Bushveld Complex | geological formation, South Africa ...
In Precambrian: Layered igneous intrusions .and most famous is the Bushveld Complex in South Africa, which is 9 km (5.6 miles) thick and covers an area of 66,000 square km (about 25,500 square miles). It was intruded nearly 2.1 billion years ago and is the largest repository of magmatic ore deposits .Get Price
locations of chromite deposits - odeaubois
The Mineralogy and Chemistry of the Chromite Deposits of ... about 1000 individual chromite deposits. The chromite pods are clustered in two locations: a) the Karsantı district to the north east, and b) the Gerdibi-Cataltepe district in the south west. The chromite ore bodies occur in both the harzburgite cumulate parts of the ophiolite.Get Price
loions of chromite deposits - jackhiggins
Chromite deposits of Pre Cambrian (Iron Ore Group and Eastern Ghats) and Tertiary age are distributed in shield and tectonically mobile areas in India. Out of the 11 major chromite deposits distributed in 9 states of India, In Orissa, the two major deposits i. e. Sukinda Ultramafic Belt and Boula Nuasahi Igneous Complex hold around 98% of the ...Get Price
Chromite mining - The Oregon Encyclopedia
Mar 17, 2018· Most deposits of chromite in Oregon have been found near Grants Pass on the Siskiyou National Forest and near John Day on the Malheur National Forest. Domestic mining for chromite was restricted to a few locations in the United States, including Montana, California, and Oregon, and mining the mineral was only economically feasible during times ...Get Price
Chromite | Earth Sciences Museum | University of Waterloo
The area that is to be mined is known as the "Ring of Fire". It has an area of 5,120 square kilometres and is said to hold one of the richest ore deposits in the world. Minerals which are found in this deposit include copper, nickel, platinum, diamonds, palladium, gold, silver and of course chromite. This deposit of chromite is incredibly ...Get Price
Chromite - an overview | ScienceDirect Topics
Chromite. Chromite is an oxide mineral belonging to the spinel group, a complex mineral containing magnesium, iron, aluminum, and Cr in varying proportions, depending on the deposit, that can be represented as FeCr2O4 or (Fe2+,Mg)[Cr,Al,Fe3+]2O4 (Murthy et al., 2011; Sanchez-Segado et .Get Price
Chromite: The only mineral ore of chromium metal
Podiform deposits are known in Kazakhstan, Russia, the Philippines, Zimbabwe, Cyprus, and Greece. The first discoveries of podiform chromite deposits were made near Baltimore, Maryland in the early 1800s. These deposits supplied nearly all of the world's chromite until about 1850. These deposits were small and are no longer in production.Get Price
Podiform chromite deposits - USGS
Subtype of podiform chromite deposit as determined by the grade and tonnage models. Textual values of no more than 15 characters. tectset Paleotectonic setting. Paleotectonic setting, a preliminary categorization of the deposit according to the tectonic setting in which the deposit formed, midocean ridge, off-ridge, or suprasubduction.Get Price
Chromite - Wikipedia
Location and characteristics of 1,124 individual podiform chromite mineral deposits, with grade and tonnage models for chromium as well as several related elements.Get Price
Classification of Mineral Deposits | Geology for Investors
Oct 17, 2019· The Bushveld Complex in South Africa is an economically important layered mafic intrusion containing Chromite and Platinum Group Metals (PGM's). ... which predict the probability of a deposit type occurring within a particular location, based on known rock types and structural geology. ... such as coral reef formation. Mineral deposits may form ...Get Price
Ore Facts for Kids
May 22, 2020· Most ore deposits are named according to their location (for example, the Witwatersrand, South Africa), or after a discoverer (e.g. the Kambalda nickel shoots are named after drillers), or after some whimsy, a historical figure, a prominent person, something from mythology (phoenix, kraken, serepentleopard, etc.) or the code name of the ...Get Price
CHROMITE Indian Minerals Yearbook 2013
Chromite contains about 68% Cr 2 O 3 and 32% FeO with Cr:Fe ratio of about 1.8:1. Chromite is the only commercial source of chromium. It occurs as a primary mineral in ultrabasic igneous rocks and is normally associated with peridotite, pyroxenite, dunite and serpentinite. Worldwide, high-alumina chromite, largely from podiform deposits, is used inGet Price
(PDF) ORE DEPOSITS (Ore Geology) - ResearchGate
Most ore deposits are named according to either their location (for . example, the Witswatersrand, South Africa), or after a discoverer ... of podiform chromite deposits.Get Price
Ore Deposits of the Philippines--An Introduction to Their ...
