Iron mining in the United States - Wikipedia
Iron ore was discovered on the Marquette Range in 1844, and mining started in 1848. Mining increased after the opening of the ship canal at Sault Ste. Marie provided cheap water transportation between the iron mines to the lower Great Lakes. The Lake Superior iron deposits were the largest ever discovered in the United States, and by the late 1800s, …
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Maine Geological Survey: History of Metal Mining in Maine
A mining boom swept Maine from 1879 to 1882. In a great flurry of excitement small mines and prospects were opened in many areas, primarily along the coastal volcanic belt from Blue Hill to Lubec. Iron, silver, copper, lead, and zinc were mined, milled, concentrated, and smelted. A sudden drop in prices in 1883 caused most of the mines to close ...
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The origin of terrestrial pisoliths and pisolitic iron ore deposits ...
The origin of terrestrial pisoliths and pisolitic iron ore deposits: Raindrops and sheetwash in a semi-arid environment @article{Lascelles2016TheOO, title={The origin of terrestrial pisoliths and pisolitic iron ore deposits: Raindrops and sheetwash in a semi-arid environment}, author={Desmond F. Lascelles}, journal={Sedimentary Geology}, year ...
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The Iron Ore Deposits of Indiana - scholarworks.iu.edu
The Iron Ore Deposits of Indiana. In 31st annual report of the Indiana Department of Geology and Natural Resources, pp. 299-428. Indianapolis, Indiana: Wm. B. Burford, Contractor for State and Binding. Series, #: Annual Reports of the Indiana Geological Survey; 31.
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Collections: Iron, How Did They Make It? Part I, Mining
Bog iron is formed when ground-water picks up iron from iron-ore deposits, where that iron is then oxidized under acidic conditions to form chunks of iron minerals (goethite, magnetite, hematite, etc.), typically in smallish chunks. Bog iron is much easier to smelt because it contains fewer impurities than iron ore in rock deposits, but the ...
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History of the Iron Ore Trade : The Cleveland …
This brief history appeared in the 1910 Annual Report of the Lake Carriers' Association. The iron ore trade is, of course, the trade of the Great Lakes, but it was not always so. The premier trade for so many years was grain, then …
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The Great Iron Ore Odyssey by Donovan A. Shilling
The processed iron ore was smelted into long, flat bars called a "sow." The shorter bolts cut off from the bar were naturally called "pigs," hence the term "pig iron." In 1900 a vast, new iron ore deposit was uncovered in Minnesota's Mesabi Range and found to be far richer in iron content than local ore. Due to the bed's location and the ease ...
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Geologic and structural environment of the iron ore deposits …
The most important Mexican iron ore deposits occur along the Pacific slope of the continent and, sporadically, in the northeastern and central parts of the high plateau. Intrusive and extrusive igneous rocks (principally granite, granodiorite, monzonite, andesite, and rhyolite) of different ages, and marine sediments mainly of Cretaceous age ...
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TSHA | Iron and Steel Industry - Handbook of Texas
Iron ore deposits in Texas were first exploited commercially in the time when charcoal furnaces were profitable. Ores in Texas were used as early as 1855 at the Nash Furnace, believed to have been located in northwestern Marion County.
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Origin of a South Texas roll-type deposit; II, Sulfide petrology …
The virtual absence of organic carbon in the host sand precludes a bacterial origin for the ore-stage iron disulfide minerals and, therefore, eliminates bacterial metabolism as the mechanism for isotopic fractionation. Instead, the sulfur source for ore-stage sulfides was preore (first stage) sulfides, remobilized via partial oxidation to ...
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(PDF) The possible speleogene-hypogene origin of the Warda Iron Ore …
The Warda Iron Deposit was mined during the time of the crusades by the Arabs in the time of Saladin to supply the castle of Ajloun. The historic mine consists of two larger rooms, together about ...
