How do Hydrothermal ore deposits form? Yahoo

2008-7-27  How Does Iron Ore Form? Nearly all of Earth's major iron ore deposits are in rocks that formed over 1.8 billion years ago. At that time Earth's oceans contained abundant dissolved iron and almost no dissolved oxygen. The iron ore deposits began forming when the first organisms capable of photosynthesis began releasing oxygen into the waters.

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how do minerals form from solution? Yahoo Answers2013-4-30Where were the metals before they were2012-10-21How do mineral deposits form along mid2008-11-13查看更多结果

How do hydrothermal mineral deposits form Answers

Hydrothermal deposits form from hot, metal-rich fluids that are left during the late stages of the movement and colling of magma.

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Hydrothermal mineral deposit geology Britannica

2020-7-19  Hydrothermal mineral deposit, any concentration of metallic minerals formed by the precipitation of solids from hot mineral-laden water (hydrothermal solution).The solutions are thought to arise in most cases from the action of deeply circulating water heated by magma. Other sources of heating that may be involved include energy released by radioactive decay or by faulting of the Earth’s

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how do mineral deposits form? Yahoo Answers

2008-10-15  There are text books written about that subject...one of the best is "The Geology of Ore Deposits" by Park and Guilbert. There are many methods of ore formation, here are a few: hydrothermal (hot circulating metal-bearing waters) magmatic segregation (layered intrusions) placer (gravity concentration) sea floor vents (submarine exhalative)

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where does most of the metal come from to2019-8-22IMPORTANT USES OF BORNITE? Yahoo Answers2011-4-19How is an emerald formed? Yahoo Answers2009-10-28How is the mineral deposit ZINC formed? Yahoo Answers2009-2-28查看更多结果

How did vein mineral deposits get underground

Hydrothermal Ore Deposits Concentration by hot aqueous (water-rich) fluids flowing through fractures and pore spaces in rocks. Hydrothermal deposits are produced when groundwater circulates to

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Where were the metals before they were Yahoo

2009-11-10  We sponsor the publication of research relating to ore deposits and metallogeny . -discordant nature with veins concentrated on limb areas of antiformal structures; . 40 Ar/39Ar dating of hydrothermal vein minerals (amph, ms, . Many of the deposits mentioned in this stone were visited during various stages

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how do veins (minerals) form? Yahoo Answers

2006-10-8  Yahoo Products; Promoted. xlexgs400x. xlexgs400x asked in ScienceMathematics Earth SciencesGeology 1 decade ago. how do veins (minerals) form? Answer Save. 7 Answers. Relevance. Now and Then Comes a Thought. Lv 6. 1 decade ago. Favourite answer.

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What are the four ways that a mineral can form?

2014-8-12  Precipitation from water (chemical sedimentary rocks, hydrothermal ore deposits) Biological activity (biochemical sedimentary rocks) Change to more stable state (the processes of weathering, metamorphism, and diagenesis). Precipitation from vapor. (not common, but sometimes does occur around volcanic vents) Evaporation of mineral rich solutions

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Where are vein mineral deposits found and how

plate tectonics. Please research that subject for more info. I can answer that! Major gold deposits are usually found deep underground, but this gold was they went to mine in the Sierra Nevada.

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Mineral deposit Hydrothermal solution Britannica

Hydrothermal solution. Hydrothermal mineral deposits are those in which hot water serves as a concentrating, transporting, and depositing agent. They are the most numerous of all classes of deposit. Hydrothermal deposits are never formed from pure water, because pure water is a poor solvent of most ore minerals. Rather, they are formed by hot brines, making it more appropriate to refer to them

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Is copper found in Igneous, Metamorphic or

2010-6-21  The third and fourth answers are of course the right ones. To give a bit more detail, in recent decades say, the last 50 years by far the most copper has come from porphory deposits, which are basically igneous. But important deposits are known in sedimentary rocks,and in metamorphic rocks (such as at Ducktown, Tennessee).

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What mineral deposits do you have in the Philippines

Deposits which form from the ceiling are stalactites. Ore deposits 'Selected bibliographies of hydrothermal and magnetic mineral deposits' -- subject(s): Bibliography, Mines and mineral

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What places in the Philippines are rich in mineral

The Philippines is rich in terms of mineral resources. The places where minerals are in the mountainous regions of the archipelago.

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in which form are the deposits of iron found?

in which form are the deposits of iron found. What are the various types of minerals found in India. Iron is found in the earths surface in its crude form known as iron ore. India has huge deposits of iron ore in Bihar, Orissa, Madhya Pradesh, Karnataka and Maharashtra. We have one fourth of the worlds finest iron ore deposits in India.

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The Cost Of India 2Nd Stage Stone Crusher Plant 80

cost of 80 tph 2 stage stone crusher plant in india. The cost of Algeria 2nd stage stone crusher plant 80 tph. cost of 80 TPh 2 stage stone crusher plant in india. cost of 80 TPh 2 stone 100t crushing plant youtube ; 880000 / set concrete and coal belt conveyor 100t/hr and as the second stage in two stage Home Rock Crushing Plant puzzolana jaw. cost of 80 tp h crusher plant in india jayveeband.

