Results 1 to 10 of about 61,456 (207)

Features of olivine crystallization in ordinary chondrites (Saratov meteorite): geochemistry of trace and rare earth elements

open access: yesЗаписки Горного института, 2022
The paper discusses the geochemistry of major (EPMA) and trace (SIMS) elements in olivine of porphyritic, nonporphyritic chondrules, and the matrix of equilibrated ordinary chondrite Saratov (L4).
Kristina G. Sukhanova   +2 more
doaj   +1 more source

«AIRES» SHARED RESEARCH FACILITIES (IPGG RAS, St. PETERSBURG): SCIENTIFIC EQUIPMENT, MAIN RESEARCH DIRECTIONS AND RESULTS

open access: yesГеодинамика и тектонофизика, 2022
The "AIRES" Shared Research Facilities (SRF) is a high-tech laboratory complex based on the Institute of Precambrian Geology and Geochronology RAS (IPGG RAS, St. Petersburg).
A. B. Kuznetsov   +2 more
doaj   +1 more source

EVALUATION OF THERMAL METAMORPHISM TEMPERATURE OF EQUILIBRATED ORDINARY CHONDRITES

open access: yesГеодинамика и тектонофизика, 2022
The article provides an evaluation of thermal metamorphism temperatures on chondrite parent bodies using an olivine-Сr spinel geothermometer. To calculate temperatures, the results of EPMA analysis of the major and trace elements in olivine and Cr spinel
К. G. Sukhanova   +3 more
doaj   +1 more source

Fahlbands of the Keret archipelago, White Sea: the composition of rocks and minerals, ore mineralization

open access: yesЗаписки Горного института, 2020
This paper presents a complex mineralogical and geochemical characteristic (based on SEM-EDS, ICP-MS analysis) of the fahlband rocks of the Kiv-Guba-Kartesh occurrence within the White Sea mobile belt (WSMB).
Laysan I. Salimgaraeva   +3 more
doaj   +1 more source

COMMENTS ON THE ARTICLE AUTHORED BY M.V. MINTS AND K.A. DOKUKINA – THE BELOMORIAN ECLOGITE PROVINCE (EASTERN FENNOSCANDIAN SHIELD, RUSSIA): MESO-NEOARCHEAN OR LATE PALEOPROTEROZOIC?

open access: yesГеодинамика и тектонофизика, 2021
The comments are given on the article authored by M.V. Mints and K.A. Dokukina – The Belomorian Eclogite Province (Eastern Fennoscandian Shield, Russia): Meso-Neoarchean or Late Paleoproterozoic?
S. G. Skublov   +2 more
doaj   +1 more source

Gold in biogenic apatites of the Baltic-Ladoga phosphorite basin

open access: yesЗаписки Горного института, 2022
The distribution of gold in biogenic apatites from the Ordovician deposits in the northwest of the East European Platform shows that the maximum concentration of gold in apatites is found within the Ladoga-Baltic suture zone.
Sergey B. Felitsyn, Nadezhda A. Alfimova
doaj   +1 more source

U-Pb age and trace elements composition of titanite from granites of Belokurikhinsky massif, Gorny Altai

open access: yesVestnik MGTU, 2021
As a result of isotope-geochemical study, the age data (U-Pb method, ID-TIMS) of titanite from the first phase granites of the Belokurikhinsky granite massif, Gorny Altai, were obtained for the first time. The concordant value of the titanite age of 255 ±
Skublov S. G.   +2 more
doaj   +1 more source

Neoproterozoic subduction along the Ailaoshan zone, South China : geochronological and geochemical evidence from amphibolite [PDF]

open access: yes, 2014
This study was supported by China Natural Science Foundation (41190073 and 41372198), National Basic Research Program of China (2014CB440901) and Natural Environment Research Council (grant NE/J021822/1).Lenses of amphibolites occur along the Ailaoshan ...
Cai, Yongfeng   +6 more
core   +1 more source

Global hydrogen reservoirs in basement and basins [PDF]

open access: yes, 2017
The authors are grateful to the Science and Technology Facilities Council (STFC) for funding, through Grant NE/G00322X/1. Samples were kindly contributed by K. Condie, M.J. Hole, and D. Muirhead.
Blamey, Nigel, Parnell, John
core   +1 more source

Seismic wide-angle study of accreted Proterozoic crust in southeastern Wyoming [PDF]

open access: yes, 1994
A seismic wide-angle xperiment was conducted in southeastern Wyoming, USA to investigate the seismic character of a postulated Proterozoic magmatic arc south of the suture (Cheyenne Belt) to the Archean Wyoming Province.
Gohl, Karsten, Smithson, S. B.
core   +1 more source

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