Middle Miocene (Upper Badenian/Sarmatian) Palaeoecology and Evolution of the Environments in the Area of Medvednica Mt. (North Croatia)
<div>In the area of Medvednica Mt., the Upper Badenian and Sarmatian</div><div>deposits are divided into four facies associations: (A) deposits of a</div><div>small carbonate platform represented by breccia, conglomerates, biocalcirudites,</div><div>biocalca...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Croatian Geological Survey
2006-06-01
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| Series: | Geologia Croatica |
| Subjects: | |
| Online Access: | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/186 |
| Summary: | <div>In the area of Medvednica Mt., the Upper Badenian and Sarmatian</div><div>deposits are divided into four facies associations: (A) deposits of a</div><div>small carbonate platform represented by breccia, conglomerates, biocalcirudites,</div><div>biocalcarenites and biocalclutites; (B) open-sea deposits</div><div>composed of marls with intercalations of clay; (C) nearshore deposits</div><div>of reduced salinity composed of conglomerates, sandstones, biocalcarenites, biocalcirudites and biocalclutites, and (D) lagoonal deposits represented by spongitic calclutites with clay, marl and sand intercalations.</div><div>Deposits of these facies associations contain numerous and very</div><div>diverse fossil species with very different palaeoecological characteristics,</div><div>from shallow- and deeper-water normal marine to shallow- and</div><div>deeper-water environment of reduced salinity, even of fresh-water.</div><div>The transition from Late Badenian to Sarmatian deposition was</div><div>characterized by three different unconformities and one conformity.</div><div>Unconformities are located between different lithologies reflecting</div><div>an amount of uplifting and erosion at the end of the Badenian. The</div><div>occurrence of an angular unconformity suggests the influence of local</div><div>tectonics.</div><div>The Middle Miocene deposition shows different local variations</div><div>but generally fits with the evolution of Central Paratethys and the</div><div>Pannonian Basin System.</div> |
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| ISSN: | 1330-030X 1333-4875 |