本文關(guān)鍵詞：準(zhǔn)噶爾盆地及鄰區(qū)石炭紀(jì)構(gòu)造格架與沉積充填演化　出處：《中國地質(zhì)大學(xué)(北京)》2016年博士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 準(zhǔn)噶爾盆地及鄰區(qū) 石炭系 年代地層格架 構(gòu)造地層層序 大地構(gòu)造背景 構(gòu)造格架 沉積充填演化 構(gòu)造-沉積演化

【摘要】：準(zhǔn)噶爾盆地及鄰區(qū)隸屬古亞洲洋構(gòu)造域,記錄了中亞增生造山帶的俯沖、增生、碰撞以及后期陸內(nèi)改造過程。石炭紀(jì)是古亞洲洋由俯沖到閉合的關(guān)鍵轉(zhuǎn)折期,該時(shí)期復(fù)雜的洋-陸演變過程造就了準(zhǔn)噶爾盆地石炭系的油氣成藏實(shí)例。然而,石炭紀(jì)原型盆地研究目前仍比較薄弱,抑制了對(duì)石炭系生儲(chǔ)條件和有利區(qū)帶的評(píng)價(jià)。因此,開展準(zhǔn)噶爾地區(qū)石炭紀(jì)構(gòu)造格架和充填演化的研究,不僅可以豐富對(duì)中亞增生造山帶的構(gòu)造演化的認(rèn)識(shí),同時(shí)也對(duì)推進(jìn)深層含火山巖盆地油氣勘探進(jìn)程具有重要的意義。本論文系統(tǒng)應(yīng)用構(gòu)造地質(zhì)學(xué)、地球物理學(xué)、同位素年代學(xué)和地球化學(xué)方法,綜合利用鉆井、野外露頭、地震和重磁等資料,對(duì)準(zhǔn)噶爾盆地及鄰區(qū)石炭系年代地層格架、地質(zhì)結(jié)構(gòu)、大地構(gòu)造環(huán)境、沉積充填序列進(jìn)行了系統(tǒng)的分析和研究。在此基礎(chǔ)上,揭示了準(zhǔn)噶爾盆地及鄰區(qū)石炭紀(jì)構(gòu)造格架以及多期構(gòu)造背景下的構(gòu)造-沉積環(huán)境演變特征。盆地鉆井火山巖年代學(xué)結(jié)果顯示準(zhǔn)噶爾地區(qū)石炭紀(jì)發(fā)育5期火山活動(dòng),包括早石炭世3期(359-347Ma,347-331Ma和331-324Ma),晚石炭世2期(323-307Ma和307-300Ma)。區(qū)域性不整合界面將石炭系劃分為上、下石炭統(tǒng)兩個(gè)構(gòu)造地層層序。下石炭統(tǒng)以擠壓構(gòu)造變形為主,發(fā)育大量的鈣堿性玄武巖、安山巖、英安巖和流紋巖。而上石炭統(tǒng)多受伸展斷裂控制,火山巖以中-基性火山巖為主,局部地區(qū)存在雙峰式火山巖組合。基于火山巖構(gòu)造環(huán)境分析結(jié)果及構(gòu)造變形研究,并結(jié)合準(zhǔn)噶爾盆地及鄰區(qū)石炭紀(jì)構(gòu)造帶的劃分方案,厘定了薩烏爾-福海-杜拉特、和什托洛蓋-烏倫古-野馬泉、達(dá)爾布特-陸梁-卡拉麥里、中拐-莫索灣-白家海-奇臺(tái)等4個(gè)石炭紀(jì)弧盆帶,并識(shí)別了弧前盆地、弧后盆地、弧內(nèi)斷陷盆地、前陸盆地、被動(dòng)邊緣盆地等多種類型盆地。在構(gòu)造格架建立的基礎(chǔ)上,通過對(duì)石炭紀(jì)盆地沉積充填序列的解剖,將準(zhǔn)噶爾盆地及鄰區(qū)石炭紀(jì)構(gòu)造-沉積環(huán)境演變過程劃分為3個(gè)階段,分別為早石炭世早-中期俯沖作用相關(guān)擠壓撓曲階段、早石炭世晚期-晚石炭世中期俯沖相關(guān)的伸展裂陷階段和晚石炭世晚期陸內(nèi)斷坳陷階段。研究結(jié)果不僅揭示準(zhǔn)噶爾盆地下伏年輕陸殼基底,而且表明準(zhǔn)噶爾盆地及鄰區(qū)乃至整個(gè)中亞增生造山帶是在多列南向增生的弧盆系統(tǒng)依次向北碰撞拼貼過程中形成的。
[Abstract]:The Junggar basin and its adjacent area belong to the Paleo-Asian oceanic tectonic domain, recording the subduction, accretion, collision and later intra-continental transformation of the Central Asian accretionary orogenic belt. Carboniferous is the key turning period of the paleo-Asian ocean from subduction to closure. The complicated ocean-land evolution in this period resulted in the hydrocarbon accumulation in Carboniferous in Junggar Basin. However, the study of Carboniferous prototype basin is still relatively weak. Therefore, the study of Carboniferous tectonic framework and filling evolution in Junggar area can not only enrich the understanding of the tectonic evolution of the Central Asia accretionary orogenic belt. At the same time, it is of great significance to promote the process of oil and gas exploration in deep volcanic basins. In this paper, structural geology, geophysics, isotopic chronology and geochemistry are systematically applied to the comprehensive use of drilling. Based on the data of outcrop, earthquake and gravity and magnetic field, the chronostratigraphic framework, geological structure, tectonic environment and sedimentary filling sequence of Carboniferous in Junggar Basin and adjacent area are systematically analyzed and studied. The evolution characteristics of tectonic-sedimentary environment in Carboniferous tectonic framework and multi-stage tectonic setting in Junggar Basin and adjacent area are revealed. The geochronological results of volcanic rocks in the basin indicate that the 5th stage volcanic activity developed in the Carboniferous period in Junggar area. . It includes early Carboniferous period 3 (359-347 Ma, 347-331Ma and 331-324 Ma). The late Carboniferous stage 2: 323-307 Ma and 307-300 Ma. The regional unconformity interface divides the Carboniferous into upper. The Lower Carboniferous is dominated by compressional structural deformation, and a large number of calc-alkaline basalt, andesite, andesite and rhyolite are developed, while the Upper Carboniferous is controlled by extensional faults. The volcanic rocks are mainly meso-basic volcanic rocks, and there are bimodal volcanic assemblages in local areas. Based on the results of structural environment analysis and structural deformation study of volcanic rocks. Combined with the division scheme of Carboniferous structural belts in Junggar Basin and adjacent areas, the authors have determined the Sawur-Fuhai-Durat, the Shitoroge-Ulungue-Mumaquan, and the Dalbut-Luliang-Kalamaili. There are four Carboniferous arc basin belts in Zhongguai Mosuowan-Baijiahai Qitai, and the forearc basin, back-arc basin, intraarc faulted basin and Foreland basin are identified. Based on the establishment of tectonic framework, the sedimentary filling sequence of Carboniferous basin is dissected. The evolution process of the Carboniferous tectonic-sedimentary environment in Junggar Basin and its adjacent area is divided into three stages, which are the early to mid-Carboniferous compression-related deflections. The extensional rift stage associated with subduction in late early Carboniferous to mid-late Carboniferous and intracontinental fault depression stage in late late late Carboniferous. The results not only reveal the underlying young continental crust in Junggar Basin. It also shows that the Junggar basin and its adjacent area and even the whole Central Asia accretive orogenic belt were formed in the process of collision and collage of the arc-basin system in the direction of multi-row southward accretion.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類號(hào)】：P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張建新;于勝堯;李云帥;喻星星;林宜慧;毛小紅;;原特提斯洋的俯沖、增生及閉合:阿爾金-祁連-柴北緣造山系早古生代增生/碰撞造山作用[J];巖石學(xué)報(bào);2015年12期