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Classification of ore deposits - SlideShare
10. Schneiderhöhn Classification •Schneiderhöhn also considered only mineral deposits related to magmatic processes. •Four main classes are recognized depending on the nature of the ore-bearing fluids: intrusive and liquid-magmatic (magma), pneumatolytic (gases under high temperature-pressure conditions), hydrothermal (aqueous solutions ...
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Iron Ore: Sedimentary Rock - Pictures, Definition
Earth's most important iron ore deposits are found in sedimentary rocks. They formed from chemical reactions that combined iron and oxygen in marine and fresh waters. The two most important minerals in these deposits are iron …
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Simandou Iron Ore Deposit, Republic of Guinea, West Africa
The Simandou iron ore deposit located in the Simandou mountain range in south-eastern Guinea is believed to be the world's biggest untapped high-grade iron ore deposit. It is also one of the most easily extractable iron ore deposits in the world. Despite its discovery in 2002, the massive ore body has remained dormant due to prolonged legal ...
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SP-02 Geology and Origin of the Iron Ore Deposits of the Zenith …
The Zenith mine, at Ely in the Vermilion iron district of Minnesota, yielded about 21 million tons of high grade iron ore before closing in 1962. The ore that was mined consisted of massive crystalline hematite, brecciated and cemented by a later generation of crystalline hematite. The deposits are steeply dipping tabular bodies enclosed within ...
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(PDF) The possible speleogene-hypogene origin of the Warda Iron Ore …
UDC 553.3(569.5) The possibly hypogene karstic iron ore deposit of Warda near Ajloun (Northern Jordan), its mineralogy, geochemistry and historic mine In this study the iron ore deposit of the ...
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Taconite - Wikipedia
Taconite (/ ˈ t æ k ən aɪ t /) is a variety of iron formation, an iron-bearing (over 15% iron) sedimentary rock, in which the iron minerals are interlayered with quartz, chert, or carbonate.The name "taconyte" was coined by Horace Vaughn Winchell (1865–1923) – son of Newton Horace Winchell, the Minnesota State Geologist – during their pioneering investigations of the …
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Iron Ore: Sedimentary Rock - Pictures, Definition & More - Geology
The most important of such deposits were formed just north of the Black Sea about 35 million years ago during the Oligocene Epoch. Named Chiatura and Nikopol after two cities in Georgia and Ukraine, they contain an estimated 70 percent …
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A fundamental role of carbonate–sulfate melts in the formation of iron ...
The Iron Springs deposits have been described as being of magmatic–hydrothermal origin 22,23,24, on account of their skarn-like features, which include massive replacement-style ore bodies that ...
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Brief History of Birmingham, Alabama Iron Ore Mining
Iron ore mining in the Birmingham District followed the ups and downs of iron and steel production. Active mining stopped in 1975. After that, cheaper imported ores were used until the iron and steel industry was mostly shut down. It is estimated that from 1840 to 1975, 375 million short tons of iron ore were produced in the Birmingham District.
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mineral deposit - Iron deposits | Britannica
Manganese deposits similar to Algoma-type iron deposits are widespread. Generally considered to have formed as a result of submarine volcanism, most are too poor to mine, but, where weathering has caused secondary enrichment (discussed below), small but very rich ore deposits have formed. Such deposits are mined in Brazil, Mexico, Gabon, and Ghana.
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Origin of the Surigao iron ores | Economic Geology
The iron ore deposit of Surigao, Mindanao, Philippine islands, occurs as a surficial mantle over serpentinized ultrabasic rocks. The ore is lateritic in origin, having been derived by subaerial decomposition of the parent serpentine rock. The Surigao deposit resembles closely the lateritic iron ores of Mayari, Cuba.
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TSHA | Iron Ore Deposits - Handbook of Texas
In East Texas both siderite (iron carbonate) and limonite (iron oxide) exist in large quantities, primarily in Anderson, Cass, Cherokee, Harrison, Henderson, Houston, Leon, Marion, Morris, Nacogdoches, Smith, Upshur, Van Zandt, and Wood counties, where the ore deposits occur usually in strata forming the caprocks of low mountain ranges.
