鄂尔多斯古陆金刚石成矿条件及找矿潜力
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摘要
鄂尔多斯古陆具有稳定的结晶基底和沉积盖层,也存在有利于金伯利岩形成的深切地幔的深大断裂构造。在山西柳林尖家沟地区发现众多金伯利岩,在山西应县和大同地区发现金伯利岩、钾镁煌斑岩及似金伯利岩等与金刚石形成有关的岩体,在这些地区也发现少量微粒金刚石和大量指示矿物;圈出内蒙古新庙、陕西店塔2个铬尖晶石指示矿物异常区。陕西店塔地区还发现与金伯利岩岩浆活动有关的环状构造。鄂尔多斯古陆区具备原生金刚石形成条件,具有良好的找矿潜力。
There are stable crystalline basement and deposition covers as well as faults that cut the mantle in depth, which is beneficial to kimberlite formation in the Ordos old land. Kimberlites were discovered in Liulin area of Shanxi Province. Kimberlites,potassiummagnesium lamprophyres and kimberlite-like rock related to diamond formation were found in Yingxian and Datong area of Shanxi Province,and a small amount of diamonds and a large amount of chrome spinel-indicating minerals were also found. Two chrome spinel-indicating mineral anomalies in the Xinmiao area of Inner Mongolia and the Dianta area of Shaanxi Province were delineated.Annular structures related to kimberlite magmatic activity was also found in the Dianta area of Shaanxi Province. There are metallogenic conditions and prospecting potential of original diamond in the Ordos old land.
There are stable crystalline basement and deposition covers as well as faults that cut the mantle in depth, which is beneficial to kimberlite formation in the Ordos old land. Kimberlites were discovered in Liulin area of Shanxi Province. Kimberlites,potassiummagnesium lamprophyres and kimberlite-like rock related to diamond formation were found in Yingxian and Datong area of Shanxi Province,and a small amount of diamonds and a large amount of chrome spinel-indicating minerals were also found. Two chrome spinel-indicating mineral anomalies in the Xinmiao area of Inner Mongolia and the Dianta area of Shaanxi Province were delineated.Annular structures related to kimberlite magmatic activity was also found in the Dianta area of Shaanxi Province. There are metallogenic conditions and prospecting potential of original diamond in the Ordos old land.
引文
[1]赵红格.鄂尔多斯西部盆地底部构造特征与演化[D].西北大学博士学位论文,2003.
[2]刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化-改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-638.
[3]徐俊.山西地块的深部构造及金伯利岩形成背景[J].山西地质,1986,1(2):140-150.
[4]徐俊.山西地块的深部构造及金伯利建造:兼论金刚石矿与稳定地块的深部过程[J].中国地质,2013,40(3):790-799.
[5]张宏法,包洪平,彭天朗,等.鄂尔多斯盆地西南边部超钾质岩及构造意义[J].中国地质,2012,39(5):1172-1182.
[6]内蒙古自治区地质矿产局.内蒙古区域地质志[M].北京:地质出版社,1991.
[7]杨兴科,晁会霞,张哲峰,等.鄂尔多斯盆地东部紫金山岩体特征与形成的动力学环境:盆地热力-岩浆活动的深部作用典型实例剖析[J].大地构造与成矿学,2010,34(2):269-281.
[8]陈刚,丁超,徐黎明,等.鄂尔多斯盆地东缘紫金山侵入岩热演化史与隆升过程分析[J].地球物理学报,2012,55(11):3731-3741.
[9]杨建民.山西北部金伯利岩钾镁煌斑岩岩石矿物学研究[D].中国地质科学院博士学位论文,1995.
[10]李佑国,莫宣学,赵崇贺.山西大同采凉山钾镁煌斑岩的地质与岩石学特征[J].地质科技情报,1991,S1:29-36.
[11]张连昌,卢登蓉,王溆荣,等.山西大同钾镁煌斑岩的地质地球化学特征[J].矿物岩石,1998,18(4):31-37.
[12]侯满堂.陕西金刚石矿的调研回顾与建议[J].陕西地质,1998,23(2):1-3.
