Results 21 to 30 of about 25,421 (273)

Reply to Comment by D. Jiang on “Pressure‐to‐Depth Conversion Models for Metamorphic Rocks: Derivation and Applications”

open access: yesGeochemistry, Geophysics, Geosystems, 2021
In our study (Bauville & Yamato, 2021, https://doi.org/10.1029/2020gc009280), we derived simple formulas for pressure‐to‐depth conversion that allow (or not) to take into account deviatoric stresses.
A. Bauville, P. Yamato
doaj   +1 more source

MINERALOGY OF HOST ROCKS OF THE OSINOVSKOE GOLD-QUARTZ DEPOSIT (CENTRAL URALS) [PDF]

open access: yesМинералогия, 2023
The paper describes the mineralogy of mica shales of the Osinovskoe gold deposit in the Central Urals. Our studies unraveled the role of dynamometamorphism in the transformation of primary rocks and allowed the characterization of their metasomatic ...
N.P. Safina, L.Ya. Kabanova, I.A. Blinov
doaj   +1 more source

Evolution of migmatitic granulite complexes: Implications from Lapland Granulite Belt, Part I: Metamorphic geology [PDF]

open access: yesBulletin of the Geological Society of Finland, 2006
The Palaeoproterozoic Lapland granulite belt was juxtaposed between Archaean and Proterozoic terrains in the NE part of the Fennoscandian Shield concurrently with the accretion of Svecofennian arc complexes at ~1.9 Ga.
P. Tuisku, P. Mikkola, H. Huhma
doaj   +1 more source

MARBLE DIKES IN THE OLKHON COMPOSITE TERRANE (WEST BAIKAL AREA)

open access: yesГеодинамика и тектонофизика, 2022
Linear or lens-like carbonate (marble) and carbonate-silicate bodies among gabbro and amphibolites within the Krestovsky subterrane of the Olkhon composite terrane (West Baikal Area) are identified as dikes.
E. V. Sklyarov   +2 more
doaj   +1 more source

Two generations of scapolite at Snezhnoe ruby deposit, Central Pamir

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
At Snezhnoe ruby deposit, localized in the eastern part of the tectonic zone of Central Pamir, two generations of sсapolite have been discovered by the textural and structural features.
A. K. Litvinenko   +2 more
doaj   +1 more source

Research of vitrinite and fusinite coals for predicting geological hazards in coal seams

open access: yesМінеральні ресурси України, 2020
To establish the necessity of dividing fossil coals into vitrinitic and fusinitic varieties in order to identify the hazardous properties of coal seams during mining. Methodology.
М. I. Antoshchenko   +3 more
doaj   +1 more source

Mesostructural paragenesises of the southeastern part of the Ebeta antiform (Northern Kazakhstan)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2015
Data on a geoiogical structure and evolution of mesostructural complexes of a southeast part of the Ebeta antiformhas been provided. Multistage nature of the deformations and a metamorphism of a Mamyt metamorphic complex and its frame have been ...
B. G. Golionko, O. A. Artemova
doaj   +1 more source

Study of Events and Phases in Robat-e Zengejeh Area (Southwestern Bardaskan) [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Robat-e Zengejeh rocks affected by a variety of events began from Precambrian. This research studied preserved effects of the events. Regional metamorphism is the oldest event in this rocks include schist, amphibolite and orthogneiss, that reached up to ...
M. Jamshidibadr, N. S. Faramarzi
doaj  

Reflection of sequence of geodynamic processes in geological structure of the Bug area

open access: yesГеофизический журнал, 2019
The age of formations composing granulite blocks of the Ukrainian Shield is a pro-blem for disputes. In order to ascertain the primary genesis and conditions of transduction of the Bug area rocks it is proposed to find out how was deep process realized ...
O. V. Usenko
doaj   +1 more source

87Sr/86Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

open access: yes, 2004
New calcite <sup>87</sup>Sr/<sup>86</sup>Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Fallick, A.E.   +7 more
core   +1 more source

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