The Crni Kal Quarry - An Example of Destroying Geotopes

Although we are slowly becoming aware of the necessity to preserve the geotopes, there are also problems arising from their protection. It is practically impossible to save some of geotopes in their entirety of which the quarry of Crni Kal near Koper is one example. Here are many interesting fossils including Palaeogene corals, foraminifera, molluscs and Pleistocene mammals in infilled karst caves

Changes in composition and pore space of sand rocks in the oil water contact zone (section YU[1] {3-4}, Klyuchevskaya area, Tomsk region)

The article provides an analysis of specific features in changes of rocks in the oil water contact zone. The object of study is the formation YU[1] {3-4} (J[3]o[1]) of Klyuchevskaya oil deposit (West Siberian oil-gas province, Tomsk region). The research data allow the authors to determine vertical zoning of the surface structure and identify the following zones: oil saturation (weak alteration), bitumen-content dissolution, non-bitumen-content dissolution, cementation, including rocks not affected by hydrocarbon deposit. The rocks under investigation are characterized by different changes in composition, pore space, as well as reservoir filtration and volumetric parameters. Detection of irregularity in distribution of void- pore space in oil-water contact zones is of great practical importance. It helps to avoid the errors in differential pressure drawdown and explain the origin of low-resistivity collectors

The Crni Kal Quarry - An Example of Destroying Geotopes

Although we are slowly becoming aware of the necessity to preserve the geotopes, there are also problems arising from their protection. It is practically impossible to save some of geotopes in their entirety of which the quarry of Crni Kal near Koper is one example. Here are many interesting fossils including Palaeogene corals, foraminifera, molluscs and Pleistocene mammals in infilled karst caves

Larger foraminiferal biostratigraphy of the Tethyan Paleocene and Eocene

Abundance, diversity, and high evolutionary rates make larger foraminifera useful biostratigraphic tools for datation of sediments deposited in shallow marine platforms. Twenty shallow benthic zones (SBZ) are defined in the time span ranging from the base of Paleocene up to the Eocene-Oligocene boundary. A SBZ zone is characterized upon the stratigraphic distribution of several taxa, belonging mainly to alveolinids, nummulitids and orthophragminids. The correlation of shallow benthic zones with the Paleocene-Eocene Time Scale by Berggren et al. [1995] is proposed on the basis of magnetostratigraphic data from the Pyrenean Basin and by biostratigraphic correlation with the biozonations of calcareous nannoplankton and planktonic foraminifera in the eastern and central part of Tethys

Tethyan Paleocene-Eocene Larger Foraminifera Biostratigraphy: Shallow Benthic Zones (SBZ)

(Fino al 2003, Acta Geologica Hispanica