Title
Sedimentology of the Pindiga Formation, Gongola Basin, NENigeria: Lithostratigraphy, Facies, and Clay Mineralogy of the Middle ,Used
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An integrated studies was conducted on the Middle Pindiga Formation (Dumbulwa, Deban Fulani and Gulani Members) involving facies analysis and clay mineralogy. Ten lithosections were studied within the outcropping belt of the Gongola Basin, which include: Badabdi, Yayaru Daura, Nguzwa, Chole sections from Dumbulwa Member; Dampami, Sabongarin Zambuk and Deba (Borrow Pit) sections from Deban Fulani Member; and Dogon Zaga, Gulani and Maliya sections from Gulani Member. Based on facies sequences and associations, shallow marine, estuarine and braided river systems were identified as the major environments of depositions. Clay mineralogical analysis reveals that the Dumbulwa Member mudstones/claystones are dominated by kaolinite with minor illite, while the Gulani and Deban Fulani Members are dominated mainly by kaolinitemontmorillonite and Kaolinitemontmorilloniteillite respectively as the clay mineral assemblages while quartz, feldspars and heamatite are the nonclay minerals associated with the entire sediments. Preliminary petrophysical analysis indicates that the sandy members have good reservior qualities.
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This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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