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Question: 10 an outofgrade basin margin is distinguished from a graded...

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10. An out-of-grade basin margin is distinguished from a graded basin margin in having: (a) sediment bypass (b) continuous sediment deposition across the entire basin (c) a slope characterized by erosion and slumping (d) a lesser amount of accommodation space (e) both (a) and (c) 11. Why do deep-sea fans have sequences of beds with opposing dips? (a) a succession of earthquakes during their deposition (b) tidal rocking (o) deposition axes shifting between different lobes as channels avulse (d) oil migration pathway switching (e) naturally induced fracturing 12. A turbidity current? (a) is composed of clastic material mixed with water (b) is denser than seawater (c) deposits sediment in a series of beds and lamina as the current wanes (d) can flow at speeds of tens of kms per hour (e) all of the above apply 13. Submarine fans: (a) are all the same size (b) are found only in nonmarine environments (c) usually have an associated submarine canyon on the continental shelf (d) are always twice as long as wide (e) are more powerful on nuclear powered subs 14. The seaward edge to the shoreface is defined by? (a) the wave base (b) the illumination base (c) the boundary layer base (d) the bioturbation base (e) the subwoofer base 15. The landward edge of the shoreface is defined by? (a) the top of sand dunes (b) the bioturbation edge (c) the lagoonal edge (d) the wave runup edge (e) the high tide level
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