The two largest chromite deposits, Masinloc and Acoje, represent, respectively, refractory and metallurgical ores. Both are located in belts of peridotitic rock that are part of the alpine-type Zambales ultramafic complex of western Luzon. The unusually high alumina content of the Masinloc chromite suggests that it is an earlier crystallate ...Get Price
(PDF) Chrome ore beneficiation challenges & opportunities ...
The low chromium‐to‐iron ratio of chromite ores is an important issue in some chromite deposits. The value of the chromite ore is indeed dictated in the market by its iron, as well as its ...Get Price
Chromite deposits of the north-central Zambales Range ...
Peridotite and gabbro form an intrusive complex which is exposed over an area about 35 km wide and 150 km long in the center of the Zambales Range of western Luzon. The Zambales Complex is remarkable for its total known resources, mined and still remaining, of about 15 million metric tons of chromite ore. Twenty percent of Free World production was obtained from this area between 1950 .Get Price
Louise Chromite Deposit Near Louise, Georgia | The Diggings™
The Louise Chromite Deposit is near Louise, Georgia. The site was first discovered in 1870. The Louise Chromite Deposit is a surface mining operation. Mine operations consist of surface workings extending 73.00 hectares (180.39 acres). There is one known shaft. The mining method is open pit.Get Price
Angela Chromite Mine Near Gasquet, California | The Diggings™
The Angela Chromite Mine is near Gasquet, California. Historically the site has been associated with the Smith River Mining District which is now part of the Six Rivers National Forest. The Angela Chromite Mine was closed at the time of data entry with no known plans to re-open.Get Price
Soldiers Delight - Maryland
In these two locations, chromite is a significant accessory mineral in the serpentine and was mined up until 1860. Several old mines and quarries are still visible in these serpentine barrens. An excerpt from the MGS Baltimore County Report of 1929 discusses the historical chrome deposits.Get Price
Review of Brazilian Chromite Deposits Associated with ...
chromite in massive chromitite of the BMUC is compared with other deposits in Table 1. The Mg ratio of chromite from the BMUC extends over a wide range (0.15-0.55), while the Cr ratios are very high (0.66 - 0.89) and vary through a smaller range. Figure 1. Schmatic location of the chromite mineralizatied layered complexes in Brazil.Get Price
Copper, Nickel & Chromite Distribution across India ...
Jan 31, 2016· Chromite Ore Distribution In India. Reserves of chromite in India is estimated at 203 MT. 93 per cent of the resources are in ODISHA [Sukinda valley in Cuttack and Jajapur] Minor deposits are spread over Manipur, Nagaland, Karnataka, Jharkhand, Maharashtra, TN & AP. Chromite in Odisha. Odisha is the sole producer [99 per cent] of chromite ore.Get Price
CHROMITE DEPOSITS OF THE NORTH ELDER CREEK AREA .
Chromite deposits have been known to exist in Tehama County since 1886,1/ and they have been worked intermittently since 1890. Although chromite has been produced In appreciable quantity from the Kleinsorge mine to the south, the Tomhead and Tedoc mines to the north, and several scattered deposits, the major part ofGet Price
Blackbird Chromite Deposit - Noront Resources
The Blackbird chromite deposit was discovered in 2008 and will be the second mine in Noront's pipeline. It is one of a number of large tonnage, high-quality chromite discoveries in the Ring of Fire. It offers significant potential due to its size, grade and location (less than 1 km from Eagle's Nest). Deposit Geology & MineralizationGet Price
Petrogenetic Evolution of Chromite Deposits in the Archean ...
Jan 01, 2018· 6.2. Types of Chromite Deposits. The chromite deposits were originally classified by Thayer (1960) as stratiform and podiform types, based on the morphological outline of the ore body. According to this classification, stratiform chromitite refers to conformable layers usually of great lateral extent, which are hosted within ultramafic-mafic cumulate rocks in large layered intrusions that ...Get Price