Describe the process of decompression melting
What will be an ideal response?
Reducing confining pressure lowers a rock's melting temperature. When confining pressure drops sufficiently, decompression melting is triggered. Decompression melting occurs where hot, solid mantle rock ascends in zones of convective upwelling, thereby moving into regions of lower pressure.
You might also like to view...
The science and art of cultivating crops and rearing livestock in order to produce food and fiber for sustenance or for economic gain is known as ________/
Fill in the blank(s) with correct word
If the surface stream water in Sample Site 2 is contaminated by the entrance of groundwater, what is a likely source of the contamination? Why?
The question is based on Figure 25-3, a map of a hypothetical landscape with an effluent stream flowing from northeast to southwest. Water table contours are drawn at 2-foot intervals and flow lines show the direction of groundwater movement at the top of the zone of saturation. The waste pit in the north was dug down to a depth just slightly above the water table in that location. A fenced pasture for grazing livestock is in the east. Two wells are shown, and the locations of three water quality sampling sites along the stream are indicated. What will be an ideal response?
Fortunately, logging, slash-and-burn agriculture, and civil war have not impacted the Congo basin.
a. true b. false
Add 2.00 calories to water and its temperature rises. It will rise the same when
A. 83.4 J are added. B. 4.19 J are added. C. 8.38 J are added. D. none of the above