Roland Gorbatschev

Lund University

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Svetlana Bogdanova

Stavropol State Agrarian University

Eric Welin

Swedish Museum of Natural History

Elena Bibikova

AstraZeneca (United States)

Gábor Gaál

Geological Survey of Finland

R. G. Garetsky

Institute of Nature Management

Gražina Skridlaitė

Vilnius University

L. Taran

National Academy of Sciences of Belarus

Randell Stephenson

University of Aberdeen

Ebbe Zachrisson

Geological Survey of Sweden

Torbjörn Skiöld

Swedish Museum of Natural History

Cooperative Institutions

Lund University

Russian Academy of Sciences

Geological Survey of Sweden

Czech Academy of Sciences, Institute of Geology

Swedish Museum of Natural History

Geological Institute

Geological Survey of Finland

Uppsala University

Vrije Universiteit Amsterdam

Institute of Geophysics

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Preface

Precambrian Research (1993)

Roland Gorbatschev

Titanite

10.1016/0301-9268(93)90065-a

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A Study of Svecofennian Supracrustal Rocks in Central Sweden: Lithological Association, Stratigraphy, and Petrology in the Northwestern Part of the Mälaren—Hjälmaren Basin

Geologiska Foereningan i Stockholm Foerhandlingar (1969)

Roland Gorbatschev

Abstract Consideration is given to supracrustal Svecofennian rocks in the Orebro area and their migmatized continuation eastward. It is demonstrated that the strict subdivision of the Early Svecofennian Leptite Formation into a lower group of volcanics and an upper group of sediments docs not apply in the northwestern part of the Malaren—Hjälmaren basin. The lithological association implies intimate interbedding of units which have previously been considered typical of the two different subdivisions of the Leptite Formation. The cumulative strati-graphical thickness is between three and four kilometers, the rocks are leptites, metaargillites, metaarenites, rudites, and carbonate rock. The different units are arranged into a local stratigraphical succession. Petrographical data are given for the main supracrustal rock varieties and the origin of leptites is discussed.

10.1080/11035896909451899

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Citations (7)

Aspects of the Proterozoic boundary between SE and SW Sweden

Roland Gorbatschev Svetlana Bogdanova

Source

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Citations (2)

U/Pb zircon ages of basement gneisses and discordant felsic dykes from Vestranden, westernmost Baltic Shield and central Norwegian Caledonides

Geologische Rundschau (1991)

Björn Schouenborg Leif Johansson Roland Gorbatschev

Baltic Shield

Migmatite

Basement

Pegmatite

Anatexis

Felsic

10.1007/bf01828771

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Citations (16)

EUROPE | East European Craton

Elsevier eBooks (2005)

Svetlana Bogdanova Roland Gorbatschev R. G. Garetsky

10.1016/b0-12-369396-9/00426-3

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Citations (40)

The East European Craton (Baltica) before and during the assembly of Rodinia

Precambrian Research (2007)

Svetlana Bogdanova Bernard Bingen Roland Gorbatschev Т. Н. Хераскова V. I. Kozlov

Rodinia

Baltica

Orogeny

10.1016/j.precamres.2007.04.024

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Citations (417)

Palaeoproterozoic U-Pb zircon ages from Belorussia: new geodynamic implications for the East European Craton

Precambrian Research (1994)

Svetlana Bogdanova Elena Bibikova Roland Gorbatschev

Baltic Shield

Basement

10.1016/0301-9268(94)90031-0

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Citations (45)

Rb—Sr age of the Lane granites in south-western Sweden

Geologiska Foereningan i Stockholm Foerhandlingar (1978)

Eric Welin Roland Gorbatschev

Abstract The Rb—Sr age of the red, acid granites which intrude into the older, granitoid plutonics of the Åmål mega-unit is 1458 ± 28 Ma. The period around 1450 Ma thus emerges as one of considerable plutonic activity in south-western Sweden.

10.1080/11035897809448565

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Citations (22)

A profile through the central scandinavian caledonides

Tectonophysics (1980)

D Dyrekius David G. Gee Roland Gorbatschev Hans Ramberg Ebbe Zachrisson

Basement

Thrust fault

10.1016/0040-1951(80)90213-9

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Citations (26)

Rb—Sr dating of rocks in the Värmland granite group in Sweden

Geologiska Foereningan i Stockholm Foerhandlingar (1977)

Eric Welin Roland Gorbatschev Per H. Lundegårdh

Abstract Thirteen samples of Värmland granites from south-eastern Värmland, Sweden, have been subjected to a Rb—Sr dating study. Most of the studied samples subdivide into two groups defining two separate isochrons of closely similar age but different initial 87Sr/86Sr ratios. Five samples from a southern sub-area of Filipstad granite around Filipstad and Karlskoga have yielded a Rb-Sr age of 1700 ± 37 Ma at an initial 87Sr/86Sr ratio of 0.7068 ± 0.0021. Five samples from the northern sub-area of Hagfors—Ekshärad—Uvanå, together with two samples from the vicinity of Kristinehamn, form another isochron of 1689 ± 30 Ma with an initial Sr-isotopic ratio of 0.7021 ± 0.0006. One sample could not be assigned to either isochron and is intermediate between them. The differentiation of Värmland-group granites into separate complexes and types is also brought out by field data and geochemical characteristics.

Isochron dating

10.1080/11035897709455038

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Citations (38)