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Full-Text Articles in Physical Sciences and Mathematics
The Olenekian Carbonates Of The Bucovinian Nappe (The Central Sector Of The Haghimas Syncline, Eastern Carpathians). Lithology And Microfacies, Daniela Alexandra Popescu, Liviu Gheorghe Popescu
The Olenekian Carbonates Of The Bucovinian Nappe (The Central Sector Of The Haghimas Syncline, Eastern Carpathians). Lithology And Microfacies, Daniela Alexandra Popescu, Liviu Gheorghe Popescu
Studia UBB Geologia
Early Triassic carbonate outcrops were studied in the central sector of the Hăghimaş Syncline with regard to stratigraphy, microfacies and facies interpretation.This is the first microfacies study of these deposits. Early Triassic carbonates in the Hăghimaş Syncline are represented by two stratified successions: limestones and dolomites. The limestones overlie very rarely the detritic basal deposits (Induan) which marks the beginning of the alpine transgression. The stratified dolomites underlie frequently the Early Anisian massive dolomites. The contact between the stratified limestones and stratified dolomites is only exposed on Calu brook outcrop (the western flank of the Hăghimaş Syncline). The age of …
Facies Analysis Of The Late Cretaceous Deposits From Corni Quarry (North-Eastern Border Of Gilău Mountains), Emanoil SăSăRan, Liana SăSăRan
Facies Analysis Of The Late Cretaceous Deposits From Corni Quarry (North-Eastern Border Of Gilău Mountains), Emanoil SăSăRan, Liana SăSăRan
Studia UBB Geologia
The Late Cretaceous deposits outcropping along the northeastern border of Gilău Mountains form a NW-SE-oriented crest. The crest is delimited westwards by the crystalline formations of Baia de Arieş Nappe. Within these deposits, two distinctive sedimentary complexes could be separated: a) The Gosau-type facies formation, that can be correlated to the “Lower Gosau Subgroup” (Wagreich & Faupl, 1994), represented by alluvial/fluvial fans and shallow marine deposits; b) The flysch-type formation, that is similar with the “Upper Gosau Subgroup” (Wagreich & Faupl, 1994) and includes deep sea deposits (hemipelagites/turbidites).The syndepositional and postdepositional tectonics controlled the sedimentation and facies distribution; the shallow …
Microfacies And Microfossils In Upper Jurassic Limestones From Cheile Turenilor, Emanoil SăSăRan, Ioan I. Bucur, Ioana Prica
Microfacies And Microfossils In Upper Jurassic Limestones From Cheile Turenilor, Emanoil SăSăRan, Ioan I. Bucur, Ioana Prica
Studia UBB Geologia
In the Cheile Turenilor (Tureni Gorges) area, a carbonate succession about 150 m thick developed on top of island arc magmatites. It mainly consist of gravity - induced deposits (debris flows, mass flows and grain flows). Coral, sponges and stromatoporoid bioconstructions are associated. Microbolites play an important role, as binders of the intraclastic rudstones/ grainstones facies, as well as of the incorporated corals, sponges, stromatoporoids, bryozoans, molluscs.
New Data Concerning The Age Of Mesozoic Limestone From Scarisoara (Bihor Mountains), Ioan I. Bucur, Bogdan P. Onac
New Data Concerning The Age Of Mesozoic Limestone From Scarisoara (Bihor Mountains), Ioan I. Bucur, Bogdan P. Onac
Studia UBB Geologia
Microfacies and micropalaeontologic studies on some limestone samples collected within the Scărişoara Glacier Cave are presented. The investigation pointed out that the age of the limestone around Scărişoara Cave is of Upper Jurassic (Kimmeridgian) age and not Triassic as it was considered in most of the studies.
Sedimentary Succesion Of The Lower Cretaceous Deposits From The North-Western Part Of Pădurea Craiului (Apuseni Mountains, Romania), Daniel F. Lazar, Ioan I. Bucur, Ioan Cociuba, Emanoil Sasaran
Sedimentary Succesion Of The Lower Cretaceous Deposits From The North-Western Part Of Pădurea Craiului (Apuseni Mountains, Romania), Daniel F. Lazar, Ioan I. Bucur, Ioan Cociuba, Emanoil Sasaran
Studia UBB Geologia
Within the general succession of the Lower Cretaceous deposits from the Vârciorog-Dobreşti area (Pădurea Craiului Mountains), carbonate and terrigenous deposits were identified. The limestones were assigned to two distinctive lithostratigraphic units: the Valea Măgurii and Vârciorog formations. Based on the orbitolinids Palorbitolina lenticularis and Mesorbitolina texana their ages are assigned to the early Aptian, and respectively late Aptian–Albian. The terrigenous facies mainly include fine grained deposits (clays, siltites, marls) and, to a lesser extent, coarser ones (glauconitic sandstones and conglomerates), and they are attributed to the Ecleja and Vârciorog formations. The marls of the Ecleja Formation have been observed in …