2 鄧晉福;馮艷芳;狄永軍;劉翠;肖慶輝;蘇尚國;趙國春;孟斐;馬帥;姚圖;;巖漿弧火成巖構(gòu)造組合與洋陸轉(zhuǎn)換[J];地質(zhì)論評(píng);2015年03期

3 唐勇;王剛;鄭孟林;陳磊;馮莉;孔玉華;衛(wèi)延召;賴世新;丁靖;鮑海娟;;新疆北部石炭紀(jì)盆地構(gòu)造演化與油氣成藏[J];地學(xué)前緣;2015年03期

4 王啟宇;牟傳龍;陳小煒;康建威;;準(zhǔn)噶爾盆地及周緣地區(qū)石炭系巖相古地理特征及油氣基本地質(zhì)條件[J];古地理學(xué)報(bào);2014年05期

5 張旗;;大陸花崗巖的地球動(dòng)力學(xué)意義[J];巖石礦物學(xué)雜志;2014年04期

6 徐學(xué)義;李榮社;陳雋璐;馬中平;李智佩;王洪亮;白建科;唐卓;;新疆北部古生代構(gòu)造演化的幾點(diǎn)認(rèn)識(shí)[J];巖石學(xué)報(bào);2014年06期

7 董樹文;李廷棟;陳宣華;高銳;呂慶田;石耀霖;黃大年;楊經(jīng)綏;王學(xué)求;魏文博;陳群策;;深部探測揭示中國地殼結(jié)構(gòu)、深部過程與成礦作用背景[J];地學(xué)前緣;2014年03期

8 王緒龍;唐勇;陳中紅;查明;黃蕓;董雪梅;;新疆北部石炭紀(jì)巖相古地理[J];沉積學(xué)報(bào);2013年04期

9 許志琴;楊經(jīng)綏;李文昌;李化啟;蔡志慧;閆臻;馬昌前;;青藏高原中的古特提斯體制與增生造山作用[J];巖石學(xué)報(bào);2013年06期

10 匡立春;張?jiān)竭w;查明;陳中紅;李林;孔玉華;張勇;;新疆北部石炭紀(jì)構(gòu)造背景及演化[J];地質(zhì)學(xué)報(bào);2013年03期

相關(guān)博士學(xué)位論文 前2條

1 盧苗安;天山東段盆山構(gòu)造格局的多期演變[D];中國地震局地質(zhì)研究所;2007年

2 馬中平;天山及其鄰區(qū)蛇綠巖研究與古生代洋盆演化[D];西北大學(xué);2007年

，

本文編號(hào)：1406209