Which of the following sedimentary structures would we expect to find associated

Question

Which of the following sedimentary structures would we expect to find associated with a turbidite deposit, where particles are settling out of the water column based upon the clast size? Graded Bedding Varves Inverse Bedding Mud Cracks An outcrop of marine sedimentary rocks shows the following sequence of strata from bottom to top: sandstone, shale, limestone, chalk. This sequence represents a _____ in sea level known as _____. a. Rise: transgression b. Rise: progression c. Fall: subsidence d. Fall: regression

Explanation / Answer

31)Graded breeding

This structure happens once current speed changes and grains square measure more and more born out of the present. the foremost common place to search out this can be in an exceedingly turbidite deposit. this will even beinverted, referred to as reversed stratified bedding, and is common in rubbish flows.

32) d.FALL:REGRESSION

A regressive matter sequence represents the lowering of water level and also the retreat of the ocean from the low-lying land. it's the reverse of a transgressive sequence. A regressive sequence within the stratigraphic record would be, from the lowest up, limestone-shale-sandstone.

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