Chança River valley VMS cross section uncut video footage


Last week I had the opportunity to document the Chança River valley VMS deposit cross section. This small outcropping deposit is located north of the old (now abandoned) São Domingos mine – Iberian Pyrite Belt. The 5 min (uncut, 720p) video can be seen here (yes, I need to edit it as soon as I have … Continue reading Chança River valley VMS cross section uncut video footage

The Portuguese mineral industry – update


Portugal has a long tradition in the mining industry (in our European heartland and, during our long and rich History, in other territories in South America, Africa, Asia). Romans mined (gold and other metals, natural stone) in what is now the Portuguese territory and before them the Celts and Phoenicians. The  Portuguese mining industry is now built around three main … Continue reading The Portuguese mineral industry – update

USGS – Volcanogenic Massive Sulfide Occurrence Model


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

Mineral deposits of Portugal


Portugal has been a mining country for more than 2.000 years. Mines and deposits worked in Roman times (e.g. Aljustrel in the Iberian Pyrite Belt, Penedono in the north) are still being exploited, explored or being considered for exploitation. Yet, despite its long mining tradition, Portugal has a good potential for new deposits – Neves … Continue reading Mineral deposits of Portugal