Mineral Exploration for Epithermal Gold in Northern Patagonia, Argentina

2009 ◽  
pp. 97-108
Keyword(s):  
Mineral Exploration ◽  
Epithermal Gold ◽  
Northern Patagonia

Utility of High-Altitude Infrared Spectral Data in Mineral Exploration: Application to Northern Patagonia Mountains, Arizona

2003 ◽  
Vol 98 (5) ◽  
pp. 1003-1018 ◽  
Author(s):  
Byron R. Berger ◽  
Trude V. V. King ◽  
Laurie C. Morath ◽  
Jeffrey D. Phillips
Keyword(s):  
High Altitude ◽  
Spectral Data ◽  
Mineral Exploration ◽  
Northern Patagonia ◽  
Infrared Spectral

The application of airborne geophysics to epithermal gold exploration in Eastern Misima Island, Papua New Guinea

1989 ◽  
Vol 20 (2) ◽  
pp. 85
Author(s):  
K. Logan
Keyword(s):  
Papua New Guinea ◽  
Mineral Exploration ◽  
New Guinea ◽  
Geological Mapping ◽  
Magnetic Data ◽  
Epithermal Gold ◽  
Magnetic Modelling ◽  
Port Moresby ◽  
Radiometric Data ◽  
Airborne Magnetic

Misima Island is situated 625 km east southeast of Port Moresby in Papua New Guinea. A detailed airborne magnetic and radiometric survey was carried out over the eastern portion of the island which contains the Umuna epithermal gold deposit.The purpose of the survey was to improve the understanding of surface and underlying geology and assist the regional mineral exploration of the area.In situ magnetic susceptibility measurements were taken within the survey area to determine the magnetic properties of the various Palaeocene-Miocene metasedimentary sequences and Miocene porphyritic felsic intrusives.The interpretation of the airborne magnetic data was constrained by susceptibility measurements, magnetic modelling and regional geological mapping. Computer processing included the use of reduction to the pole and pseudo gravimetric transforms.Variable density and type of vegetation cover on the island limited previous interpretations of the airborne radiometric data. The data was reprocessed using principal components analysis of the potassium and total count radiometric data.

Rois Malk epithermal gold system, Republic of Palau

1985 ◽  
Author(s):  
J.J. Rytuba ◽  
R.W. Miller ◽  
John H. Stewart
Keyword(s):  
Epithermal Gold ◽  
Republic Of Palau

Upernavik 98: reconnaissance mineral exploration in North-West Greenland

1999 ◽  
pp. 39-45 ◽  
Author(s):  
Bjørn Thomassen ◽  
Johannes Kyed ◽  
Agnete Steenfelt ◽  
Tapani Tukiainen
Keyword(s):  
Mineral Exploration ◽  
Mining Industry ◽  
Field Work ◽  
Geological Survey ◽  
Original Series ◽  
West Greenland ◽  
North West ◽  
One Year

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Thomassen, B., Kyed, J., Steenfelt, A., & Tukiainen, T. (1999). Upernavik 98: reconnaissance mineral exploration in North-West Greenland. Geology of Greenland Survey Bulletin, 183, 39-45. https://doi.org/10.34194/ggub.v183.5203 _______________ The Upernavik 98 project is a one-year project aimed at the acquisition of information on mineral occurrences and potential in North-West Greenland between Upernavik and Kap Seddon, i.e. from 72°30′ to 75°30′N (Fig. 1A). A similar project, Karrat 97, was carried out in 1997 in the Uummannaq region 70°30′–72°30′N (Steenfelt et al. 1998a). Both are joint projects between the Geological Survey of Denmark and Greenland (GEUS) and the Bureau of Minerals and Petroleum (BMP), Government of Greenland, and wholly funded by the latter. The main purpose of the projects is to attract the interest of the mining industry. The field work comprised systematic drainage sampling, reconnaissance mineral exploration and spectroradiometric measurements of rock surfaces.

Airborne geophysical surveys in Greenland – 1996 update

1997 ◽  
pp. 75-79
Author(s):  
Robert W. Stemp
Keyword(s):  
Mineral Exploration ◽  
Geological Mapping ◽  
Digital Data ◽  
Magnetic Survey ◽  
Aeromagnetic Survey ◽  
West Greenland ◽  
South West ◽  
Geophysical Surveys ◽  
The Government ◽  
Airborne Geophysical Data

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Stemp, R. W. (1997). Airborne geophysical surveys in Greenland – 1996 update. Geology of Greenland Survey Bulletin, 176, 75-79. https://doi.org/10.34194/ggub.v176.5069 _______________ Two major airborne geophysical surveys were carried out in 1996, the third year of a planned five-year electromagnetic and magnetic survey programme (project AEM Greenland 1994–1998) financed by the Government of Greenland, and the second year of an aeromagnetic survey programme (project Aeromag) jointly financed by the governments of Denmark and Greenland; both projects are managed by the Geological Survey of Denmark and Greenland (GEUS). The two 1996 surveys were: 1) Project Aeromag 1996 in South-West and southern West Greenland;2) Project AEM Greenland 1996 in South-West Greenland. All areas surveyed and planned for future surveys as of March 1997 are shown in Figure 1. Results of both the 1996 surveys were released in March 1997, as a continuation of a major effort to make high quality airborne geophysical data available for both mineral exploration and geological mapping purposes. The data acquired are included in geoscientific databases at GEUS for public use; digital data and maps may be purchased from the Survey. The main results from the 1996 surveys are described in Thorning & Stemp (1997) and Stemp (1997). Two further new airborne surveys have already been approved for data acquisition during the 1997 field season, with subsequent data release in March 1998. A summary of all surveys completed, in progress or planned since the formal inception of project AEM Greenland 1994–1998 is given in Table 1. The programme was expanded to include a separate regional aeromagnetic survey in 1995, provisionally for 1995–1996, with extension subject to annual confirmation and funding.

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