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aivan3 [116]
3 years ago
11

8. __________________ occurs at ocean ridges, whereas __________________ occurs at subduction zones.

Geography
2 answers:
VladimirAG [237]3 years ago
3 0

Answer:

(b) Decompression melting , flux melting

Explanation:

Decompression melting : The procedure of decompression melting includes the upward development of the earth mantle to a zone of lower pressure. The decrease in overlying weight empowers the stone to melt, prompting magma arrangement. Magma is shaped by the melting of the earth mantle.

Flux melting :I n molten petrology and volcano logy, flux melting  happens when water and other unstable segments are added to hot strong shake. In designing and metallurgy, transition is a substance, for example, salt, that creates a low dissolving point blend with a metal oxide.

Similarly, the expansion of water and other unstable mixes to rocks made out of silicate minerals brings down the softening temperature of those stones.

marishachu [46]3 years ago
3 0

Answer:

The correct answer is option b. Decompression melting; flux melting.

Explanation:

The Decompression melting process takes place in mid-ocean ridges.

What happens here is that <u>two plates are separated, and the space between them is filled with hot rock</u> that emerges from below. If this rock rises quickly before it can cool, <u>it melts as the pressure drops as the rock approaches the surface. </u>

Flux melting occurs when a <u>solid rock is hot and receives water or other volatile components.</u> This process is found in the subduction zones, where the rock of the upper mantle is melted by the addition of these materials that come from the descending plate.

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D

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Explanation:
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