What is the geothermal gradient? Describe how the geothermal ...

[magmichele12]

What is the geothermal gradient? Describe how the geothermal gradient compares with the melting temperatures of the mantle rock peridotite at various depths.
 
  What will be an ideal response?

Question 2

G. Hadley's ideas about atmospheric circulations were concerned with the:
 
  A) microscale. B) synoptic scale. C) macroscale. D) mesoscale.

[princessflame2016]

Answer to Question 1

The geothermal gradient is an increase in temperature with depth, which varies from place to place, averaging about 25C per kilometer in the upper crust. A typical geothermal gradient is compared to the melting point curve for the mantle rock peridotite; the temperature at which peridotite melts is higher than the geothermal gradient. Thus, under normal conditions, the mantle is solid.

Answer to Question 2

C

[magmichele12]

Thanks for the timely response, appreciate it

[zacnyjessica]

Excellent