Inter-basinal Cyclostratigraphic Correlation of Neocomian – Barremian Alam El Buieb Formation in the Northern Part of the Western Desert, Egypt

Document Type : Original Article

Authors

1 Ahmed El-Zomor Street, El Zohour Region

Abstract

CYCLOSTRATIGRAPHIC analysis is a successful tool for the correlation of the distant rock sections. This analysis is used in the present study to correlate of Alam EL Buieb Formation in four wells in the Western Desert of Egypt. The studied sections comprise the members of E, D, C, B and A members in Um Baraka Basin (El Noor-1X, Sallum East-1X and Zayed-1X wells) and Ghazalat Basin (WKAL C-1XST well). The power spectral analysis is used to define the periodicities of continuous G-ray log and revealed great similarities in the values and their ratios. This similarity is used to correlate the studied section based on the filtered data and smoothed filtered data. The correlation result in identification and classification of the studied sections into 20 cycles. The spectral similarity with the 405kyr metronome indicates that the orbital eccentricity controlled the deposition. The local subsidence and sedimentation rates cause only minor changes and did not interfere with cyclic changes preservation.

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History

  • Receive Date: 28 April 2023
  • Revise Date: 08 June 2023
  • Accept Date: 15 June 2023

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