• Thumbnail for Harzburgite
    Harzburgite, an ultramafic, igneous rock, is a variety of peridotite consisting mostly of the two minerals olivine and low-calcium (Ca) pyroxene (enstatite);...
    4 KB (506 words) - 19:24, 18 January 2024
  • Thumbnail for Mount Olympus (Cyprus)
    Mount Olympus is formed of ultramafic rock, dominantly serpentinized harzburgite which is part of the Troodos ophiolite. The Mount Olympus Ski resort...
    4 KB (370 words) - 05:10, 24 August 2023
  • Thumbnail for Peridotite
    From 40% to 90% olivine and less than 5% hornblende Harzburgite: less than 5% clinopyroxene Harzburgite makes up the bulk of the peridotite layer of ophiolites...
    32 KB (3,793 words) - 16:02, 4 April 2024
  • Thumbnail for Dunite
    formation in mantle sections is by interaction between lherzolite or harzburgite and percolating silicate melts, which dissolve orthopyroxene from the...
    6 KB (717 words) - 01:30, 26 July 2023
  • first proposed by Ted Ringwood (1962) as being 1 part basalt and 4 parts harzburgite, but later was revised to being 1 part tholeiitic basalt and 3 parts...
    13 KB (1,440 words) - 20:15, 16 March 2024
  • Thumbnail for Lherzolite
    known from the lower ultramafic part of ophiolite complexes (although harzburgite is more common in this setting), from alpine-type peridotite massifs...
    3 KB (314 words) - 19:23, 18 January 2024
  • contains quartz and alkali feldspar in characteristic angular intergrowths Harzburgite – Ultramafic mantle rock Hornblendite – Plutonic rock consisting mainly...
    14 KB (2,208 words) - 23:33, 16 April 2024
  • Thumbnail for Serpentinization
    ferromagnesian minerals in mafic and ultramafic rocks, such as dunite, harzburgite, or lherzolite. These are rocks low in silica and composed mostly of...
    30 KB (3,139 words) - 20:16, 5 January 2024
  • Thumbnail for Bushveld Igneous Complex
    thick. Lithologies vary from largely ultramafic peridotite, chromitite, harzburgite, and bronzitite in the lower sections to mafic norite, anorthosite, and...
    55 KB (6,207 words) - 19:28, 12 May 2024
  • Thumbnail for Internal structure of Earth
    a chemical discontinuity between ultramafic cumulates and tectonized harzburgites, which has been observed from deep parts of the oceanic crust that have...
    32 KB (3,140 words) - 20:39, 15 July 2024
  • Thumbnail for Diamond
    kimberlite eruption samples them. Host rocks in a mantle keel include harzburgite and lherzolite, two type of peridotite. The most dominant rock type in...
    139 KB (14,989 words) - 03:22, 16 July 2024
  • Thumbnail for Diogenite
    (2010). "Diogenites as polymict breccias composed of orthopyroxenite and harzburgite". Meteoritics and Planetary Science. 45 (5): 850–872. Bibcode:2010M&PS...
    3 KB (179 words) - 17:07, 2 February 2024
  • Thumbnail for Craton
    peridotite nodules are pieces of mantle rock modified by partial melting. Harzburgite peridotites represent the crystalline residues after extraction of melts...
    23 KB (2,569 words) - 05:11, 19 May 2024
  • Thumbnail for Teschenite
    Napoleonite Dunite Essexite Foidolite Gabbro Granite Granodiorite Granophyre Harzburgite Hornblendite Hyaloclastite Icelandite Ignimbrite Ijolite Kimberlite Komatiite...
    7 KB (547 words) - 05:09, 26 June 2024
  • Thumbnail for Diamond inclusions
    inclusions in diamond contain less Cr2O3 whereas peridotite (lherzolite and harzburgite) garnet inclusions have less CaO. Eclogite and peridotite are the two...
    23 KB (2,177 words) - 07:56, 15 April 2024
  • Thumbnail for Raduša chromium mine
    by dunites and harzburgites, where the most significant ore bodies are found. The central zone of the massif is composed of harzburgites and lherzolites...
