1- Ocean basins are created by _________. 2- Traveling through the rock layers j

Question

1- Ocean basins are created by _________.

2- Traveling through the rock layers just below Earth surface, _______ are responsible for most damage during earthquakes.

3- A __________ fault results from shear stress.

4- Subduction zones are marked by ______, large reverse faults are responsible for the largest earthquakes recorded in history.

5- What geological setting(s) would you expect to produce seismic activity?

6- A convergent boundary is associated with a(n) ______ continental margin?

7- Which type of plate boundary is associated with most of Earth’s major mountain belts?

8- Ophiolite complexes contain slices of oceanic crust that have been thrust above sea level. They have four distinct layers (from top down): deep sea sediment, pillow basalts, ________________, and gabbro.

9- Active continental margins are typically characterized by _______________.

10- Groundwater is an important resource for humans; therefore, it is important to understand associated environmental problems such as ____________.

A- Contamination/pollution

B- Subsidence

C- Saltwater Intrusion

D- All of the above

Explanation / Answer

1) Generally oceanic basins are created by spreading centers by divergent forces. At these sites the basaltic erruptions are placed and mostly pillow structured basalts are occured here. We can not identify the oceanic crust that older than Jurassic age. Because the oceanic crust is eventually subducted. The present active spreading centers are Mid oceanic ridges and Red sea etc..

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