The present work focuses on the upper Cretaceous (Cenomanian-early Campanian) carbonate successions in selected wells from northwestern Iraq. These are represented by Gir Bir Turonian), Wajna (late Santonian) and Mushorah (early Formations. succession has affected early burial near-surface, unconformity-related deep diagenesis cementation, neomorphism, dolomitization, dedolomitization, silicifi...

Une nouvelle espèce d’Archiaciidae, A. ramitaensis nov. sp., a été découverte dans le Cénomanien supérieur de Syrie. Elle est décrite et comparée aux autres espèces d’Archiacia déjà connues. La distribution paléobiogéographique des Archiaciidae leurs affinités paléoécologiques sont discutées. A new species of Archiaciidae, has been discovered in the late Cenomanian deposits Syria. The is descri...

The early opening of the South Atlantic ocean along the eastern Romanche Fracture Zone, including an initial phase of transform faulting and pull-apart basin formation, followed by the generation of a seafloor spreading center, was investigated during Ocean Drilling Program Leg 159 to the Côte d’Ivoire-Ghana continental margin. Clay minerals in the <0.5-μm fraction of tectonically disturbed sed...

The paper presents original and published data of radioisotope dating volcanic rocks the Magellan Seamounts. These available geological materials allow us to distinguish five major complexes different ages in guyots Seamounts: 1 — Late Jurassic-Early Cretaceous (earliest Cretaceous); 2 Early (Apt-Albian); 3 (Late Cenomanian-Turonian- Campanian); 4 Campanian-Maastrichian); 5 Cenozoic. Each these...

between the lower and upper cretaceous there were some diastrophic movements, belonging to the austrain phase. these movements, which can be traced in many parts of north and central iran, caused extensive precenomanian erosion. even in southwest iran a wide spread discontinuity is reported at the base of the kazhdumi formation, which is possibly related to these movements. in the kopet - dagh ...

Stable isotopic measurements have been made on both planktonic foraminifera and coccolithic matrix of Middle Cretaceous (Late Albian–Cenomanian) age from two Pacific low latitude sites. The degree of alteration of the foraminifera has been assessed through the application of chemical analyses, cathodoluminescence and Scanning Electron Microscopy (SEM). The rotaliporid foraminifera display an in...

Abstract. Albian to Turonian carbonate deposits at three different locations of the Lower Saxony Cretaceous and thereby European mid-Cretaceous epeiric shelf sea were investigated for their fossil agglutinated foraminiferal fauna. In this study, 71 samples from two quarries drill cores treated with formic acid, which enabled study assemblages even in highly lithified limestones. total, 114 spec...