Schneiderhohnclassifiion:classified ore deposits according to 1the nature of the fluid, 2mineral association, 3a distinction between deep seated and near surface deposition and 4the type of deposition, host, or gangue. The classifiion of ore deposits by Schneiderhohnas bellow:
MINERALOGY AND PETROLOGY OF SKARN DEPOSITS ABSTRACT. Pyrometasomatic or skarn deposits are high temperalUre hydrothermal ore deposits of world·wide distribution (usually in orogenic behs) which are important sources of Fe, Cu, Zn, W, and other metals. The characteristic feature of these deposits is the gangue,
Apr 26, 2015 · Ore deposits can exclusively be formed under sedimentation process like iron ore as Banded Iron Formation (BIF), and Banded Hematite Quartzite (BHQ), zinclead deposits in dolomite, coppergold in quartzite, diamond in conglomerate and limestones. Metamorphic rocks host important ore deposits
Waldemar Lindgren: Waldemar Lindgren, Swedishborn American economic geologist noted for a system of ore classifiion that he detailed in his book Mineral Deposits (1913). Lindgren graduated in 1882 as a mining engineer from the Freiberg Mining Academy in Germany. Following a year of postgraduate work at Freiberg,
A new classifiion of the gold deposits of Egypt Nagy Shawky Botros* Egyptian Geological Survey, Cairo, Egypt Received 14 August 2002 accepted 1 July 2003 Available online 7 February 2004 Abstract Gold deposits and occurrences loed in the Nubian Shield have been known in Egypt since Predynastic times.
Metals occur in all kinds of rocks but usually in concentrations that are too low to be mined. Metallic ore deposits, however, are relatively rare concentrations of metal‐bearing minerals (usually sulfides) that contain enough metal to be profitably mined.Again, the profit line
chromite deposits are found in dunite or peridotite near the contact of the cumulate and tectonite zones in ophiolites. We have identified 1,124 individual podiform chromite deposits, based on a 100meter spatial rule, and have compiled them in a database. Of these, 619 deposits
This subdivision, or classifiion, can be based on a number of criteria, such as minerals or metals contained, the shape or size of the deposit, host rocks (the rocks which enclose or contain the deposit) or the genesis of the deposit (the geological processes which combined to form the deposit).
All ores are mineral deposits because each of them is a local enrichment of one or more minerals or mineraloids.Not all mineral deposits are ores. In order for a deposit to form, processes must bring about a localized enrichment of one or more minerals.
Oct 11, 2015 · The Philippines are blessed with mineral and metal deposits due to its geology. The islands are on the top of underwater mountains that were formed due to the molten rocks from the interior of earth, which created the ideal setting of a variety of valuable minerals. Placer and lode gold deposits are found throughout the 
Classifiion of Mineral Resources and Reserves Geology
Upon inspection of the list one would notice the absence of China, Russia and India. These countries use similar, but in most cases more elaborate classifiion schemes. The difference between a resource and reserve basically boils down one thing: a feasibility study. Not included in the classifiion, but often mentioned is a mineral occurrence.
Classifiion of Mineral Deposits Geology for Investors
Geologists, are known to have more opinions than economists, so it should come as no surprise that the classifiion of mineral deposits, is an ongoing hot topic. The details will be debated until the sun cools, but the broadbrush classifiion of mineral deposits is generally understood. Most
Rare Earth Ore Classifiion. Classifiion of ores related to alkaline rocks is also controversial. Table 2 presents a relatively simple classifiion that follows analogous egories for deposits related to nonalkaline igneous rocks. Some of the more unusual alkaline rocks that host, or are related to, REE ores are carbonatite and phoscorite, igneous rocks composed principally of
classifiion of skarn deposits. The compositional variation of garnet and pyroxene is also discussed in the classifiion section papers in the present issue add considerable detail to this subject, presenting over 700 electron microprobe analyses of garnets and pyroxenes from a large variety of ore types. In ad
Apr 15, 2013 · Types of Ore Deposits. April 15, 2013 Sanuja Senanayake. Notes: Not all ore deposits will contain secondary minerals. The epigenetic (different times) and syngenetic (at the same time) is based on the time frame for the formation of the host rock and the ore. Some ores cab be classified as both syngenetic and epigenetic. Rock Classifiion
The basic extraction of ore deposits follows these steps: Prospecting or exploration to find and then define the extent and value of ore where it is loed ("ore body") Conduct resource estimation to mathematically estimate the size and grade of the deposit Conduct a prefeasibility study to determine the theoretical economics of the ore deposit.
LIST OF ORE DEPOSIT TYPES PORPHYRY BASE METALMOLYBDENUMGOLD SYSTEMS A. PorphyryHosted 1. Porphyry Molybdenum Systems a. Low Fluorine Type Examples: Boss Mountain, Endako, Hall, Kitsault, Thompson Creek
Classifiion of Ore Deposit Igneous Rock Statistical
Ore deposit classifiions attempt to group ore bodies which share certain common characteristics. Ideally, by grouping similar deposits together we can pool information and learn facts which might be useful in the discovery of similar ore deposits.
20.1 Metal Deposits – Physical Geology opentextbc.ca
20.1 Metal Deposits Mining has always been a major part of Canada''s economy. Canada has some of the largest mining districts and deposits in the world, and for the past 150 years, we have been one of the most important suppliers of metals. Extraction of Earth''s resources goes back a long way in Canada.
INDIAN NATIONAL MINERAL RESOURCE CLASSIFICATION SYSTEM, ITS EVOLUTION AND MAPPING WITH UNFC 1997/2004 BY Dr. R.N. Meshram, Ex Chief Mineral Economist & Consultant Dr. S.S. Bhake, Chief Mineral Economist J.N. Patel, Deputy Mineral Economist INDIAN BUREAU OF MINES.
The first genetic classifiion of ore deposits to win wide acceptance was that initially proposed by Waldemar Lindgren in 1906 and last revised by him in 1933. As ideas on the genesis of ores have undergone change in the thinking of geologists, the Lindgren classifiion has come under attack mainly by two groups.
Environmental Geochemistry of Ore Deposits and Mining Activities. ORE MATERIALS: PRIMARY AND SECONDARY MINERALOGY OF ORE DEPOSITS Introduction Our society and civilization is built upon resources of all kinds, also earth resources. For example, and ordinary telephone receiver is made from more than classifiion criterion (temperature
The development of a simple classifiion scheme for gold deposits, as presented here, has been approached with a full appreciation that there are many difficulties associated with classifiion of ore deposits in general. In the case of lode gold deposits, contrasting classifiions and nomenclatures have been arrived at historically
Classifiion of Mineral Deposits. Three main principles are utilized for classifying mineral deposits in this study: (1) oreforming processes are closely . related to rock forming processes (Obruchev, 1928), and so mineral deposits originate as thae result of mineral mass differentiation under their constant circulation in sedimentary,
Classifiion of Ore Deposits Rock (Geology) Minerals
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 Orebodies Tubular mineral deposits, these are ore bodies which are extensive in two dimensions, but have restricted
quantities of highgrade mineral ore deposits. 1.1.2 Development If the mineral ore exploration phase proves that there is a large enough mineral ore deposit, of sufficient grade, then the project proponent may begin to plan for the development of the mine. This
Mineral resource classifiion. In common mining terminology, an "ore deposit" by definition must have an ''ore reserve'', and may or may not have additional ''resources''. Classifiion, because it is an economic function, is governed by statutes, regulations and industry best practice norms.