ILMENITE AS A DIAMOND INDICATOR MINERAL IN THE SIBERIAN CRATON: A TOOL TO PREDICT DIAMOND POTENTIAL

2014 ◽  
Vol 109 (3) ◽  
pp. 775-783 ◽  
Author(s):  
L. Carmody ◽  
L. A. Taylor ◽  
K. G. Thaisen ◽  
N. Tychkov ◽  
R. J. Bodnar ◽  
...  
Keyword(s):  
Siberian Craton ◽  
Indicator Mineral ◽  
Diamond Potential

scholarly journals Investigating the diamond potential of southern West Greenland

2004 ◽  
Vol 4 ◽  
pp. 69-72 ◽  
Author(s):  
Sven Monrad Jensen ◽  
Karsten Secher
Keyword(s):  
Structural Control ◽  
Mineral Chemistry ◽  
Mantle Xenoliths ◽  
Comprehensive Overview ◽  
West Greenland ◽  
Large Samples ◽  
Indicator Mineral ◽  
The Government ◽  
Indicator Minerals ◽  
Diamond Potential

Southern West Greenland hosts a province of ultramafic alkaline rocks, including swarms of dykes traditionally described as kimberlites and lamproites (Larsen 1991; Jensen et al. 2002). Since the mid-1990s, commercial diamond exploration has been focused on the Sarfartoq region and the region south-east of Maniitsoq (Fig. 1), and has resulted in numerous reports of diamond-favourable indicator minerals from till sampling, finds of kimberlitic dykes, and recovery of diamonds from kimberlitic rocks. A new digital compilation of company data released from confidential status (Jensen et al. 2003a) presents a comprehensive overview of exploration activities and results that have emerged since the Survey’s first compilation of occurrences of kimberlitic and related rocks (Larsen 1991). The new compilation in a GIS (geographic information system) environment allows for refined assessment of the distribution, structural control and possible spatial and petrogenetic relationships that characterise the kimberlitic occurrences. In 2003, the Geological Survey of Denmark and Greenland (GEUS) and the Government of Greenland’s Bureau of Minerals and Petroleum (BMP) went further than has been customary in investigating the economic potential of specific sites. Four areas were temporarily closed to application for exploration licences, pending sampling and testing for diamond content of large samples of more than one tonne each from significant kimberlitic occurrences. Additional characterisation and research initiated on these and other occurrences include magnetic mapping, detailed petrography and studies of mantle xenoliths, as well as indicator mineral chemistry. An extensive programme to determine the ages of kimberlitic and related rocks was also initiated in 2003.

Placer diamond potential of the siberian craton: possible sources and ages

2011 ◽  
Vol 53 (6) ◽  
pp. 474-477 ◽  
Author(s):  
V. P. Afanasiev ◽  
N. P. Pokhilenko ◽  
S. S. Lobanov
Keyword(s):  
Siberian Craton ◽  
Diamond Potential
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