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317296

Textural analysis and environmental implications of the Late Pleistocene-Holocene sediments of the Faiyum paleolake, Egypt

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Last updated: 28 Dec 2024

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Abstract

The Faiyum depression was linked to the Nile River and involved a broad freshwater lake, during most of the Holocene. Grain-size analysis of the lacustrine sediments along 22.7 m long core F3-08 of the Faiyum paleolake has been carried out to expose the mode of transportation, energy, and hydrodynamic conditions, as well as the environmental conditions. The recovered sedimentary sequence consists of predominantly siliciclastic lacustrine facies divided into six informal units. The grain size analysis of the studied sediments shows slight changes in the composition of the sediment mixture between silt and clay with rare occasional sand lenses. The variation in the standard deviation between well-sorted to poorly sorted sediments and from fine skewed to coarse skewed under leptokurtic to platykurtic nature exposes the environmental implications. Bivariate cross plots of grain size parameters, mode of transportation (C-M diagram), and linear discrimination functions (LDF) designate the fluvial nature of sediments and the riverine input. The depositional processes were aquatically controlled through active energy processes of the Nile flood. The graded suspension and suspension with rolling mode (saltation) are both the prime factors for transportation, where the sediments were deposited and reworked by turbidity actions, within a shallow agitated environment.

DOI

10.21608/bjas.2022.317296

Keywords

Grain-size analysis, Lacustrine sediments, Geo-statistical parameters, Holocene, Faiyum, Egypt

Authors

First Name

R.H.

Last Name

Badawy

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Affiliation

Department of Geology, Benha University, Qalubia, Egypt

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First Name

M.A.

Last Name

Hamdan

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Affiliation

Department of Geology, Cairo University, Cairo, Egypt

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First Name

Refaat.

Last Name

A. Osman

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Affiliation

Department of Geology, Benha University, Qalubia, Egypt

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Orcid

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First Name

R.J.

Last Name

Flower

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Affiliation

Department of Geography, University College, London, UK

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Orcid

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First Name

F.A.

Last Name

Hassan

MiddleName

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Affiliation

Cultural Heritage Program, French University, Cairo, Egypt

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Orcid

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First Name

A.M.

Last Name

Afify

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Affiliation

Department of Geology, Benha University, Qalubia, Egypt

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Volume

7

Article Issue

12

Related Issue

38471

Issue Date

2022-12-01

Receive Date

2022-09-14

Publish Date

2022-12-01

Page Start

85

Page End

107

Print ISSN

2356-9751

Online ISSN

2356-976X

Link

https://bjas.journals.ekb.eg/article_317296.html

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https://bjas.journals.ekb.eg/service?article_code=317296

Order

11

Type

Original Research Papers

Type Code

1,647

Publication Type

Journal

Publication Title

Benha Journal of Applied Sciences

Publication Link

https://bjas.journals.ekb.eg/

MainTitle

Textural analysis and environmental implications of the Late Pleistocene-Holocene sediments of the Faiyum paleolake, Egypt

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Article

Created At

28 Dec 2024