Abstract The Aysén-Río Mayo Basin was a back-arc/marginal basin developed in southwestern South America (43°–47°S) between the Tithonian–Aptian. Its sedimentary fill corresponds to Coyhaique Group, which represents transgressive–regressive succession. Six lithofacies and five microfacies were defined for three outcrops exposed south of (45°40’S). have mixed calcareous–volcaniclastic composition...

Habitat classifications provide guidelines for mapping and comparing marine resources across geographic regions. Calcareous bio-concretions and their associated biota have not been exhaustively categorized. Furthermore, for management and conservation purposes, species and habitat mapping is critical. Recently, several developments have occurred in the field of predictive habitat modeling, and ...

Calcareous nannofossils are micrometric calcite platelets secreted by the photosynthetic algae named coccolithophores and incertae sedis. nannoplankton inhabit photic zone from coast to open-ocean have left an abundant fossil record since Triassic. Therefore, they constitute interesting material for geochemical studies although been overlooked in comparison foraminifera. We analyzed manganese d...

The new genus Gosavisiphon with the type-species Halimeda paucimedullaris SCHLAGINTWEIT & EBLI, 1998, tentatively referred to the Udoteaceae, is described from the Late Cretaceous (Middle/Late Cenomanian-Santonian) of the Branderfl eck Formation and the Lower Gosau Subgroup of the Northern Calcareous Alps (Austria, Germany). It is a plurimillimetric to pluricentimetric marine, hard-substrate dw...

This paper looks at the changes in urban air quality and the effect on building materials with particular regard to their deterioration arising from pollution due to vehicles. The paper aims to review basic information on the likely Ž effect of NO and ozone on calcareous building materials limestone, marble, dolomite, calcareous cemented x . sandstone by examining experimental and fieldwork rel...

In the late Middle to early Late Jurassic carbonate-clastic Sirogojno Melange in Zlatibor Mountain there is one roughly 35 m thick overturned block with an intact Triassic fore-reefal Dachstein Limestone succession studied for its biostratigraphic age, content and microfacies characteristics. The starts coarse-grained rudstones followed by meter-sized reefal blocks intercalated partly layered r...


 As a result of the study core material 540 thin sections from boreholes northern marginal part and paraxial Dnieper-Donetsk Depression (DDD), complex fossil red calcareous algae including 14 species 7 genera, as well 2 belonging to genera identified for first time Visean deposits DDD has been discovered. The studied carbonate represent Hlybokynskyi, Sukhynskyi, Stylskyi, Donetskyi lower ...