Textural characteristics of foreshore sediments along Karnataka shoreline,west coast of India
Textural characteristics of foreshore sediments along Karnataka shoreline,west coast of India作者机构:Ocean Engineering DivisionNational Institute of Oceanography(Council of Scientific & Industrial Research)Dona PaulaGoa-403 004India
出 版 物:《International Journal of Sediment Research》 (国际泥沙研究(英文版))
年 卷 期:2011年第26卷第3期
页 面:364-375页
核心收录:
学科分类:070704[理学-海洋地质] 0709[理学-地质学] 07[理学] 0707[理学-海洋科学]
基 金:part of the project on shoreline management plans for Karnataka coast Integrated Coastal and Marine Area Management Project Directorate(ICMAM PD),Ministry of Earth Sciences,New Delhi for funding the project
主 题:Cumulative percentage distribution Central tendency Sorting Skewness Kurtosis
摘 要:Grain character analysis of beach sediments along three selected beaches(Pavinkurve,Kundapura and Padukare)of Karnataka coast,west coast of India is carried out in the present *** objective was to identify the textural behavior of beach sediments during an annual cycle from March 2008 to February *** characteristics such as central tendency,sorting,kurtosis and skewness were estimated using GRADISTAT and *** maximum(62%)sediment samples were medium sand with unimodal and bimodal characters at all the three *** median values varied in between-0.04φand 2.74φwith an average value of 1.61φ.The beaches were characterized as well sorted,moderately well sorted and moderately sorted sediment *** were identified as fine skewed to coarse skewed with platykurtic,mesokurtic and leptokurtic characters. Grain characteristics varied spatially and temporally along with beach orientation,foreshore slope and wave action.A negative correlation between mean and sorting is identified for maximum number samples along the study region but not very *** study shows that the sedimentary environment at Kundapura were influenced by relatively high wave action compared to Padukare and Pavinkurve beach and the beaches were under erosion or non-deposition with strong winnowing process.