|
|
BREAKTHROUGH IN MINERAL EXPLORATION USING GEOGAS SURVEY IN THE BASIN AREA OF NORTHERN QILIAN REGION AND ITS SIGNIFICANCE |
WANG Ming-qi1, GAO Yu-yan1, ZHANG De-en1, REN Tian-xiang2, LIU Ying-han2 |
1. China University of Geosciences, Beijing 100083, China;
2. Institute of Geophysical and Geochemical Exploration, Langfang 065000, China |
|
|
Abstract Northern Qilian region, in which more than two hundred ore deposits or spots, including Baiyin, have been discovered, is an important VMS mineralization province in China. Except for Baiyin, however, no remarkable breakthrough has been made in exploration of large deposits. This is attributed to the fact that these ore deposits or spots occur in outcrop areas around the basin and no effective technique could be used to explore the covered area. After the geogas survey was adopted in ore exploration in Heihe basin in 1998, Laidoutan and Bailiugou orebodies were found under thick overburden. These results indicate that geogas survey, as a useful means for VMS deposit exploration, can play an important role in mineral exploration in the covered basin, and that Heihe basin is likely to have potential in finding a superlarge Baiyin-type VMS deposit. The authors suggest that further geogas survey should cover the whole basin to delineate the prospect areas in combination with other techniques such as geophysical exploration and soil mercury survey. It is hoped that the discovery of VMS deposits in Heihe basin will lead to a series of considerable breakthroughs in looking for VMS deposits in other basins such as Subei, Menyuan and Tianzhu in Northern Qilian region.
|
Received: 24 May 2005
Published: 24 February 2006
|
|
|
|
|
[1] |
Jian LI, Liang GUO, Gang-Yi XIAO, Zhi-Qiang LIU, Ming XU, Jiu-Qiang JIN, Zhi-Bo WANG, Mao-Sheng DENG, Bing LI. The advantages of AS350B3 helicopter in aerogeophysical survey in the high mountain area[J]. Geophysical and Geochemical Exploration, 2018, 42(1): 192-198. |
[2] |
HE Hai-Yang, SHEN Zheng-Xin, AN Zheng-Wei, QIU Chong-Tao. Automatic clipping of maps and producing of legends based on secondary development of MapGIS[J]. Geophysical and Geochemical Exploration, 2017, 41(3): 550-555. |
|
|
|
|