Founded 1934 by Prof. Dr Stefan Bončev
A Geo-Sciences Journal of the Geological Institute “Strashimir Dimitrov”, Bulgarian Academy of Sciences
Official Journal of the Carpathian-Balkan Geological Association

Ivo Sapunov

Lilia Dodekova
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Dinoflagellate cyst biostratigraphy of the Bathonian, Callovian, and the Upper Jurassic in North Bulgaria

Volume 51 2 August 2022

Lubomir Metodiev
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

The ammonite zones of the Bathonian in Bulgaria

Volume 46 2 November 2017

Veneta Belivanova
Geological Instilule, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Instilule, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

The pre-Callovian stratigraphic gap in the Central Balkanids: a key for the interpretation of other Early-Middle Jurassic gaps in Bulgaria

Volume 33 1-2 June 2003

Veneta Belivanova
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Features of some Early-Middle Jurassic diastems in Bulgaria

Volume 33 1-2 June 2003

Christo Dabovski
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24
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Ivan Boyanov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24
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Khrischo Khrischev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24
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Todor Nikolov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24
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Yotzo Yanev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24
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Ivan Zagorchev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Akad. G. Bonchev Str., block 24

Structure and Alpine evolution of Bulgaria

Volume 32 2-4 December 2002

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Veneta Belivanova
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Origin of the Early-Middle Jurassic stratigraphic gaps in the Central Balkanids

Volume 32 2-4 December 2002

Lubomir Metodiev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Aalenian and Lowermost Bajocian ammonites (Hammatoceratinae and early Otoitidae) from the Western and Central Balkan Mountains (Bulgaria)

Volume 31 3-4 December 2001

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Vladimir Shopov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Jurassic stratigraphy and geodynamics in the eastern part of the Central Balkan Mountains (Gabrovo and Kazanluk Districts), Bulgaria

Volume 29 3-4 December 1999

Lubomir Metodiev
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Representatives of the Toarcian ammonite genera Osperleioceras Krimholz, 1957 and Phlyseogrammoceras Buckman, 1901 in Bulgaria

Volume 29 3-4 December 1999

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

The Jurassic in the south-eastern part of Bulgaria (stratigraphy, geodynamics, facies and palaeogeographic evolution)

Volume 29 1-2 June 1999

Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

The Jurassic geological sites in North-West Bulgaria

Volume 28 3-4 December 1998

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Vladimir Shopov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

The Lower Jurassic in the Troyan Region and the south-eastern part of the Teteven Region, Central Balkanids (brachiopod-, bivalve-, and ammonite stratigraphy and palaeotectonics)

Volume 26 3 September 1996

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Book review: The second edition of the International Stratigraphic Guide

Volume 24 6 December 1994

Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Intraplate tectonics in the Bulgarian part of the Moesian Platform during the Jurassic

Volume 24 3 June 1994

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Vladimir Shopov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

The Lower Jurassic in a part of western Stara Planina Mts. (biostratigraphy and palaeotectonics)

Volume 24 2 April 1994

Иво Сапунов
Геологический институт „Страшимир Димитров“, БАН, 1113 София
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Платон Чумаченко
Геологический институт „Страшимир Димитров“, БАН, 1113 София
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А. Атанасов
Геолого-разведочное предприятие „Плевен“, 5800, Плевен
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А. Маринков
Геолого-разведочное предприятие „Плевен“, 5800, Плевен

Центральная Северная Болгария в юрский период

Volume 21 5 October 1991

Иво Сапунов
Геологический институт, БАН, 1113, София
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Платон Чумаченко
Геологический институт, БАН, 1113, София
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П. Митов
Геолого-разведочное предприятие „Михайловград”, 3400, Михайловград

Studia breviora: Новые данные о нижнеюрской части Озировской свиты, полученные скважинами у с. Селановци Северо-Западной Болгарии

Volume 19 3 June 1989

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113, Sofia

Personalia: Hollis D. Hedberg (1903 - August 14, 1988)

Volume 19 2 April 1989

Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Palaeontological evidence of a Precambrian age of the marbles at the Asenova Krepost Castle (Central Rhodopes, Bulgaria)

Volume 19 1 February 1989

Д. Жекова-Иванова
Геологический институт Болгарской акедемий наук, 1113 София
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Иво Сапунов
Геологический институт Болгарской акедемий наук, 1113 София
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Платон Чумаченко
Геологический институт Болгарской акедемий наук, 1113 София

Studia breviora: Романовдольский член, новый член Озировской свиты (нижний юрский отдел, г. Тетевен, Болгария)

Volume 18 6 December 1988

Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Ore mineralizations in the Lower Jurassic near Gradešnica Village, Teteven Area (Central Fore-Balkan, Bulgaria)

Volume 17 4 August 1987

Jerzy Lefeld
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Ivo Sapunov
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Platon Tchoumatchenco
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Deshka Bakalova
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Lilia Dodekova

Upper Jurassic-Lowermost Cretaceous sequences in the Inner Carpathians (Poland) and in the Balkanids (Bulgaria) - a comparison

Volume 16 6 December 1986

Иво Сапунов
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Платон Чумаченко
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Лилия Додекова
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Дешка Бакалова

Стратиграфия келловейских и верхнеюрских отложений Юго-Западной Болгарии

Volume 15 2 April 1985

Ivo Sapunov

Ammonite Stratigraphy of the Upper Jurassic in Bulgaria. IV. Tithonian: Substages, Zones and Subzones

Volume 7 2 June 1977

Ivo Sapunov

Ammonite Stratigraphy of the Upper Jurassic in Bulgaria. III. Kimmeridgian: Substages, Zones and Subzones

Volume 7 1 March 1977

Ivo Sapunov

Ammonite Stratigraphy of the Upper Jurassic in Bulgaria. II. Oxfordian: Substages, Zones and Subzones

Volume 6 4 December 1976

Ivo Sapunov

Ammonite Stratigraphy of the Upper Jurassic in Bulgaria. I. Rock and Ammonite Succesions

Volume 6 3 September 1976

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