本文選題：噴流巖 + 物質(zhì)組分特征��； 參考：《成都理工大學(xué)》2017年碩士論文

【摘要】：噴流巖(即熱水沉積巖),是當(dāng)前地質(zhì)學(xué)領(lǐng)域研究熱點(diǎn)之一,目前研究多集中于海相環(huán)境,而湖相環(huán)境研究明顯偏少,尤其是湖相“白煙型”噴流巖。同時(shí),在與之類似的湖相“白煙型”噴流巖的致密油儲(chǔ)層中已獲得重要的油氣勘探進(jìn)展,顯示了噴流巖作為良好的致密油儲(chǔ)層,其具備的重大勘探開發(fā)潛力。因此,本文對(duì)湖相“白煙型”噴流巖的研究,不論是對(duì)于地學(xué)理論研究,還是對(duì)于勘探開發(fā)生產(chǎn)都具有重要意義。本文以準(zhǔn)噶爾盆地西北緣烏爾禾地區(qū)下二疊統(tǒng)風(fēng)城組為例,通過(guò)開展巖石學(xué)、礦物學(xué)及地球化學(xué)等研究,取得如下成果及認(rèn)識(shí):(1)研究區(qū)風(fēng)城組沉積期具有前陸盆地性質(zhì),構(gòu)造運(yùn)動(dòng)及火山噴發(fā)活動(dòng)頻繁,具有古地?zé)岜尘案弋惓５奶卣?區(qū)內(nèi)深大斷裂系統(tǒng)發(fā)育,為熱液運(yùn)移提供良好的通道。(2)研究區(qū)風(fēng)城組噴流巖物質(zhì)組分以白云石和鹽類礦物為主,可識(shí)別出含鐵白云石、鐵白云石、硅硼鈉石、水硅硼鈉石、碳鈉鈣石、氯碳鈉鎂石、碳鈉鎂石、蘇打石、石鹽及硬石膏等等,部分為硅酸鹽或鋁硅酸鹽礦物,金屬硫化物主要為黃鐵礦。(4)風(fēng)城組噴流巖中不同巖石類型在普遍強(qiáng)烈富集Li、Mo、W、U等微量元素,又表現(xiàn)為不同巖類具有各自不同的微量元素富集特征,其富集特征不僅明顯區(qū)別于正常沉積,指示其沉積期有深部熱流體的參與,也顯示風(fēng)城組白云巖類沉積期流體具有多源性的特點(diǎn)。(5)通過(guò)主量元素、微量元素以及碳、氧同位素、鍶同位素、硼同位素和包裹體特征分析,表明風(fēng)城組沉積期氣候干燥炎熱,蒸發(fā)量大,屬于半封閉—封閉的還原環(huán)境,且成巖過(guò)程中,有來(lái)自于虧損幔源流體的參與。(6)研究區(qū)巖性類型以云質(zhì)巖為主,白云巖中常有陸源碎屑、泥和火山灰物質(zhì)的混入,其中陸源碎屑主要為細(xì)粒的粉砂,來(lái)源于淺湖區(qū)的扇三角洲前緣砂體,并受事件作用(風(fēng)暴、洪水、地震、火山活動(dòng))等失穩(wěn)形成重力流(砂質(zhì)碎屑流、風(fēng)暴流和濁流),帶入的粉砂、泥和飄入湖盆內(nèi)的火山灰一起與盆內(nèi)的準(zhǔn)同生期熱液沉淀白云石混合、或與已固結(jié)的先期白云巖形成互層,共同構(gòu)成具有典型的“間斷-交叉”內(nèi)外源混合沉積白云巖類。
[Abstract]:The exhalation rocks (i.e. hot water sedimentary rocks) are one of the research hotspots in the field of geology. At present, the researches are mostly focused on the marine environment, but the study on the lacustrine environment is obviously less, especially on the lacustrine "white smoke" jet rocks. At the same time, important oil and gas exploration progress has been obtained in the tight oil reservoir of the similar lacustrine "Baiyan" jet rock, which shows that the exhalation rock as a good tight oil reservoir has great potential for exploration and development. Therefore, the study of the lacustrine "white smoke" jet rock is of great significance for the study of geoscience theory as well as for exploration and production. Taking the Fengcheng formation of the Lower Permian in Wuerhe area on the northwestern margin of Junggar Basin as an example, through the study of petrology, mineralogy and geochemistry, the following results have been obtained and the understanding that the Fengcheng formation in the study area has the character of Foreland basin during the sedimentary period. The tectonic movements and volcanic eruptions are frequent, with the characteristics of high anomaly of paleogeothermal background, and the deep fault system is developed in this area, which provides a good channel for hydrothermal migration.) the material composition of the jet rock of Fengcheng formation in the study area is mainly dolomite and salt minerals. They can be identified as dolomite, sodium silicoborite, sodium silicate, sodium carbonate, sodium magnesium chloride, soda, rock salt and anhydrite, etc., some of which are silicate or aluminosilicate minerals, The metal sulfides are mainly pyrite. 4) the different rock types of the Fengcheng formation strongly enrich trace elements such as Liqimo WZU and other trace elements, and the different rocks have different characteristics of trace element enrichment. The enrichment characteristics are not only distinct from normal deposition, but also indicate that deep thermal fluids are involved in the sedimentary period. It also shows that the fluid of dolomite sedimentary period of Fengcheng formation has multi-source characteristics. 5) through major elements, trace elements, carbon and oxygen isotopes, The characteristics of strontium isotope, boron isotope and inclusions show that Fengcheng formation was characterized by dry and hot climate and large evaporation during the sedimentary period, which belongs to a semi-enclosed and closed reduction environment and is in the diagenetic process. The lithologic types in the study area are dominated by dolomite, and there is often a mixture of continental clastic materials, mud and volcanic ash in dolomite, in which the continental source debris is mainly fine silt. The fan delta front sand body originated from the shallow lake region is affected by events (storm, flood, earthquake, volcanic activity) and other instability to form gravity flow (sand debris flow, storm current and turbidity current) brought in silt, The mud and the volcanic ash floating into the lake basin are mixed with the quasi-syntectic hydrothermal precipitated dolomite in the basin, or interbedded with the preconsolidated dolomite, forming a typical "discontinuous-cross" mixed sedimentary dolomite from both internal and external sources.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 常海亮;鄭榮才;郭春利;文華國(guó);;準(zhǔn)噶爾盆地西北緣風(fēng)城組噴流巖稀土元素地球化學(xué)特征[J];地質(zhì)論評(píng);2016年03期