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Small Scale Alluvial Gold Mines South Africa| World

Mill, South Africa Wikipedia OverviewExternal links. Mill in South Africa was the site of a short-lived gold rush in the 1880s. Mill Mining Village was located in the foothills of the Outeniqua Mountains near Knysna and had a population of a few hundred at the height of its small-scale mining activity which lasted only five years, largely due to the difficulty of following the

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How Do You Process Tin Ore SYSSLA

Tin Ore Civiliation Wars Wiki Fandom. 2013-12-31Tin Ore is an ore block added by Civiliation Wars. It must be mined with a stone pickaxe or a pickaxe of a higher tier in order to drop its ore block. Tin ore is required as part of the process to make a brone ingot.. Veins Edit.

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What is the chemical formula of sphalerite?

The Mineral sphaleriteChemical FormulaZnS The above is the formula of pure Sphalerite. However, since it usually occurs with some iron replacing the zinc, its formula can be more accurately described as (Zn,Fe)STransparencyTransparent to opaqueSpecific Gravity3.9 4.1LusterMetallic, sub-metallic, adamantine, resinous

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science help!!!!!! iron ore??? ONLY 3 Yahoo

2010-9-29  1. Iron ore contains O2, which needs to be removed, so during the smelting process C is used to attract the O2 molecules away from the Fe. The C-O2 bond is stronger than the Fe-O2 bond. 2. Oxygen (O2) needs to be removed. 3. A native metal is any metal that is found in its metallic form

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how long does it take for gold to form? Yahoo Answers

2011-4-15  This gold ore is often found together with quartz or sulfide minerals such as Fool's Gold, which is a pyrite. These are called lode deposits. Native gold is also found in the form of free flakes, grains or larger nuggets that have been eroded from rocks and end up in alluvial deposits (called placer deposits).

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in which form are the deposits of iron found?

in which form are the deposits of iron found. What are the various types of minerals found in India. Iron is found in the earths surface in its crude form known as iron ore. India has huge deposits of iron ore in Bihar, Orissa, Madhya Pradesh, Karnataka and Maharashtra. We have one fourth of the worlds finest iron ore deposits in India.

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(PDF) Sedimentary Manganese and Iron Ore Deposits

Two strategies have been chosen for the exploitation of El-Gedida high-Mn iron ore containing 46.37 wt.% Fe and 7.53 wt.%Mn. The first one included magnetic roasting and subsequent low intensity

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Sٍedimentary manganes and iron ore deposits

2015-11-23  Ironstone (oolitic) Deposits are dominantly Phanerozoic sedimentary deposits that form poorly-banded or nonbanded bedded successions. commonly have an oolitic texture and may contain fossils that have been partially or completely replaced by iron. Sedimentary structures (i.e. cross-bedding) are common. All ore minerals in these deposits are

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How Do You Process Tin Ore SYSSLA

Tin Ore Civiliation Wars Wiki Fandom. 2013-12-31Tin Ore is an ore block added by Civiliation Wars. It must be mined with a stone pickaxe or a pickaxe of a higher tier in order to drop its ore block. Tin ore is required as part of the process to make a brone ingot.. Veins Edit.

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what is dolomite ore thebushlodge.co.za

Dolomite may form as a hydrothermal replacement mineral and, as such, is especially abundant as a gangue mineral in the ore deposits of the Upper Mississippi Valley zinc-lead district in southwestern Wisconsin. Ferroan dolomite appears in several of the state’s Precambrian iron formations. Finally, dolomite locally occurs in the state in marbles.

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how is a mineral classified as a ore

Oct 04, 2006 Best Answer: * Hematite is a mineral that can also be called an ore. A mineral is an ore if it contains a useful substance that can be mined at a profit. Aluminum can be refined from bauxite and made into the useful products.

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How Early Life Left Hydrothermal Vents Origin of LIfe

Primitive pumps that maintained the internal environment of primitive proto-cells may have allowed the earliest life forms to leave deep-sea hydrothermal vents for Earth's early oceans.

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Geology Exam 3 Flashcards Quizlet

Such deposits may form within an igneous intrusion or in surrounding country rock. disseminated vs. vein (hydrothermal deposits) from the process of a hydrothermal deposit, if the resulting ore minerals disperse through the intrusion, we call the deposit a ___ deposit. But if they precipitate to fill cracks in preexisting rock, we call the

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More Evidence Against So-Called Paleokarst Answers

Silvestru25 explains that aqueous solutions can exist at considerable depths because of hydrothermal activity. Consequently, karst-like features can form at great depth. They do not require a subaerial erosional surface to be exposed for long periods to allow meteoric water to percolate through and enlarge the joints within the carbonate rocks.

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Gold Answers in Genesis

2010-12-8  More than 72% of the Creation Week gold deposits are in secondary placer deposits, the rest being in primary vein and lode deposits associated with God’s continent-building processes. H. E. Frimmel, “Earth’s Continental Crustal Gold Endowment,”

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