Mineral deposit Magmatic cumulates Britannica

Mineral deposit Mineral deposit Magmatic cumulates: Magmatic segregation is a general term referring to any process by which one or more minerals become locally concentrated (segregated) during the cooling and crystallization of a magma. Rocks formed as a result of magmatic segregation are called magmatic cumulates. While a magma may start as a homogeneous liquid, magmatic segregation

Magmatic segregation geology Britannica

Other articles where Magmatic segregation is discussed: mineral deposit: Magmatic cumulates: Magmatic segregation is a general term referring to any process by which one or more minerals become locally concentrated (segregated) during the cooling and crystallization of a magma. Rocks formed as a result of magmatic segregation are called magmatic cumulates.

Magmatic Segregation Mining Fundamentals

When the mineral content present in magma crystallizes, it sinks down and settles at the bottom of the magma chamber as it is denser than the magma. Some of the commonly formed mineral deposits formed due to magmatic segregation are iron, granite, aluminum, diamond, chromite, and platinum.

Ore deposits produced by magmatic segregation, with

Type deposits of iron, chromium, aluminum, and diamond that have been formed by magmatic segregation are discussed, and conditions favorable for the formation of deposits of gold, silver, lead, zinc, tin, and other rare metals as a result of extreme differentiation are given. In conclusion the problem of differentiation of rock magmas

Magmatic Segregation Deposits I.pdf 6.0 MAGMATIC

6.0 MAGMATIC CONCENTRATION DEPOSITS Definition mineral deposits that formed by direct crystallization and concentration from the magma. Characteristics: 1) Occurs within or very near the magma or intrusive from which deposit was derived. 2) Simple mineralogy, and products yielded are not numerous. 3) May occur as strata-like segregations, as dissemination and as vein-like injection.

MAGMATIC DEPOSITS Earth Sci

Magmatic Base Metals Deposits Chrome Nickel/Copper Platinum Group Metals (PGM) Magmatic Deposits are so named because they are genetically linked with the evolution of magmas emplaced into the crust (either continental or oceanic) and are spatially found within rock types derived from the crystallization of such magmas.

Ore deposits related to magmatic activity

Ore Deposits Related to Magmatic Activity. Certain accessory or uncommon constituents of magmas become enriched into bodies of sufficient size and richness to constitute valuable mineral deposits eg. Chromite and platinum. Magmatic ore deposits are characterized by their close relationship with intermediate or deep seated intrusive igneous rocks.

(PDF) Economic Geology Magmatic ore deposits_2

Jan 10, 2017 Mineral deposit models provide a framework for research in economic geology as well as a basis for mineral explo- ration and resource assessment. Models of the process of magmatic segregation

magmatic segregation mineral deposits

Magmatic Segregation Mining Fundamentals. Some of the commonly formed mineral deposits formed due to magmatic segregation are iron, granite, aluminum, diamond, chromite, and platinum The different temperatures and basicity zones that prevail in magma cause the concentration of the ore, thereby resulting in the segregation of various minerals

Ore deposits produced by magmatic segregation, with

Type deposits of iron, chromium, aluminum, and diamond that have been formed by magmatic segregation are discussed, and conditions favorable for the formation of deposits of gold, silver, lead, zinc, tin, and other rare metals as a result of extreme differentiation are given. In conclusion the problem of differentiation of rock magmas

Magmatic Solidus Geological Services

Magmatic mineral deposits are formed by the segregation of minerals or metals through magmatic processes such as gravity settling, or flow differentiation.These deposits form deep in the earth crust in large igneous intrusions. Historically some magmatic deposits have formed on the earth’s surface within ultramafic and some mafic lava flows.

