Please use this identifier to cite or link to this item:
Authors: Derder, M. E. M.* 
Henry, B.* 
Merabet, N.* 
Bayou, B.* 
Amenna, M.* 
Title: Paleomagnetism of the Liassic member of the Zarzaïtine Formation (stable Saharan craton, Illizi basin, Algeria)
Issue Date: Oct-2001
Series/Report no.: 5-6/44 (2001)
Keywords: Africa
paleomagnetic pole
apparent polar wander path
sahara craton
Subject Classification04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism 
Abstract: A paleomagnetic study was carried out in the carbonates and marls of the Liassic member of the Zarzaïtine Formation of the Illizi basin (SE Algeria) deposited in a continental environment. Two magnetization components were identified. The first, defined at relatively low blocking temperature, was isolated in five sites, and yields the following paleomagnetic pole (80.8°N, 20.1°E, K = 811 and A 95 = 2.2°). This magnetization is considered an overprint acquired during Cenozoic times. The second component was defined by both normal and reversed polarity. The normal polarity was identified in fourteen sites using both linear regression and great circles. The reversed one was inferred in four sites from the remagnetization circle and demagnetization path analyses. This component is mainly (it could be in part the primary magnetization) a late diagenesis magnetic overprint. It yields a new Liassic pole (71.8°S, 54.9°E, K = 91 and A 95 = 3.9°) for Africa.
Appears in Collections:Annals of Geophysics

Files in This Item:
File Description SizeFormat
03.pdf5.57 MBAdobe PDFView/Open
Show full item record

Page view(s) 10

checked on Feb 7, 2023

Download(s) 5

checked on Feb 7, 2023

Google ScholarTM