| Title | Geophysical, geotechnical, geochemical, and mineralogical data sets collected in Champlain Sea sediments in the Municipality of Pontiac, Québec |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Crow, H L ; Alpay,
S; Hinton, M J; Knight, R D; Oldenborger, G A; Percival, J B; Pugin, A J -M; Pelchat, P |
| Source | Geological Survey of Canada, Open File 7881, 2017, 51 pages, https://doi.org/10.4095/301664  Open Access |
| Year | 2017 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is related to Mineralogical properties of
Champlain Sea sediments and their effects on borehole geophysical logs,
western Quebec |
| File format | readme
|
| File format | pdf; xls; xlsx; txt; jpg; las; docx |
| Province | Quebec |
| NTS | 31F/08; 31F/09; 31G/05; 31G/12 |
| Area | Breckenridge; Breckenridge Creek; Eardley Escarpment; Pontiac |
| Lat/Long WENS | -76.5000 -75.5000 45.7500 45.2500 |
| Subjects | surficial geology/geomorphology; geophysics; engineering geology; geochemistry; mineralogy; paleontology; marine clays; sensitive clays; silts; marine sediments; landslides; earthquakes; sediment
properties; geophysical surveys; seismic interpretations; seismic surveys; seismic reflection surveys; seismic velocities; resistivity surveys, ground; electrical resistivity; geophysical logging; magnetic susceptibility; core samples; mineralogical
analyses; x-ray diffraction analyses; scanning electron microscope analyses; x-ray fluorescence analyses; pore water samples; water geochemistry; bedrock geology; topography; basin analysis; grain size analyses; atterberg limits; conductivity;
isotopic studies; hydrogen isotopes; oxygen isotopes; fossils; radiometric dating; radiocarbon dating; depositional environment; ecology; seismology; seismographs; Champlain Sea Sediments; Molluscs; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; tables; plots; geoscientific sketch maps; photographs; profiles; geophysical logs; lithologic sections; cross-sections; graphs; spectra; seismic profiles; photomicrographs |
| Program | Public Safety Geoscience Assessing Earthquake Geohazards |
| Released | 2017 06 08 |
| Summary | (Plain Language Summary, not published)
To characterize the geotechnical properties of sensitive glaciomarine silty clay deposits in the Ottawa Valley, Canada, a series of geophysical surveys
were conducted over a buried bedrock basin, 2 km2 and up to 90 m deep, near Gatineau, Quebec. The sub-surface morphology of the bedrock basin was mapped from 193 measurements of Horizontal-to-Vertical spectral ratio (HVSR), and two high resolution
shear wave seismic profiles were acquired to delineate 2D sedimentary architecture. Two boreholes were drilled near the centre of the basin to collect samples for geotechnical testing, and to install a 3in PVC casing for geophysical logging.
Downhole logs and soil sample tests were used in the interpretation of five electrical resistivity profiles, which identified zones where the geotechnical sensitivity of the soils was locally elevated. Lab tests of the samples also allowed for the
study of pore water chemistry and sediment mineralogy. The results of these studies provide input parameters for the modeling of seismically-induced ground motion response within small-scale basins. |
| GEOSCAN ID | 301664 |
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