Results 121 to 130 of about 153,773 (348)
Trace Element Characterisation of MAD‐559 Zircon Reference Material for Ion Microprobe Analysis
Geostandards and Geoanalytical Research, 2018 We document the composition of a natural zircon gemstone sourced from Madagascar, MAD‐559 – a new reference material for calibrating trace element mass fractions in zircon measured by SIMS.
M. Coble +7 more
semanticscholar +1 more source
Terra Nova, EarlyView.ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito +4 more
wiley +1 more source
Siberian Journal of Life Sciences and AgricultureCajander larch (Larix cajandery Mayr.) is the eastern race of Gmelin larch, the main forest-forming species in the Amur Region and the Primorsky Territory. It is widely used in the national economy. It is promising for landscaping.
Valentina Yu. Ostroshenko +1 more
doaj +1 more source
LATE DEVONIAN VERKHNEURALSK VOLCANIC-PLUTONIC ASSOCIATION (EAST MAGNITOGORSK PALEOISLAND ARC, SOUTH URALS): AGE, PETROLOGY, GEOCHEMISTRY, ORE POTENTIAL AND GEODYNAMIC SETTING [PDF]
МинералогияThe geology and petrogeochemical features of the Verkhneuralsk volcanic-plutonic association in the South Urals are characterized. The relevance of the work is determined by necessary analysis of magmatic evolution of the region to clarify ideas on ...
T. N. Surin
doaj +1 more source
Contrasting Granite Metallogeny through the Zircon Record: A Case Study from Myanmar
Scientific Reports, 2017 Granitoid-hosted mineral deposits are major global sources of a number of economically important metals. The fundamental controls on magma metal fertility are tectonic setting, the nature of source rocks, and magma differentiation.
N. Gardiner +6 more
semanticscholar +1 more source
Dating C/S Structures in Syntectonic Granites by In Situ Rb‐Sr Analyses on Muscovite
Terra Nova, EarlyView.ABSTRACT The interplay of crystallisation, deformation and fluid–rock interactions makes deciphering geochronological information complex in syntectonic granites. In this study, we apply in situ Rb‐Sr analyses to selected samples from the Questembert Variscan syntectonic granite in Western France, which was emplaced along the South Armorican Shear Zone
Philippe Boulvais, Romain Tartèse
wiley +1 more source
GeosciencesThe Marun–Keu complex plays a significant role in our understanding of the geological evolution of the Ural orogen; however, it remains poorly understood.
Laysan Salimgaraeva +5 more
doaj +1 more source
Ages on weathered Plio-Pleistocene tephra sequences, western North Island, New Zealand [PDF]
, 2001 Using the zircon fission-track method, we have obtained five ages on members of two strongly-weathered silicic, Pliocene-Pleistocene tephra sequences, the Kauroa and Hamilton Ash formations, in western North Island, New Zealand.
Briggs, Roger M. +5 more
core +1 more source
Topographic Development History of the Alaska Range [PDF]
, 2013 he overall goal of this project is to use variations in sediment source through time as a proxy for deciphering the uplift history of the Alaska Range (Fig. 1).
Davis, Kailyn
core