Which statement best describes Mississippi Valley-type base metal deposits?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the ASBOG Fundamentals of Geology exam. Access flashcards, multiple-choice questions, and understand key geologic principles. Prepare confidently for your exam!

Multiple Choice

Which statement best describes Mississippi Valley-type base metal deposits?

Explanation:
Mississippi Valley-type deposits are sediment-hosted carbonate ore deposits formed when basinal brines move through limestone or dolostone and precipitate zinc and lead sulfides at relatively low temperatures. The minerals that define this style are sphalerite (ZnS) and galena (PbS), which is why this pair best describes the deposits. The other options point to minerals or metal groups not characteristic of MVT: mercury and chalcopyrite reflect different, non-MVT types; gold and silver are typical of epithermal or Carlin-type/vein deposits; and quartz and calcite describe gangue minerals rather than the key ore minerals.

Mississippi Valley-type deposits are sediment-hosted carbonate ore deposits formed when basinal brines move through limestone or dolostone and precipitate zinc and lead sulfides at relatively low temperatures. The minerals that define this style are sphalerite (ZnS) and galena (PbS), which is why this pair best describes the deposits. The other options point to minerals or metal groups not characteristic of MVT: mercury and chalcopyrite reflect different, non-MVT types; gold and silver are typical of epithermal or Carlin-type/vein deposits; and quartz and calcite describe gangue minerals rather than the key ore minerals.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy