The direction of ancient currents in woven river deposits in general a. Unimodal nature b. Polymodal nature

Applications and Investigations in Earth Science (9th Edition)
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ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Chapter1: The Study Of Minerals
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The direction of ancient currents in woven river deposits in general
a. Unimodal nature
b. Polymodal nature
c. Polynomial
d. No indication of current direction

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Step 1

Geological features and sedimentary structures are few such components which helps in estimating either the direction of the flow or sometimes the top and bottom of the beds. River channels which help in estimating the ancient direction according to the direction of flow are known as paleo channels. 

Other features such as ripple marks, sand dunes, tool marks are some other examples which help in estimation of the prior direction.

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