Porco caldera is a caldera in Bolivia which contains a major deposit of lead, silver, tin, and zinc ore. This caldera was formed by a volcanic eruption 12 million years ago in the Bolivian Cordillera Oriental. Subsequent to the caldera collapse, volcanic intrusions occurred as many as 3 million years after the caldera formation. Ore deposits form veins within the caldera infill. These ores were mined for silver as early as the Inca period; more recently, Porco is the site of zinc mining.
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| - Porco (kaldera) (in)
- Porco (caldera) (en)
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| - Porco caldera is a caldera in Bolivia which contains a major deposit of lead, silver, tin, and zinc ore. This caldera was formed by a volcanic eruption 12 million years ago in the Bolivian Cordillera Oriental. Subsequent to the caldera collapse, volcanic intrusions occurred as many as 3 million years after the caldera formation. Ore deposits form veins within the caldera infill. These ores were mined for silver as early as the Inca period; more recently, Porco is the site of zinc mining. (en)
- Kaldera Porco merupakan kaldera di Bolivia yang mengandung deposit utama bijih timah, perak, timah, dan seng. Kaldera ini dibentuk oleh letusan gunung berapi 12 juta tahun yang lalu di , Bolivia. Setelah kaldera runtuh, intrusi vulkanik terjadi sebanyak 3 juta tahun setelah pembentukan kaldera. Deposit bijih membentuk urat di dalam kaldera pengisi. Bijih ini ditambang untuk mendapatkan perak sejak zaman Inca; baru-baru ini, Porco adalah situs penambangan seng. (in)
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| - Porco caldera is a caldera in Bolivia which contains a major deposit of lead, silver, tin, and zinc ore. This caldera was formed by a volcanic eruption 12 million years ago in the Bolivian Cordillera Oriental. Subsequent to the caldera collapse, volcanic intrusions occurred as many as 3 million years after the caldera formation. Ore deposits form veins within the caldera infill. These ores were mined for silver as early as the Inca period; more recently, Porco is the site of zinc mining. (en)
- Kaldera Porco merupakan kaldera di Bolivia yang mengandung deposit utama bijih timah, perak, timah, dan seng. Kaldera ini dibentuk oleh letusan gunung berapi 12 juta tahun yang lalu di , Bolivia. Setelah kaldera runtuh, intrusi vulkanik terjadi sebanyak 3 juta tahun setelah pembentukan kaldera. Deposit bijih membentuk urat di dalam kaldera pengisi. Bijih ini ditambang untuk mendapatkan perak sejak zaman Inca; baru-baru ini, Porco adalah situs penambangan seng. (in)
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