發(fā)布時(shí)間：2018-02-02 03:46

  本文關(guān)鍵詞： 鈾 多金屬 海西期花崗巖 工作部署 哈噶屯地區(qū)　出處：《東華理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：內(nèi)蒙古科爾沁右翼中旗哈嘎屯地區(qū)位于大興安嶺中南段東緣,是西伯利亞與中朝板塊之間對(duì)接碰撞后形成的中—晚期華力西地槽的一部分。晚侏羅世斷裂活動(dòng)加劇,在燕山早期,大規(guī)�；鹕健獛r漿侵入活動(dòng)形成了北東向構(gòu)造—巖漿帶。深源巖漿為成礦提供了熱源和成礦物質(zhì),形成了著名的大興安嶺銅、鉛、鋅、銀、錫多金屬成礦帶。設(shè)計(jì)工作區(qū)處于該多金屬成礦帶之林西—扎蘭屯成礦亞帶上,在古生代屬西伯利亞板塊東南陸緣增生帶和華北板塊北部陸緣增生帶,從中生代開始成為歐亞板塊東緣的一部分,受濱西太平洋強(qiáng)烈影響,成為濱西太平洋火山-巖漿巖帶的一部分。其Ⅰ級(jí)成礦帶屬古亞洲成礦域的東段及古亞洲成礦域與濱(西)太平洋成礦域疊加復(fù)合部位。古亞洲成礦域與濱太平洋成礦域疊置,多期成礦疊加,增強(qiáng)了成礦的強(qiáng)度。根據(jù)大地構(gòu)造背景和已知礦床(孟恩陶力銀鉛鋅礦床、蓮花山銅礦床、布敦花銅礦床等)的分布及其形成的地質(zhì)構(gòu)造條件分析,該地區(qū)具有良好的找礦前景。在前人工作的基礎(chǔ)上,對(duì)資料進(jìn)行系統(tǒng)整理分析,以鉆探為主要手段,對(duì)區(qū)內(nèi)已發(fā)現(xiàn)多條礦化蝕變帶、激電中梯異常、鈾礦化點(diǎn)以及含礦海西期花崗巖巖體進(jìn)行評(píng)價(jià)其成礦潛力;對(duì)上侏羅統(tǒng)滿克頭鄂博組與海西晚期侵入巖接觸帶部位進(jìn)行大比例尺的地質(zhì)、物探測(cè)量,尋找新的礦化信息以及深部激電異常體,逐步擴(kuò)大找礦靶區(qū),為下一步工作提供依據(jù)。本文以鈾及多金屬找礦理論為指導(dǎo),對(duì)成礦有利地段進(jìn)行評(píng)價(jià),注重礦點(diǎn)突破,兼顧外圍,對(duì)2015年工作(項(xiàng)目實(shí)施、組織管理、經(jīng)費(fèi)、質(zhì)量及安全保障情況)行了詳細(xì)部署。
[Abstract]:The Hagatun area of Horqin Middle Banner is located in the eastern margin of the central and southern section of Daxing'anling Mountains, Inner Mongolia. It is a part of the late Huaxi geosyncline formed by the docking collision between Siberia and China and Korea. The late Jurassic fault activity intensified in the early Yanshanian. The large-scale volcano-magmatic intrusions formed the NE-trending tectonic-magmatic zone. The deep magma provided the heat source and ore-forming material for the mineralization, and formed the famous copper, lead, zinc and silver in the Daxinganling Mountains. The design work area is located in the Linxi-Zalantun metallogenic subzone of the polymetallic metallogenic belt, which belongs to the southeastern accretive zone of Siberian plate and the northern margin of North China plate in Paleozoic. It became part of the eastern margin of the Eurasian plate from the Mesozoic and was strongly influenced by the western coast of the Pacific Ocean. It is a part of the volcanic-magmatic belt in the West Coast Pacific Ocean. Its grade I metallogenic belt belongs to the eastern segment of the Paleo-Asian metallogenic domain and the Paleo-Asian metallogenic domain and the shore-based (western) metallogenic belt. The superposition of the Pacific metallogenic domain. The paleo-Asian metallogenic domain and the riparian Pacific metallogenic domain are superimposed. The multi-stage metallogenic superposition enhanced the metallogenic strength. According to the tectonic setting and known deposits (Menn Taoli Ag Pb Zn deposit Lianhuashan copper deposit). The distribution of Buduhua copper deposit and the geological structural conditions of its formation show that the area has a good prospecting prospect. On the basis of the previous work, the data are systematically analyzed and drilled as the main means. The ore-forming potential of several mineralization alteration zones, induced medium ladder anomalies, uranium mineralization points and ore-bearing Hercynian granitic rocks has been evaluated in this area. The contact zone between the upper Jurassic Mankitou Obo formation and the late Hercynian intrusive rocks was measured on a large scale, geophysical prospecting was carried out, new mineralization information and deep IP anomaly were searched for, and the prospecting target area was gradually expanded. This paper, guided by uranium and polymetallic prospecting theory, evaluates the favorable ore-forming areas, pays attention to the breakthrough of ore points, takes into account the periphery, and works on 2015 (project implementation, organization and management). Detailed arrangements are made for funding, quality and safety.
【學(xué)位授予單位】：東華理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P619.14;P618.2

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