• Thumbnail for Porphyry (geology)
    generally aphanitic matrix or groundmass. In its non-geologic, traditional use, the term porphyry usually refers to the purple-red form of this stone,...
    26 KB (3,021 words) - 14:36, 2 June 2024
  • up porphyry in Wiktionary, the free dictionary. Porphyry (/ˈpɔːrfɪri/; Greek: Πορφύριος, Porphyrios "purple-clad") may refer to: Porphyry (geology), an...
    3 KB (368 words) - 14:58, 2 December 2023
  • Thumbnail for Porphyry copper deposit
    Porphyry copper deposits are copper ore bodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers...
    24 KB (2,801 words) - 00:09, 4 March 2024
  • Thumbnail for Fault (geology)
    new model for the optimal structural context for giant porphyry copper deposit formation". Geology. 49 (5): 597–601. Bibcode:2021Geo....49..597P. doi:10...
    32 KB (3,483 words) - 08:04, 22 April 2024
  • lithosphere Porphyry (geology) – Movement of Earth's lithosphere Proterozoic – Geologic eon, 2500–539 million years ago Regression (geology) – Geologic event...
    6 KB (1,243 words) - 07:12, 6 June 2024
  • Thumbnail for Quartz-porphyry
    quartz-porphyries are equally well described as granite-porphyries. University of Salzburg, quartz-porphyry Geology of the Island of Arran, Quartz Porphyry  One...
    8 KB (1,086 words) - 23:25, 18 December 2023
  • Johnson Granite Porphyry is found in Tuolumne Meadows, Yosemite National Park. Johnson Granite Porphyry was named for Johnson Peak, the highest mountain...
    7 KB (445 words) - 22:20, 9 June 2024
  • Arvidsjaur porphyry (Swedish: Arvidsjaurporfyr) is a group of igneous rocks of intermediate to felsic composition found near Arvidsjaur in northern Sweden...
    1 KB (110 words) - 19:26, 9 January 2021
  • Thumbnail for Spanish Peaks
    Spanish Peaks (category Stocks (geology))
    composed of a granodiorite porphyry surrounded by a more aerially-extensive exposure of granite porphyry. The granite porphyry represents the evolved upper...
    5 KB (460 words) - 19:29, 1 November 2023
  • Thumbnail for Polymetallic replacement deposit
    Freeman pp. 77-79 ISBN 0-7167-1456-6 Sillitoe, Richard H. "Porphyry copper systems." Economic Geology 105.1 (2010): 3-41. Ray, G., Webster, I., Megaw, P., McGlasson...
    8 KB (1,000 words) - 07:32, 17 February 2024