Biostratigraphy of Jeribe Formation in Selected Wells Mansuriyha Gas Field, Eastern Iraq

Q3 Earth and Planetary Sciences
Hamza Mahmood, Luay S. Shakir
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引用次数: 0

Abstract

Among the most important formations to be deposited during the Tertiary period was the Jeribe Formation. It has been investigated in two wells (Mn-1 and Mn-2) in the eastern Iraqi Dyala Government's Mansuria Oil Field. To identify fauna, 65 thin sections are examined under a microscope. Benthonic Foraminifera and limestone, occasionally dolomitized, make up its composition. There are twenty species of coralline and foraminiferan algae known to science. There were two unique biozones in the range. These biozones are the Ammonia beccria Linne Range Zone (Middle Miocene) and the Borelis melo curdica (Reichel) Range Zone (Early Miocene). The age of the formation was estimated to be Early Middle-Miocene based on these biozones of Foraminifera and other fossils such as gastropods, pelecypods, coral, fossils, Brayozoa, shell fragments, Echinoderm, echinoid plate, and echinoid spine.
伊拉克东部 Mansuriyha 气田部分井中杰里贝地层的生物地层学
第三纪时期沉积的最重要地层是杰里贝地层。伊拉克 Dyala 政府东部 Mansuria 油田的两口油井(Mn-1 和 Mn-2)对该地层进行了调查。为了识别动物群,在显微镜下对 65 个薄切片进行了检查。底栖有孔虫和石灰岩(偶尔白云石化)是其组成成分。科学界已知的珊瑚藻和有孔虫藻有 20 种。该山脉有两个独特的生物区。这两个生物区分别是 Ammonia beccria Linne Range 区(中新世中期)和 Borelis melo curdica (Reichel) Range 区(中新世早期)。根据这些生物带的有孔虫和其他化石(如腹足类、卵足类、珊瑚、化石、糠虾类、贝壳碎片、棘皮动物、棘皮动物板和棘皮动物脊),估计该地层的年龄为早中新世。
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来源期刊
Iraqi Geological Journal
Iraqi Geological Journal Earth and Planetary Sciences-Geology
CiteScore
1.80
自引率
0.00%
发文量
152
审稿时长
7 weeks
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