Results 101 to 110 of about 3,780 (205)

Metamorphic constraints on the character and displacement of the South Tibetan fault system, central Bhutanese Himalaya [PDF]

open access: yes, 2012
The South Tibetan fault system (STFS), a family of primarily extensional faults that separates the metamorphic core of the Himalaya (expressed as the Greater Himalayan sequence (GHS)) from overlying, predominately unmetamorphosed Tibetan sedimentary ...
Adams, Byron   +2 more
core   +2 more sources

The top-to-the-southeast Sarzeau shear zone and its place in the late-orogenic extensional tectonics of southern Armorica [PDF]

open access: yes, 2009
International audienceThis study presents new structural and monazite chemical U-Th/Pb geochronological constraints for the magmatic rocks of the Golfe du Morbihan area, in southern Brittany, south of the South Armorican shear zone (SASZ).
Augier, Romain   +2 more
core   +3 more sources

The crystalline units of the High Himalayas in the Lahul-Zanskar region (northwest India): metamorphic-tectonic history and geochronology of the collided and imbricated Indian plate [PDF]

open access: yes, 2017
In the High Himalayan belt of northwest India, crustal thickening linked to Palaeogene collision between India and Eurasia has led to the formation of two main crystalline tectonic units separated by the syn-metamorphic Miyar Thrust: the High Himalayan ...
Benna, P.   +6 more
core  

Transpressive dextral shear in the Italva-Itaperuna section, Northern State of Rio de Janeiro, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2008
Structural analysis carried out on a segment of the Neoproterozoic Ribeira Belt, southeastern Brazil, show that it represents part of the transpressive dextral orogen related to the Central Mantiqueira Province.
Tiago R. Karniol   +2 more
doaj   +1 more source

Relationships between magmatism and extension along the Autun-La Serre fault system in the Variscan Belt of the eastern French Massif Central [PDF]

open access: yes, 2011
International audienceThe ENE-WSW Autun Shear Zone in the northeastern part of the French Massif Central has been interpreted previously as a dextral wrench fault.
Choulet, Flavien   +3 more
core   +2 more sources

Neoproterozoic Anatexis of 2.9 Ga Old Granitoids in the Goiás-Crixás Archean Block, Central Brazil: Evidence From New SHRIMP U-Pb Data and Sm-Nd Isotopes [PDF]

open access: yesGeologia USP. Série Científica, 2003
The first SHRIMP U-Pb ages for granitoid rocks from the southern part of the Goiás-Crixás Archean Block (Caiçara andUvá complexes) are presented and discussed in combination with Sm-Nd isotopic data in order to elucidate the main aspectsof the geological
Márcio Martins Pimentel   +5 more
doaj  

Extensive crystal fractionation of high-silica magmas revealed by K isotopes. [PDF]

open access: yesSci Adv, 2022
Wang ZZ   +6 more
europepmc   +1 more source

Electron microprobe monazite geochronology of granitic intrusions from the Montes de Toledo batholith (central Spain) [PDF]

open access: yes, 2012
U–Th–Pb monazite dating by electron microprobe has been applied to three peraluminous granitic intrusions of the western Montes de Toledo batholith (MTB).
Cuesta, Andrés   +4 more
core   +1 more source

Electron microprobe monazite geochronology : a tool for evaluating magmatic ages with examples from Variscan Massif Central migmatites and granotoids, France.

open access: yes, 2006
U–Th–Pb dating of monazite with the electron probe microanalyser (EPMA) is increasingly documented as a reliable geochronological method offering high spatial resolution.
Be Mezeme, Eugène   +4 more
core   +4 more sources

Electrical structure of the Himalaya of Central Nepal: high conductivity around the mid-crustal ramp along the MHT [PDF]

open access: yes, 1999
Twelve broadband magnetotelluric (MT) soundings were performed across the Himalaya of Central Nepal in 1996 in order to determine the electrical structure of the crust and its relation to geological structures and active tectonics.
Avouac, Jean-Philippe   +9 more
core   +3 more sources

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