| 王滑冰,邵江波,都鹏飞,张艳飞,郭鑫,黄达.地物化综合方法在坦桑尼亚卢帕金矿田东缘找矿中的应用[J].矿产勘查,2020,11(10):2254-2266 |
| 地物化综合方法在坦桑尼亚卢帕金矿田东缘找矿中的应用 |
| Application of the integrated geological,geophysical and geochemical methods to ore-prospecting at the eastern margin of the Lupa gold field,Tanzania |
| 投稿时间：2020-03-25 |
| DOI： |
| 中文关键词: 金矿 化探异常 物探异常 卢帕金矿田 坦桑尼亚 |
| 英文关键词: gold deposit, geophysical anomaly, geochemical anomaly, Lupa gold field,Tanzania |
| 基金项目:河南省财政地质勘查项目(编号:豫国土资发[2017]22号)资助。 |
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| 中文摘要: |
| 卢帕金矿田位于坦桑尼亚西南部,是坦桑尼亚仅次于北部维多利亚湖金矿田的重要产金区。通过在卢帕金矿田东缘已知金矿点及其外围开展地质、物探和化探综合勘查。在东部土壤测量区发现了8个综合异常,其中HT1-甲3 As-Au-W-Sb、HT4-甲3 Au-As和HT7-乙3 Au-Mo-Bi-Ag等3个综合异常,异常面积大、强度高,具清晰的三级浓度分带和较强的浓集中心,经查证均为矿致异常。经地表探槽工程和深部钻孔验证,在研究区西部发现工业金矿体,证实激电中梯D9、D5、D3 “低阻”异常带应为F1、F2、F3构造破碎带深部激电响应。该矿床的发现是地质、物探、化探综合勘查方法在卢帕金矿田东缘找矿实践中的成功案例。 |
| 英文摘要: |
| The Lupa gold field is located in the southwest of Tanzania, which is an important gold-producing area followed by the northern Victoria Lake Goldfield. Comprehensive geological,electrical measures and soil geochemical exploration was carried out in the known gold spots and their periphery on the eastern margin of the Lupa goldfield. Eight comprehensive anomalies were found in the eastern soil measurement area. The three comprehensive anomalies, HT1-A3 As-Au-W-Sb, HT4-A3 Au-As and HT7-B3 Au-Mo-Bi-Ag, have large anomaly area and clear third-level concentration zone and a strong concentration center, which are verified that they are all mine-induced abnormalities.After surface trenching and deep drilling verification, industrial gold ore body was found in the western part of the study area, and it was confirmed that the “low-resistance” anomalous zones of the induced staircases D9, D5 and D3 should be the deep response of F1, F2 and F3 tectonic crushing zones. The discovery of this deposit is a successful case of the comprehensive methods of geology, geophysical and geochemical exploration in the prospecting practice of the eastern margin of the Lupa Goldfield. |
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