Results 91 to 100 of about 1,086 (189)

Petrography, geothermobarometry and metamorphic history of metapelites from the Central Ruby Range, southwest Montana

open access: yes, 2015
The Ruby Range is one of several uplifted Precambrian blocks in southwest Montana, near the northwestern margin of the Archean Wyoming province. It was metamorphosed during the Big Sky orogeny ~ 1.72-1.79 Ga (Baldwin et al., 2014; Cramer et al., 2013 ...
Hamelin, Clémentine
core   +1 more source

A Clockwise P-T Path from the Variscan Basement of the Tisza Unit, Pannonian Basin, Hungary

open access: yesGeologia Croatica, 2010
The polymetamorphic basement of the Tisza Unit forms a detachedfragment of the Variscan European foreland of the Neotethyanrealm. A clockwise evolution path of a gneiss-amphibolite complexof the Tisza Unit was reconstructed, investigating the ...
Peter Arkai, Peter Horvath, Geza Nagy
doaj   +1 more source

Natural evidence for garnet-spinel transition (GST) in the Earth's mantle [PDF]

open access: yes, 2008
This study based on compiled world-wide garnet peridotite data confirms the GST in high P and T conditions, which was obtained from Al-free experimental system (MgO-Cr~2~O~3~-SiO~2~) by Klemme (2004). A new spinel-phase peridotite zone, garnet peridotite
BenXun Su
core   +1 more source

Supplemental Material: Neoarchean polymetamorphism in the West Shandong massif, North China Craton: Implications for a multiphase sagduction model

open access: yes
Table S1: Selected microprobe analyses for samples 21L21, 23L15, and 23L20 in the Mengjiatun area. Table S2: Zircon and titanite isotopic data for samples 21L21, 23L15, and 23L20 in the Mengjiatun area.
Cheng-Cheng Xue (24177152)   +1 more
core   +1 more source

Migmatization of Archean aluminous metasediments from the eastern Beartooth Mountains, Montana, U.S.A. [PDF]

open access: yes, 2004
Geothermobarometry, mineral compositions and textures, and thermodynamic models suggest biotite dehydration melting occurred in the peraluminous rocks of the eastern Beartooth Mountains. These Archean metapelitic migmatites are metatexites and diatexites,
Maas, Andrew T., null null, Andrew Maas
core   +1 more source

Supplemental Material: Metamorphic evidence of the Kuunga orogeny in South China: High-pressure pelitic granulites and gneisses from the Gaozhou Complex

open access: yes
The supplemental material includes tables of rock and mineral compositions, geothermobarometry results, and zircon dating data. Figures show garnet and biotite compositions and metamorphic pseudosections.
Laixi Tong (20782748)   +2 more
core   +1 more source

The Wongwibinda Complex, New England fold belt: a tilted low-P high-T terrane?

open access: yes, 2018
The Wongwibinda Complex is a rare exposure of deep low-pressure, high-temperature (low-P, high-T) New England Fold Belt near Armidale, NSW. The west to east thermal gradient in the Complex, which ranges from virtually unmetamorphosed sediments to ...
Cara Danis (441136)
core   +1 more source

P–T conditions of anthophyllite- and garnet-bearing metapelites of the Nunatarsuaq domain, Nagssugtoqidian orogen, West Greenland

open access: yesGEUS Bulletin
Anthophyllite- and garnet-bearing metapelites from the Nunatarsuaq domain, located north of the UNESCO World Heritage site Ilulissat Icefjord (Kangiata Sullua) in Greenland at the northern margin of the Nagssugtoqidian orogen, enable a first quantitative
Valdemar O. Enevoldsen   +6 more
doaj   +1 more source

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