Results 101 to 110 of about 3,793 (208)
Swiss Journal of GeosciencesThe Early Permian in the present-day Europe area was a time when a major tectonic shift occurred, leading from the tectonic collapse of the Variscan orogeny to the crustal extension and thinning that characterized the Early Permian times.
Stefano Zanchetta +3 more
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Геодинамика и тектонофизикаThe paper presents data on the geological position, age and features of the material composition of the Saram massif granitoids, located in the northwestern part of the Malkhan ridge of Western Transbaikalia.
A. L. Elbaev +4 more
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The top-to-the-southeast Sarzeau shear zone and its place in the late-orogenic extensional tectonics of southern Armorica [PDF]
, 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
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Геодинамика и тектонофизикаThe paper deals with the petrogeochemical composition and U-Pb (SHRIMP-II) age (753±6 Ma) of subalkaline leucogranites and syenites from the Khariusikha massif of the Yenisei Ridge, which contain rare-metal mineralization.
A. D. Nozhkin, O. M. Turkina
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, 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
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Anais 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
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Extensive crystal fractionation of high-silica magmas revealed by K isotopes. [PDF]
Sci Adv, 2022 Wang ZZ +6 more
europepmc +1 more source
Thermal Constraints on the Emplacement Rate of a Large Intrusive Complex: The Manaslu Leucogranite, Nepal Himalaya [PDF]
, 2017 The emplacement of the Manaslu leucogranite body (Nepal, Himalaya) has been modelled as the accretion of successive sills. The leucogranite is characterized by isotopic heterogeneities suggesting limited magma convection, and by a thin (
ANNEN, C. +2 more
core
Metamorphic constraints on the character and displacement of the South Tibetan fault system, central Bhutanese Himalaya [PDF]
, 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
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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]
Geologia 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
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