000	02095nam  2200289za 4500
001	9.581534
003	CaOODSP
005	20230131161133
007	cr |||||||||||
008	150406s2014    onc|||||o    f|0| 0 eng d
040	|aCaOODSP|beng
043	|an-cn---
086	1 |aM183-2/7628E-PDF
100	1 |aHamblin, Anthony P.
245	14|aThe hydrogeological characteristics of the Upper Cretaceous De Courcy Formation (Nanaimo Group), from a subsurface core, groundwater observation well, Cedar, British Columbia |h[electronic resource] / |c[by] A.P. Hambin and T. McCartney.
260	|aOttawa : |bNatural Resources Canada, |c2014.
300	|a[30] p.|bcoloured figs., figs., graphs, photos.
490	1 |aOpen file (Geological Survey of Canada) ; |v7628
504	|aInlcudes bibliographic references.
520	|aAs part of the investigation of the groundwater potential of the Nanaimo Group bedrock units, a drill core 112.5 m long was obtained from an Observation Well near the village of Cedar on Vancouver Island. The entire length of the core comprises the sandstone-dominated (potential aquifer zone) De Courcy Formation, and is characterized by thick bedded, medium to coarse grained sandstone (65% of core) with interbedded units of sandy siltstone. Sandstones have decent porosity and permeability and may form subsurface aquifers, whereas siltstones have lesser porosity and permeability and may form intervening barriers to groundwater flow. More importantly, the characteristics displayed in this core provide analogies for deeper and more widespread potential aquifer zones within the Nanaimo Group (Comox, Extension, Protection formations), for which we have no subsurface data.
692	07|2gccst|aGroundwater
692	07|2gccst|aSedimentary rocks
692	07|2gccst|aHydrogeology
710	1 |aCanada. |bNatural Resources Canada.
710	2 |aGeological Survey of Canada.
830	#0|aOpen file (Geological Survey of Canada)|v7628|w(CaOODSP)9.506878
856	40|qPDF|s1.09 MB|uhttps://publications.gc.ca/collections/collection_2015/rncan-nrcan/M183-2-7628-eng.pdf