Results 111 to 120 of about 982 (167)

Rapakivi texture

, 2006
openaire   +1 more source

Origin and age of the Eisenkappel gabbro to granite suite (Carinthia, SE Austrian Alps).

Lithos, 2011
Miller C, Thöni M, Goessler W, Tessadri R.   +3 more
europepmc   +1 more source

GEOCHEMICAL ASPECTS OF ATMOSPHERIC EVOLUTION [PDF]

Proc Natl Acad Sci U S A, 1965
europepmc   +1 more source

PETROGRAPHIC COMPOSITION OF RAPAKIVI GRANITE-ANORTOSITE COMPLEXES

, 2008
Full facial and petrographic composition of precambrian rapakivi granite-anorthosite association is defined in the article. Determiative compositional features and the volume of the formation also are specified.
openaire   +1 more source

Migmatite and Rapakivi Granite in the South Finland

Journal of Geography (Chigaku Zasshi), 2006
openaire   +2 more sources

The origin of rapakivi texture by sub-isothermal decompression

Precambrian Research, 1999
Abstract The rapakivi texture (plagioclase-mantled K-feldspar ovoids, rounded quartz megacrysts and euhedral plagioclase megacrysts in a more fine-grained granitic matrix) has been studied in five Proterozoic (1.64–1.55 Ga) anorogenic rapakivi granite batholiths in the Fennoscandian Shield with emphasis on mineral stability and inherited cores.
Shebanov, AD,, Eklund, O,
exaly   +3 more sources

Some of the next articles are maybe not open access.

Related searches:

Rapakivi granites and related rocks: an introduction

Precambrian Research, 1999
Abstract This article is an introductory chapter for the proceedings of the last, seventh, meeting of the International Geological Correlation Programme (IGCP) Project 315 “Correlation of Rapakivi Granites and Related Rocks on a Global Scale”, 1991–1996.
Ilmari Haapala, O T Ramó
exaly   +2 more sources

One hundred years of rapakivi granite

Mineralogy and Petrology, 1995
Rapakivi granites, recently redefined as A-type granites showing rapakivi texture at least in the larger batholiths, occur on all continents and presumably represent the most voluminous continental silicic intraplate magmatism on Earth. Most of the rapakivi granites are Proterozoic (mainly 1.0 to 1.7 Ga) but also Archean (2.8 Ga) and Phanerozoic (0.05 ...
Ilmari Haapala, O T Ramó
exaly   +2 more sources

Rapakivi granites in the geological history of the earth. Part 1, magmatic associations with rapakivi granites: Age, geochemistry, and tectonic setting

Stratigraphy and Geological Correlation, 2009
Rapakivi granites characteristic practically of all old platforms are greatly variable in age and irregularly distributed over the globe. Four types of magmatic associations, which include rapakivi granites, are represented by anorthosite-mangerite-charnockite-rapakivi granite, anorthosite-mangerite-rapakivi-peralkaline granite, gabbro-rapakivi granite-
A M Larin
exaly   +2 more sources

Rapakivi granites from Brazil and adjacent areas

Precambrian Research, 1999
Abstract A review of the rapakivi magmatism in Brazil and adjacent areas demonstrates that the dominantly felsic anorogenic complexes of the Amazonian craton can be considered as rapakivi suites. They are found in almost all provinces of the craton and are concentrated in the timespan covering the end of the Palaeoproterozoic until the beginning of ...
R Dall'Agnol
exaly   +2 more sources