Results 81 to 90 of about 5,856 (171)

Effect of flood basalt stratigraphy on the phase of seismic waveforms recorded offshore Faroe Islands [PDF]

open access: yes, 2015
The generation of short-period multiples between highly heterogeneous layers of basalt flows can strongly alter transmitted seismic wavefields. These layers filter and modify penetrating waves, producing apparent attenuation and phase changes in the ...
Christie, PAF, Schuler, J, White, RS
core   +3 more sources

Research progress on transparent geological guarantee technology and equipment for intelligent coal mines

open access: yesMeitan kexue jishu
Geological assurance technology constitutes a fundamental basis for achieving safe, efficient, and environmentally sustainable coal mining, and serves as a critical pillar supporting the intelligent development of coal mines.
Zaibin LIU   +8 more
doaj   +1 more source

Development of tomographic systems for mining, mineral exploration and environmental purposes [PDF]

open access: yes, 1999
A research project was carried out to develop and test a prototype seismic tomographic system suitable for use in the exploration, mining and civil engineering industries.
Ruíz García, Casilda
core   +1 more source

Transparent exploration technology for hidden disaster-causing factors of geological structure:taking Tunbao Coal Mine in Xinjiang as an example

open access: yesMeitan kexue jishu
Hidden disaster-causing factors in coal mines are key geological factors that restrict the safety, high efficiency, green and intelligent mining, and transparent geology is an important technical means to realize the detection of hidden disaster-causing ...
Haijun WANG   +7 more
doaj   +1 more source

Transparent exploration method for hidden small geological structure based on acoustic reflection imaging of horizontal boreholes

open access: yesInternational Journal of Coal Science & Technology
The geological conditions of deep mines are highly complex, with coal and gas outbursts occurring frequently. Among the contributing factors, small geological structures are the most likely to induce such gas outbursts.
Hongyang Xu   +8 more
doaj   +1 more source

Impact of concealed karst caves on airport surface stability and treatment techniques

open access: yesCarsologica Sinica
If an airport is built in a karst area, a concealed karst cave will pose a challenge to the airport construction because of its concealment. The adverse geological effects in the site area of the third phase expansion project of Guangzhou Baiyun ...
Qian YU   +4 more
doaj   +1 more source

Stratabound arsenic and vein antimony mineralisation in Silurian greywackes at Glendinning, south Scotland [PDF]

open access: yes, 1983
Stratiform and disseminated pyrite-arsenopyrite concentrations are overprinted by fracturecontrolled polymetallic mineralisation including stibnite through at least tens of metres of Silurian sediments at Glendinning, near Langholm.
Gallagher, M.J.   +10 more
core  

Geophysical and geochemical investigations over the Long Rake, Haddon Fields, Derbyshire [PDF]

open access: yes, 1982
Geophysical and geochemical investigations were undertaken over the Long Rake at Haddon Fields, Derbyshire in order to establish methods, or combinations of methods, showing the best response to the mineralisation.
Brown, M.J., Ogilvy, R.D.
core  

The seismic response to Faroe basalts from integrated borehole and wide-angle seismic data [PDF]

open access: yes, 2006
We study the seismic response of layered basalts in the Faroe Islands using borehole data and\ud vertical seismic profiles from the Vestmanna borehole, combined with reflection and wideangle\ud seismic data recorded into arrays of both borehole and land ...
2006, SeiFaBa   +5 more
core  

ESTIMATION OF AQUIFER TRANSMISSIVITY FROM GEO-PHYSICAL DATA. A CASE STUDY OF COVENANT UNIVERSITY AND ENVIRONS, SOUTHWESTERN NIGERIA [PDF]

open access: yes, 2016
The combination of geoelectric resistivity layer and thickness in the Da-zarrouk parameters (such as longitudinal conductance and transverse resistance) has been proved to be useful in the evaluation of aquifers transmissivities around Covenant ...
Adewoyin, O.O   +4 more
core  

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