86 research outputs found
Correlation of the lithostratigraphic profiles in the Paleogene basins in the Republic of Macedonia
No full textDuring the Upper Cretaceous - Paleocene, after closure of the Vardar Ocean and collision processes (Laramie orogeny phase), on the territory of the Vardar zone and Serbian - Macedonian massif, in conditions of extension, were formed continental trenches where Paleogene molassa sediments are deposited. Lithostratigraphical structure of Paleogene sediments in the basins can be analysed on numerous open cross sections. Deep drilling was performed in the Tikves and Ovce Pole basin ( to 2703 m ). Paleogene sediments have been identified as Upper Eocene - Priabonian and Lower Oligocene (Maksimovič et al., 1954; Dzuranov et al., 1999; Stojanova, 2008), with a maximum thickness of 3000 - 4000 m
Biostratigraphic correlation of the Paleogene sections in the Ovče Pole Basin,Republic of Macedonia
No full textThe Ovče Pole Basin is a large Paleogene sedimentary
mass with NW–SE trend that is superimposed on varied
rocks from the eastern part of the Vardar Zone in
the territory of the Republic of Macedonia (Fig. 1). It
is composed of 3.5 km thick succession, which is subdivided
into four units: basal unit, lower flysch unit,
unit of yellow sandstones and upper flysch unit. The
Paleogene sediments of the Ovče Pole Basin usually
contain abundant foraminiferal associations, which
are represented by a large number of specimens, referred
to diverse planktonic and benthic species. The
latter enabled a Late Eocene–Early Oligocene ages to be determined (Maksimovič et al., 1954; Stojanova et
al., 2012, 2013)
Benthic Foraminiferal Morphogroups from the Paleogene of the Republic of Macedonia – preliminary data
No full textThe Paleogene sediments of the Republic of Macedonia
contain diverse benthic foraminiferal microfauna
(geological sketch-map with the distribution of the
Paleogene sedimentary basins and the locations of the
studied sections containing foraminifers were recently
published by Stojanova et al., 2013). A total of 65
species have been recorded and described previously
(Džuranov et al., 1999; Valchev et al., 2013a, b). This
high taxonomic diversity led us to do the first step
for estimating the paleoecological significance of the
foraminiferal assemblages – a definition of groups of
tests based on characteristic features of their morphology.
On the basis of test shape (i) and the nature of
test coiling (i.e. chamber addition) (ii), we defined and
illustrated 11 morphological groups (morphogroups or
morphotypes) (see Fig. 1)
Lithostratigraphic characteristics of paleogene basins in the Republic of Macedonia
No full textThe Paleogene is one of the most intriguingintervals in the Earth history, marked by significantchanges in paleodynamic, palaeoclimate and inmarine productivity.Paleogene sediments are widespread in theRepublic of Macedonia and preserved with considerablythick masses on the Vardar zone, and insmaller relict masses on the Serbian-Macedonianmassif. During the Upper Cretaceous-Paleocene,after closure of the Vardar Ocean and collisionprocesses (Laramie orogeny phase), on the territoryof the Vardar zone and Serbian-Macedonianmassif, in conditions of extension, were formedcontinental trenches where Paleogene molassasediments are deposited. Early accumulation ofPaleogene sediments began with continental terrigenoussediments and, with gradual deepening ofthe environment, sedimentation was transformedinto marine sedimentation. After the formation ofthe Eocene-Oligocene sediment mass, during theUpper Miocene-Oligocene, it was subjected toPirinei-Sava compression, where Paleogene masswas dislocated, raised, faulted and exposed to intensiveerosion.Lithostratigraphical structure of Paleogene sedimentsin the basins can be analyzed on numerousopen cross sections. Deep drilling was performedin the Tikveš and Ovče Pole basin (to 2703 m).Paleogene sediments have been identified as UpperEocene – Priabonian and Lower Oligocene (Maksimovičet al., 1954; Dzuranov et al., 1999; Stojanova,2008) with a maximum thickness of 3000 –4000 m
