甘肃红山地区重要控矿地质单元GF-1数据遥感解译与应用

doi:10.6046/gtzyyg.2018.02.22

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摘要

为了解高分一号(GF-1)卫星图像在地质找矿领域的应用性能,查明甘肃红山地区的成矿地质环境,利用GF-1图像对红山地区的控矿地层、构造和岩体进行遥感解译。在收集、梳理前人研究成果和野外验证的基础上,综合分析红山地区的成矿地质特征和规律,总结区内与多金属矿密切相关的地质体,建立该区重要控矿地层、控矿构造和控矿岩体的GF-1图像解译标志; 通过分析重要控矿地质单元的成矿地质特征和成矿规律,解析和挖掘典型矿床的控矿地质要素特征,整合典型矿床所处地质环境和控矿及赋矿要素信息,综合剖析典型多金属矿床的多源异常特征,构建找矿模型; 开展找矿应用,圈定遥感找矿有利地段。经野外查证,新发现铜、钼、铁、锌等多金属矿化线索,均位于GF-1图像解译的重要控矿地质单元区,取得了较好的找矿成果,表明国产卫星数据能够很好地应用于地质矿产勘查领域。

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	王瑞军
	闫柏琨
	李名松
	董双发
	孙永彬
	汪冰

关键词 ：高分一号(GF-1)卫星, 重要控矿地质单元, 遥感解译, 找矿应用, 红山地区

Abstract：

For the purpose of understanding the performance of the high resolution satellite image in the geological prospecting field and finding out the metallogenic geological environment of Hongshan Region in Gansu Province, the authors interpreted the ore-controlling strata, structures and rock masses in Hongshan Region by using the Gaofen-1 satellite(GF-1)remote sensing images. On the basis of reviewing and summarizing the results of previous studies and field verification, the geological characteristics and metallogenic regularity of Hongshan Region were analyzed comprehensively, the geological bodies closely related to the polymetallic deposit were summarized, and the GF-1 image interpretation keys of the important ore-controlling strata, ore controlling structure and ore rock were established. Based on the analysis of metallogenic geological characteristics and metallogenic regularity of the important ore-controlling geological units, the authors analyzed and excavated the characteristics of the ore-controlling geological factors of typical ore deposits, integrated the geological environment of the typical ore deposits and ore-controlling information; the multi-source anomaly characteristics of the typical polymetallic deposit were comprehensively analyzed, and the ore-prospecting model was established. The remote sensing prospecting was carried out, and the favorable areas for prospecting were delineated. Copper, molybdenum, iron, zinc and other metal mineralization clues were newly discovered through the field investigation, which are located in the important ore- controlling geological units according to the GF-1 image interpretation, and the better results of prospecting were achieved. The results show that the domestic satellite data can obtain good application results in the field of geological mineral exploration.

Key words： Gaofen-1 satellite(GF-1) important ore-controlling geological unit remote sensing interpretation ore prospecting application Hongshan Region

收稿日期: 2016-09-19 出版日期: 2018-05-30

TP79P623.2

基金资助:中国地质调查局地质调查项目“天山—北山重要成矿区带遥感调查”(编号: 121201003000150008)

引用本文:

王瑞军, 闫柏琨, 李名松, 董双发, 孙永彬, 汪冰. 甘肃红山地区重要控矿地质单元GF-1数据遥感解译与应用[J]. 国土资源遥感, 2018, 30(2): 162-170.
Ruijun WANG, Bokun YAN, Mingsong LI, Shuangfa DONG, Yongbin SUN, Bing WANG. Remote sensing interpretation of important ore-controlling geological units in Hongshan Region of Gansu Province using GF-1 image and its application. Remote Sensing for Land & Resources, 2018, 30(2): 162-170.

链接本文:

https://www.gtzyyg.com/CN/10.6046/gtzyyg.2018.02.22 或 https://www.gtzyyg.com/CN/Y2018/V30/I2/162

Fig.1 红山地区GF-1正射影像图(GF-1 B4(R),B3(G),B2(B)假彩色合成图像)

Fig.2 青白口系大豁落山群(Qbd)GF-1影像特征

Fig.3 震旦系泽鲁木群(Z_1-2z)GF-1影像特征

Fig.4 寒武系西双鹰山群(∈_2-3x)GF-1影像特征

Fig.5 志留纪岩体GF-1影像特征

Fig.6 褶皱构造GF-1影像特征
1.第四系全新统; 2.罗雅楚山群下岩组; 3.寒武系西双鹰山群; 4.震旦系泽鲁木群; 5.南华系洗肠井组; 6.青白口系大豁落山群第四岩组; 7.大豁落山群第三岩组; 8.大豁落山群第二岩组; 9.大豁落山群第一岩组; 10.蓟县系平头山群; 11.长城系古硐井群; 12.石英闪长岩; 13.英云闪长岩; 14.韧性剪切带; 15.正断层; 16.性质不明断层; 17.地质界线; 18.平行不整合界线; 19.角度不整合界线

Fig.7 断裂构造GF-1影像特征

Tab.1 重要控矿地质单元野外验证结果

Tab.2 红山地区典型矿床找矿模型

Fig.8 红山地区遥感找矿有利地段分布
1.全新统: 砂砾土; 2.奥陶系锡林柯博组: 凝灰质砂岩、粉砂岩; 3.奥陶系罗雅楚山群下岩组: 石英砂岩、粉砂岩; 4.寒武系西双鹰山群: 砂质板岩、石英岩; 5.震旦系泽鲁木群: 大理岩、板岩; 6.南华系洗肠井群: 大理岩、粉砂岩; 7.青白口系大豁落山群第四岩组: 千枚岩、石英岩夹磁铁矿层; 8.第三岩组: 大理岩、板岩; 9.第二岩组: 灰岩、石英砂岩; 10.第一岩组: 大理岩、片岩; 11.蓟县系平头山群: 大理岩、白云岩、石英岩; 12.泥盆纪二长花岗岩; 13.泥盆纪石英闪长岩; 14.志留纪花岗闪长岩; 15.志留纪英云闪长岩; 16.志留纪斜长角闪岩; 17.志留纪辉长—辉绿岩; 18.志留纪角闪橄榄岩; 19.辉绿岩脉; 20.断裂构造; 21.韧性剪切带; 22.地质界线; 23.地层产状; 24.与控矿地层密切相关的找矿有利地段; 25.与控矿构造密切相关的找矿有利地段; 26.与控矿岩体密切相关的找矿有利地段

Fig.9 铜钼矿化线索区野外实地照片

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