北秦岭丹凤县庾家河晶质石墨矿地质特征及找矿远景浅析
|
摘要
丹凤县庾家河晶质石墨矿区处于北秦岭复合岛弧杂岩带之凤县—商南红柱石矽线石石墨成矿带东段,沿该带已发现多个中、小型的石墨矿床(点)。矿体主要赋矿地层为古元古界秦岭岩群雁岭沟组、郭庄组及中元古界峡河岩群寨根岩组,矿体严格受层位控制。矿石为片麻岩型、片岩型及大理岩型三类大鳞片状石墨。矿床成因属区域变质型晶质石墨矿床。本文通过区内成矿地质特征及地球物理特征进行分析,类比典型区域变质型晶质石墨矿床,提出庾家河晶质石墨矿床成矿条件主要与地层、岩性、构造、岩浆作用等关系密切,综合分析认为本区石墨矿床找矿潜力巨大。
Yujiahe crystalline graphite ore deposit is located in the eastern Fengxian-Shangnan andalusite,sillimanite and graphite metallogenic belt,which belongs to the composite island arc of mixed rock zone of North Qinling orogenic belt. Several medium-sized and small graphite ore deposits( points) have been found in this metallogenic belt. The main host strata is Paleoproterozoic Erathem Qinling terrain Yanlinggou group,Guozhuang group and mesoproterozoic erathem Xiahe terrain Zhaigen petrofabric. The ore bodies are strictly controlled by the strata. Ore type consists of gneiss,schist and marble three big flaky graphite. This deposit is a regional metamorphism type crystalline graphite ore deposit. Based on the integrated study on regional metallogenic geological and geophysical characteristics of the deposit,and the analogy to the typical regional metamorphism type crystal graphite ore deposit,proposed Yujiahe crystalline graphite deposit metallogenic conditions closely associated with strata,lithology,structure and magmatism,comprehensive analysis suggested that graphite ore prospecting in this area has huge potential.
Yujiahe crystalline graphite ore deposit is located in the eastern Fengxian-Shangnan andalusite,sillimanite and graphite metallogenic belt,which belongs to the composite island arc of mixed rock zone of North Qinling orogenic belt. Several medium-sized and small graphite ore deposits( points) have been found in this metallogenic belt. The main host strata is Paleoproterozoic Erathem Qinling terrain Yanlinggou group,Guozhuang group and mesoproterozoic erathem Xiahe terrain Zhaigen petrofabric. The ore bodies are strictly controlled by the strata. Ore type consists of gneiss,schist and marble three big flaky graphite. This deposit is a regional metamorphism type crystalline graphite ore deposit. Based on the integrated study on regional metallogenic geological and geophysical characteristics of the deposit,and the analogy to the typical regional metamorphism type crystal graphite ore deposit,proposed Yujiahe crystalline graphite deposit metallogenic conditions closely associated with strata,lithology,structure and magmatism,comprehensive analysis suggested that graphite ore prospecting in this area has huge potential.
引文
[1]肖克炎,孙莉,李思远,等.我国石墨矿产地质特征及资源潜力分析[J].地球学报,2016,(5):607-614.
[2]李超,王登红,赵鸿,等.中国石墨矿床成矿规律概要[J].矿床地质,2015,34(6):1223-1236.
[3]陈刚,李凤鸣,彭湘萍.新疆玉泉山石墨矿床地质特征及成因探讨[J].新疆地质,2009,27(4):325-329.
[4]莫如爵.中国石墨矿床地质[M].北京:中国建筑工业出版社,1989:84.
[5]赵东甫,冯本智.非金属矿床[M].北京:地质出版社,1986:114.
[6]冯本智,兰心俨,周裕文.非金属矿产地质学[M].北京:地质出版社,2007:43-51.
[7]王家昌,张家英,朱艳.我国石墨成矿特征及找矿标志[J].中国非金属工业导刊,2013,(3):49-51.
[8]徐志刚,陈毓川,王登红,等.中国成矿区带划分方案[M].北京:地质出版社.2008.
[9]崔海洲,王菊婵,马晔.陕西省丹凤县庾家河石墨矿地质特征及成因浅析[J].地下水,2015,37(4):181-183.
[10]时毓,于津海,裴小利,等.秦岭造山带中秦岭杂岩的早古生代幔源岩浆作用[J].桂林理工大学大学学报,2014,34(2):207-217.
[11]张成立,王晓霞,王涛,等.东秦岭沙河湾岩体成因—来自锆石U-Pb定年及其Hf同位素的证据[J].西北大学学报,2009,39(3):453-465.
[12]丁子建.物探方法在石墨找矿中的应用[J].中国非金属工业导刊,2015,(4):26-33.
[13]张天宇,张忠良,李金钱.我国区域变质型石墨矿床研究现状综述[J].中国非金属工业导刊,2014,(3):36-38.
[14]姜继圣,刘祥.中国早前寒武纪沉积变质型晶质石墨矿床.建材地质[J],1992,(5):18-22.
[2]李超,王登红,赵鸿,等.中国石墨矿床成矿规律概要[J].矿床地质,2015,34(6):1223-1236.
[3]陈刚,李凤鸣,彭湘萍.新疆玉泉山石墨矿床地质特征及成因探讨[J].新疆地质,2009,27(4):325-329.
[4]莫如爵.中国石墨矿床地质[M].北京:中国建筑工业出版社,1989:84.
[5]赵东甫,冯本智.非金属矿床[M].北京:地质出版社,1986:114.
[6]冯本智,兰心俨,周裕文.非金属矿产地质学[M].北京:地质出版社,2007:43-51.
[7]王家昌,张家英,朱艳.我国石墨成矿特征及找矿标志[J].中国非金属工业导刊,2013,(3):49-51.
[8]徐志刚,陈毓川,王登红,等.中国成矿区带划分方案[M].北京:地质出版社.2008.
[9]崔海洲,王菊婵,马晔.陕西省丹凤县庾家河石墨矿地质特征及成因浅析[J].地下水,2015,37(4):181-183.
[10]时毓,于津海,裴小利,等.秦岭造山带中秦岭杂岩的早古生代幔源岩浆作用[J].桂林理工大学大学学报,2014,34(2):207-217.
[11]张成立,王晓霞,王涛,等.东秦岭沙河湾岩体成因—来自锆石U-Pb定年及其Hf同位素的证据[J].西北大学学报,2009,39(3):453-465.
[12]丁子建.物探方法在石墨找矿中的应用[J].中国非金属工业导刊,2015,(4):26-33.
[13]张天宇,张忠良,李金钱.我国区域变质型石墨矿床研究现状综述[J].中国非金属工业导刊,2014,(3):36-38.
[14]姜继圣,刘祥.中国早前寒武纪沉积变质型晶质石墨矿床.建材地质[J],1992,(5):18-22.