The USGS is an invaluable source of knowledge and information on economic geology (and on most Geology branches, in fact). I have just come across one of their publications; in this case, on VMS deposits – an important source of precious and basic metals (in the world and in Portugal – in our case, for over two … Continue reading USGS – Volcanogenic Massive Sulfide Occurrence Model
SAMARCO DAM FAILURE IN MARIANA (MINAS GERAIS, BRAZIL) – Latest information
There is not a final casualty number arising from the failure of two tailings’ dams of the Alegria iron mine. The mine, owned by SAMARCO – a BHP and VALE joint venture, is located in the region of Mariana – Ouro Preto (Minas Gerais, Brazil). Workers at the site are reported dead or missing (some sources refer … Continue reading SAMARCO DAM FAILURE IN MARIANA (MINAS GERAIS, BRAZIL) – Latest information
Mineral commodities 2013 total mined volumes and values, average prices
Diamonds mined in 2013 total 14 bn USD. How do they compare with other mineral commodities? Rather than using somebody else’s compilations, I prefer to check values published by (commodity) specialised international organisations or public companies (OPEC, World Gold Council, KPCS, USGS, etc.). After some work, I have arrived to the estimates presented in the table … Continue reading Mineral commodities 2013 total mined volumes and values, average prices
Avrupa and Lowell Copper sign option agreement on Alvito Project (iron-oxide-copper-gold, southern Portugal)
June 22, 2015 Avrupa Minerals Ltd. (AVU:TSXV) and Lowell Copper Ltd. (JDL:TSXV) have signed an option agreement to explore the Alvito iron-oxide-copper-gold (“IOCG”) project in southern Portugal. Lowell Copper can earn up to an 80% interest in the project by incurring total exploration expenditures on the project of US$4.4 million and completing a pre-feasibility study … Continue reading Avrupa and Lowell Copper sign option agreement on Alvito Project (iron-oxide-copper-gold, southern Portugal)
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