George Pleș

George Pleș
Babeş-Bolyai University | UBB · Department of Geology

PhD

About

37
Publications
10,934
Reads
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242
Citations
Citations since 2016
26 Research Items
198 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Introduction
My main research activity is related with the investigation of Mesozoic reef and peri-reef paleoenvironments of the Western Tethys carbonate platforms; paleontology/micropaleontology of shallow-water platform carbonates (corals, calcareous sponges, encrusting microorganisms, benthic foraminifera, microbial crusts); Triassic, Upper Jurassic and Lower Cretaceous biostratigraphy; Neo-Tethys paleogeography and tectonostratigraphic setting.
Additional affiliations
February 2015 - present
Babeş-Bolyai University
Position
  • Lecturer
Education
October 2010 - January 2014
Babeş-Bolyai University
Field of study
  • Microfacies analyses and biostratigraphy of Mesozoic Neotethyan carbonate platforms
October 2008 - July 2010
Babeş-Bolyai University
Field of study
  • Geology of Sedimentary Basins
October 2005 - July 2008
Babeş-Bolyai University
Field of study
  • Geology

Publications

Publications (37)
Article
Full-text available
Late Jurassic–Early Cretaceous S ˇ tramberk-type reef limestones are known from some parts of the Southern Carpathians in Romania. The Upper Jurassic deposits mainly consist of massif reef limestones including a variety of microbialites associated with micro-encrusters. They played an important role in the formation and evolution of the reef framew...
Article
Full-text available
The Lower Badenian deposits from the western border of the Transylvanian Basin developed on a littoral carbonate platform, and consist of red algae-dominated sediments. Green algae (halimedacean Bryopsydales and Dasycladales) are reported from the upper part of the succession of Gârbova de Sus Formation, at Podeni. Halimeda segments occur together...
Article
We carried out a comprehensive facies/microfacies, micropalaeontological and biostratigraphical analysis of several carbonate olistoliths incorporated within a widely developed Albian conglomeratic sequence from the Eastern Carpathians of Romania. The majority of the sampled olistoliths contain a rich assemblage of benthic foraminifera and calcareo...
Article
The Postăvaru Massif is located in the easternmost part of the Getic Carbonate Platform from the Southern Carpathians. The described sections are unevenly distributed in all four tectonic compartments of the Postăvaru Massif (Brașov, Cristian, Râșnov and Postăvaru). Eighteen sections were studied to highlight the biostratigraphic and facies evoluti...
Article
Extensive high-resolution palaeontological, stratigraphic and sedimentological data offer a new and comprehensive view of the genesis and evolution of the most extended Eocene nummulitic accumulation in the northern Neotethyan realm. The preserved Bartonian (SBZ 17) Nummulites assemblages consist of large, granulate Nunmmulites perforatus and/or sm...
Article
Full-text available
Septfontainella (type-species S. carpatobalcanica n. sp.), a new genus of larger benthic foraminifera (family Hauraniidae, subfamily Amijiellinae) is described from the upper Berriasian of the Carpatho-Balkanides, eastern Serbia and Romania (Southern Capathians), both part of the Getic domain. It is characterized by large elongate dimorphic tests w...
Article
A rich poriferan assemblage was identified within the easternmost part of the Getic Carbonate Platform of Romania (Grădiștei Gorges). The excellent preservation state of most poriferans here led to the discovery of a new species (Neuropora gigantea Pleș & Schlagintweit, n. sp.) and to the identification of previously unknown diagnostic features in...
Article
The study of the carbonate clasts and matrix of a problematic sedimentary formation (the Gugu Breccia) from the Pădurea Craiului Mountains reveals new information concerning its depositional environment and stratigraphic position. The identified microfacies and micropaleontological assemblages demonstrate that all the sampled limestone clasts from...
Article
Full-text available
The dataset presents quantitative information on the taxa distribution of calcareous nannoplankton and smaller benthic foraminifera retrieved from the nummulitic accumulation in the Transylvanian Basin (Romania). Until now, only the larger benthic foraminifera and bryozoans were systematically studied, data on calcareous nannoplankton and smaller b...
Article
Nummulitic accumulations are an important component of the Eocene sedimentary record in the Neotethyan realm. Their age, paleoenvironmental significance and depositional model are almost exclusively based on the interpretation of the larger benthic foraminiferal assemblages. We show here, however, that the high-resolution study of the other, often...
Article
We carried out combined micropaleontological, microfacies and multivariate statistical analyses of benthic foraminiferal assemblages on a previously undocumented lowermost Cretaceous carbonate succession from the western part of the Getic Carbonate Platform (Pui-Bănița zone, Southern Carpathians). The microfacies analysis and interpretations sugges...
Article
Full-text available
In the late Middle to early Late Jurassic carbonate-clastic Sirogojno M?lange in the Zlatibor Mountain there is one roughly 35 m thick overturned block with an intact Late Triassic fore-reefal Dachstein Limestone succession that was studied here for its biostratigraphic age, faunal content and microfacies characteristics. The succession starts with...
Research
Full-text available
The Ceahlau Massif (Eastern Carpathians) is composed of a large succession of Cretaceous polymictic conglomerates interlayered at several stratigraphic levels with sandstones and calcareous olistoliths and blocks known as "Klippe". Ninety-seven samples were collected from seven olistoliths spread across the eastern side of the Ceahlau Massif (Ocola...
Article
The lowermost Cretaceous carbonate deposits of the Carpatho–Balkanides (Eastern Serbia), which crop out in the Kučaj zone, were studied in three sections: Kamenica, Prekonozi and Jerma River Canyon. The identified micropalaeontological assemblages generally consist of calcareous green algae (mainly dasycladaleans), benthic foraminifera (mainly orbi...
