mineral deposit contain something valuable but may or may not be assessable or profitable to extract. ore deposits can be mined for profit. Factors that influence classification include ore grade, type of ore, size of deposit, depth of deposit and location of deposit
Here are the Types of Underground Mining and Their Applications. ... This method is called underground mining, whose types are explained below. Room and Pillar Mining. In this method, mining is carried out in an ore deposit, leaving behind some of the ore in the form of columns to support the roof and prevent it from collapsing. Thus, it ...
A List to some Major Types of Ore Deposits and a link Book Download. Komatiite-associated nickel deposits Layered mafic-ultramafic intrusion deposits Skarn deposits Fractionated granitoid-associated deposits Porphyry-associated deposits Iron oxide copper gold deposits Syn-deformational hydrothermal and replacement deposits Orogenic gold deposits Carbonate-hosted stratabound lead-zinc deposits ...
Types of Ore Deposits. by Gerald G. Carlson, Ph.D., P.Eng. President, Copper Ridge Explorations Ltd. INTRODUCTION The search for mineral deposits is the principal business activity of most of the
11. Hydrothermal Alteration By W.C. Pat Shanks III 11 of 21 ... deposits, ore generally consists of sulfide or sulfosalt minerals that contain Cu, Pb, Zn, Ag, and (or) Au. Gangue is defined ... Advanced argillic is a special type of alteration that forms in highly acidic, high sulfidation-state conditions char- ...
Sources for ore rocks often exist in areas of stream flow in the form of placer deposits. In South America, pre-Columbian civilizations found platinum intermixed with gold in river deposits. The largest platinum deposits reside in Russia, South Africa and Zimbabwe, with smaller deposits in Canada and the United States.
AURIFEROUS DEPOSITS. Gold is won from deposits mined essentially for the metal and as a by-product of the mining and treatment of nickel, copper, zinc, lead, and silver ores. Nine principal types of deposits, exploited mainly for gold, are listed subsequently.
Types of ore deposits,. [Harry Foster Bain] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Contacts Search for a Library. Create lists, bibliographies and reviews: or Search WorldCat. Find items in libraries near you ...
The iron ore deposits began forming when the first organisms capable of photosynthesis began releasing oxygen into the waters. This oxygen immediately combined with the abundant dissolved iron to produce hematite or magnetite.
cycle. The vast array of ore deposit types and their particular elemental compositions result from the complex interplay of favourable combinations of source, transport and depositional variables. Although ore formation is a common and intrinsic part of crustal evolution, large and super large ore deposits require the coincidence of particularly
Types of copper ore: More information The above information provides a good overview of the types of copper ore and how they’re processed, but as all savvy investors know, more information is ...
Types of ore deposits Item Preview remove-circle Share or Embed This Item. ... Topics Ore deposits. Publisher San Francisco Mining and scientific press; [etc.] Collection noranda; toronto. Digitizing sponsor MSN. Contributor Earth Sciences - University of Toronto. Language English.
Types of Ore Ore is rock that contains economic amounts of a particular element, e.g. gold ore, iron ore, molybdenum ore, or praseodimium ore. In contrast, rock that is not judged to contain economic quantities of an element is categorized as waste rock .
Ore Deposit: Natural concentration of an ore mineral in a massive rock body is defined as an ore deposit. It may be of any shape and form but its size is of real importance. A small patch or layer of bauxite, say one meter thick and a kilometer long will not make an ore deposit.
within which most ore deposits can be placed. Most exploration programs are focused on one or possibly more of these broad classification categories. It is the geologist's thorough understanding of all aspects of a specific ore deposit type size, shape, rock types, mineralogy, chemistry, alteration patterns, structure - that
Important Types of Ore Deposits. Affect of Elements on Mineral Color. The major factors responsible for the production of color in minerals fall into five categories: 1) The presence of an element essential to the mineral composition 2) The presence of a minor chemical impurity
Classification of Mineral Deposits Posted by: Staff @ Geology for Investors in Geology Basics , The Basics Geologists, are known to have more opinions than economists, so it should come as no surprise that the classification of mineral deposits, is an on-going hot topic.
Iron ore mining methods vary by the type of ore being mined. There are four main types of iron ore deposits worked currently, depending on the mineralogy and geology of the ore deposits. These are magnetite, titanomagnetite, massive hematite and pisolitic ironstone deposits.
4. Types of ore. There are two distinct types of copper deposits: sulfide ore and oxide ore. Currently the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts ...
LIST OF ORE DEPOSIT TYPES PORPHYRY BASE METAL-MOLYBDENUM-GOLD SYSTEMS A. Porphyry-Hosted 1. Porphyry Molybdenum Systems a. Low Fluorine Type - Examples: Boss Mountain, Endako, Hall, Kitsault, Thompson Creek b. Climax Type - Examples: Climax, Henderson, Questa, Urad 2. Porphyry Copper a.
20.1 Metal Deposits ... For a variety of reasons, thermal energy (heat) from within Earth is critical in the formation of many types of ore deposits. Look back through the deposit-type descriptions above and complete the following table, describing which of those deposit types depend on a source of heat for their formation, and why.
7.0 Deposits associated with sedimentary processes or rocks Deposits associated with sedimentary processes or rocks include a number of metallic and industrial mineral deposit types and commodities. The most important metallic deposit type in Afghanistan is sediment-hosted copper represented by the Aynak and associated deposits (section 7.1).
Orogenic Gold Deposits: A Proposed Classification in the Context of Their Crustal Distribution and Relationship to Other Gold Deposit Types: Ore Geology Reviews. Hoy (eds. T. Kirkham. 1995-20.. D. J. R. W. Volcanic-Associated Massive Sulfide Deposits.
A vein-type ore deposit is defined here, as: a deposit of ore filling a fissure, or fissures, in rock. This term is non-genetic and is non-restrictive with regard to orientation.
Ore deposits are often classified based on examples of their type, such as Broken Hill-type lead-zinc-silver deposits, or Carlin-type gold deposits. Hydrothermal ore deposits are also classified according to the temperature of formation, which roughly correlates with particular mineralizing fluids, mineral associations, and structural styles.
Morphology and Relationship with Host Rocks . Mode of occurrence of an ore deposit is important from the mining point of view. Sedimentary ore deposits are …
Ore deposits are classified based on how they form, whether as a result of an igneous, metamorphic, or sedimentary process, or a hydrothermal exposure process. Some metals can form from more than ...
Geological ore deposits are of many different types and occur in all geological environments. Discover more. Basic chemical principles Minerals have several chemical and physical properties that determine both their internal structure and external form. Mineral groups are classified according to these properties.
Types of Iron Ore – Haematite, Magnetite, Limonite & Siderite. Distribution of Iron Ore in India – Iron ore in Orissa, Jharkhand, Chhattisgarh, Karnataka & other states.