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Rafidain Journal of Science

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Microfacies and Paleoenvironment of Sinjar Formation (Paleocene-Early Eocene), Sinjar Area, Northern Ir

    Thanoon A. Thanoon Majid M. Al-Mutwali Mumtaz A. Amin

Rafidain Journal of Science, 2005, Volume 16, Issue 1, Pages 1-20
10.33899/rjs.2005.41386

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Abstract

Micofacies analysis and faunal evidence from the stratigraphic sequence of Sinjar Limestone Formation (Paleocene-Early Eocene) integrate three units accumulated in different zones on an isolated platform with bank-ramp depositional profile. These include: (1) a bank-rim buildup composed of red algae with subordinate coral boundstones, and interior bank dominated by nummulitic shoal-bar grainstone, (2) a backbank lagoon-bay of finer-grained carbonates punctuated by miliolids-alveolinids shoal bar and green algae, and (3) forebank rudstones-grainstones of red algal-coral and Nummulites. Paleoecological deduction point to a warm-temperate climate with colder periods during the overgrowth of red-algal bank which had not acted as effective barrier to water circulation. The genesis of the Sinjar carbonate bank can be expressed by alveolinids, miliolids and Nummulites as inner-middle ramp deposits of euphotic-mesophotic zone comprising foram shoals-lagoon-bay behind the domain of coralgal bank in meso-oligophotic zone.
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(2005). Microfacies and Paleoenvironment of Sinjar Formation (Paleocene-Early Eocene), Sinjar Area, Northern Ir. Rafidain Journal of Science, 16(1), 1-20. doi: 10.33899/rjs.2005.41386
Thanoon A. Thanoon; Majid M. Al-Mutwali; Mumtaz A. Amin. "Microfacies and Paleoenvironment of Sinjar Formation (Paleocene-Early Eocene), Sinjar Area, Northern Ir". Rafidain Journal of Science, 16, 1, 2005, 1-20. doi: 10.33899/rjs.2005.41386
(2005). 'Microfacies and Paleoenvironment of Sinjar Formation (Paleocene-Early Eocene), Sinjar Area, Northern Ir', Rafidain Journal of Science, 16(1), pp. 1-20. doi: 10.33899/rjs.2005.41386
Microfacies and Paleoenvironment of Sinjar Formation (Paleocene-Early Eocene), Sinjar Area, Northern Ir. Rafidain Journal of Science, 2005; 16(1): 1-20. doi: 10.33899/rjs.2005.41386
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