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SPE 056

Catalogue of Selected Regional Gravity and Magnetic Maps of Northern Alberta

A practical tool for identifying brittle basement faults in northern Alberta was created by detailed processing of public-domain gravity and magnetic data to highlight subtle linear features. Lineaments can be gradient zones, alignments of separate ... Show Abstract

Lyatsky, H.V.  Pana, D.I.  2003-08-01

SPE 054

An Investigation of Geological Applications of Archival Lightning Strike Data in the Province of Alberta (North of Latitude 54° North)

Lightning detection instruments were initially deployed to protect aerospace launch vehicles and solid-state electronics. [...]because of the large area involved in the study, interpretation of possible lightning strike linears was focused on the ... Show Abstract

Robertson, K.  2003-11-01

SPE 071

Preliminary Release of Geochemical, Mineralogical and Kimberlite Indicator Mineral Electron Microprobe Data from Silts, Heavy Mineral Concentrates and Waters from a National Geochemical Reconnaissance Stream Sediment and Water Survey

Preliminary Release of Geochemical, Mineralogical and Kimberlite Indicator Mineral Electron Microprobe Data from Silts, Heavy Mineral Concentrates and Waters from a National Geochemical Reconnaissance Stream Sediment and Water Survey A regional ... Show Abstract

McCurdy, M.W.  Prior, G.J.  Friske, P.W.B.  McNeil, R.J.  Weiss, J.A.  Day, S.J.A.  2004-08-01

GEO 2003-37

Radiogenic Isotope Geochemistry of Kimberlitic Rocks in Northern Alberta: Constraints for Source of Magmatism and Emplacement Age

Abstract: Kimberlitic rocks from the K4 and K6, and Legend, Phoenix and Kendu pipes from the Buffalo Head Hills and Birch Mountains fields, respectively, in the northern Alberta kimberlite province (NAKP) were selected for radiogenic isotopic analysis, including Rb-Sr, Sm-Nd and Pb-Pb on whole rock, U-Pb on perovskite and rutile, Sr on perovskite and Rb-Sr on mica (phlogopite).Good correlations between whole-rock εNd, 87Sr/86Sr and Pb-isotopes, in conjunction with enriched incompatible elements and low contamination index (SiO2 + Al2O3 + Na2O/MgO + K2O), suggest the isotopic content of the NAKP kimberlitic rocks can be used to make relevant observations on the mantle source characteristics in northern Alberta. Thus, the difference in isotopic character between the northern Alberta pipes must reflect chemical differences in their mantle source rocks, which may, for example, be derived from differing sources in a heterogeneous mantle or by the mixing of two or more components of vastly differing isotopic characteristics.The K6 pipe (Buffalo Head Hills) is representative of melts derived from a depleted mantle and plot in the field for South African Group I kimberlites. The Phoenix and Legend pipes (Birch Mountains) have similar εNd to K6, but more radiogenic 87Sr/86Sr, possibly related to their evolved nature. The K4 (Buffalo Head Hills) and Kendu (Birch Mountains) pipes contain lower εNd, higher 87Sr/86Sr, and less radiogenic Pb isotopic ratios, and therefore contain: 1) at least some contribution from an old source region enriched in Rb/Sr and light rare-earth element (LREE; low U/Pb and Sm/Nd) material, 2) crustal contamination, or 3) both.A compilation of known biostratigraphic and isotopic dates show the emplacement age of the NAKP is Late Cretaceous (Coniacian to Maastrichtian). The isotopic results for mineral separates analyzed in this study provided a robust emplacement age for the Phoenix pipe, 77.6±1.1 Ma by U-Pb perovskite. This date is older than previously reported ages of 70.3±1.6 and 70.9±0.4 Ma by U-Pb perovskite and Rb-Sr phlogopite, respectively (Aravanis, 1999). The variance in ages is possibly the result of separate eruption events, which have subsequently mixed in the crater environment. Place Keywords 83n 83o 83p 84a 84b 84c 84f 84g 84h alberta birch mountains buffalo head hills canada Theme Keywords digital data geochemistry geology kimberlite magmatism petrogenesis radiogenic

Eccles, D.R.  Heaman, L.M.  Creaser, R.A.  2003-11-01

GEO 2000-04

Quaternary Geology Northern Alberta: Information Sources and Implications for Diamond Exploration

Quaternary Geology Northern Alberta: Information Sources and Implications for Diamond Exploration Information is provided on the physiography, bedrock topography, drift thickness, Quaternary stratigraphy, surficial geology, features which differs ... Show Abstract

Fenton, M.M.  Pawlowicz, J.G.  2000-09-01

ESR 2001-05

Major- and Trace- Element Geochemistry of Kimberlitic Rocks in Northern Alberta

Samples from the Mountain Lake pipes and the Buffalo Head Hills and Birch Mountains fields contain low SiO2 and Na2O/K2O, with Cr, Ni, MgO, rare-earth elements (REE), Zr and Nb concentrations elevated relative to their abundance in common crustal ... Show Abstract

Eccles, D.R.  Luth, R.W.  2003-05-01

ESR 2002-07

Petrographic Characteristics of Selected Kimberlitic Rocks in Northern Alberta

Five kimberlite pipes in the northern Alberta kimberlite province were selected for detailed petrography: K4 and K6 from the Buffalo Head Hills and Legend, Phoenix and Kendu from the Birch Mountains. The main objective is to complement and expand ... Show Abstract

Eccles, D.R.  2004-02-01

DIG 2009-0016

Sandstone-Hosted Uranium Potential of Alberta: Study of Oil and Gas Well Logs (tabular data, tab delimited format)

Sandstone-Hosted Uranium Potential of Alberta: Study of Oil and Gas Well Logs (tabular data, tab delimited format) An Alberta Geological Survey database of oil and gas well logs were queried to identify wells with gamma values greater than 300 API ... Show Abstract

Matveeva, T.M.  Kafle, B.  2010-02-16

DIG 2009-0001

Geochemical Data from the Bad Heart Formation, Northwestern Alberta (tabular data, tab delimited format)

Geochemical Data from the Bad Heart Formation, Northwestern Alberta (tabular data, tab delimited format) The dataset accompanies Alberta Geological Survey Open File Report 2009-01. The dataset contains the results of geochemical analyses of rock ... Show Abstract

Kafle, B.  2009-04-16