Palaeomagnetism of Upper Cretaceous volcanic rocks from Cabo de Sto. Agostinho, Brazil

Details Palaeomagnetism of Upper Cretaceous volcanic rocks from Cabo de Sto. Agostinho, Brazil Palaeomagnetism of Upper Cretaceous volcanic rocks from Cabo de Sto. Agostinho, Brazil

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980e%26psl..50..311s&link_type=abstract

Earth and Planetary Science Letters, Volume 50, Issue 1, p. 311-315.

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Scientific paper

One hundred samples from nine sites in Upper Cretaceous volcanics (K/Ar age 85-99 m.y.) of the magmatic province of Cabo de Santo Agostinho, Pernambuco (8.4°S, 35.0°W) yield a mean direction of magnetization D = 0.4°, I = -20.6° with α95 = 4.8°, k = 114 after AF cleaning. All sites have normal polarity with a mean pole, named SAK10, at 87.6°N, 135°E with A95 = 4.5° which is close to other Upper Cretaceous poles for South America. These poles are compared with Upper Cretaceous poles of Africa for various reconstructions of the two continents.

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