    4 KB (358 words) - 00:35, 19 June 2023
  • Thumbnail for Ophiolite
    minerals that settled out from a magma chamber. Tectonized peridotite: harzburgite/lherzolite-rich mantle rock. A Geological Society of America Penrose...
    32 KB (3,876 words) - 01:55, 27 March 2024
  • structures Serpentinite with relict mineral structures suggesting parental harzburgite (described as massive, homogeneous with thin dunite layers) Underlying...
    6 KB (651 words) - 06:25, 13 August 2023
  • Thumbnail for Waw an Namus
    and occasionally melilite and sodalite. The rocks contain xenoliths of harzburgite, lherzolite and peridotite. Sulfur occurs within the crater of the scoria...
    23 KB (2,510 words) - 15:17, 3 February 2024
  • ; Farley K. A.; Turner G. (1998). "Multiple fluid pulses in a Samoan harzburgite". Chemical Geology. 147 (1–2): 99–114. Bibcode:1998ChGeo.147...99B. doi:10...
    21 KB (2,408 words) - 19:03, 1 April 2024
  • Thumbnail for Lunar Crater volcanic field
    Inclusions and nodules are formed by clinopyroxenite, dunite, gabbro, harzburgite, lherzolite, peridotite, spinel and wehrlite Formerly it was dated to...
    42 KB (4,798 words) - 11:53, 3 December 2023
  • Thumbnail for HED meteorite
    (2010). "Diogenites as polymict breccias composed of orthopyroxenite and harzburgite". Meteoritics and Planetary Science. 45 (5): 850–872. Bibcode:2010M&PS...
    8 KB (787 words) - 08:25, 29 November 2023
  • Thumbnail for Jormua Ophiolite
    exposed in the ophiolite are the peridotite varieties of lherzolite, harzburgite and dunite. Peltonen, P., & Kontinen, A. (2004). The Jormua Ophiolite:...
    3 KB (305 words) - 07:11, 11 June 2023
  • County, Massachusetts, US Fayalite: Horta, Fayal Island, Azores, Portugal Harzburgite: Bad Harzburg, Germany Icelandite: Thingmuli (Þingmúli), Iceland Ijolite:...
    9 KB (696 words) - 20:08, 26 January 2024
  • Thumbnail for Mariana mud volcanoes
    the overriding Philippine plate. The Mariana fore-arc peridotite has a harzburgite composition, thus it contains mostly olivine and orthopyroxene (enstatite)...
    16 KB (1,687 words) - 01:47, 9 July 2024
  • Thumbnail for Lost City Hydrothermal Field
    pyroxene with very little silica content. Peridotite (primarily spinel harzburgite) minerals undergo serpentinization and form magnetite and serpentine...
    34 KB (3,778 words) - 02:15, 9 January 2024
  • Thumbnail for List of ophiolites
    and FARID CHEMALE-JÚNIOR. 2003. Mid amphibolite facies metamorphism of harzburgites in the Neoproterozoic Cerro Mantiqueiras Ophiolite, southernmost Brazil...
    13 KB (1,337 words) - 09:26, 31 July 2023
  • Tanganyika 3.328 6.64 7.30 7.46 7.71 Jadeite Burma 3.331 8.45 — 8.69 8.78 Harzburgite Bushveld Complex 3.369 6.9 7.74 7.81 7.95 Eclogite Kimberley 3.376 7...
    10 KB (668 words) - 21:51, 18 May 2024
  • Elovskoe deposit were formed by conversion of ultramafites of Kola dunite-harzburgite massif. Ore field is stretched meridionally as a crescent-shaped lode...
    7 KB (532 words) - 10:51, 5 October 2022
  • Thumbnail for Ultrapotassic igneous rocks
    element (K, Ba, Cs, Rb) enrichment in sources enriched peridotite (variety harzburgite), especially in potassium pyroxene and phlogopite-rich volumes within...
    5 KB (529 words) - 12:28, 31 December 2023