Open AccessPalaeomagnetism of the basalts of Wadi Abu Tereifiya, Mandisha and dioritic dykes of Wadi Abu Shihat, Egypt
Author(s) -
Hussain A. Gouda,
Schult A.,
Soffel H.
Publication year - 1979
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1979.tb04767.x
Subject(s) - wadi , geology , basalt , paleomagnetism , natural remanent magnetization , mesozoic , geochemistry , demagnetizing field , magnetization , geomorphology , geophysics , geography , magnetic field , physics , archaeology , quantum mechanics , structural basin
Summary. One hundred and fifty oriented samples were collected from 12 sites from the Tertiary basalts of Wadi Abu Tereifiya (30.0°N, 32.1° E). After alternating field demagnetization the mean direction of the natural remanent magnetization is, D = 187.9°, I = ‐20.8° with α 95 = 5.8°. This yields a palaeopole at 69.4°N, 188.3° E. Also, 30 oriented samples were collected from two sites from Mandisha in Bahariya Oasis (28.4°N, 28.9° E). After cleaning, the mean direction of the NRM is D = 191.0°, I = 5.2° with α 95 = 9.9°. This yields a palaeopole position at 58.2°N, 186.7° E. Besides, the NRM of 70 oriented samples collected from seven dioritic dykes from Wadi Abu Shihat (26.3°N, 33.2° E) was found to have a mean direction, D = 142.0°, I = ‐0.3°, which leads to a palaeopole position at, 44.9°N, 273.0° E. This agrees with other Mesozoic pole positions from Africa.