What are the classification of ore?
The types of ores that are based on how the ore was formed include igneous, sedimentary, metamorphic, hydrothermal.
What are the different types of ore deposits?
The most important kinds of ore deposits are magmatic, hydrothermal, and sedimentary.
What is Syngenetic ore deposit?
2.1.
Syngenetic mineral deposits are formed at the same time as the associated rocks as in magmatic segregation during the orthomagmatic stage of consolidation of magma or during precipitation of sedimentary rocks.
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.
What is the purpose of classifying ore deposit?
The purpose of classifying mineral deposits is to group them into a small number of types having certain features in common.
What are four ways that ore deposits can form?
Subsurface mining (under the earths surface), Surface mining (on top the earth’s surface), Placer mining (shallow water dredging) and Undersea mining (deep sea).
What is supergene and hypogene?
Supergene is a term used to describe near-surface processes and their products, formed at low temperature and pressure by the activity of descending water and gas. The opposite term is hypogene, formed by ascending water and gas at high temperature and pressure.
What is a Syngenetic in geology?
In economic geology, the term syngenetic has traditionally been used to refer to ore deposits formed at the same time as the enclosing rock as opposed to epigenetic that describes mineral deposits formed later.
What are the four classification of mineral resources?
Mineral resources can be divided into two major categories – Metallic and Nonmetallic. Metallic resources are things like Gold, Silver, Tin, Copper, Lead, Zinc, Iron, Nickel, Chromium, and Aluminum. Nonmetallic resources are things like sand, gravel, gypsum, halite, Uranium, dimension stone.
What is the difference between mineral deposit and ore deposit?
A mineral deposit is the showing of any type of mineral whether it has value or is just of scientific interest. An ore deposit is a mineral deposit that has an economic value as well as a scientific value.
What is the purpose of classifying ore deposits?
What are 3 processes ore minerals are formed?
The four main categories of mineral formation are: (1) igneous, or magmatic, in which minerals crystallize from a melt, (2) sedimentary, in which minerals are the result of sedimentation, a process whose raw materials are particles from other rocks that have undergone weathering or erosion, (3) metamorphic, in which …
What is supergene ore?
In the traditional view, supergene ore and gangue minerals are the products of reactions between hypogene sulfide minerals and descending, acidic meteoric waters; these processes take place at or near the ground surface in subaerial environments (Guilbert and Park, 1986).
What does hypogene mean?
Definition of hypogene
: formed, crystallized, or lying at depths below the earth’s surface : plutonic —used of various rocks.
How are epithermal deposits formed?
WHERE ARE EPITHERMAL DEPOSITS FORMED? ➢ Epithermal deposits are typically formed in areas of active volcanism called magmatic arcs which occur around the margins of continents. ➢ Magmas produce volcanic eruptions and lava flows and a whole variety of volcanic rocks at the surface of the earth.
What are classifications of resources?
Based on their origin, resources can be abiotic or biotic. Abiotic resources are non-living while biotic resources are living. Soils, rocks and minerals are abiotic but plants and animals are biotic resources.
What are the three ways that form ores?
There are three major types of ore genesis: internal processes, hydrothermal processes, and surficial processes. Ore can accumulate through geologic activity, such as when volcanoes bring ore from deep in the planet to the surface. This is called an internal process.
What are the 7 types of minerals?
The major classes of minerals are given below:
- silicates.
- sulfides.
- carbonates.
- oxides.
- halides.
- sulfates.
- phosphates.
- native elements.
What are 4 main categories of minerals formation?
How are ore deposits found?
Remote sensors that use satellite images and geochemical surveys are just two ways that minerals can be located. Many minerals are then removed through mining or quarrying. However, liquid minerals, such as oil or gas, may be extracted by pumping.
What is hypogene and supergene?
What are stratiform deposits?
In mineral deposit: Stratiform deposits. 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.
What is supergene deposit?
In ore deposit geology, supergene processes or enrichment are those that occur relatively near the surface as opposed to deep hypogene processes. Supergene processes include the predominance of meteoric water circulation (i.e. water derived from precipitation) with concomitant oxidation and chemical weathering.
What does epithermal mean?
Definition of epithermal
1 : deposited from warm waters at rather shallow depth under conditions in the lower ranges of temperature and pressure —used of mineral veins and ore deposits — compare hypothermal, mesothermal.
What is mesothermal deposit?
A mineral deposit formed at moderate temperature and pressure, in and along fissures or other openings in rocks, by deposition at intermediate depths, from hydrothermal fluids.