Results 61 to 70 of about 14,109 (220)

Petrography descriptions and U-Pb zircon datasets from the Archean Pavas Block, Uruguay's Precambrian [PDF]

open access: yes, 2021
Petrography and U-Pb zircon analyses of the granitic – gneisses and migmatites of the Pavas Block, a segment composed of pre-Neoproterozoic basement rocks located westward of the Neoproterozoic Dom Feliciano ...
Masquelin, H (via Mendeley Data)
core   +1 more source

PALEOZOIC INTRAPLATE MAGMATISM OF THE EAST EUROPEAN PLATFORM: COMPARATIVE ANALYSIS OF THE PRIPYAT-DNIEPER-DONETS RIFT ZONE AND THE KOLA-ARKHANGELSK PROVINCE

open access: yesГеодинамика и тектонофизика
This paper presents a comparative analysis of geochronological, geochemical, Sr-Nd isotopic data and geodynamic conditions for the Devonian magmatism of the East European Platform, using as an example the Pripyat-Dnieper-Donets rift zone in the south of ...
E. V. Yutkina   +5 more
doaj   +1 more source

Learning Across the Divide: Understanding Knowledge Sharing Through Petrographic Analysis on Ceramics From the Rhine‐Meuse Delta During the Middle to Late Neolithic Transition (3400–2200 bce)

open access: yesArchaeometry, EarlyView.
ABSTRACT Vlaardingen (VL) communities on the Dutch West coast (3400–2200 bce) are part of a unique, long‐term continuity in the European Neolithic. Despite large‐scale changes in European populations during the Neolithic, the genomic diversity and cultural practices of VL communities can be retraced to the Mesolithic.
Jisca de Bruin   +3 more
wiley   +1 more source

Co AND Ni MINERALS IN ORES OF THE MIKHEEVSKOE PORPHYRY Cu DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия
Co and Ni minerals are described in ores of the Mikheevskoe porphyry copper deposit (South Urals, Russia). Minerals of the cobaltite–gersdorfite series (CoAsS–NiAsS), violarite (FeNi2S4), millerite (NiS), pentlandite (Ni5.5Fe3.4)8.9S8.0 and melonite ...
O.Yu. Plotinskaya, E.V. Kovalchuk
doaj   +1 more source

Synthesis and crystal structure of ABW-type SrFe1.40V0.60O4

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
Single crystals of SrFe1.40V0.60O4, strontium tetraoxidodi[ferrate(III)/vanadate(III)], have been obtained as a side product in the course of sinter experiments aimed at the synthesis of double perovskites in the system SrO–Fe2O3–V2O5.
Thomas Gstir   +3 more
doaj   +1 more source

Investigating the Dietary, Economic, and Social Practices of a Neolithic Funnel Beaker Community in Wanna, Germany, Through Raw Material and Organic Residue Analyses of Pottery

open access: yesArchaeometry, EarlyView.
ABSTRACT This study details the analysis of an assemblage of Funnel Beaker pottery from Wanna in Northern Germany investigated using petrographic, geochemical, and organic residue analyses. The analyses revealed specialized production of pottery vessels for funerary contexts, but that domestic and funerary pottery were used intensively to process ...
I. L. Wiltshire   +4 more
wiley   +1 more source

THE UNIQUE Y-ZIRCON FROM THE ICHET′YU POLYMINERAL OCCURRENCE (CENTRAL TIMAN) [PDF]

open access: yesМинералогия, 2015
The morphology, composition, color CL, age, and the source of zircon of the Ichet′yu occurrence are studied. The U-Pb age of zircons from the occurrence widely varies from 2247 and 1478 Ma with a difference of 700 Ma within the Paleo-Mezoproterozoic. The
A.B. Makeev   +4 more
doaj  

Gold and other impurity elements in pyrite from the Berezovskoe deposit in the Middle Urals

open access: yesЛитосфера, 2019
Research subject. In this work, we investigated the crystals of pyrite, one of the key gold-bearing minerals, from the Berezovskoe (the Middle Urals) deposit using modern research approaches.Materials and methods.
N. V. Sidorova   +3 more
doaj   +1 more source

New synthetic [LREE (LREE = La, Ce, Pr, Sm), Pb]-phosphate phases

open access: yesMineralogia, 2023
Search for inexpensive and efficient methods of critical raw materials recovery is of great importance across the world due to growing demand for green technologies.
Staszel Kacper   +7 more
doaj   +1 more source

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

open access: yesArchaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello   +5 more
wiley   +1 more source

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