Main Characteristic of Gold in Some Deposits and Occurrences +Related to Tertiary Magmatism in Republic Macedonia
No full textIn R. Macedonia there are many occurrences of gold (Bogoevski, 1998). In this report, comparative analysis is presented for several ore occurrences related with Tertiary magmatism in the R. MacedoniaBorovic, Borov Dol, Plavica and Alshar. The localities selected belong to two major geotectonic units -the Vardar zone (ore deposits Borov Dol, Alshar and ore occurrence Borovic) and the Serbo-Macedonian massif (plavica ore deposit). The Tertiary magmatism of calc-alkaline type is most important for ore-forming processes in the region. The host rocks of the localities are mostly presented by volcanic sediments and volcanic and subvolcanic facies of latite, quartzlatite, andesite, basalt and their pyroclastics (ignimbrites, tuffs and breccias) (Stefanova et aI., 2004b). The literature data point out the Oligo-Miocene age of the magmatism for the Buchim and Kratovo-Z1etovo ore regions, while the Kozuf area is the magmatism is of the Miocene-Pliocene age (Boev et aI., 1993; Boev, Kovachev, 1994)
Применети методи на истражување на појави и наоѓалишта на злато во Р. Македонија
No full textВо овој труд се опфатени методите на проспекција на појавите на злато, поврзани за терциерниот магматизам во Р. Македонија, на четири локалитети. За регионална проспекција на минерализацијата на злато се земаа примероци за стрим седименти и се изврши шлиховање. Од материјалот за стрим седименти се направени испитувања со една посебна т.н. БЛЕГ метода со цел да се утврдат многу ниски содржини на злато
BIOSTRATIGRAPHIC CHARACTERISTICS OF UPPER - EOCENE SEDIMENTS IN THE SERBIAN-MACEDONIAN MASSIF, REPUBLIC OF MACEDONIA
No full textBiostrattigraphic characteristics of Upper-Eocene sediments in the Serbian-Macedonian massif, Republic of Macedonia
No full textThis paper presents the results of micropaleontological research of foraminiferal fauna and calcareous nannofossils research of the Upper-Eocene sediments in the Delchevo and Strumica basins on the territory of the Serbian-Macedonian massif in the Republic of Macedonia, which are very important in solving the stratigraphy of the sediments.
The studied micropalaeontological material was obtained from 31 samples coming from the upper flysh unit of 2 outcrop sections belonging to sedimentary basins: Delchevo and Strumica basin in the Serbian-Macedonian massif.The biostratigraphic significance of the foraminiferal fauna in the Upper-Eocene sediments is followed by stratigraphic distribution of 21 species of benthic and planktonic foraminiferal fauna, belonging to 18 genera and 15 families.The results of biostratigraphic nannofossil research revealed that the samples contain well preserved specimens of 17 species.Systematic classification of the foraminiferal fauna was done after Loeblich and Tappan (1988)
BIOSTRATIGRAPHIC CHARACTERISTICS OF PALEOGENE SEDIMENTS IN THE VARDAR ZONE, REPUBLIC OF MACEDONIA
No full textCorrelation of stratigraphic distribution of the foraminifers in the Ovče pole and Tikveš paleogene basin, the Republic of Macedonia
No full textThe Ovce Pole and Tikves paleogene basins are big sedimentary complexes, which belong to the eastern and central part of the Vardar zone within the territory the territory of the Republic of Macedonia.
In accordance to previos studies, the age of the Paleogene sediments (based on numerous fossilis from the microfossil groups) in the Ovcepole and Tikves basins has been determined as Upper Eocene.
The paper the results of the micropaleontological investigations on the plankton foraminiferal fauna, found in the upper flish lithozones of the OP-1 (Ovce Pole basin) and KR-1 (Tikves basin) drill holes. The biostratigraphical value of the plankton foraminifer fauna in drillings OP-1 and KR-1 gave us the cahce to divide one local biostratigraphical zone in the Ovce Pole and Tikves basin.
In relation to this, correlation of the biostratigraphical zones was made between the Ovce Pole and Tikves paleogene basen
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