Answered

Graded beds are

A. metamorphic structures with larger grains located on the bottom and smaller grains on the top
B. igneous structures with larger grains located on the bottom and smaller grains on the top
C. sedimentary structures with larger grains on the bottom and smaller grains on the top
D. metamorphic structures with the smaller grains on the bottom and larger grains on the top
E. sedimentary structures with the smaller grains on the bottom and larger grains on the top



Answer :

GinnyAnswer

Final answer:

Graded beds in sedimentary rocks show a gradation in grain size from bottom to top, offering insights into past depositional environments and processes.


Explanation:

Graded beds are sedimentary structures where a change in grain size is observed within a single layer of rock. They typically have larger grains at the bottom and smaller grains at the top, reflecting changes in transport energy or rapid depositional events like turbidity currents.

Graded beds can serve as indicators of younging direction and are crucial in understanding the history of sedimentary rock formations. The gradation in grain size within these beds provides valuable insights into past depositional environments and processes.


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