Posts

How does sediment accumulation affect the bathymetry of a spreading center? Where are the affects more pronounced?

-
How does sediment accumulation affect the bathymetry of a spreading center? Where are the affects more pronounced? Answer: Sediment accumulation will smooth out the bathymetric features and it is more pronounced with greater distance from the spreading center because there has been a longer amount of time for sediments to accumulate.
Post a Comment
Read more

What is occurring at hydrothermal events in terms of water exchange?

-
What is occurring at hydrothermal events in terms of water exchange? Answer: Cold ocean water is seeping through fissures in the crust. When the water comes close to the magma chamber, it is warmed, then rises and boils out of the fissures near the center of the rift zone
Post a Comment
Read more

What is the continental rise? Where is it found?

-
What is the continental rise? Where is it found? Answer: It is formed by the accumulation of sediments at the base of the continental slope and only occurs as passive margins
Post a Comment
Read more

What are the characteristics of a passive margin? Give an example.

-
What are the characteristics of a passive margin? Give an example. Answer: There is little earthquake activity. Faces a divergent plate boundary. Has a broad continental shelf. The Atlantic Ocean
Post a Comment
Read more

What are the characteristics of an active Margin? Give an example

-
What are the characteristics of an active Margin? Give an example Answer: There is earthquake and volcanic activity. Faces a convergent boundary. Narrow continental shelf. Pacific
Post a Comment
Read more

Why does the continental shelf in the Gulf of Mexico have numerous pits or pockmarks?

-
Why does the continental shelf in the Gulf of Mexico have numerous pits or pockmarks? Answer: The Mississippi river and other rivers have deposited large amounts of sediment on the shelf. The weight of the sediments causes salt domes to rise and spread out, the dissolve and collapse. causing the pits
Post a Comment
Read more

What is important about the pockmarks and pits of the Gulf of Mexicos continental shelf?

-
What is important about the pockmarks and pits of the Gulf of Mexicos continental shelf? Answer: They cause oil and gas deposits to rise towards the surface and be more accessible.
Post a Comment
Read more