A succession of beds where each is a tabular massive layer with more coarse material at its base and fines near the top is called ________.
A) cross-beds and indicates dunes, deltas, or migrating channels
B) graded beds and indicates deep water turbidity currents off the continental slope
C) hummocky cross stratification and indicates a deposit formed by storm enhanced waves or currents
D) current ripple marks caused by reversing current directions or tides
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