• 6 External links. Toggle the table of contents. Porphyry (geology). 44 languages. ... Journal of the Geological Society. 150 (4). London: 611–624.
  • Even Richard Sillitoe came to these deposits for confirmation of the porphyry type. Latter years were dedicated to detailed exploration and mining.
  • Geology: Porphyry deposits are associated with intrusive igneous rocks, such as granites and diorites.
  • Porphyry is a term that describes extrusive or intrusive igneous rocks with large-grained crystals embedded in a finer-grain matrix.
  • Don’t you know that porphyry can’t possibly be a word if the New York Times says it ain’t? The dictionary explains that the word porphyry comes from Middle...
  • Porphyry rock sample Porphyry is an igneous rock that contains larger crystals (phenocrysts) in a fine-grained groundmass.
  • These are somewhat the giants of the ore deposits world. As a mining interested learner, the geology of porphyry copper deposits is vital to your education.
  • Home / Knowledge Base / Geology / Deposit Types / Porphyry Deposits: The World’s Largest Source of Copper.
  • Overview: Porphyry deposits are characterized by large-tonnage and low-grades related to porphyritic intrusions.