3D Data Simulation of TEM Method and its Exploration Application
-
摘要: 借助三维正演数值模拟获取已知矿点上的瞬变电磁法（TEM）响应理论曲线，从理论上证明了在锡铁山铅锌矿区开展TEM方法工作的有效性。笔者主要以锡铁山典型铅锌矿床为例，讨论瞬变电磁三维正演数值模拟在该类型矿床的应用效果，并通过实测剖面进行验证。通过在锡铁山断层沟地区已知矿点上的TEM中心回线和重叠回线对比试验工作，确定了一套适合该地区寻找铅锌矿体的TEM工作方法参数，说明TEM响应电位异常曲线能较好的反映规则低阻异常体，背景场响应与主异常区响应幅值差较大、衰减稳定，能有效分辨不同深度矿致异常的能力。
-
关键词:
- 瞬变电磁法(TEM) /
- 锡铁山断层沟 /
- 中心回线和重叠回线 /
- 深边部找矿 /
- 三维数值模拟
Abstract: By using the modeling test of 3D simulation, the response potential curves of TEM has been obtained for discovering mineral occurrence. Thus, the TEM method has been proved as an effective method for prospecting in this mining area.A set of TEM method parameters for Pb-Zn ore bodies are determined by comparing the test works between TEM central loops andsuperimposed loops in Duancenggou district of the Xitieshan mining area. The TEM response potential abnormal curve can reflect the abnormal feature of low resistance object effectively. The response amplitude has large ambient field and its anomaly area with stable attenuation, which has an effective ability to distinguish the mineralization anomalies at different depth. -
-
张德全,王富春,李大新,等.柴北缘地区的两类块状硫化物矿床-Ⅰ.锡铁山式SEDEX型铅锌矿床[J].矿床地质,2005,24(5):471-480. ZHANG Dequan,WANG Fuchun,LI Daxin,et al. Two types of massive sulfide deposits on no-rthern margin of Qaidam basin,Qing hai Province:I.Xietieshan style SEDEX leadzincdeposits[J]. Mineral Deposits, 2005,24(5):471-480.
汪劲草,彭恩生,孙振家.青海锡铁山铅锌矿床喷流沉积后的构造再造过程[J].大地构造与成矿学,2000,24(2):163-169. WANG Jincao, PENG Ensheng, SUN Zhenjia.Tectonic Reconstruction Of The XitieshanPb-Zn Deposit After Spout Sedimentation, QingHai Province[J]. Geotectonica et Metallogenia,2000,24(2):163-169.
宋忠宝,张雨莲,张照伟,等.青海锡铁山铅锌矿的成因讨论[J].西北地质,2012,45(1):134-139. SONG Zhongbao, ZHANG Yulian, ZHANG Zhaowei, et al. Genetic Discussion of Xitieshan LeadZinc Deposit in Qinghai Province[J]. Northwestern Geology, 2012,45(1):134-139.
吴冠斌,孙华山,冯志兴,等. 锡铁山铅锌矿床成矿构造北京[J].地球化学,2010,39(3):229-239. WU Guanbin, SUN Huashan, FENG Zhixing, et al. The paleotectonic setting of Xitieshan lead-zinc deposit[J]. Geochimica, 2010,39(3):229-239.
张小路,王钟.大功率TEM法在锡铁山矿区深边部找矿中的应用效果[J]. 桂林理工大学学报,2010, 30(2):179-187. ZHANG Xiaolu, WANG Zhong. High-Power TEM Application in Deep and Verge ProspectingatXitieshan Mining Area[J]. Joumal of Guilin University of Technology,2010, 30(2):179-187.
刘国兴,王喜臣,张小路,等. 大功率激电和瞬变电磁法在青海锡铁山深部找矿中的应用[J].吉林大学学报,2003,33(4):551-554. LIU Guoxing,WANG Xichen,ZHANG Xiaolu,et al.The combined application of high-power induced polarization and ransientelectromagnetic method in the deepmineralexploration in Xi Tie mountain area of QingHai[J].Journal of Jilin Universityof Earth Sciences,2003,33(4):551-554.
徐赵容,董瑞春,刘国兴,等.地质调查中的电法勘探供电系统[J].长春地质学院学报,1993, 23(3):330-333. XU Zhaorong,DONG Ruichun,LIU Guoxing, et al.The transmitter system of electrical prospecting method used in the geological survey[J].Journal of Changchun University of Earth Sciences,1993,23(3):330-333.
殷长春.瞬变电磁测深法的研究深度[J].长春地质学院学报,1992,22(1):103-107. YIN Changchun.The investigation depth of transient electromagnetic sounding method[J].Journal of Changchun University of Earth Sciences,1993,22(1):103-107.
吴昌志,顾连兴,冯慧,等.青海锡铁山铅锌矿床的矿体成因类型讨论[J].中国地质,2008,35(6):1186-1196. WU Changzhi,GU Lianxing,FENG Hui,et al. Genetic types of orebodies in the Xitieshan lead-zine deposit,QinghaiProvince,Western China[J].Geology in China, 2008,35(6):1186-1196.
邓吉牛.青海锡铁山矿区褶皱构造及其找矿预测[J].有色金属矿产与勘查,1999,8(5):283-288. DENG Jiniu. Fold structure and prodiction for prospecting in the Xitieshanorefield,Qinghai[J]. Geol.Explor Non-Ferrous Metals,1999, 8(5):283-288.
计量
- 文章访问数: 2251
- HTML全文浏览量: 0
- PDF下载量: 2129
下载:
