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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ishita Das posted an MCQ
December 12, 2020 • 04:31 am
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30 points
30 points
- IIT JAM
- Geology (GG)
Ascending ore forming fluids within earth's crust give rise to
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Sajan sarthak
The term hypogene is mainly used in the field of ore geology. It describes mineralization within and below the Earth’s crust that is caused by ascending thermal fluids which derive from a magmatic source. Hypogene also often refers to primary, unaltered ore that formed directly from thermal aqueous solutions that derived from great depths
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but hypogene means primary unaltered deposits. here ascending fluid is stated so shouldn't it be stratiform which is a type of hydrothermal deposits ( forms by ascending fluids)
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it can be but ascending term is best suited to hypogene where as supergene to descending ..,.if you encounter multiple question answer it can be taken as answer
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Sajan sarthak Best Answer
already I have told..In ore deposit geology, hypogene processes occur deep below the earth's surface, and tend to form deposits of primary minerals, as opposed to supergene processes that occur at or near the surface, and tend to form secondary minerals. Minerals formed in this way are called primary, or hypogene, minerals.