Quantitative Assessment of Orogenic Gold Resources in Finland

被引：0
|
作者：
Eilu, Pasi [1 ]
Rasilainen, Kalevi [1 ]
Karkkainen, Niilo [1 ]
Halkoaho, Tapio [2 ]
Sorjonen-Ward, Peter [2 ]
Huovinen, Irmeli [3 ]
Lepisto, Kirsi [3 ]
Niiranen, Tero [3 ]
Kontoniemi, Olavi [4 ]
机构：
[1] Geol Survey Finland, POB 96, FIN-02150 Espoo, Finland
[2] Geol Survey Finland, Kuopio, Finland
[3] Geol Survey Finland, Rovaniemi 96101, Finland
[4] Geol Survey Finland, Kokkola 67101, Finland
来源：
MINERAL RESOURCES IN A SUSTAINABLE WORLD, VOLS 1-5 | 2015年
关键词：
gold; orogenic gold; resources; evaluation; greenstone belts; Finland; DEPOSIT;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The potential metal resources in undiscovered orogenic gold deposits in the Finnish bedrock were estimated down to 1 km depth using the 3-part quantitative assessment method. A grade-tonnage model was constructed based on data from known Fennoscandian and North Australian orogenic gold deposits. Eight permissive tracts were delineated for Archaean orogenic gold deposits, 13 for Palaeoproterozoic Karelian deposits, and 11 for Palaeoproterozoic Svecofennian deposits in Finland, and the number of undiscovered deposits in each tract was estimated. The mean estimate of the number of undiscovered orogenic gold deposits is 18 for the Archaean tracts, 45 for the Karelian tracts, and 27 for the Svecofennian tracts. The median undiscovered resources in Archaean, Karelian and Svecofennian deposits are 140 t, 400 t and 210 t of gold, respectively.
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收藏
页码：87 / 90
页数：4
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