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Introduction
Publications
Publications (11)
The relative durations of ammonite biozones and selected ammonite taxa, as well as some bioevents associated with coeval Lower–Middle Jurassic benthic taxa are represented herein. Based on linked Sr-isotope data, we found a notable difference in the time spans of the zones and in the relative longevity of the guiding ammonite genera around the Plie...
The paper provides new insight on the choice of correct space group for description of scapolite crystal structures, with a view of the preferred positions by Si and Al ions and their framework ordering. Samples of scapolite from a skarn zone around Urdini lakes, Northwestern Rila have been analysed with SEM-EDS and single crystal X-ray diffraction...
Samples of scapolite from the marble quarry from the Samurski Dol locality, situated nearby Chepelare, Central Rhodopes, Bulgaria have been subjected to chemical analyses and single crystal X-ray diffraction studies. The obtained values for the meionite component (Me) range between 70 and 75. The crystal structure of the studied sample has been sol...
New investigations on the columbite from Vishteritsa locality, Western Rhodopes have been performed in order to obtain precise data on its chemical composition and thus to determine its particular mineral species type in the light of the changes in the nomenclature and classification of the columbite group undertaken by IMA since 2007. The capabili...
In this study, we report the first discovery of microdiamond inclusions in kyanite–garnet schists from the Central Rhodope Mountains in Bulgaria. These inclusions occur in garnets from metapelites that are part of a meta-igneous and meta-sedimentary mélange hosted by Variscan (Hercynian) orthogneiss. Ultra-high-pressure (UHP) conditions are further...
The Zimevitsa Plateau is the highest elevated area of the Ponor Planina Mt. (W Balkan Mts., W Bulgaria). It is a prominent outlier that is composed of thick Jurassic–Lower Cretaceous rocks. It comprises sever-al distinct late Alpine disharmonic folds with NW–SE structural arrangement (Moskovski, 2001), which are developed on Bathonian–Berriasian he...
The Zimevitsa Plateau is the highest elevated area of the Ponor Planina Mt., westwards the Iskar River Gorge (West Balkan Mts., West Bulgaria). It is a prominent outlier that is composed of thick Jurassic–Lower Cretaceous rocks. It comprises several prominent late Alpine disharmonic folds with NW-SE structural arrangement (Moskovski, 2001), which a...
Being abound in its spectacular scientific collections of species of the living and the non-living nature, the National Museum of Natural History of Bulgarian Academy of Sciences is one of the biggest museum institutions dealing with the natural history heritage of the Balkans. It was founded in 1889 as " Natural History Museum " by Prince Ferdinan...
The new classified catalogue of mineral species is based on the systematics of KOSTOV (1993). It comprises all specimens registered in the Museum untill 2001. Part 1 includes mineral species from the first four mineral classes: native elements, Sulphides and Sulphosalts, Oxides and Hydroxides, and Halogenides. Here 238 species, 10 varieties, and 5...
The third part of the catalogue includes mineral species from the last eight mineral classes: Borates; Phosphates, Arsenates and Vanadates; Wolframates and Molybdates; Sulphates, Selenites and Tellurites; Chromates; Carbonates; Nitrates and Iodates; Organic minerals, in the collection of the National Museum of Natural History, Sofia. The collection...