Date of Award

2003

Degree Type

Thesis

Degree Name

M.Sc.

Department

Geology

First Advisor

Lakkan, Ch.,

Keywords

Physical Oceanography.

Rights

CC BY-NC-ND 4.0

Abstract

Spatio-temporal difference of grain size distribution at accreting and eroding beaches along the Guyana Coast has been established in this study. Geostatistical techniques of discriminant analysis, two-way analysis of variance and one-way analysis of variance were utilized to obtain the statistical significance of size variation across the beach and between the beaches. The results of discriminant analyses indicate that there is a statistically significant variation of grain size across the beach and between the two beaches. Two way analyses of variance indicate that size is the most significant factor in contributing this variation and one-way analyses of variance indicate that size contributes more than 90% for this variation. The use of Geographical Information Systems has been proven successful in this study. The results of morphometric analyses indicate that the Melanie beach is eroding and the Albion beach is accreting. The change of volumetric erosion between 1994 and 1998 at Melanie beach is 60.22%, and the change of volumetric accretion between 1994 and 1998 at Albion beach is 37.75%. The grain size distribution surfaces of all years including 1994, 1995, 1996, 1997 and 1998 indicate that the Melanie beach is having size fractions finer to coarser over time, whereas the Albion beach is having size fractions coarser to finer over time. The contour surfaces of changes in size distribution from 1998 to 1994 indicate that the changes occur at the Melanie beach from north to south whereas, the changes occur at the Albion beach from east to west, due to difference in energy conditions.Dept. of Earth Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2003 .A75. Source: Masters Abstracts International, Volume: 42-02, page: 0554. Adviser: Ch. Lakkan. Thesis (M.Sc.)--University of Windsor (Canada), 2003.

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