Hello, Welcome to the Crushing Machinery official website!

[email protected] Inquiry Online

Projects

  1. Home
  2. Crushing Plant
  3. chromite is formed by which magmatic process

chromite is formed by which magmatic process

Abstract. Most magmatic chromite deposits, particularly those in stratiform layered ultramafic-mafic intrusions, are interpreted to have formed by processes that decrease the solubility of chromite. However, such models have difficulty in explaining the great thicknesses (up to 10 m) of chromite mineralization at Inyala and Railway Block (Zimbabwe), Ipueira-Medrado (Brazil), Uitkomst (South Africa), and Sukinda …

We believes the value of brand, which originates from not only excellent products and solutions, but also considerate pre-sales & after-sales technical services. After the sales, we will also have a 24-hour online after-sales service team to serve you. please be relief, Our service will make you satisfied.

Inquiry Online Leave A Message
  • chromitein komatiites, 1.magmaticcontrols on

    chromitein komatiites, 1.magmaticcontrols on

    In the case of a cumulate formed from a liquid which was close to chromite saturation, the rock could start with no cumulus chromite, but chromite could begin to crystallize from liquid trapped in the pore space once this liquid has cooled far enough to intersect the chromite saturation curve. A rock formed in this way would have a composition plotting along the olivine–liquid mixing line

    Read More
  • the significance of magmatic erosion forbifurcation of

    the significance of magmatic erosion forbifurcation of

    Nov 01, 2017 · Our most important aim is to demonstrate that the field relationships provide convincing evidence for the crucial role of magmatic erosion in the origin of the principal type of UG1 chromitite bifurcations, a process seldom considered as a realistic agent in the formation of igneous layering (e.g. Naslund and McBirney, 1996, Namur et al., 2015)

    Read More
  • magmatic deposits - economic geology

    magmatic deposits - economic geology

    May 17, 2016 · CHROMITE DEPOSITS : Formed as the end products of the separation of solid phases from a liquid and their accumulation in chromite rich layers. Formation of chromite rich layers takes place by fractional crystallization and gravitational settings, Formed as cumulate layers at the base. two types of chromite deposits : stratiform chromite deposits podiform chromite deposits

    Read More
  • magmatic deposits- earth science

    magmatic deposits- earth science

    The processes involved in the formation of chromite layers are fractional crystallization and gravity settling. Chromite crystallizes into mineral grains within the silicate liquid and, because they are heavier than the liquid, they sink to form a cummulate layer at the base of the intrusive

    Read More
  • the processes offormation of mineral deposits aregrouped

    the processes offormation of mineral deposits aregrouped

    This type of magmatic concentration is often due to the gravitative crystallization of early formed heavy minerals, e.g., Bushveld chromite deposits (South Africa), chromite deposits of Keonjhar (Orissa)

    Read More
  • mineral deposit - magmatic cumulates | britannica

    mineral deposit - magmatic cumulates | britannica

    Opinion still remains open, but most geologists now agree that in-place crystallization and density currents are more important in the formation of magmatic cumulates than density sinking. Three oxide ore minerals form magmatic cumulates: chromite, magnetite, and ilmenite. The world’s largest chromite deposits are all magmatic …

    Read More
  • magmatic deposits - earth science

    magmatic deposits - earth science

    The processes involved in the formation of chromite layers are fractional crystallization and gravity settling. Chromite crystallizes into mineral grains within the silicate liquid and, because they are heavier than the liquid, they sink to form a cummulate layer at the base of the intrusive

    Read More
  • chromite in komatiites, 1. magmatic controls on

    chromite in komatiites, 1. magmatic controls on

    Oct 01, 1998 · In the case of a cumulate formed from a liquid which was close to chromite saturation, the rock could start with no cumulus chromite, but chromite could begin to crystallize from liquid trapped in the pore space once this liquid has cooled far enough to intersect the chromite saturation curve. A rock formed in this way would have a composition plotting along the olivine–liquid mixing line

    Read More
  • genesis of chromite deposits by dynamic upgrading of fe

    genesis of chromite deposits by dynamic upgrading of fe

    Abstract. Most magmatic chromite deposits, particularly those in stratiform layered ultramafic-mafic intrusions, are interpreted to have formed by processes that decrease the solubility of chromite. However, such models have difficulty in explaining the great thicknesses (up to 10 m) of chromite mineralization at Inyala and Railway Block (Zimbabwe), Ipueira-Medrado (Brazil), Uitkomst (South Africa), and Sukinda (India), and the very great (up to 100 m) thicknesses of chromitite …

    Read More
  • magmatic deposits - economic geology

    magmatic deposits - economic geology

    May 17, 2016 · CHROMITE DEPOSITS : Formed as the end products of the separation of solid phases from a liquid and their accumulation in chromite rich layers. Formation of chromite rich layers takes place by fractional crystallization and gravitational settings, Formed as cumulate layers at the base. two types of chromite deposits : stratiform chromite deposits podiform chromite deposits

    Read More
  • the significance of magmatic erosion for bifurcation of

    the significance of magmatic erosion for bifurcation of

    Nov 01, 2017 · Our most important aim is to demonstrate that the field relationships provide convincing evidence for the crucial role of magmatic erosion in the origin of the principal type of UG1 chromitite bifurcations, a process seldom considered as a realistic agent in the formation of igneous layering (e.g. Naslund and McBirney, 1996, Namur et al., 2015)

    Read More
  • the processes of formation of mineral deposits are grouped

    the processes of formation of mineral deposits are grouped

    This type of magmatic concentration is often due to the gravitative crystallization of early formed heavy minerals, e.g., Bushveld chromite deposits (South Africa), chromite deposits of Keonjhar (Orissa)

    Read More
  • secular changes in lava/magma channelization and the

    secular changes in lava/magma channelization and the

    If magmatic Fe-Ni-Cu-(PGE) deposits can form by partial melting of Fe sulfide-rich sediments underneath lava/magma channels and dynamic upgrading of sulfide xenomelts by reaction with the magma (the prevailing model), then magmatic chromite deposits can form by partial melting of Fe oxide-rich sediments underneath lava/magma channels and dynamic upgrading of oxide xenocrysts by reaction …

    Read More
  • reading: ore genesis| geology - lumen learning

    reading: ore genesis| geology - lumen learning

    Chromite and magnetite are ore minerals that form in this way. Liquid immiscibility: sulfide ores containing copper, nickel or platinum may form from this process. As a magma changes, parts of it may separate from the main body of magma. Two liquids that will not mix are called immiscible; oil …

    Read More
  • deposition mechanisms of magmatic sulphide liquids

    deposition mechanisms of magmatic sulphide liquids

    These small droplets are interpreted to have formed by segregation of immiscible sulphide liquid upon cooling of a komatiitic magma flowing in a magma conduit or channel. These newly formed droplets were trapped in situ by the crystallizing framework of olivine and/or chromite

    Read More