Magmatic Ore Deposits BU

podiform deposits. ŁKind of deposits ŁAlmost all chromite deposits are magmatic segregation in ultrabasic rocks. Chromite occurs in the host rock as masses, lenses, and dissemination. ŁAll economic deposits of chromite are in ultrabasicrocks and are either stratiform in layered intrusions (98% of world™s chromite resources) or podiform

What is a Mineral Deposit by Definition

Oct 04, 2016 Sedimentary deposits. Magmatic Segregation. Magmatic Segregation, or separation and concentration of the ore from the cooling, crystallizing rock magma, has taken place where the magma has pushed its way upward and formed large masses

Magmatic hydrothermal deposits SpringerLink

In the previous chapter we have described some of the mineral deposits that have formed by magmatic activity, often by segregation within the magma chamber itself. In this chapter we turn our attention to other magmatic activity which results in important mineral deposits.

Magmatic Ore Deposits in Layered Intrusions—Descriptive

Layered, ultramafic to mafic intrusions are uncommon in the geologic record, but host magmatic ore deposits containing most of the world’s economic concentrations of platinum-group elements (PGE) (figs. 1 and 2). These deposits are mined primarily for their platinum, palladium, and

(PDF) Economic Geology Magmatic ore deposits_2

Mineral deposit models provide a framework for research in economic geology as well as a basis for mineral explo- ration and resource assessment. Models of the process of magmatic segregation

Magmatic deposits SpringerLink

Abstract. Some ore deposits have such an intimate association with igneous rocks that a common heritage can be inferred. In many cases it can be confirmed by a study of field relationships, from ore textures and from the results of experimental petrology that the ores have segregated during the crystallization of a magma.

Ore Deposits Related to Magmatic Activity

Ore Deposits Related to Magmatic Activity. Certain accessory or uncommon constituents of magmas become enriched into bodies of sufficient size and richness to constitute valuable mineral deposits eg. Chromite and platinum. Magmatic ore deposits are characterized by their close relationship with intermediate or deep seated intrusive igneous rocks.

Mineral Resources

The metallic mineral deposits can be divided into placers and lodes. The Kemuk deposit, located sixteen miles west of Koliganek, is a magmatic segregation deposit of iron and titanium hosted in a pyroxenite; an inferred resource of 2.4 billion tons is present. The Kemuk deposit has potential to contain platinum group metals.

Mining and Exploration for Mineral Resources

The mineral deposits formed by early magmatic segregation are generally lenticular and of relatively small size. Commonly, they are disconnected pod shaped lenses, stringers, and bunches. Less commonly and more importantly, they form layers in the host rock. The most famous example of this type of deposit is the Bushveld Igneous Complex in South

Geo 101 Tarbuck/Lutgens CH. 23 Flashcards Quizlet

Which of the following minerals does not form as a result of magmatic segregation? Diamond _____ is a high-pressure ultramafic rock, often containing diamonds, that is carried to the surface in tapered volcanic pipes. the creation of important mineral deposits by concentrating minor amounts of metals that are scattered through unweathered

magmatic deposits economic geology

May 17, 2016 magmatic deposits economic geology 1. magmatic deposits in reference to india 2. what are magmatic deposits? magmatic deposits are accumulations of magmatic minerals. they are characterised by their close relationships with intermediate or deep seated intrusive igneous rocks. they constitute either the whole igneous mass or a part of it or may form offset bodies. they are magmatic

CHAPTER 9

9.2.1 Mineral Associations and Textures The few, isolated (although economically important) layered intrusions that can be regarded as chromium deposits occur in tectonically stable environ­ ments. The layers ofthe intrusive complexes can be regarded as magmatic "strata," which maybe ofconsiderablelateral extent. Within these, the chro­

Magmatic Ore Deposits BU

podiform deposits. ŁKind of deposits ŁAlmost all chromite deposits are magmatic segregation in ultrabasic rocks. Chromite occurs in the host rock as masses, lenses, and dissemination. ŁAll economic deposits of chromite are in ultrabasicrocks and are either stratiform in layered intrusions (98% of world™s chromite resources) or podiform

magmatic-segregation deposit Encyclopedia

Feb 23, 2021 magmatic-segregation deposit Concentration of particular minerals in different parts of a magma chamber during consolidation, by gravity settling, filter pressing, flow, fractional crystallization, liquid immiscibility, or gas transference; for example, the accumulation of heavy minerals such as chromite and magnetite by gravity settling.

