Multiple Choice
What is the magma source for mid- ocean ridge basalt?
A) by spontaneous melting in mafic magma chambers within oceanic crust
B) along block faults by frictional heating deep in the oceanic lithosphere
C) It all comes from Hawaii then flows out laterally along the ridge system.
D) decompression melting in the shallowest part of the asthenosphere beneath the ridge
Correct Answer:
Verified
Correct Answer:
Verified
Q43: On average, the slope across a continental
Q45: What thicknesses of unconsolidated sediment typically covers
Q46: Which ocean floor sediment type includes manganese
Q47: How do calcareous oozes form?<br>A) The particles
Q49: Graded bedding is _.<br>A) an upwards decrease
Q50: _consists of diatom and radiolarian remains.<br>A) Terrigenous
Q51: Which of the following about deep ocean
Q52: Which is the best description of a
Q53: Trenches are often parallel to, and genetically
Q86: In terms of distinctiveness in depth and