Results 51 to 60 of about 29,586 (208)

Geochemical behavior of chromium in minerals of high-Mg rocks, associated with granitoid massifs of the Urals

Литосфера, 2019
Research subject. High-magnesium rocks associated with the granitoid massifs of the Urals are represented by gabbro-diorites and their melanocratic varieties (hornblendites), as well as by diorites and quartz diorites.
S. V. Pribavkin, G. A. Кallistov, Т. A. Оsipova, I. A. Gottman, E. A. Zin’kova   +4 more
doaj   +1 more source

Ceramic Production and Geodiversity in Iron Age Iberia: An Archaeometric Study of Pottery from Castrejón de Capote (SW Spain)

Archaeometry, EarlyView.
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot, Luis Berrocal‐Rangel, Manuel Fernández‐Götz   +2 more
wiley   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Uralitization – An example from Kuusamo, Finland [PDF]

Bulletin of the Geological Society of Finland, 1977
The course of events as well as the chemical changes associated with the alteration of clinopyroxenes to uralite have been studied from diabases in Kuusamo, Finland.
R. Piispanen, T. Alapieti
doaj   +1 more source

Genetic types and provenance indication of clastic amphibole in the South Yellow Sea

Frontiers in Marine Science
The main focus of studying sediment sources in marine areas is to determine the properties of clastic minerals originating from different rivers. Variations in the characteristics of clastic minerals occur due to differences in the types of source rocks ...
Mengyao Wang, Bingfu Jin, Jian Liu, Maosheng Gao, Jianhua Gao, Jianjun Jia   +5 more
doaj   +1 more source

Magnetic Anisotropy in Single Crystals: A Review

Geosciences, 2018
Empirical relationships between magnetic fabrics and deformation have long served as a fast and efficient way to interpret rock textures. Understanding the single crystal magnetic properties of all minerals that contribute to the magnetic anisotropy of a
Andrea R. Biedermann
doaj   +1 more source

Garnet-amphibole miaskites of the Ilmenogorsky miaskite massif (Southern Urals): Mineralogy and geochemistry

Литосфера, 2020
Research subject. This paper presents original findings about textural-structural, mineralogical, petrological, and geochemical features of the garnet-amphibole miaskites (firstes) of the Ilmenogorsky miaskite massif.Materials and methods. The microprobe
A. B. Nemov
doaj   +1 more source

Timing of Metamorphism and Deformation in the Neoarchean Quetico Metasedimentary Belt, Superior Craton, Constrained by Garnet Trace‐Element Mapping and Lu–Hf Geochronology

Journal of Metamorphic Geology, Volume 44, Issue 4, Page 265-286, May 2026.
ABSTRACT The Quetico subprovince of the Superior Province is among the largest metasedimentary belts globally and provides evidence of tectonic processes at play during the final stages of Archean cratonization. Although previous studies have shown that deformation and metamorphism of the 2.7‐Ga turbiditic protolith resulted in regional subvertical ...
Adrian G. Rehm, Antoine Godet, Doug Tinkham, Carl Guilmette, Matthijs A. Smit   +4 more
wiley   +1 more source

TYPOMORPHIC FEATURES OF MINERALS OF TI ORES FROM THE PIZHEMSKOE DEPOSIT [PDF]

Минералогия, 2016
The technology of production of concentrates of Ti minerals from ores of the Pizhemskoe deposit is improved and includes crushing, mechanical removal of slime films, desliming, gravitation concentration, classification, and magnetic separation.
A.B. Makeev
doaj  

The first data on paleomagnetism of Palaeoproterozoic rocks of the Serpovidny structure (the Kola region, northeastern Baltic Shield) [PDF]

Vestnik MGTU, 2016
The orientation of natural magnetization vector components in amphibolites and amphibole schists (magnetite up to 10 %) coincides with that of the modern magnetic field vector.
Matyushkin A. V., Balagansky V. V.
doaj   +1 more source