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Sedimentary structures and palaeocurrents of the Siwaliks exposed between the Yamuna and Gola Rivers, U.P. (India)

Published online by Cambridge University Press:  01 May 2009

B. Parkash
Affiliation:
Department of Geology and GeophysicsUniversity of RoorkeeRoorkee, U.P., India
I. P. Bajpai
Affiliation:
Department of Geology and GeophysicsUniversity of RoorkeeRoorkee, U.P., India
H. P. Saxena
Affiliation:
Department of Geology and GeophysicsUniversity of RoorkeeRoorkee, U.P., India

Summary

The present paper deals with sedimentary structures and palaeocurrents of the Siwaliks exposed between the Yamuna and Gola rivers, U.P., India. Typical sedimentary structures observed in the Lower and Middle Siwalik formations are: cross-bedding, rib-and-furrow structure, parting lineation, plane-laminations and worm burrows. Also the Lower and Middle Siwaliks exhibit a typical, cyclic development of sedimentary bed forms and structures characteristic of flood plain deposits. A study of cross-bedding foreset azimuths indicates south-westerly and southerly paleocurrent directions for the Lower and Middle Siwaliks respectively. Distributions of pebble orientations from the Upper Siwalik have significant preferred orientations along both N–S and E–W directions.

Type
Articles
Copyright
Copyright © Cambridge University Press 1974

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