(PDF) Economic Geology Magmatic ore deposits_2

Mineral deposit models provide a framework for research in economic geology as well as a basis for mineral explo- ration and resource assessment. Models of the process of magmatic segregation

Magmatic ore deposits (Chapter 2) Ore Deposit Geology

Magmatic ore deposits, also known as orthomagmatic ore deposits, are deposits within igneous rocks or along their contacts in which ore minerals crystallised from a melt or were transported in a melt. Ore deposits that form in and around igneous rock units as a result of mineral precipitation from aqueous solutions or hydrothermal fluids are hydrothermal ore deposits.

The mineral system approach applied to magmatic Ni–Cu–PGE

Jul 01, 2016 Magmatic Ni–Cu–PGE sulphide deposits are formed by the segregation and accumulation of immiscible sulphide liquid from mafic or ultramafic magmas. The mineral system approach considers the origin of these deposits in the framework of lithospheric-scale processes from the time-honoured perspective of source, fluids, transport and traps.

(PDF) The relative roles of magmatic segregation, volcanic

The relative roles of magmatic segregation, volcanic exhalation and regional metamorphism in the generation of volcanic associated nickel ores of Western Australia May 1979 The Canadian

The processes of formation of mineral deposits are grouped

The magmatic deposits are classified into two major groups, viz., (i) Early magmatic deposit, and (ii) Late magmatic deposit. The early magmatic deposits are believed to have been formed simul­taneously with the host-rock, whereas the late magmatic deposits are formed towards the close of the magmatic deposits.

Economic geology Magmatic ore deposits_1

Jan 10, 2017 Economic geology Magmatic ore deposits_1 1. Prepared by: Dr. Abdel Monem Soltan Ph.D. Ain Shams University, Egypt 2. Economic Geology Principles and Practice Metals, Minerals, Coal and Hydrocarbons Introduction to Formation and Sustainable Exploitation of Mineral Deposits, Walter L. Pohl ©2011 Walter L. Pohl. Published 2011 by Blackwell Publishing Ltd.

Mineral Resources

The metallic mineral deposits can be divided into placers and lodes. The Kemuk deposit, located sixteen miles west of Koliganek, is a magmatic segregation deposit of iron and titanium hosted in a pyroxenite; an inferred resource of 2.4 billion tons is present. The Kemuk deposit has potential to contain platinum group metals.

Fractional crystallization (geology) Wikipedia

Igneous rocks. Fractional crystallization is the removal and segregation from a melt of mineral precipitates; except in special cases, removal of the crystals changes the composition of the magma. In essence, fractional crystallization is the removal of early formed crystals from an originally homogeneous magma (for example, by gravity settling) so that these crystals are prevented from

Mining and Exploration for Mineral Resources

The mineral deposits formed by early magmatic segregation are generally lenticular and of relatively small size. Commonly, they are disconnected pod shaped lenses, stringers, and bunches. Less commonly and more importantly, they form layers in the host rock. The most famous example of this type of deposit is the Bushveld Igneous Complex in South

Magmatic Differentiation Tulane

If magmas are related to each other by some processes, that process would have to be one that causes magma composition to change. Any process that causes magma composition to change is called magmatic differentiation.Over the years, various process have been suggested to explain the variation of magma compositions observed within small regions.

CHAPTER 9

9.2.1 Mineral Associations and Textures The few, isolated (although economically important) layered intrusions that can be regarded as chromium deposits occur in tectonically stable environ­ ments. The layers ofthe intrusive complexes can be regarded as magmatic "strata," which maybe ofconsiderablelateral extent. Within these, the chro­

Geo 101 Tarbuck/Lutgens CH. 23 Flashcards Quizlet

Which of the following minerals does not form as a result of magmatic segregation? Diamond _____ is a high-pressure ultramafic rock, often containing diamonds, that is carried to the surface in tapered volcanic pipes. the creation of important mineral deposits by concentrating minor amounts of metals that are scattered through unweathered