Current Research Geological Survey Ottawa
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| Author | : O. Salad Hersi |
| Publisher | : Natural Resources Canada |
| Total Pages | : 10 |
| Release | : 2000 |
| Genre | : |
| ISBN | : 0660180464 |
Cores drilled from a quarry north of Montreal show a distinct lithostratigraphic unit occurring below the Upper Cambrian Cairnside Formation. The unit was previously considered as the Covey Hill Formation of the Lower Potsdam Group. This paper describes the regional geological setting, lithology, and depositional environment of this unit. Evidence for considering the unit as part of the Rivière Aux Outardes Member (Clark, 1966) is presented. Correlations with other stratigraphic units in southern Quebec are discussed along with evidence for a possible Cambrian carbonate platform in the region. Two scenarios of possible regional depositional episodes are also hypothesized.
| Author | : |
| Publisher | : Natural Resources Canada |
| Total Pages | : 13 |
| Release | : |
| Genre | : |
| ISBN | : 0662436768 |
| Author | : O. Salad Hersi |
| Publisher | : Natural Resources Canada |
| Total Pages | : 10 |
| Release | : 2000 |
| Genre | : Sedimentary rocks |
| ISBN | : 0660180472 |
This paper documents some aspects of the lithostratigraphic and sedimentological attributes of the Upper Cambrian Cairnside Formation, as observed in drill core and in surface exposures in a quarry near Covey Hill, southern Quebec. The paper begins with a review of previous research and stratigraphic terminology, then describes the lithology and depositional environment of the uppermost beds of the underlying Covey Hill Formation. The two units of the Cairnside Formation are then described and correlations with other localities are discussed. The final section briefly describes the Cairnside Formation depositional environment.
| Author | : |
| Publisher | : Natural Resources Canada |
| Total Pages | : 18 |
| Release | : |
| Genre | : |
| ISBN | : 066248746X |
| Author | : |
| Publisher | : Natural Resources Canada |
| Total Pages | : 18 |
| Release | : 2010 |
| Genre | : Geothermal resources |
| ISBN | : 110014563X |
| Author | : R. McNeely |
| Publisher | : Natural Resources Canada |
| Total Pages | : 156 |
| Release | : 2002 |
| Genre | : Carbon |
| ISBN | : 0662438116 |
| Author | : |
| Publisher | : |
| Total Pages | : 320 |
| Release | : 1994 |
| Genre | : Geology |
| ISBN | : |
| Author | : L. C. Struik |
| Publisher | : Natural Resources Canada |
| Total Pages | : 10 |
| Release | : 2000 |
| Genre | : |
| ISBN | : 0660180022 |
The final year of the Nechako NATMAP project to study the geology of central British Columbia was used to research information collected in the field & laboratory, and to compile & document the study results. This article includes a review of upcoming publications & other products, by type of product: maps, journal articles, conference presentations, and computer products, as well as ongoing research on petrology, palaeontology, terrane characterization, tectonics & structure, and Quaternary geology.
| Author | : S. Connell |
| Publisher | : Natural Resources Canada |
| Total Pages | : 8 |
| Release | : 2000 |
| Genre | : Igneous rocks |
| ISBN | : 0660182173 |
Presents & discusses findings of a study to determine whether differences in petrophysical characteristics previously observed between rocks from the Giant and Con mines were associated with the presence of soluble mineral phases in the rocks. The study involved monitoring the resistivity of water used to immerse samples from the two mines (basalt and sericite schist), over a period of 340 hours, after vacuum saturation. The results show the differences between the resistivity-time curves of the water in which the samples were immersed. Suggestions for further studies are presented in the conclusion.
| Author | : T. J. Katsube |
| Publisher | : Natural Resources Canada |
| Total Pages | : 11 |
| Release | : 2000 |
| Genre | : |
| ISBN | : 0660182203 |
This paper presents a determination of the evolution characteristics of a set of shale pore-structure components (storage porosity, connecting porosity, flow path size, and flow path density) with compaction. The pore-structure component data are derived from bulk petrophysical data (permeability, porosity, and formation factor as a function of increased pressure) reported for seven shale & mudstone samples. Basic pore-structure models and theory are also presented.
