Abstract The Hagen-Balve Reef Complex of the northern Rhenish Massif, Germany, is one best examples for globally widespread Givetian to Frasnian reefs. At its eastern end, in Hönne Valley, it reaches up 1000 metres thickness. In general, there limited knowledge concerning faunas and palaeoecology initial reef phases. A unique section at Binolen exposes sharp boundary between underlying, silicic...

frasnian - famennian boundary in the kal-e-sardar section (east of tabas, central iran) is investigated on the basis of conodonts. distribution of thirty-three species and subspecies in the stratigraphic column enables us to recognize a barren interval and five biozones; upper rhenana, upper part of upper rhenana - linguiformis, lower to middle triangularis, upper triangularis, lower crepida. b...

The living and dead assemblages in the Santoña estuary were studied seasonally order to determine distribution abundance of benthic foraminifera this area. Samples collected from Winter 1983 summer 1985 document seasonal variation faunas various ecological factors intertidal zone. Salinity is thought be main control two different biofacies characterising upper lower areas have been defin...

Abstract The exposed Middle Eocene (Bartonian) Qurn Formation along Qattamiya—Ain Sokhna district is measured, sampled and microscopically investigated. Besides, the vertical distribution of chemical oxides strontium (Sr) has been determined to identify their petrographic, geochemical characteristics interpret depositional environments. facies analysis (lithofacies, microfacies, biofacies) stud...