What is classification of ore deposits?
Deposits are classified as primary, alluvial or placer deposits, or residual or laterite deposits. Often a deposit will contain a mixture of all three types of ore.
How are mineral deposits classified?
Mineral deposits include several different types related to magmatic, hydrothermal, sedimentary and metamorphic processes. Generally we can classify mineral deposits into two major groups: Industrial and non industrial. Several classification concepts exist today. All these concepts have advantages and disadvantages.
What are the stratiform ore deposit?
A final class of hydrothermal deposit is called stratiform because the ore minerals are always confined within specific strata and are distributed in a manner that resembles particles in a sedimentary rock. Because stratiform deposits so closely resemble sedimentary rocks, controversy surrounds their…
What are the four types of ore deposits?
Four important ore deposits are commonly hosted in volcanic successions: volcanic-hosted massive sulfide (VHMS) deposits, komatiite-hosted nickel sulfide deposits, epithermal gold–silver deposits, and kimberlite-hosted diamonds. There are different reasons why these ore deposit types occur in volcanic successions.
What are the types of ore?
Ans: Ores are the minerals from which metal is conveniently and profitably extracted. There are mainly four kinds of ores like Ores Oxides; Ores Carbonate; Sulphide Ores; Ores Halides.
What are the 2 general types of hydrothermal deposits?
Two Types of Hydrothermal Deposits
- Conditions for Formation.
- Brine is Essential.
- Mesothermal Deposits.
- Epithermal Deposits.
What are examples of mineral deposits?
The examples of mineral deposits are Broken Hill zinc–lead–silver deposit of Australia, Sudbury nickel–platinum–palladium deposits of Canada, Bushveld chromium–platinum–palladium deposits in South Africa, Jhamarkotra rock-phosphate deposit and Jharia coalfield in India, and Athabasca oil sands (crude oil) in …
What is stratabound?
Said of a mineral deposit confined to a single stratigraphic unit. The term can refer to a stratiform deposit, to variously oriented orebodies contained within the unit, or to a deposit containing veinlets and alteration zones that may or may not be strictly conformable with bedding. Ref: AGI.
What are Podiform deposits?
Podiform chromite deposits are small magmatic chromite bodies formed in the ultramafic section of an ophiolite complex in the oceanic crust. These deposits have been found in midoceanic ridge, off- ridge, and suprasubduction tectonic settings.
How do I know if my deposit is ore?
Geologists find ore deposits by testing the chemistry of the rock and soil. They can also determine the size of the deposit.
What are the criteria for classifying ore deposits?
Classifications vary, and in general they depend on one or more of the following criteria: •Descriptive •Morphology •Commodity •Genetic •Environment 5. The purpose of classifying mineral deposits is to group them into a small number of types having certain features in common.
How are genetic models used to classify ore deposits?
Genetic classifications have always been the most fascinating, and genetic models have been used extensively in the past as a basis for classification. However, genetic classifications are very dangerous, as they assume that we know the origin of the ore deposit, which, in many cases, we don’t!
How are mineral deposits classified in the field?
•Classifications of mineral deposits should propose generalizations about the origin and should be applicable in field descriptions of deposits • Since Middle Ages (that is since the time of Agricola), several classifications of mineral deposits have been proposed.
How are ore bodies classified according to morphology?
Classifications based on the morphology of the ore body could be quite useful, but have a tendency to mix apples with oranges (two ore bodies of similar shapes may be very different in type of ore, texture, origin, temperature of formation… etc.).