Unveiling Preliminary Study of the Holocene Sedimentary Environments and Biofacies in Western of Al-Hammar Marsh, Southern Part of Iraq

Khaleel J.  Al-Sudani; Maher Mandeel Mahdi; Badir N.  Albadran

Article Details

Unveiling Preliminary Study of the Holocene Sedimentary Environments and Biofacies in Western of Al-Hammar Marsh, Southern Part of Iraq

Authors:

Khaleel J. Al-Sudani | Maher Mandeel Mahdi | Badir N. Albadran

Publisher:

Iraqi Geologists Union (Union of Iraqi Geologists)

Journal:

The Iraqi Geological Journal Vol.57 Issue 2D, pp.187-196

Document Type:

Article

Publication Date:

10/2024

Document Language:

English

Document ID (Org No.):

2001836690

pISSN:

2663-8754

Keywords:

Abstract:

 Biofacies and sedimentary environment analyses were conducted across three sites west of Al-Hammar Marsh. Excavations were undertaken at different depths for a comprehensive study. The initial site was probed at 9 m depth, followed by the second site at 5 m, and the third site at 9 m. Subsequent examination of these samples aimed to unveil insights into grain size, fossil contents, and their respective ecological settings. The grain size analysis revealed three distinct sediment types: silt, sandy silt, and muddy sand. Additionally, fossil assemblages hinted at three primary biofacies. The first facies represented a fresh marsh-fluvial environment identified across all three sites at different depths. Specifically, this biofacies manifested from the surface to about 200 cm in site one, 50-150 cm in site two, and 50-250 cm in site three. The second biofacies indicated a shallow marine environment at depths ranging from 250 to 550 cm in site one, 200-300 cm in site two, and 300-650 cm in site three. Lastly, the third biofacies denoted a lagoon or tidal flat environment observed at 600-900 cm depths in site one, 300-500 cm in site two, and 700-900 cm in site three. Notably, the third biofacies in site three exhibited signs of influence from alkaline freshwater, particularly in the third location at a depth of 700-800 cm. This influence was attributed to a mixture of marine and freshwater species, including; Quinqueloculina candeiana, Quinqueloculina angulta, Cubicula fluminalis, and Melanoides tuberculate. Abundant occurrences of these species were noted in the silty clay lithology of this layer.

Article Details

Unveiling Preliminary Study of the Holocene Sedimentary Environments and Biofacies in Western of Al-Hammar Marsh, Southern Part of Iraq

Authors:

Khaleel J. Al-Sudani | Maher Mandeel Mahdi | Badir N. Albadran

Publisher:

Iraqi Geologists Union (Union of Iraqi Geologists)

Journal:

The Iraqi Geological Journal Vol.57 Issue 2D, pp.187-196

Document Type:

Article

Publication Date:

10/2024

Document Language:

English

Document ID (Org No.):

2001836690

pISSN:

2663-8754

Biofacies

environments

Holocene

Mesopotamia

Iraq

Issues

Article Details

Unveiling Preliminary Study of the Holocene Sedimentary Environments and Biofacies in Western of Al-Hammar Marsh, Southern Part of Iraq

Authors: Khaleel J. Al-Sudani | Maher Mandeel Mahdi | Badir N. Albadran

Publisher: Iraqi Geologists Union (Union of Iraqi Geologists)

Journal: The Iraqi Geological Journal Vol.57 Issue 2D, pp.187-196

Document Type: Article

Publication Date: 10/2024

Document Language: English

Document ID (Org No.): 2001836690

pISSN: 2663-8754

Biofacies

environments

Holocene

Mesopotamia

Iraq

Issues

Authors:

Khaleel J. Al-Sudani | Maher Mandeel Mahdi | Badir N. Albadran

Publisher:

Iraqi Geologists Union (Union of Iraqi Geologists)

Journal:

The Iraqi Geological Journal Vol.57 Issue 2D, pp.187-196

Document Type:

Article

Publication Date:

10/2024

Document Language:

English

Document ID (Org No.):

2001836690

pISSN:

2663-8754