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(a) Inlet: Crete Island of Greece. (b) Location map of studied sections in the Heraklion Province. 1: Cape Chersonissos and 2: Piskopiana east of Heraklion city and west of Malia town, near Limin Chersonissos, Crete, Greece. Contour interval 60 m.
Source publication
Biostratigraphy and correlations of Upper Miocene and Zanclean marine deposits of Heraklion Neogene Basin, Crete Island, Greece, based on calcareous nannofossils.
Contexts in source publication
Context 1
... sections were litho-and biostratigraphically studied in detail. Both of them are situated between Heraklion and Aghios Nikolaos cities in the eastern part of Heraklion Province of central Crete. Cape Chersonissos section is located on the left hand (to the west), along the main street driving from Limin Chersonissos town to the homonymous Cape ( Fig. 1), shortly after Sarantaris village at ca. 0.7 km distance from it. Piskopiana section is located on the new national road crossing at a east-west direction the Crete Island (ca. 1.7 km SSW of Limin Chersonissos), on the road connecting Aghios Nikolaos, Malia and Chersonissos driving further west to Heraklion, between Koutouloufarion and ...
Context 2
... new national road crossing at a east-west direction the Crete Island (ca. 1.7 km SSW of Limin Chersonissos), on the road connecting Aghios Nikolaos, Malia and Chersonissos driving further west to Heraklion, between Koutouloufarion and Piskopiana villages, directly on the right side of the street and at the eastern entrance of the former village (Fig. 1). ...
Context 3
... Mediterranean (MSC). The present work shows that the deposits of Piskopiana section certainly characterize not the initial (basal) stage of Pliocene transgression, but the development of it into open marine conditions. Biostratigraphically, the Cape Chersonissos section, was considered before as Lower (Early) Tortonian in age (Zachariasse 1975 fig. 12 (optical microscope, normal light, OM). Scale bar equals 5.0 μm (figs. 1-11, 17, 18 and 28), and 2.0 μm (figs. 12-16 and 19-27). Small s is for sample ...
Citations
... Fragments of bioclastic packstone-wackestone caementa containing benthonic foraminifera, which lived on the ancient sea floor, likely come from older rocks, such as the "Calcare di Bari" formation (Stanislao 2011). At Chersonesos harbour, constructed in the first century BC or AD on the north coast of Crete, the porous, rather poorly consolidated concretes contain occasional yellow-grey pumiceous tuff fragments but most of the caementa are irregularly shaped chunks of fossiliferous wackestone ranging from about 5 to 20 cm in length, probably from local Miocene-Pliocene deposits of the Chersonesos stratigraphic succession (Frydas and Bellas 2009;Vola et al. 2011c;Stanislao 2011). Coal fragments in the mortars, 0.5 to 2.0 mm in size, seem to come from local lignite beds in lacustrine and terrestrial deposits around the harbour site (Vidakis and Meulenkamp 1996). ...
... The rocks that crop out on the Chersonesos peninsula on the northern coast of Crete are middle to late Miocene marly limestone and sandy-and silty-marls, with abundant calcareous nanofossils, and occasional gypsum beds (Frydas and Bellas 2009). There is a general absence of information about calcination of limestone in ancient Crete, but the earthy character of the Chersonesos mortar (Fig. 7.8b) suggests a poorly calcined lime. ...
... Coarse rubble aggregate (caementa): Although there are occasional caementa of yellowish-grey pumiceous tuff, the predominant coarse aggregate seems to be hard Miocene-Pliocene carbonate rocks of the Chersonesos stratigraphic succession (Frydas and Bellas 2009). The porous, fossiliferous wackestone caementa are composed of both calcite and dolomite, and contain abundant halite, and lesser amounts of brucite and philipsite. ...
The Middle–Late Miocene subsurface successions from the Southeastern Mediterranean coast were studied based on the calcareous nannoplankton. The study was established on three boreholes selected from the offshore Nile Delta region, which are Port Fouad M-5, Baltim-1, and NDOB-1. The boreholes were chosen from different petroleum concessions within the North Delta basin. The standard nannoplankton biozonation of Mediterranean areas was used in this study. The studied rock successions cover the Sidi Salim and Qawasim formations, which are widely recognized targets for gas exploration. The study of the calcareous nannoplankton in the studied successions revealed eight biozones, and they are from base to top: Sphenolithus heteromorphus (NN5), Discoaster exilis (NN6), Discoaster kugleri (NN7), Catinaster coalitus (NN8), Discoaster hamatus (NN9), Discoaster calcaris (NN10), Discoaster quinqueramus (NN11), and Amaurolitus tricorniculatus (NN12). The Langhian/Serravalian, the Serravalian/Tortonian, and the Tortonian/Messinian boundaries were defined and discussed. The biochronological dates of the identified nannoplankton biozones were used to calculate the sedimentation rates of the studied rock successions. The calculations revealed two cycles of successive changes of sedimentation rates, which are attributed to regressions phases in Sidi Salim and Qawasim formations.
