内蒙古1:5万乌音呼日勒庙等四幅区域地质矿产调查新进展
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摘要
内蒙古1∶5万乌音呼日勒庙等四幅区域地质矿产调查项目取得的新进展及主要成果为:根据岩石组合、动植物化石及同位素年龄等,重新厘定、划分了16个岩石地层填图单位,在多个组段沉积岩层位中首次发现丰富的动、植物化石,建立了各地层年代学格架;将侵入岩重新解体划分为4个填图单元,并建立了侵入岩年代学格架;新发现1处规模较大的韧性变形带,主要为逆—左行走滑韧性断层,时代归属于中三叠世末期,为额尔古纳河—阿龙山NE向韧性变形域的南部延伸;新发现矿(化)点20处,其中金属矿点3处,金属矿化点6处,非金属矿点9处,非金属矿化点2处;总结了该区成矿规律,圈定了成矿远景区及找矿靶区。
The new progresses and achievements of 1 ∶ 50 000 regional geological survey of Wuyinhurile Temple sheet and the other three sheets in Inner Mongolia were as follows. Based on rock associations,animal and plant fossils and isotopic age,the authors redefined and divided the rock succession into sixteen lithostratigraphic mapping units. Abundant animal and plant fossils were found for the first time in a variety of sedimentary rock intervals,and the chronological frameworks of the sedimentary strata were established. The intrusive rocks were redivided into four mapping units,and the chronological frameworks of intrusive rocks were established. A large-scale ductile deformation zone was discovered and interpreted as an inverse-left-lateral ductile strike-slip fault of the late Middle Triassic period,which was the southern part of the NE-trending Ergun River-Alongshan ductile deformation domain. The authors have discovered twenty new mineral occurrences,including three metal mineral occurrences,six mineralization occurrences,nine non-metallic occurrences,and two mineralization occurrences.This paper also summarized the metallogenic regularity in the area,and delineated mineralization and prospecting target areas.
The new progresses and achievements of 1 ∶ 50 000 regional geological survey of Wuyinhurile Temple sheet and the other three sheets in Inner Mongolia were as follows. Based on rock associations,animal and plant fossils and isotopic age,the authors redefined and divided the rock succession into sixteen lithostratigraphic mapping units. Abundant animal and plant fossils were found for the first time in a variety of sedimentary rock intervals,and the chronological frameworks of the sedimentary strata were established. The intrusive rocks were redivided into four mapping units,and the chronological frameworks of intrusive rocks were established. A large-scale ductile deformation zone was discovered and interpreted as an inverse-left-lateral ductile strike-slip fault of the late Middle Triassic period,which was the southern part of the NE-trending Ergun River-Alongshan ductile deformation domain. The authors have discovered twenty new mineral occurrences,including three metal mineral occurrences,six mineralization occurrences,nine non-metallic occurrences,and two mineralization occurrences.This paper also summarized the metallogenic regularity in the area,and delineated mineralization and prospecting target areas.
引文
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[12]王金贵,张鑫全,李典,等.综合方法在内蒙古杭盖音浑迪浅覆盖区寻找隐伏矿床中的应用[J].中国地质调查,2016,3(4):69-75.
[13]赵胜金,高利东,武中华,等.综合地物化技术在额仁陶勒盖矿集区地质找矿中的应用——布日罕特银多金属矿点的发现及意义[J].地质与勘探,2018,54(1):121-129.
[2]黑龙江省第一地质勘察院.内蒙古新巴尔虎右旗乌音呼日勒庙等四幅1∶5万区域地质矿产调查报告[R].哈尔滨:黑龙江省第一地质勘察院,2009.
[3]赵胜金,于海洋,周颖帅,等.内蒙古1∶5万乌音呼日勒庙幅、新巴尔虎右旗幅、霍特林呼都格幅、勃迪木呼都格幅区域地质矿产调查[R].赤峰:内蒙古自治区第十地质矿产勘查开发院,2017.
[4]田京,李进文,王润和,等.内蒙古额仁陶勒盖地区侵入岩LA-ICP-MS锆石U-Pb年龄及地球化学特征[J].中国地质,2014,41(4):1092-1107.
[5]佘宏全,李红红,李进文,等.内蒙古大兴安岭中北段铜铅锌金银多金属矿床成矿规律与找矿方向[J].地质学报,2009,83(10):1456-1472.
[6]刘永江,张兴洲,金巍,等.东北地区晚古生代区域构造演化[J].中国地质,2010,37(4):943-951.
[7]许文良,王枫,裴福萍,等.中国东北中生代构造体制与区域成矿背景:来自中生代火山岩组合时空变化的制约[J].岩石学报,2013,29(2):339-353.
[8]李锦轶,张进,杨天南,等.北亚造山区南部及其毗邻地区地壳构造分区与构造演化[J].吉林大学学报:地球科学版,2009,39(4):584-605.
[9]唐杰,许文良,王枫,等.张广才岭帽儿山组双峰式火山岩成因:年代学与地球化学证据[J].世界地质,2011,30(4):508-520.
[10]陈毓川,王登红,徐志刚,等.中国重要矿产和区域成矿规律[M].北京:地质出版社,2015.
[11]方曙,张忠,于海洋,等.内蒙古东部大地构造[M].北京:地质出版社,2013.
[12]王金贵,张鑫全,李典,等.综合方法在内蒙古杭盖音浑迪浅覆盖区寻找隐伏矿床中的应用[J].中国地质调查,2016,3(4):69-75.
[13]赵胜金,高利东,武中华,等.综合地物化技术在额仁陶勒盖矿集区地质找矿中的应用——布日罕特银多金属矿点的发现及意义[J].地质与勘探,2018,54(1):121-129.