Results 71 to 80 of about 982 (167)

Genèse d'un granite Rapakivi par transformation de grès arkosiens Lavras : Rio Grande do Sul, Brésil

open access: yes, 1962
Goñi Juan C. Genèse d'un granite Rapakivi par transformation de grès arkosiens Lavras : Rio Grande do Sul, Brésil. In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 85, 1, 1962. pp.
Goñi, Juan
core   +1 more source

Magmatismo do batólito rapakivi Rio Branco, sw do Cráton Amazônico (MT)

open access: yes, 2011
Rio Branco Rapakivi Batholith is located on the southwestern portion of the Amazonian Craton in Mato Grosso and belongs to the Cachoeirinha Tectonic Domain, part of the Rio Negro-Juruena Geochronological Province, Central Brasil.
de Araújo, Larissa Marques Barbosa   +1 more
core   +1 more source

Some progress on understanding the Phanerozoic granitoids in China

open access: yesChina Geology, 2018
: There are large volumes of the Phanerozoic granitoid rocks in China and neighboring areas. In recent years, numerous new and precise U-Pb zircon ages have been published for these granitoids, and define many important magmatic events, such as ca.
Tao Wang   +8 more
doaj   +1 more source

Rapakivi feldspars in the Deer Isle pluton, Maine: Distribution, characterization and the role of decompression vs. magma mixing in their formation

open access: yes, 2003
The Deer Isle pluton is an edenite-biotite granite with ubiquitous rapakivi feldspars. It has been divided into four facies, the Flye Point facies, Oak Point facies, Settlement Quarry facies and the Crotch Island facies based on mineralogical and ...
Terrien, Jessica Jean
core   +1 more source

An updated review of major-element geochemistry, redox systematics, and petrogenesis of the Märjamaa and Kloostri rapakivi granites, Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences
The ~1.62 Ga Märjamaa and Kloostri rapakivi intrusions of western Estonia record a tripartite magmatic evolution during the late stages of the Wiborg rapakivi suite, emplaced in a transtensional pull-apart setting related to shear-zone reactivation ...
Juan David Solano-Acosta   +2 more
doaj   +1 more source

Magmatismo rapakivi en la cuenca media del río Inírida, departamento de Guainía, Colombia. [PDF]

open access: yes, 2016
In eastern Colombia, the crystalline basement is intruded by several anorogenic granites of Mesoproterozoic age. One of these anorogenic granitic intrusions outcrops in the area of the indigenous Matraca and Dantacommunities, at the middle Inirida River ...
Frantz, Jose Carlos   +5 more
core  

Stressed states and deformations of the earth's crust of the central part of the Ingul megablock according to the materials of the tectonophysical study of the Novoukrainsky massif

open access: yesГеофизический журнал, 2011
The results of the field tectonophysical studies done in the central part of the Ukrainian Shield (USh) in 2005-2009 show that the Novoukrainian massif of the trahite-like granites was formed as a result of the latitudinal crustal extension 2,05 billion ...
O.B. Gintov, S. V. Mychak
doaj   +1 more source

Microorganisms in Superficial Deposits on the Stone Monuments in Saint Petersburg. [PDF]

open access: yesMicroorganisms, 2022
Sazanova KV   +5 more
europepmc   +1 more source

RAPAKIVI GRANITES, SOUTH-GREENLAND - HYDROTHERMAL ALTERATION OF IGNEOUS LAYERING

open access: yes, 1990
Igneous layering is developed in the Proterozoic rapakivi granite suite of South Greenland in an area on the south-easternmost coast of the island of Angnikitsoq. The layering at this locality is unusual in that it is defined by interstitial phases.
FINCH, A A   +3 more
core   +1 more source

Mesoproterozoic Strike-Slip Faulting within the Åland Rapakivi Batholith, Southwestern Finland

open access: yesTektonika
Paleostress inversion analysis of outcrop data from brittle fault structures within the Mesoproterozoic 1.58 Ga Åland rapakivi granite, southwestern Finland, revealed two separate strike-slip faulting stages. Stage 1 is dominated by dextral slip along E–
Nicklas Nordbäck   +5 more
doaj   +1 more source

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