GY 111 Lecture Note Series Economic Geology Lecture Goals A Economic Minerals resources versus reserves iron ore iron ore iron ore jewelry copper ore electronic applications sedimentary rocks and gets a little
Get PriceOre Deposits Formed by Sedimentation The process of sedimentation results in the formation of some important mineral deposits viz iron manganese copper phosphate coal oil shale carbonates cement rock diatomaceous earths bentonite fuller s earth magnesite sulfur and uranium vanadium deposits
Get PriceSedimentary Rocks I Detrital or Clastic Exogenic Main Mineral Constituents and Texture Minerals Texture or Grain Size Quartz ± cement Quartz Feldspar ± cement IRON ORE fossils rare Cherty Iron Ore fossils absent Evaporites Highlighted Rocks are found in Michigan
Get PriceNatural specimen of ferriferous sandstone kind of iron ore sedimentary rock formed from sand cemented by various iron oxides and hydroxides hematite hydrohematite limonite goethite on white background
Get Priceof sedimentary rocks largely slates and the Hawkins formation of diabasic lavas tuffs and breccias The time relations of Hawkins 6 Stratigraphic Aspects Blewett Cle Elum Iron Ore Zone peridotite because of the occurrence on the western flank of Mt
Get PriceThe most vital iron ore resources are found in sedimentary rocks knownas Banded Iron Formations Iron ore isreduced to pig iron by coke to produce crude iron metal Iron is not strong in its pure form
Get PriceIron formation·hosted iron ore deposits account for the majority of current world iron ore production and consist of three classes 1 iron rich primary iron formation with typically 30 to 45 wt percent Fe 2 martlte
Get PriceMaryland Geology From the Atlantic coast on the east to the Appalachian Plateau on the west Maryland has a great variety of geology and landforms Small deposits of iron ore are of historical interest Plentiful supplies of ground water are available from a number of aquifers throughout much of this region The sedimentary rocks of
Get PriceChert is a hard and compact sedimentary rock It is associated with SEDEX type magnetite hematite iron ore is a soft and very light weight sedimentary rock Check price Hard Rock Copper Ore Grinding Mill China
Get PriceHome / A Guide to Oil Shale Coal and Other Sedimentary Rocks A Guide to Oil Shale Coal and Other Sedimentary Rocks As a result iron ore is considered a chemical sedimentary rock It is typically found in the form of hematite or magnetite Iron ores vary when it comes to their coloring Bakken com is owned and operated
Get Price· Best Answer iron is a very common rock forming element Most igneous rocks contain a few weight percent iron Most of the common dark green and black minerals in such rocks are iron silicates When the minerals weather react with water and oxygen and acidity the iron leaches out and forms oxide
Get PriceDivision of Geology and Land Survey 111 Fairgrounds Road • Rolla MO 65401 Sedimentary rocks are formed from eroded pieces of rock that have been Calcite is commonly found as a gangue mineral in ore deposits as the cementing medium in sandstones and conglomerates or as a minor
Get PriceAbstract Mining operations at Steep Rock Lake since 1945 have yielded about ten million tons of high grade iron ore and have cast new light on the geology of this long famous Precambrian area
Get PriceLewis Dean Geological Survey of Alabama Most of the state is covered with sedimentary rocks with exposures of igneous and metamorphic rocks being confined to the east central part of the state Red iron ore from the Red Mountain Formation has been mined in Bibb Blount Cherokee DeKalb Etowah Jefferson and Tuscaloosa
Get PriceChemical sedimentary rocks such as rock salt iron ore chert flint some dolomites and some limestones form when dissolved materials precipitate from solution Organic sedimentary rocks such as coal some dolomites and some limestones form from the accumulation of plant or animal debris
Get PriceIulia North Dobrogea Romania Lower Triassic iron ore of Keywords Iron ore Garnet Grandite Sedimentary Exhalative SedEx North Dobrogea Romania 1 Introduction The iron ore described here occurs at between the ore and the magmatic rocks in the region based on the lack of evident
Get PriceExplore Minnesota IRON ORE Minnesota is a mining state Its six iron ore operations tons of surface and rock stripping Geology The Mesabi Iron Range is a narrow belt approximately three miles wide of iron rich sedimentary rocks otherwise known as the Biwabik Iron Formation The Mesabi Iron Range extends in
Get PriceThough they may seem rock solid the ancient sedimentary rocks called iron formations the world s chief economic source of iron ore were once dissolved in seawater How did that iron go from a
Get PriceIron Ore Another metal that will become a substitute for copper ore It has similar properties to the mentioned copper but it has wider use in the industrial area
Get PriceMuch of the world s iron ore deposits come from rock known as Banded iron formation Sediment becomes sedimentary rock by the process known as blank which involves the blank of grains loss of water and blank whereby material is precipitated in pore spaces and binds grains together
Get Priceshallow dipping iron rich sedimentary rocks known as the Biwabik Iron Formation Most of the formation is buried by glacial drift creating an intermittent narrow outcrop pattern The rocks are middle Precambrian in age about 1 8 Explore Minnesota Iron Ore
Get PriceBanded iron formations BIF These are fine grained metamorphosed sedimentary rocks composed predominantly of magnetite and silica as quartz Most of the iron ore is extracted from banded iron formations the geological structures laid down mostly between 3 and 1 2 billion years ago
Get PriceWhat are Sedimentary Rocks Sedimentary rocks are the most common rock types which are freely exposed on the earth s surface Examples include rock salt dolomites flint iron ore chert and some limestone Organic Sedimentary Rocks; Amber is an organic sedimentary rock and is naturally plastic and is light weight
Get PriceMetamorphic rocks form deep within the Earth when heat and pressure are applied to either igneous rocks or sedimentary rocks What is the Definition of Igneous Rock Ask Kids Answers An Igneous rock is formed from magma which has reached the earth s surface and cooled
Get PriceMorphology and Relationship with Host Rocks Mode of occurrence of an ore deposit is important from the mining point of view Sedimentary ore deposits are roughly tabular most others occur in a variety of forms
Get PriceMost iron ore deposits are found in sedimentary rocks Others are mined in volcanic complexes such as El Laco in Chile and Kiruna in Sweden These iron ore deposits called Kiruna type deposits account for about 10% of the global production of iron yet nobody knows how they are formed
Get PriceThe sedimentary iron ore Family of Rocks uses IRON ORE SEDIMENTARY ROCKS The deposits of iron ore which occur as rocks interstratified or associated with sedimentary beds have originated through complex processes sometimes wholly sometimes partly of a purely chemical nature and usually more or
Get Price· Ore & explanation video lesson transcript iron ore sedimentary rock pictures definition more These rocks are usually found in the form of hematite fe2o3 or magnetite fe3o4 iron
Get PriceMost of the iron ore in the world is mined from Precambrian sedimentary rocks the largest l ead zinc silver and copper deposits occur in sedimentary rocks mostly Precambrian especially Proterozoic and the largest gold and uranium deposits also are located in sedimentary rocks as well Archean to Proterozoic in age
Get PriceChemical sedimentary rocks such as rock salt iron ore chert flint some dolomites and some limestones form when dissolved materials precipitate from solution Organic sedimentary rocks such as coal some dolomites and some limestones form from the accumulation of plant or animal debris
Get Price