PPT – Formation of Mineral Deposits PowerPoint ...

MINERALOGY AND PETROLOGY Of SKARN DEPOSITS 861 3. They are closely associated genetically and spatially with other types of ore deposits, such as porphyry copper and greisen deposits. 4. Their intimate admixture of iron·rich skarn minerals and ore minerals

GY 111 Lecture Note Series Economic Geology

Oct 22, 2017· INTRODUCTION The purpose of any classification is to group similar objects into classes or sets either for convenience, organization, or access, as in a collection,a library, or a computer data base, or for the purpose of learning more about the items being classified . The study of ore deposits through the last century has required and ...

A Deposit Model for Mississippi Valley-Type Lead-Zinc Ores

CLASSIFICATION OF ORE DPOSITS. a) Basing on the nature and morphology b) Basing on the origin/ Genesis c) Basing on the temperature of formation (PT Conditions) d) Basing on the mineral composition CLASSIFICATION BASING ON THE MORPHOLOGY/SHAPE Regular Discordant Ore-bodies Tubular mineral deposits, these are ore bodies which are extensive in two dimensions, but have restricted …

Magmatic Ore Deposits - BU

MINERALOGY AND PETROLOGY Of SKARN DEPOSITS 861 3. They are closely associated genetically and spatially with other types of ore deposits, such as porphyry copper and greisen deposits. 4. Their intimate admixture of iron·rich skarn minerals and ore minerals

Classification of Ore Deposits | Rock (Geology) | Minerals

2. Iron Ore Deposits Iron ore deposits are known to occur in sedimentary, hydrothermal, and magmatic environments, but production today is almost entirely from three types of deposit: deposits related to Precambrian banded iron formations provide about 90% of all iron ore mined, and the remainder is derived from metasomatic skarn and magmatic

Types of Iron Ore: Hematite vs. Magnetite | INN

Magnetite ore and hematite ore are among the four types of iron ore deposits found in this area. In Minnesota, this type of iron ore is mined mainly in the Mesabi Range, one of the four ranges ...

Sٍedimentary manganes and iron ore deposits

The types of iron ores developed in the deposits are directly related to the original mineral facies. The predominant blue granular ore was formed from the oxide facies of the middle iron formation. The yellowish-brown ore, composed of limonite-goethite, formed from the carbonate-silicate facies, and the red painty hematite ore originated from ...

Classification of ore deposits - SlideShare

iron ore iron ore iron ore jewelry, copper ore electronic applications zinc ore lubricant, talcum powder ... referred to as Mississippi Valley-Type Lead-Zinc Ore deposits (MVT ores). The mechanism of formation is remarkably similar to that of the other hydrothermal deposits…

Minerals Resources

Ore minerals Minerals with economic value are ore minerals Minerals often associated with ore minerals but which do not have economic value are gangue minerals Key to economic deposits are geochemical traps metals are transported and precipitated in a very concentrated fashion Gold is almost 1,000,000 times less abundant than is iron Economic ...

Mineral deposit - Iron deposits | Britannica

Puttumala had retrieved 0.0067 million tonnes of an average grade of 14.99 g/t. In view of this a conglomeration of a number of small prospects could be a viable prospecting and exploration strategy for the Attappady gold deposits. IRON ORE Five iron ore deposits of banded magnetite quartzite type have been identified in

MINERALOGY AND PETROLOGY OF SKARN DEPOSITS

Nov 23, 2015· SEDIMENTARY MANGANES And IRON ORE DEPOSITS Most of the world's iron and manganese are derived from deposits of this type. These deposits are very large in size (thousands of millions of tons) and are usually mined by open-cut methods. Sedimentary iron and manganese ores are deposited in both fresh and marine water, in bogs, swamps, marshes ...

IRON OXIDE COPPER-GOLD (±AG ±NB ±P ±REE ±U) …

Table of ContentsLindgren ClassificationDeposits Produced by Mechanical Processes of ConcentrationDeposits Produced by Chemical Processes of ConcentrationIn Bodies of ...

ORE DEPOSIT TYPES AND THEIR PRIMARY EXPRESSIONS K.G ...

IOCG Deposit Types Definition Iron oxide copper-gold (IOCG) deposits encompass a wide spectrum of sulphide-deficient low-Ti magnetite and/or hematite ore bodies of hydrothermal origin where breccias, veins, disseminations and massive lenses with polymetallic enrichments (Cu, …

METAMORPHOSED AND METAMORPHOGENIc ORE …

vein deposits mississippi valley type deposits massive volcanogenic deposits sedimentary massive sulphide deposits layered mafic intrusion type deposits placer deposits references Introduction In order to more readily study mineral deposits and explore for them more effectively, it is helpful to first subdivide them into categories.

Iron and Manganese Ore Deposits: Mineralogy, …

Table of ContentsLindgren ClassificationDeposits Produced by Mechanical Processes of ConcentrationDeposits Produced by Chemical Processes of ConcentrationIn Bodies of ...

A Deposit Model for Mississippi Valley-Type Lead-Zinc Ores

Iron ore mining Industry Research, Global Mine Level Cost - This report provides a breakdown of mining cash costs per tonne for individual iron ore operations, company production and country production. Timetric's analysis covers 70 iron ore operations accounting for over 1,300Mt of iron ore production globally, the majority of which is export production.

Mineral Commodities of

Mineral deposit - Mineral deposit - Iron deposits: By far the most important metal from an economic and technical point of view is iron. Sedimentary iron deposits, from which almost all iron is obtained, can therefore be viewed as one of the world's great mineral treasures. There are two major types of deposit. The first, and by far the most important, is banded iron formations (BIFs), so ...

CLASSIFICATION OF DEPOSITS

Iron Ore can look like many things depending on what grade the ore is if it is a high grade such as Hematite (70.0%) or Magnetite (72.4%) then the ore will have a silver gray type but if the ore has a lower iron content like Goethite (62.9%) or Siderite (48.3%) then it is more likely to look like the type of rock that it was mined from.

Sedimentary Materials - University of Vermont

Mineral Deposit Types. Mineral deposits are metallic or hard rocks, deposits (metals such as Au, Ag, Cu Pb, Zn, Ni or Co, the dominant commodity, energy mineral deposits (including coal and uranium deposits) and industry mineral deposits (including mineral products of this kind), sand, gravel, zeolite, phosphate etc. ... Iron Ore Mineral ...

PPT – Formation of Mineral Deposits PowerPoint ...

3. Sedimentary-Exhalative (SEDEX) Type Deposits "Syngenetic" stratiform, bedded Zn-Pb deposits hosted by fine-grained clastic sedimentary rocks. These three types may be considered as a spectrum of base-metal ore deposits which form in sedimentary rocks at some time during the evolution of a sedimentary basin. SEDIMENT-HOSTED DEPOSITS

Iron Ore Mining PowerPoint PPT Presentations - PowerShow

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.

Iron ore PPT | Iron Ore | Iron

2-Sub concordant deposits: This type makes up about 25 % of the chromite occurrences. 1-Such ore bodies have internal structure make angle of 20 with dunite wall and surrounding peridotite 2-Lineation within the ore can be follow local change in the dipof ore sheet. 3-These deposits …