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Geology
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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...

Answered by Joseph T. Geology tutor
80505 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 zon...

Answered by Lewis H. Geology tutor
12729 Views

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

Answered by Jamaal P. Geology tutor
4115 Views

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 sed...

Answered by Ben W. Geology tutor
4909 Views

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 ve...

Answered by Ben W. Geology tutor
18620 Views

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