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Is gold found in igneous, metamorphic, or sedimentary rocks?

Answer (1 of 3): Gold can be found in all three types of rocks. I have found gold in igneous and metamorphic rocks. Gold in igneous and metamorphic rocks is often found along with one or more of pyrite, quartz, copper, arsenic. But the most common matrix for gold relevant to the weekend gold pann...

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Is gold found in igneous sedimentary or metamorphic rock ...

Is gold found in igneous sedimentary or metamorphic rock? Wiki User. ∙ 00:09:47. Add an answer. Want this question answered? Be notified when an answer is …

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Is gold found in metamorphic rock? – Colors-NewYork.com

Is gold found in metamorphic rock? Gold usually comes detachment veins hosted in metamorphic rocks such as quartz and slate which being eroded by floods igneous type (basalts, peridotites, andesites, granites, breccias and other large volume of coarse grains especially) that although gold is not specifically formed igneous bedrock drag him to these …

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Gold in lgneous,Sedimentary, And Metamorphic Rocks - USGS

Analyses of gold in metamorphic rocks made before 1955-----Analyses of gold in metamorphic rocks made since 1954----- Average gold content of metamorphic rocks-----III Page 2 4 8 15 15 16 19 22 ... Phillips (1967), for example, found that the gold con ...

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In What Rock Formations Can Gold Be Found? | Sciencing

Quartz. •••. Nastya22/iStock/Getty Images. Gold is most often found in quartz rock. When quartz is found in gold bearings areas, it is possible that gold will be found as well. Quartz may be found as small stones in river beds or in large seams in hillsides. The white color of quartz makes it easy to spot in many environments.

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(PDF) Gold in Metamorphic rocks: Facts and Fancy

GOLD IN METAMORPHIC ROCKS: FACTS AND FANCY. Fig. 1 – A possible, fractal-like, classification of mineral deposits, in which the shear zone. related ores have a symmetrical position to the ...

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What type of metal is found in metamorphic rocks? - Quora

Answer: Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means "change in form". The protolith is subjected to heat (greater than 150 degrees Celsius) and extreme pressure causing profound physical and/or chem...

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where is metamorphic rock frequently found - Lisbdnet.com

Where Is Metamorphic Rock Frequently Found? These conditions are most often found either deep in Earth's crust or at plate boundaries where tectonic plates collide.In order to create metamorphic rock, it is vital that the existing rock remain solid and not melt.

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Gold Deposits in Metamorphic Rocks: What We Know and Why ...

A crustal or subduction-zone metamorphic model remains the most viable ore-genesis model that can be applied globally, with sulfur and gold released from prograde metamorphism of pyrite at depth. In Phanerozoic terranes, metasedimentary rock sequences are potentially an important fluid and

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Gold in lgneous,Sedimentary, And Metamorphic Rocks - USGS

Sedimentary rocks contain as little as 0. 3 to as much as 41 ppb gold. The average of 5.0 ppb is based on the average of 7.5 ppb for sandstone, 3. 9 ppb for shale, and 3. 5 ppb for limestone. In metamorphic rocks the range of gold content is from 0.86 to 22.4 ppb with an average of 4. 3.

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Gold Deposits in Metamorphic Rocks: What We Know and Why ...

ABSTRACT: GOLD DEPOSITS IN METAMORPHIC ROCKS: WHAT WE KNOW AND WHY ARE WE GETTING MORE CONFUSED Richard J. Goldfarb, Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, Colorado 80401, USA. Orogenic gold deposits represent the main source of gold in the world's deformed Phanerozoic-

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Gold is found mostly in igneous or metamorphic rocks. When ...

Gold is found mostly in igneous or metamorphic rocks. When water acts upon these rocks, gold may be carried and distributed to streams. Which process is - 11845465

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Is gold found in metamorphic rock? – Colors-NewYork.com

Gold usually comes detachment veins hosted in metamorphic rocks such as quartz and slate which being eroded by floods igneous type (basalts, peridotites, andesites, granites, breccias and other large volume of coarse grains especially) that although gold is not specifically formed igneous bedrock drag him to these … How can you tell a rock is gold?

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Background concentrations of gold in different rock types ...

Background concentrations of gold in different rock types. The abundance of gold in crustal rocks is an important constraint on the formation of gold deposits. Gold concentrations in unmineralised igneous, sedimentary and metamorphic rocks range from 0·05 to 20 ppb with average concentrations commonly between 0·5 and 5 ppb.