Top answers

What is the difference between a Normal Fault, a Reverse Fault, and a Strike-Slip Fault?

Normal Faults and Reverse Faults are "Dip-Slip" Faults - they experience vertical movement, in line with the dip of the fault. They are identified by the relative movement of the Hanging Wall and F...
JT
Answered by Joseph T. • Geology tutor
89364 Views

Why is heat flow over a mid-ocean ridge higher than over an oceanic trench?

To understand the answer to this question we must first consider the dynamics and structure of each of these plate margins. Oceanic trenches form at subduction zones. At a subduction zone dense oceanic crust...
LH
Answered by Lewis H. • Geology tutor
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What are the properties of the asthenosphere?

(5%) partially molten, low rigidity/plastic/rheid, allows the movement of the plates and mostly composed of peridotite
JP
Answered by Jamaal P. • Geology tutor
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Describe how a delta forms.

Deltas form where rivers transporting sediment enter a calmer body of water such as a lake or sea and there is a decrease in the energy of the system. The reduction in energy of the flow causes the sediment ...
BW
Answered by Ben W. • Geology tutor
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Describe the differences between regional and contact metamorphism.

Metamorphism is the the solid state change of minerals and textures within a pre existing rock (country rock) as a result of changing pressure/ temperature conditions. Fluids such as H2O also play a very imp...
BW
Answered by Ben W. • Geology tutor
21283 Views