On the extension and lithological-facial composition of the Upper Cretaceous phosphatic horizon in the Ionian Zone

Pages: 
pp. 59-68
lnstituti i Studimere dhe Projektiveme të Gjeologjisë, Tirana
Abstract: 

An Upper Cretaceous carbonaceous-phosphatic-chert horizon is traced throughout the Ionian Zone on the territories of Albania and Greece. It crops out predominantly within anticlinal belts. Two phosphorogenic belts can be distinguished. The formation of the horizon has apparently taken place in an opensea basin. Separation of phosphorus is supposed to have occurred as a result of precipitation during the sedimentation and in a diagenetic way, by phosphoritization of microfauna and carbonates.

VOLUME 21 (1)/February 1991

Geological Institute, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

Institute of Regional Geology for Latin America (IGREPAL), National University of San Juan (UNSJ), Argentina
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Institute of Regional Geology for Latin America (IGREPAL), National University of San Juan (UNSJ), Argentina
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Institute of Regional Geology for Latin America (IGREPAL), National University of San Juan (UNSJ), Argentina
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Institute of Regional Geology for Latin America (IGREPAL), National University of San Juan (UNSJ), Argentina

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia

Université Claude-Bernard- Lyon 1, Centre des Sciences de Ia Terre et Unité associée au C.N.R.S. no 11, 27-43 Boulevard du 11 Novembre, 69622 Villeurbanne Cedex (France)
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Ecole supérieure des Mines et de Géologie, 1156 Sofia

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria