MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA)
Fossiliferous Middle Miocene deposits from the surroundings of Marija Bistrica (north-east of Zagreb) transgressively overly older pre-Cenozoic bedrocks. Fossils from shallow marine environments are in most cases preserved as bioclasts, while deep marine calcareous oozes characterize the pelagic mar...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mining, Geology and Petroleum Engineering
2018-01-01
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| Series: | Rudarsko-geološko-naftni Zbornik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/302351 |
| _version_ | 1797207613628219392 |
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| author | Jasenka Sremac Kristina Tripalo Marko Repac Marija Bošnjak Davor Vrsaljko Tihomir Marjanac Alan Moro Borna Lužar-Oberiter Karmen Fio Firi Šimun Aščić |
| author_facet | Jasenka Sremac Kristina Tripalo Marko Repac Marija Bošnjak Davor Vrsaljko Tihomir Marjanac Alan Moro Borna Lužar-Oberiter Karmen Fio Firi Šimun Aščić |
| author_sort | Jasenka Sremac |
| collection | DOAJ |
| description | Fossiliferous Middle Miocene deposits from the surroundings of Marija Bistrica (north-east of Zagreb) transgressively overly older pre-Cenozoic bedrocks. Fossils from shallow marine environments are in most cases preserved as bioclasts, while deep marine calcareous oozes characterize the pelagic marls. The age of the transgressive sequence is estimated on the basis of planktic biota from marls (foraminifera, nannoplankton and pteropods) as the Badenian NN5 Nannozone. The following palaeoenvironments can be distinguished or presumed on the basis of biota and sedimentary features: (1) beach characterized by polymictic conglomerates with rhodolith-rich carbonate matrix; (2) oyster banks, recognized from secondarily found oyster clusters; (3) lagoons marked with compact bioclastic deposits and rhodolith-halimeda assemblage; (4) patch-reefs recognized from the surrounding bioclastic deposits; (5) shallow subtidal mäerl beds preserved as loose bioclastic deposits and (6) distal slope argillaceous marls with pelagic biota. Palaeoenvironmental analyses indicate rapid drowning, most probably corresponding to the transgression during the Middle Badenian TB 2.4 3rd order transgressive-regressive sequence. |
| first_indexed | 2024-04-24T09:25:42Z |
| format | Article |
| id | doaj.art-6cfe76d12e2c47c7868b701a0d34589d |
| institution | Directory Open Access Journal |
| issn | 0353-4529 1849-0409 |
| language | English |
| last_indexed | 2024-04-24T09:25:42Z |
| publishDate | 2018-01-01 |
| publisher | Faculty of Mining, Geology and Petroleum Engineering |
| record_format | Article |
| series | Rudarsko-geološko-naftni Zbornik |
| spelling | doaj.art-6cfe76d12e2c47c7868b701a0d34589d2024-04-15T15:00:19ZengFaculty of Mining, Geology and Petroleum EngineeringRudarsko-geološko-naftni Zbornik0353-45291849-04092018-01-01334234310.17794/rgn.2018.4.3MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA)Jasenka Sremac0Kristina Tripalo1Marko Repac2Marija Bošnjak3Davor Vrsaljko4Tihomir Marjanac5Alan Moro6Borna Lužar-Oberiter7Karmen Fio Firi8Šimun Aščić9Department of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebFaculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, 10000 Zagreb, studentCroatian Natural History Museum, Demetrova 1, 10000 Zagreb, curatorsCroatian Natural History Museum, Demetrova 1, 10000 Zagreb, curatorsDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebDepartment of Geology, Faculty of Science, University of Zagreb, Horvatovac 102 a, 10000 ZagrebFossiliferous Middle Miocene deposits from the surroundings of Marija Bistrica (north-east of Zagreb) transgressively overly older pre-Cenozoic bedrocks. Fossils from shallow marine environments are in most cases preserved as bioclasts, while deep marine calcareous oozes characterize the pelagic marls. The age of the transgressive sequence is estimated on the basis of planktic biota from marls (foraminifera, nannoplankton and pteropods) as the Badenian NN5 Nannozone. The following palaeoenvironments can be distinguished or presumed on the basis of biota and sedimentary features: (1) beach characterized by polymictic conglomerates with rhodolith-rich carbonate matrix; (2) oyster banks, recognized from secondarily found oyster clusters; (3) lagoons marked with compact bioclastic deposits and rhodolith-halimeda assemblage; (4) patch-reefs recognized from the surrounding bioclastic deposits; (5) shallow subtidal mäerl beds preserved as loose bioclastic deposits and (6) distal slope argillaceous marls with pelagic biota. Palaeoenvironmental analyses indicate rapid drowning, most probably corresponding to the transgression during the Middle Badenian TB 2.4 3rd order transgressive-regressive sequence.https://hrcak.srce.hr/file/302351langhiantransgressionpalaeoenvironmentbiostratigraphyMedvednica Mt |
| spellingShingle | Jasenka Sremac Kristina Tripalo Marko Repac Marija Bošnjak Davor Vrsaljko Tihomir Marjanac Alan Moro Borna Lužar-Oberiter Karmen Fio Firi Šimun Aščić MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA) Rudarsko-geološko-naftni Zbornik langhian transgression palaeoenvironment biostratigraphy Medvednica Mt |
| title | MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA) |
| title_full | MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA) |
| title_fullStr | MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA) |
| title_full_unstemmed | MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA) |
| title_short | MIDDLE MIOCENE DROWNED RAMP IN THE VICINITY OF MARIJA BISTRICA (NORTHERN CROATIA) |
| title_sort | middle miocene drowned ramp in the vicinity of marija bistrica northern croatia |
| topic | langhian transgression palaeoenvironment biostratigraphy Medvednica Mt |
| url | https://hrcak.srce.hr/file/302351 |
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