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The Geological Institute of Bonn University since 1975 investigates in connection with DSDP/IPOD the Cretaceous of the Atlantic coastal basin in south-western Morocco.80 main stratigraphic sections and numerous auxiliary ones were taken along several traverses, running along distances of 150 to 200 km in west-east direction.The recognized epicontinental facies-pattern along the traverse of the southern High Atlas mountain range depicts clearly, that we cut here the critical region of intertonguing marine, fine-elastic-carbonaceous sediments and continental detritic deposits.The littoral zone successively progrades with three major transgressions (Neocomian, Upper Aptian, Turonian) towards the African Continent. Sedimentation processes, stratigraphy, paleomagnetics, geochemistry, sedimentology and paleogeography are investigated, taking selected horizons on one hand and complete stratigraphic columns on the other.A new sedimentation model reflecting transgression and regression events in the Cretaceous "Atlas Gulf" show some probabilities of eustatic sea-level changes.There are similarities between the Atlas Gulf and other coastal basins on both sides of the Atlantic Ocean. There are certain relations between the sedimentary record of the pro-and regrading littoral zone on the continent and in the nearby deep sea deposits. There is an exciting coincidence between the stratigraphie succession of the

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Data on biostratigraphy, biochronology, magnetostratigraphy, and K-Ar dating of basalts from the lower Eocene and upper Paleocene sequences drilled during Leg 81 are summarized in this chapter. The K-Ar results from Site 555 basalts indicate that the age of marine magnetic Anomaly 24 and adjacent anomalies represents a key problem in the Cenozoic time scale. Three short events of normal polarity in the reversed interval between Anomalies 24B and 25 are interpreted either to represent true physical properties that are detected for the first time in the Leg 81 sequences or to represent overprints of the modern magnetic field direction.In post-Anomaly 24 times, the sequences are condensed (except part of Site 552) or characterized by hiatuses. Rapid sediment accumulation rates (20-70 cm/1000 yr.) characterize the pre-Anomaly 24B sequences of Hole 553A and Site 555.

Four pottery kilns from Bruhl-Pingsdorf (Germany) were dated by comparing their characteristic remanent magnetization with a curve of the palaeo-secular variation of the geomagnetic field. Archaeomagnetic results suggest last heating events between AD 775 and 1020. The archaeological evidence generally supports the relative temporal succession and the duration of use, but indicates that the kilns are about 150 years younger on average. Hence, a systematic offset between these independently developed chronologies must be considered. Rock magnetic parameters display radial variations through the kiln walls. These variations are controlled by the maximum temperature the rock was exposed to. These parameters were used to identify specimen which acquired a thermoremanent magnetization.