Results 61 to 70 of about 59,536 (124)

Temperature and pore pressure effects on the shear strength of granite in the brittle-plastic transition regime [PDF]

open access: yes, 2001
Currently published lithospheric strength profiles lack constraints from experimental data for shear failure of typical crustal materials in the brittle-plastic transition regime in wet environments.
Mochizuki, H   +3 more
core  

NEW METALLOGENIC ASPECTS OF SKARNS FROM THE PITKARANTA ORE PROVINCE

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
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

Granite stone

open access: yes, 2011
Ensino Fundamental::Séries Iniciais::GeografiaEnsino Fundamental Inicial::Meio AmbienteThe image shows a large granite stone and gravel deposits in the middle of floodplain.
U.S. Geological Survey
core   +2 more sources

An investigation into the controls of granite plutonism in the Sierra da Freita region, Northern Portugal [PDF]

open access: yes, 2012
The Serra da Freita region of north central Portugal was chosen for study as it displays the complex relationships between regional structure, plutonism, regional and contact metamorphism typical of this part of Iberia.
Reavy, Reginald John
core   +2 more sources

Natural stone assessment with ground penetrating radar [PDF]

open access: yesEstonian Journal of Earth Sciences, 2008
The usability of ground penetrating radar in quality assessment of natural stone deposits was tested in porphyritic granite and soapstone. The main interest was to evaluate how the soundness, fracturing, and physical defects can be studied with the ...
Luodes, Hannu
doaj  

Problems of Precambrian paleomagnetism on the territory of Ukraine

open access: yesГеофизический журнал, 2018
Some problems of paleomagnetic research of the Precambrian rocks of Ukraine are considered. The results of paleomagnetic researches of the Proterozoic rocks of the Ukrainian Shield, Ediacaran traps of Volyn and sedimentary rocks of Podolia were analyzed.
V. Bakhmutov, I. Polyachenko, S. Cherkes
doaj   +1 more source

Melts and fluids evolution in the process of crust and mantle formation in Paleo-Proterozoic (2,2—1,75 Ga ago). Stratigraphy and magnetic activity

open access: yesГеофизический журнал, 2017
Stratigraphy of metamorphic Precambrian complexes related to Paleo-Proterozoic is controversial. An additional sign permitting to correlate strata may be their material composition because in the Precambrian composition of deep fluids changed regularly.
O. V. Usenko
doaj   +1 more source

Microorganisms in Superficial Deposits on the Stone Monuments in Saint Petersburg. [PDF]

open access: yesMicroorganisms, 2022
Sazanova KV   +5 more
europepmc   +1 more source

MESO-NEOPROTEROZOIC GRENVILLE-SVECONORWEGIAN INTRACONTINENTAL OROGEN: HISTORY, TECTONICS, GEODYNAMICS

open access: yesГеодинамика и тектонофизика, 2017
The objective of this paper is to represent the main features inherent to Grenville-Sveconorwegian Orogen (GSNO) and to propose a model of tectonic and geodynamic evolution of this orogen based on the results of research concerning similar Precambrian ...
M. V. Mints
doaj   +1 more source

Home - About - Disclaimer - Privacy