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Magmatic origin of giant 'Kiruna-type' apatite-iron-oxide ores …
The apatite-iron-oxide ores of the Grängesberg Mining District (GMD) represents the largest iron ore accumulation in the classic Bergslagen ore province 4, with a past production of 156 Mt of ore ...
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Iron Ore, Kentucky Geological Survey, University of …
Iron Ore. During the late 1800's and early 1900's, Kentucky had a vibrant iron ore industry in many parts of the state. Many mines in eastern and western Kentucky supplied iron ore to approximately 30 furnaces. Most of the …
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88 IRON ORE - USGS
$4.6 billion in 2018. The remaining 2% of domestic iron ore was produced for nonsteel end uses. Seven open-pit iron ore mines (each with associated concentration and pelletizing plants), and three iron metallic plants—one direct-reduced iron (DRI) plant in Louisiana and two hot-briquetted iron (HBI) plants in Indiana and Texas—operated during
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Mining In Texas | The Diggings™
Texas has 680 identified mines listed in The Diggings™. The most commonly listed primary commodities in Texas mines are Copper, Uranium, and Silver .At the time these mines were surveyed, 321 mines in Texas were observed to …
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TSHA | Mineral Resources and Mining - Handbook of Texas
Deposits in Cherokee and Henderson counties are mined chiefly as a source of iron for the manufacture of cement. Several deposits of iron ore minerals are present in Central Texas, such as the magnetite deposits at Iron Mountain in Llano County and the hematitic sandstone deposits in Llano, Mason, McCulloch, and San Saba counties.
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Rock and Mineral Resources of East Texas
State of Texas Advanced Resource Recovery (STARR) Texas Consortium for Computational Seismology (TCCS) Tight Oil Resource Assessment (TORA) Research Program Profiles; Core and Research Facilities; Geophysical Log Facility; Research Laboratories; Researchers' Corner; Publications. Annual Reports and Information; Bureau Store Publication Sales ...
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IRON-BEARING DEPOSITS IN BOSSIER, CADDO, AND …
tion of limonite deposits examined. Texas in the autumn of 1914, and accordingly the writer spent about two weeks in examining the most promising iron-bearing deposits in Bossier and Caddo parishes before proceeding to Texas. Although little encouragement could be offered as a result of these examina
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Iron-formation in South America | U.S. Geological Survey
Except for recent studies by certain South American governmental and quasi-governmental companies and agencies, little effort has been devoted to study of the iron-formations from which the great iron ore deposits of South America formed. Great gaps in basic information exist. Iron-formation is found in the Guayana and Brazilian Precambrian Shields as a common rock type …
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On the magmatic origin of iron ores of the Kiruna type
Abstract. Iron ores of the Kiruna type are unusual formations restricted both in time and space. They are principally found in the Precambrian of Sweden and Missouri. The purpose of the present paper is to summarize the features that characterize the ores and to discuss their origin. It is concluded that the ores are intrusive-magmatic.
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Iron mining in the United States - Wikipedia
Iron ore comes from seven open-pit mines, and two tailings reclamation operations, one in St. Louis County, and one in Itasca County. Three of the mines are operated by Cleveland Cliffs, two by U. S. Steel, and one each by Mesabi Nugget Delaware LLC and Arcelor Mittal S.A.
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A Proposed Hypogenic Origin of Iron Ore Deposits in Southeast …
From 1942 through 1968 there was an active iron ore mining industry in western Fillmore, eastern Mower and southern Olmsted Counties of Minnesota. This iron mining district was 250 miles south of, and the ores were a billion years younger than, the ores of the classic iron mining districts in northern Minnesota. The high grade iron ore was mostly goethite and hematite and …
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TSHA | Ore City, TX - Handbook of Texas
Rich iron ore deposits were discovered in the area during the antebellum period, and ore was mined sporadically from the 1860s through 1900. Around 1910 efforts were made to begin industrial mining of the ore. ... G. H. Baird, A Brief History of Upshur County (Gilmer, Texas: Gilmer Mirror, 1946). Doyal T. Loyd, History of Upshur County (Waco ...
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