Results 151 to 160 of about 353 (180)
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AGE OF THE HANNIVKA GRANITE (MIDDLE-DNIEPER MEGABLOCK OF THE UKRAINIAN SHIELD)
Mineralogical Journal, 2022The Middle-Dnieper megablock, which is a fragment of the craton, differs from other cratons found on Earth. This is because of the large variety of granitoids (Tokiv, Mokro-Moskowka, and Demuryne complexes) in the former that were formed after the Mesoarchean TTG.
G.V. Artemenko +3 more
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Megablocks from the crystalline basement – the Lehberg outcrop, Unterwilflingen, Nördlinger Ries
Jahresbericht Und Mitteilungen Des Oberrheinischen Geologischen Vereins, 2022Lina Seybold, Stefan Holzl
exaly +2 more sources
Authors’ reply: megablocks are nice but not really necessary
Journal of Clinical PathologyMurali Varma, John Dormer
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STRUCTURAL CONTROLS ON KIMBERLITE FORMATION IN THE ANABAR MEGABLOCK
International Geology Review, 1986(1986). STRUCTURAL CONTROLS ON KIMBERLITE FORMATION IN THE ANABAR MEGABLOCK. International Geology Review: Vol. 28, No. 11, pp. 1336-1345.
A. A. Dukhovskiy +3 more
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A preliminary geoelectrical model of the Karelian megablock of the Baltic shield
Physics of the Earth and Planetary Interiors, 1983Abstract Three groups of electromagnetic data have been considered in order to construct a preliminary geoelectrical depth model of the old basement of the Baltic shield: (i) audiomagnetotelluric data in the period range 1 3700 − 1 8 s; (ii) magnetotelluric data in the period range 25–1000 s; and (iii) global magnetovariation-sounding ...
P. Kaikkonen +5 more
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Precambrian Research, 2017
Abstract The present study, based on combined geophysical, geochronological and isotopic data identifies a cratonic block which we call the Western Chihuahua-Mesa Central megablock (WCMB) in northern Mexico. New Bouguer and isostatic gravity anomaly maps revealed a conspicuously distinct, spatially-extensive gravity minima over a region extending ...
Philip C. Goodell +3 more
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Abstract The present study, based on combined geophysical, geochronological and isotopic data identifies a cratonic block which we call the Western Chihuahua-Mesa Central megablock (WCMB) in northern Mexico. New Bouguer and isostatic gravity anomaly maps revealed a conspicuously distinct, spatially-extensive gravity minima over a region extending ...
Philip C. Goodell +3 more
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Emplacement of the megablock zone in the Chicxulub crater, Yucatan, Mexico
2010Strontium isotope stratigraphy applied to the Cretaceous sequence present in the Yaxcopoil core drilled in 2002 in the Chicxulub crater (Yucatan) demonstrates that the megablocks preserved their original pre-impact orientation. No overturned unit has been identified at the level of resolution, setting constraints on the emplacement mechanisms taking ...
Belza, Joke +2 more
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Modelling the Hydraulic Injection Fracture Response in Layered Media for Megablock Experiments
58th U.S. Rock Mechanics/Geomechanics SymposiumABSTRACT: Finite-discrete element method (FDEM) models were employed to explore the fracturing response of Montney Formation outcrop samples to hydraulic fracturing. Variability envelopes were employed to characterize its behaviour under different compressive loading orientations with respect to the layering in the ...
E. Magsipoc, G. Grasselli
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Search for Fresh Water in the Zone of Joining the Priazov Megablock with the Donbas
17th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, 2023P. Pigulevskiy, V. Svistun
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