Results 41 to 50 of about 8,361 (213)
ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi +4 more
wiley +1 more source
MIAROLITIC MINERALS FROM THE MALY KUYBAS MAGNETITE SKARN DEPOSIT [PDF]
The Maly Kuybas magnetite skarn deposit is located in the Magnitogorsk mining district (Southern Urals) 15–18 km northeast from the town of Magnitogorsk. The exploitation of the deposit began in the 1970s and the open pit is currently exploited.
S.G. Epanchintsev, V.A. Popov
doaj
Abstract The assembly and breakup of the supercontinent Rodinia set the stage for Earth system evolution through the Neoproterozoic Era. Laurentia, the central craton in Rodinia, lacks well‐dated paleomagnetic poles between ca. 990 Ma and 780 Ma. In this study, we develop new U‐Pb petrochronology and thermochronology data sets from zircon, garnet ...
Yiming Zhang +6 more
wiley +1 more source
DISTRIBUTION OF TRACE ELEMENTS IN PEROVSKITE FROM SKARNS AND CALCITE VEINS OF THE CHERNAYA RECHKA AND NAZYAM RIDGES (SOUTH URALS) [PDF]
Trace element distribution and crystal morphology of perovskite from garnet-vesuvianite skarn of the Akhmatovskaya mine and chlorite-perovskite-calcite veins of the Perovskitovaya mine (South Urals) were studied using LA-ICP-MS.
S.Yu. Stepanov +3 more
doaj
Twenty new species of Hieracium sect. Tridentata and H. sect. Foliosa (Asteraceae) from Sweden
Nineteen new, presumably apomictic species of Hieracium sect. Tridentata, namely Hieracium anisodontum, H. bicoloriceps, H. disparifolium, H. ditrichum, H. erectifolium, H. ferox , H. lapsanae, H. luteoviride, H. megaplicatum, H. multifolium, H. paer‐haraldii, H. perpendiculum, H. phaeochlorum, H. prasiniceps, H. semirigidum, H.
Tommy Nilsson, Torbjörn Tyler
wiley +1 more source
KNaCaSi4O10 Obtained From Crystallization Experiments in the Quaternary System K2O–Na2O–CaO–SiO2
The compound KNaCaSi4O10 has been identified in crystallization experiments of glasses in the quaternary system K2O–Na2O–CaO–SiO2 and has undergone structural characterization. Vibrational spectroscopic data have been acquired and interpreted using density functional theory (DFT) calculations.
Volker Kahlenberg +2 more
wiley +1 more source
Abstract Fluids released from subducting hydrated rocks influence volcanism, tectonics, and geochemical cycling, but the mechanisms of fluid escape in subduction zones remain poorly understood. We address this issue by investigating the Erro‐Tobbio meta‐serpentinites (ET‐MS), Italy, exhumed serpentinite rocks that preserve extensive dehydration vein ...
Austin Arias +5 more
wiley +1 more source
Paleocene to Oligocene tectonic processes in northwest Iran resulted in extensive I-type calc-alkaline and alkaline magmatic activity in the Ahar region.
Mollai Habib +2 more
doaj +1 more source
The Peak Range Volcanics in central Queensland, Australia is naturally enriched with REEs (Rare Earth Elements). Fieldwork was conducted to analyse REEs in plant species occurring in this area. ABSTRACT Rare Earth Elements (REEs) are critical for high‐tech technologies in the green energy transition.
Amelia Corzo‐Remigio +3 more
wiley +1 more source
NEW METALLOGENIC ASPECTS OF SKARNS FROM THE PITKARANTA ORE PROVINCE
The original results of high-precision mineralogical and geochemical studies of the skarn ore samples from the Pitkaranta Ore Province are reported. The main mineral ore assemblages, including 58 minerals revealed there for the first time (roquesite ...
Василий Иванович Иващенко +3 more
doaj +1 more source