Article
Full-text available
Microfacies analyses of twenty-five samples collected from three outcrops located in the northwestern part of the Transylvanian Basin offered new insights into the structural architecture and diagenetic features of the nummultic accumulations in this region. The data from thin-section observations revealed the fact that diagenetic processes (mainly...
Conference Paper
Full-text available
The lowermost Cretaceous from the western part of Carpatho-Balkanides (Eastern Serbia): the Kamenica section
Article
Detailed sedimentological and micropaleontological investigations have been carried out on nine sections from the central-western part of the Southern Carpathians (Cioclovina-Băniţa sector) that provide new insights into the Upper Jurassic–Lower Cretaceous biostratigraphy and sedimentary successions of the Getic Carbonate Platform. Based on the mic...
Article
Piatra Craiului Massif is situated in the easternmost part of the Southern Carpathians, Romania. The Kimmeridgian–lowermost Valanginian carbonate succession from this area is part of the large Getic Carbonate Platform system, and forms a 25 km long, NE-SW oriented calcareous ridge with a maximum thickness of 1200 m. Previous studies of Upper Jurass...
Article
Full-text available
The middle Miocene carbonates from the NW part of the Transylvanian Basin are represented mainly by rhodalgal facies. This paper provides an accurate taxonomic account of the red algal assemblages, facies analysis, and paleoenvironmental interpretation of the Badenian deposits outcropping in Vălenii Șomcutei area. A total of 13 red algal species be...
Article
Full-text available
Boueina hochstetteri TOULA (type-species of the genus) was published by TOULA (1884) in the 10th report of his travel through the Balkan region. He considered this species to be a problematic organism with uncertain systematic affiliation. Later, STEINMANN (1901) assigned this fossil to the calcareous algae. Our own field work performed in the autu...
Article
Analysis of eight outcrops from Rarău Massif (Eastern Carpathians, Romania) revealed a rich assemblage of encrusting organisms mostly of problematic biological affiliation within platform-margin facies – Crescentiella morronensis, Radiomura cautica, Koskinobullina socialis, Pseudorothpletzella schmidi, Lithocodium aggregatum and bacinellid structur...
Article
Full-text available
The carbonate succession of the Piatra Craiului Massif, i.e., the eastern part of the Getic carbonate platform (Southern Carpathians, Romania), comprises reefal and peritidal limestones that contain a diverse microfossil assemblage composed mainly of calcareous green algae and benthic foraminifera. The biostratigraphically most significant benthic...
Article
Shallow-water carbonates from the Lower Cretaceous (upper Aptian) of the Subpiatră Quarry (Apuseni Mountains, west Romania) contain a new species of lituolid foraminifera of the genus Bulbobaculites. The new foraminifer is characterized by a streptospiral initial part, followed by a rectilinear adult stage and a test-wall composed of agglutinated m...
Article
Full-text available
The Buila-Vânturariþa Massif consists of massive Upper Jurassic reef limestones (Kimmeridgian–Tithonian) and Lower Cretaceous (Berriasian–Valanginian, and Barremian–?Lower Aptian) deposits. Besides corals and stromatoporoids, a wide range of micro-encrusters and microbialites has contributed to their development. In this study, the authors describe...
Article
Full-text available
A rich association of benthic foraminifera was discovered in the Upper Jurassic carbonate sequence belonging to the Ardeu Unit of the Metaliferi Mountains. Large agglutinated species (mesoendothyrids, valvulinids and cyclamminids) are the most frequent, some of them being recorded for the first time in Romania. Many species are biostratigraphically...
Article
Full-text available
A rich association of benthic foraminifera was discovered in the Upper Jurassic carbonate sequence belonging to the Ardeu Unit of the Metaliferi Mountains. Large agglutinated species (mesoendothyrids, valvulinids and cyclamminids) are the most frequent, some of them being recorded for the first time in Romania. Many species are biostratigraphically...
Conference Paper
Full-text available
The Kimmeridgian-Berriasian-?Valanginian limestones from Piatra Craiului Massif are part of the sedimentary cover of the Getic Nappe from Southern Carpathians. Within the Piatra Craiului carbonate succession, three major types of depositional systems have been separated which can be followed from base to the top: (1) slope and shelf margin system;...
Article
Full-text available
Late Jurassic–Early Cretaceous S ˇ tramberk-type reef limestones are known from some parts of the Southern Carpathians in Romania. The Upper Jurassic deposits mainly consist of massif reef limestones including a variety of microbialites associated with micro-encrusters. They played an important role in the formation and evolution of the reef framew...
Article
The Lower Badenian deposits from the western border of the Transylvanian Basin developed on a littoral carbonate platform, and consist of red algae-dominated sediments. Green algae (halimedacean Bryopsydales and Dasycladales) are reported from the upper part of the succession of Gârbova de Sus Formation, at Podeni. Halimeda segments occur together...
Article
Full-text available
A rich association of benthic foraminifera was discovered in the Upper Jurassic carbonate sequence belonging to the Ardeu Unit of the Metaliferi Mountains. Large agglutinated species (mesoendothyrids, valvulinids and cyclamminids) are the most frequent, some of them being recorded for the first time in Romania. Many species are biostratigraphically...

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Projects

Projects (2)
Project
The main goal of this project is to integrate sedimentology and biostratigraphy in order to properly understand the Geological evolution of the easternmost sector of the Getic Carbonate Platform
Project
Micropaleontology, Sedimentology, Stratigraphy, Facies Analysis