Results 21 to 30 of about 340 (264)
Analysis of blasting impacts at the open pit Manastiriste near Topola on the monastery complex [PDF]
Mining and Metallurgy Engineering Bor, 2016 This paper discusses the problems associated with the negative effects that accompany blasting operations, and the certain conclusions were derived. One of the negative effects of blasting operations is the phenomenon of seismic action and its effects on
Bajić Sanja +3 more
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Bathymetry and bed conditions of Lago Subglacial CECs, West Antarctica
Journal of Glaciology, 2023 Although over 600 Antarctic subglacial lakes have been identified using radar and satellite observations, the bathymetry and bed properties, which are key to understanding conditions within the lake, have been determined in very few localities.
A. M. Brisbourne +6 more
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Characterising ice slabs in firn using seismic full waveform inversion, a sensitivity study
Journal of Glaciology, 2023 The density structure of firn has implications for hydrological and climate modelling, and ice-shelf stability. The structure of firn can be evaluated from depth models of seismic velocity, widely obtained with Herglotz–Wiechert inversion (HWI), an ...
Emma Pearce +7 more
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Seismic observations of a complex firn structure across the Amery Ice Shelf, East Antarctica
Journal of Glaciology, 2021 We use seismic refraction data to investigate the firn structure across a suture zone on the Amery Ice Shelf, East Antarctica, and the possible role of glacier dynamics in firn evolution.
Hannes Hollmann +4 more
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Seismicity and Principal Seismic Effects [PDF]
Geophysical Journal International, 1970 Summary A statistical method is given for estimating the total effect of earthquakes over a given period. The effect may be measured by return-time, shaking or damage, and may be exerted at a point (e.g. building), on a linear object (e.g. road), or on an area. For each type of effect there are given formulae for the statistical distribution,
G. M. Molchan +2 more
openaire +1 more source
Oil & Gas Science and Technology, 2020 In an Enhanced Oil Recovery (EOR) process, one of the main difficulties is to quickly evaluate if the injected chemical products actually improve oil recovery in the reservoir.
Dubos-Sallée Noalwenn +5 more
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Annals of Glaciology, 2019 We compared elastic moduli in polar firn derived from diving wave refraction seismic velocity analysis, firn-core density measurements and microstructure modelling based on firn-core data.
Rebecca Schlegel +8 more
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Active seismic studies in valley glacier settings: strategies and limitations
Journal of Glaciology, 2018 Subglacial tills play an important role in glacier dynamics but are difficult to characterize in situ. Amplitude Variation with Angle (AVA) analysis of seismic reflection data can distinguish between stiff tills and deformable tills.
JENNA M. ZECHMANN +5 more
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P-wave velocity changes in freezing hard low-porosity rocks: a laboratory-based time-average model [PDF]
The Cryosphere, 2012 P-wave refraction seismics is a key method in permafrost research but its applicability to low-porosity rocks, which constitute alpine rock walls, has been denied in prior studies.
D. Draebing, M. Krautblatter
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Seismic Prediction While Drilling (SPWD): Looking Ahead of the Drill Bit by Application of Phased Array Technology [PDF]
Scientific Drilling, 2010 Geophysical exploration is indispensable for planning deep drilling. Usually 2D- or 3D-seismics investigations are applied and, depending on the resulting geologic model for the underground, the drill site and drilling path are determined.
Marco Groh +7 more
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