• Thumbnail for Gabbro
    Gabbro (/ˈɡæb.roʊ/) is a phaneritic (coarse-grained), mafic intrusive igneous rock formed from the slow cooling of magnesium-rich and iron-rich magma into...
    19 KB (2,320 words) - 12:08, 23 January 2024
  • Hornblende gabbro is an intrusive rock similar to normal gabbro (gabbro sensu stricto). In the QAPF classification it falls within the gabbro field, in...
    2 KB (179 words) - 14:10, 27 July 2023
  • Quartz gabbro is an intrusive rock with a composition intermediate between gabbro and tonalite. It is defined in the QAPF classification as coarse-grained...
    1 KB (149 words) - 16:11, 14 January 2024
  • Thumbnail for Roosevelt Gabbros
    Mountain Gabbro Group, the other being the Glen Mountain Layered Complex. The Roosevelt Gabbros are generally characterized as biotite gabbros, which form...
    11 KB (1,212 words) - 16:15, 15 October 2021
  • Nepheline-bearing gabbro is an intrusive rock with a composition intermediate between gabbro and nepheline gabbro. It is defined in the QAPF classification...
    1 KB (155 words) - 14:12, 27 July 2023
  • Thumbnail for Duluth Complex
    Duluth Complex (redirect from Duluth gabbro)
    gabbro, but with significant amounts of anorthosite and other related granitic rocks. The Duluth Complex is one of the largest intrusions of gabbro on...
    24 KB (2,457 words) - 23:30, 10 January 2024
  • Baltimore Gabbro Complex is a hypersthene gabbro with subordinate amounts of olivine gabbro, norite, anorthositic gabbro, and pyroxenite. Igneous minerals...
    3 KB (268 words) - 13:20, 1 June 2018
  • Thumbnail for Farmington Gabbro
    is the Farmington Gabbro, located in the Mocksville Complex. The Mocksville Complex consist of metamorphosed/unmetamorphosed gabbros, pyroxenites, hornblendites...
    8 KB (863 words) - 22:26, 2 April 2024
  • Thumbnail for Concord Gabbro-Syenite Complex
    The Concord Gabbro-Syenite Complex is a paleozoic pluton located in North Carolina. The complex is mainly composed of gabbro and syenite and is of the...
    7 KB (742 words) - 10:22, 20 December 2023
  • Saratoga Table (redirect from Gabbro Crest)
    Bluff, Mount Hummer, Mount Hook, Ronald Rock, Skidmore Cliff, Vigen Cliffs, Gabbro Crest, Sheriff Cliffs, Fierle Peak, Dyrdal Peak, Mount Stephens, Magnetite...
    10 KB (1,901 words) - 13:43, 23 March 2024