2 傅饒;鄭榮才;常海亮;祁利祺;文華國(guó);李云;;湖相“白煙型”噴流巖——新型的致密油儲(chǔ)層類型——以準(zhǔn)噶爾盆地西緣烏爾禾地區(qū)風(fēng)城組為例[J];巖性油氣藏;2015年03期

3 賈斌;文華國(guó);李穎博;劉亞鵬;王濤;;準(zhǔn)噶爾盆地烏爾禾地區(qū)二疊系風(fēng)城組鹽類礦物流體包裹體特征[J];沉積與特提斯地質(zhì);2015年01期

4 馮有良;王瑞菊;吳衛(wèi)安;王春芳;;準(zhǔn)噶爾盆地西北緣二疊紀(jì)古構(gòu)造對(duì)層序地層建造及沉積體系的控制[J];山東科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年05期

5 焦鑫;柳益群;周鼎武;汪雙雙;南云;周寧超;楊焱鈞;;“白煙型”熱液噴流巖研究進(jìn)展[J];地球科學(xué)進(jìn)展;2013年02期

6 朱世發(fā);朱筱敏;劉繼山;姚遠(yuǎn);鮮本忠;牛花朋;趙長(zhǎng)永;;富孔熔結(jié)凝灰?guī)r成因及油氣意義——以準(zhǔn)噶爾盆地烏—夏地區(qū)風(fēng)城組為例[J];石油勘探與開發(fā);2012年02期

7 馮有良;張義杰;王瑞菊;張光亞;吳衛(wèi)安;;準(zhǔn)噶爾盆地西北緣風(fēng)城組白云巖成因及油氣富集因素[J];石油勘探與開發(fā);2011年06期

8 柳益群;焦鑫;李紅;袁明生;YANG Wan;周小虎;梁浩;周鼎武;鄭朝陽(yáng);孫芹;汪雙雙;;新疆三塘湖躍進(jìn)溝二疊系地幔熱液噴流型原生白云巖[J];中國(guó)科學(xué):地球科學(xué);2011年12期

9 王振宇;王二偉;楊薇;林新;孫超;郭靖;;塔中地區(qū)下奧陶統(tǒng)鷹山組熱液白云巖內(nèi)幕型儲(chǔ)層形成機(jī)制及其分布特征[J];石油天然氣學(xué)報(bào);2011年12期

10 朱世發(fā);朱筱敏;王緒龍;劉振宇;;準(zhǔn)噶爾盆地西北緣二疊系沸石礦物成巖作用及對(duì)油氣的意義[J];中國(guó)科學(xué):地球科學(xué);2011年11期

相關(guān)博士學(xué)位論文 前1條

1 文華國(guó);酒泉盆地青西凹陷湖相“白煙型”熱水沉積巖地質(zhì)地球化學(xué)特征及成因[D];成都理工大學(xué);2008年

相關(guān)碩士學(xué)位論文 前2條

1 李向東;準(zhǔn)噶爾盆地北緣中新生代沉降史分析[D];西北大學(xué);2007年

2 呂嶸;準(zhǔn)噶爾盆地南緣陸內(nèi)前陸盆地構(gòu)造演化與油氣關(guān)系[D];中國(guó)地質(zhì)大學(xué)（北京）;2005年

，

本文編號(hào)：2012801