Interpretation of Dune Genesis from Sedimentogical Data and Ground Penetrating Radar (GPR) Signatures: A Case Study from Ashirmata Dune Field, Mandvi Beach, Gujarat, India

Autor:	Vipul Silwal, Koravangatt Devi, Deshraj Trivedi, K. Ravisankar, P. Srinivasan, Rajesh R. Nair, Ilya V. Buynevich, Debashish Sengupta
Rok vydání:	2012
Předmět:	Delta Longshore drift Indus Ground-penetrating radar Storm Slip (materials science) Tidal Waves Paleosol Geomorphology Geology
Zdroj:	International Journal of Geosciences. :772-779
ISSN:	2156-8367 2156-8359
DOI:	10.4236/ijg.2012.34078
Popis:	The coastal dunes located near the Ashirmata region, south of Mandvi beach lies near the straight coast have been stud-ied by making use of sedimentological information and Ground Penetrating Radar (GPR) data. Sedimentological analy-sis reveals the NNW-SSE trending longitudinal dunes consists of well sorted fine sands with unimodal distribution pos-sibly formed by constant wind gust and also the point out to the origin of sediments from single source; mostly the sediments derived from Indus delta transported to beach by long shore drift and tidal waves, carried inland by local on-shore winds. The radargram confirms, the homogenous sand layers with paleosols at shallow depth slip faces are proba-bly formed due to extreme storm activity of Recent.
Databáze:	OpenAIRE
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