Results 161 to 170 of about 901 (179)

A preliminary geoelectrical model of the Karelian megablock of the Baltic shield

Physics of the Earth and Planetary Interiors, 1983
Abstract 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, L.L. Vanyan, S.E. Hjelt, A.P. Shilovsky, K. Pajunpää, P.P. Shilovsky   +5 more
openaire   +1 more source

Modelling the Hydraulic Injection Fracture Response in Layered Media for Megablock Experiments

58th U.S. Rock Mechanics/Geomechanics Symposium
ABSTRACT: 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
openaire   +1 more source

Emplacement of the megablock zone in the Chicxulub crater, Yucatan, Mexico

2010
Strontium 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, Goderis, Steven, Claeys, Philippe   +2 more
openaire   +1 more source

AGE OF GRANITES OF THE KROPYVNYTSKO-BOBRYNETSKY MASSIF (INGUL MEGABLOCK OF THE UKRAINIAN SHIELD)

Mineralogical Journal
The uranium-lead isotope systems of accessory monazites from porphyry-like and pegmatoid granites of the Kropyvnytsko-Bobrynets massif (Ingul megablock), which were opened by the Zhyvanivka quarry, located on the left bank of the Sugokleya River, southwest of the village of Zhyvanivka, were studied. For isotopic dating, multigrain monazite samples were
O.V. Kovtun, L.M. Stepanyuk, O.B. Vysotsky, A.N. Baran, T.I. Dovbush   +4 more
openaire   +1 more source

Megablocks from the crystalline basement – the Lehberg outcrop, Unterwilflingen, Nördlinger Ries

Jahresberichte und Mitteilungen des Oberrheinischen Geologischen Vereins, 2022
Lina Seybold, Stefan Hölzl, Claudia Trepmann, Valerie Ernst, Lisa Bahmer   +4 more
openaire   +1 more source

Megablocks

2011
Cliff Frohlich, Matthew J. Hornbach, Frederick W. Taylor   +2 more
openaire   +1 more source

Precambrian paleovolcanoes of the Middle Dnieper megablock (Ukrainian shield)

Geology and Mineralogy Bulletin of Kryvyi Rih National University, 2018
V.V. Manyuk, V.V. Sukach
openaire   +1 more source

Study of deep tectonics the slopes of Serednoprydniprovskyi megablock

Proceedings, 2010
S. O. Slobodyanyk, P. G. Pigulevsky
openaire   +1 more source

Monazitometry of the Ukrainian Shield (Volyn and Dniester-Bug megablocks)

he monograph presents the results of uranium-lead isotope dating of multigrain monazite samples from crystalline rocks (granitoids, gneisses, amphibolites) of the Volyn and Dniester-Bug megablocks of the Ukrainian Shield. The mineralogy of monazite and the features of the uranium-lead isotopic system of this mineral are highlighted.
openaire   +1 more source

Pentair X-Flow introduces Megablock in Singapore

Filtration + Separation, 2011
openaire   +1 more source