级别的构造透镜网络系统,显示如年各岩组经历了早期沉积混余和后期构造混杂双重效应才构成了目前这样一套典型的造山带非史
关键调:如年各岩组;构造;地层;四川炉霍一道孚小区
中图分类号:P542;P535
文献标志码:A
文章编号:10008527(2011)01003909
Structural and StratigraphicAnalysisof theRuniangeFormationin
Luhuo-Daofu Area,SichuanProvince
XU Gang', JIANG Yuan-sheng', XU Tian-de', WEI Yong-feng', WEN Jian-hua', SUN Bao-wei(1, Regional Geological Suney Team, Sichuan Buredu of Geological Exploration and Derelopment of Mineral Resourees, Chengdu,
Sichuan610213, Chind; 2. Geologic Propecting Party gf 405, Sichuan Bureau of Geological Exploration and
Deelopment of Mineral Resowres, Dujiangyan, Sichuan611830, China)
Abstract: The " Four-dimensional Cracking and Putting together Restoration Law of Tectonic Rock Sheet" is an important method in the orogenic zone geological mapping in recent years. Using this method, this article dis-cussed disputing problems on Runiange Formation in Luhuo-Daofu area, Sichuan Province. From the view of the physical state, tense, phase, position and distortion, and the deterioration, the investigation indicated that the Runiange Formation structure is superposed longitudinally, being ordered generally and disordered partially Laterally, various lothological layers do not extend stably, and constitute a large-scale structure lens network system, The geologic phenomena demonstrated that the Runiange Formation experienced the early deposition promiscuous action and the later structure promiscuous action; thus, the present typical orogenic zone non-Smith stratum body formed. This research not only enhances the Runiange Formation recognition degree, but also ex plains the primitive definition of the Runiange Formation.
Key words: Runiange Formation; structure; stratigraphy; Luhuo-Daofu area, Sichuan Province
0引言
“构造岩片四维裂拼复原法”是一种近年来在造
较为深入的解析,从物态、时态、相态、位态和变形、变质等多方面对其进行了调查和研究。
“如年各组”[7]由四川省区域地质调查队于
1984首次提出,属于巴颜喀拉地层区玛多马尔
山带地质填图中取得较大成就的方法1-6。本文运
康地层分区炉霍一道孚地层小区{8-1,对于此套
用此方法对长期以来存在争议的如年各岩组进行了
收稿日期:2010-09-22;改回日期:2010-12-05;责任编辑:威开静。
基金项目:中国地质调查局国土资源调查项日"四川1:25万炉霍县幅区城地质调查项目(1212010510304)。
作者简介:徐刚,男,工程师,1981年出生,区域地质调查专业,主要从事构造地质研究。Email:lovelenglong@163.com。 ①张宽患,李报江,徐例,等,1:250000炉雷县幅区城地质查报告。1984.