[13]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
[14]李麟,胡俊成.鄂尔多斯金刚石找矿前景[J].华东地质,2017,38(增刊):11-13.
[15]陈宝赟,赵强,王小郎.鄂尔多斯地块东缘柳林尖家沟一带金伯利岩岩石学特征[J].华东地质,2017,38(增刊):14-16.
[16]魏云峰,王俊虎.柳林县尖家沟金伯利岩地球化学特征及地质意义[J].华北国土资源,2015,(2):116-118.
[17]柯元硕,田为恕.金伯利岩和钾镁煌斑岩的群集性在金刚石地质勘查中的意义[J].地质科技情报,1991,S1:21-28.
[18]王江涛.陕北北部水系自然重砂中铬尖晶石指示矿物特征及其分布[J].陕西地矿信息,1999,24(1):25-26.
[19]郑翻身,康屹青,康红在,等.鄂尔多斯古陆核内部中生代晚期火山岩的发现及其地质意义[J].地质力学学报,2009,15(1):69-76.
[20]池际尚,路凤香.中国原生金刚石成矿地质条件研究[M].武汉:中国地质大学出版社,1996.
[2]刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化-改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-638.
[3]徐俊.山西地块的深部构造及金伯利岩形成背景[J].山西地质,1986,1(2):140-150.
[4]徐俊.山西地块的深部构造及金伯利建造:兼论金刚石矿与稳定地块的深部过程[J].中国地质,2013,40(3):790-799.
[5]张宏法,包洪平,彭天朗,等.鄂尔多斯盆地西南边部超钾质岩及构造意义[J].中国地质,2012,39(5):1172-1182.
[6]内蒙古自治区地质矿产局.内蒙古区域地质志[M].北京:地质出版社,1991.
[7]杨兴科,晁会霞,张哲峰,等.鄂尔多斯盆地东部紫金山岩体特征与形成的动力学环境:盆地热力-岩浆活动的深部作用典型实例剖析[J].大地构造与成矿学,2010,34(2):269-281.
[8]陈刚,丁超,徐黎明,等.鄂尔多斯盆地东缘紫金山侵入岩热演化史与隆升过程分析[J].地球物理学报,2012,55(11):3731-3741.
[9]杨建民.山西北部金伯利岩钾镁煌斑岩岩石矿物学研究[D].中国地质科学院博士学位论文,1995.
[10]李佑国,莫宣学,赵崇贺.山西大同采凉山钾镁煌斑岩的地质与岩石学特征[J].地质科技情报,1991,S1:29-36.
[11]张连昌,卢登蓉,王溆荣,等.山西大同钾镁煌斑岩的地质地球化学特征[J].矿物岩石,1998,18(4):31-37.
[12]侯满堂.陕西金刚石矿的调研回顾与建议[J].陕西地质,1998,23(2):1-3.
[13]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
[14]李麟,胡俊成.鄂尔多斯金刚石找矿前景[J].华东地质,2017,38(增刊):11-13.
[15]陈宝赟,赵强,王小郎.鄂尔多斯地块东缘柳林尖家沟一带金伯利岩岩石学特征[J].华东地质,2017,38(增刊):14-16.
[16]魏云峰,王俊虎.柳林县尖家沟金伯利岩地球化学特征及地质意义[J].华北国土资源,2015,(2):116-118.
[17]柯元硕,田为恕.金伯利岩和钾镁煌斑岩的群集性在金刚石地质勘查中的意义[J].地质科技情报,1991,S1:21-28.
[18]王江涛.陕北北部水系自然重砂中铬尖晶石指示矿物特征及其分布[J].陕西地矿信息,1999,24(1):25-26.
[19]郑翻身,康屹青,康红在,等.鄂尔多斯古陆核内部中生代晚期火山岩的发现及其地质意义[J].地质力学学报,2009,15(1):69-76.
[20]池际尚,路凤香.中国原生金刚石成矿地质条件研究[M].武汉:中国地质大学出版社,1996.