| Title | Paleogenski karbonatni facijesi nižega dijela naslaga dinaridskoga predgorskoga bazena sjeverne Dalmacije |
| Author | Jelena Španiček |
| Mentor(s) | Vlasta Ćosović
Ervin Mrinjek
|
| Abstract | Na prostoru sjeverne Dalmacije pet je geoloških stupova ranopaleogenskih karbonatnih naslaga (Čikola I i II, Novigrad, Ostrovica i Grabova Glava) bilo predmetom detaljnih sedimentoloških i mikropaleontoloških istraživanja, te su biostratigrafskim pristupom u kombinaciji s mikrofacijesnom analizom rekonstruirani karbonatni taložni okoliši tijekom taloženja. Taloženje se odvijalo u okolišima unutarnjih, srednjih i vanjskih dijelova rampi, a organizmi koji su obilježili te okoliše bile su velike bentičke foraminifere. Tijekom paleogena kolizijski procesi između Jadranske mikroploče i Euroazijske kontinentalne ploče uzrokovali su formiranje predgorskog bazena ispred uzdižućeg dinaridskog orogena, te je ranopaleogenska transgresija započela u različitim bazenima, odnosno u različitim dijelovima Vanjskih Dinarida, u različito vrijeme taloženjem naslaga bočatih laguna, koje su u literaturi poznate pod imenom Kozinske naslage. Istraživane naslage nalaze su u dijelu bazena poznatom kao sjevernodalmatinski bazen. Tijekom postojanja sjevernodalmatinskog dijela predgorskog bazena optimalni uvjeti za taloženje karbonatnih naslaga postignuti su u dva navrata, u ranom eocenu, kada su taloženi Foraminiferski vapnenci na širokom području forebulge sustava, te u srednjem eocenu kada su na padinama wedge-top bazena taloženi Gornji Numulitni vapnenci. Tijekom različitih vremenskih intervala, od ipra do bartona, na prostorima predgorskog bazena, pružanja SZ–JI, u okolišima nastalim na rampama, uz kontrolu sinsedimentacijske tektonike, taložen je nekoliko stotina metara debeo slijed naslaga u okolišima koje opisujemo kao Dinaridski sustav karbonatnih rampa. |
| Keywords | Palaeogene North Dalmatian Foreland basin microfacies Larger Benthic Foraminifera palaeoenvironments Dinaridic Carbonate Ramps System. |
| Parallel title (English) | Palaeogene carbonate facies of lower part of the Dinaridic foreland basin succession in the Northern Dalmatia |
| Committee Members | Igor Vlahović (committee chairperson)
Blanka Cvetko Tešović (committee member)
Marijan Kovačić (committee member)
|
| Granter | University of Zagreb
Faculty of Science |
| Lower level organizational units | Department of Geology
Division of Geology and Paleontology |
| Place | Zagreb |
| State | Croatia |
| Scientific field, discipline, subdiscipline | NATURAL SCIENCES
Geology
Geology and Paleontology
|
| UDK | 55
NATURAL SCIENCES
Geology. Meteorology. Hydrology |
| Study programme type | university |
| Study level | postgraduate |
| Study programme | Doctoral study of Geology |
| Academic title abbreviation | dr. sc. |
| Genre | doctoral thesis |
| Language | Croatian |
| Defense date | 2017-10-06 |
| Parallel abstract (English) | In the Northern Dalmatia area five outcrops of the lower Palaeogene carbonate deposits (Čikola I i II, Novigrad, Ostrovica i Grabova Glava) have been the subject of detailed sedimentological, micropaleontological and microfacies research. Furthermore, the biostratigraphic approach in combination with conventional facies analysis was used to reconstruct a range of carbonate depositional systems. Carbonate sedimentation took place in the inner, middle to outer ramp environments, where the dominant organisms were Large Benthic Foraminifera. The collision processes between the Adriatic continental microplate and Euroasia continental plate caused the formation of the Dinaridic foreland basin, developed during the Palaeogene in front of the uplifting mountain belt. Early Palaeogene transgression occurred in different times in different basins, as parts of the Outer Dinarides, firstly by the brackish lagoonal deposits known in literature as Kozina beds. Studied deposits are part of the Northern Dalmatian foreland basin and during its existence the conditions for the carbonate sedimentation were attained on two occasions. During the Early Eocene Foraminifera limestones were deposited on the vast forebulge area, and in the Middle Eocene Upper Nummulitic limestones deposited on the limbs of the wedge-top basins. During the different time intervals, spanning from the Ypresian to the Bartonian, in the NW–SE oriented foreland basin, carbonate ramps developed, controlled by synsedimentary tectonics, creating a couple hundreds of meters of deposits within environments described as Dinaridic Carbonate Ramps System. |
| Parallel keywords (Croatian) | paleogen Sjevernodalmatinski predgorski bazen mikrofacijesi velike bentičke foraminifere paleookoliši Dinaridski sustav karbonatnih rampa |
| Extent | XIII+158 str. ; 30 cm |
| Version | accepted version |
| Resource type | text |
| Access condition | Open access |
| Terms of use |  |
| Note | accepted version |
| URN:NBN | https://urn.nsk.hr/urn:nbn:hr:217:809755 |
| Repository | https://repozitorij.pmf.unizg.hr |
