木里地區(qū)小金河斷裂構造變形及演化
[Abstract]:The small Jin He fault is the southwest section of the Meso-Cenozoic nappe tectonic belt of Longmen Mountain, Jinping Mountain and Yulong Snow Mountain, which is an important boundary between Songpan Ganzi orogenic belt and Yangtze platform. The tectonic evolution and deformation characteristics of the small Jin He fault reflect the bidirectional orogenic polarity of the Songpan Ganzi orogenic belt, while the previous researches on the minor Jin He fault structure are mostly the seismogenic mechanism and the discussion of the activity since the Quaternary. The use of tectonic geology to study small structural styles and assemblages has been neglected. In this paper, through the field geological observation of several lines crossing small Jin He fault, the geometry and kinematics of the small Jin He fault and the small structure in the tectonic belt are studied by using the method of small structure analysis. The results are as follows: (1) the small Jin He fault in Muli area is mainly divided into two sections, the arc segment and the Miaoya section. (1) the northern branch fault of the arc section can be divided into Bowaxiang fault, Hongkecun fault, Hailaigou fault. (2) the main fault of the arc section of small Jin He fault distributes roughly along the direction of E-W and protrudes southward, and passes through Yazu Township and walnut bay. (3) the Mianyia section of small Jin He fault is mainly divided into two branches. Branch 1 showed NE-SW distribution, passed through cotton village, Changbai Township; Branch 2 is distributed in NE-SW direction, passing through Taozi Township. (2) the arc is mainly composed of cleavage zone, lenticular zone, small fault with normal fault or thrust, and local dextral motion. The main features of the Miaoya formation are cleavage zone, broken grain zone, debris zone and local left-lateral movement. (2) the tectonic evolution of the small Jin He fault is divided into six stages: (1) the first stage is the late Indosinian thrusting activity, and (2) the tectonic evolution of the small Jin He fault is divided into six stages. The maximum principal compressive stress direction is E-W; (2) the second stage is the early Yanshanian thrust, the maximum principal compressive stress direction is NW-SE; (3) the third stage is the Yanshanian normal fault activity, and the E-W tensile stress; (4) the fourth stage is the Yanshanian to Himalayan thrusts, and the direction of the maximum principal stress is NE-SW; (5) the fifth stage is an early Pleistocene faulting activity, which is an E-W extension. (6) the sixth phase is an inverse left-handed activity of NW-SE direction since the Middle Pleistocene.
【學位授予單位】:成都理工大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:P542
【參考文獻】
相關期刊論文 前10條
1 吳中海;龍長興;范桃園;周春景;馮卉;楊振宇;仝亞博;;青藏高原東南緣弧形旋扭活動構造體系及其動力學特征與機制[J];地質通報;2015年01期
2 駱佳驥;崔效鋒;胡幸平;朱敏杰;;川滇地區(qū)活動塊體劃分與現(xiàn)代構造應力場分區(qū)研究綜述[J];地震研究;2012年03期
3 鄧軍;王長明;李龔健;;三江特提斯疊加成礦作用樣式及過程[J];巖石學報;2012年05期
4 李海鷗;徐錫偉;姜枚;馬文濤;;青藏高原西部班公-怒江縫合帶下方地殼結構與地塊拼合模式[J];地震地質;2010年02期
5 潘桂棠;肖慶輝;陸松年;鄧晉福;馮益民;張克信;張智勇;王方國;邢光福;郝國杰;馮艷芳;;大地構造相的定義、劃分、特征及其鑒別標志[J];地質通報;2008年10期
6 劉順;劉樹根;宋春彥;李智武;鄧賓;郭賓;田小彬;郝曉琳;;龍門山中央斷裂運動學研究[J];成都理工大學學報(自然科學版);2008年04期
7 王閻昭;王恩寧;沈正康;王敏;甘衛(wèi)軍;喬學軍;孟國杰;李鐵明;陶瑋;楊永林;程佳;李鵬;;基于GPS資料約束反演川滇地區(qū)主要斷裂現(xiàn)今活動速率[J];中國科學(D輯:地球科學);2008年05期
8 王慶良;崔篤信;王文萍;張四新;劉錦文;史旗;;川西地區(qū)現(xiàn)今垂直地殼運動研究[J];中國科學(D輯:地球科學);2008年05期
9 李才;;青藏高原龍木錯—雙湖—瀾滄江板塊縫合帶研究二十年[J];地質論評;2008年01期
10 劉平江;刁桂苓;寧杰遠;;川滇地塊的震源機制解特征及其地球動力學解釋[J];地震學報;2007年05期
相關會議論文 前1條
1 鄒光富;毛英;;西南三江地區(qū)大地構造演化與成礦作用[A];亞洲大陸深部地質作用與淺部地質—成礦響應學術研討會論文摘要[C];2008年
相關博士學位論文 前3條
1 張修政;羌塘地區(qū)早古生代構造演化新認識[D];吉林大學;2014年
2 吳彥旺;龍木錯—雙湖—瀾滄江洋歷史記錄[D];吉林大學;2013年
3 劉戰(zhàn)慶;東昆侖南緣布青山構造混雜巖帶地質特征及區(qū)域構造研究[D];長安大學;2011年
相關碩士學位論文 前5條
1 李君;川滇地塊東邊界及鄰區(qū)震源機制解與應力場空間分布特征[D];中國地震局地震預測研究所;2016年
2 張清林;川西巴塘地區(qū)斷裂構造變形研究[D];成都理工大學;2016年
3 楊杰;東昆侖南緣布青山地區(qū)晚古生代洋殼型構造巖塊地質特征及其構造屬性研究[D];長安大學;2014年
4 郝曉琳;龍門山中段前山構造變形特征[D];成都理工大學;2010年
5 程佳;川西地區(qū)現(xiàn)今地殼運動的大地測量觀測研究[D];中國地震局地質研究所;2008年
,本文編號:2380125
本文鏈接:http://sikaile.net/kejilunwen/diqiudizhi/2380125.html