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008250722t19991999oncab   ob   f001 0 eng d
020 |a0660177471 |q(print)
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn---
0861 |aM44-1999/6E-PDF|zM44-1999/6E
24500|aRadiogenic age and isotopic studies : |breport 12.
264 1|a[Ottawa] : |bNatural Resources Canada = Ressources naturelles Canada, |c1999.
264 4|c©1999
300 |a1 online resource (65 pages) : |billustrations, maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aGeological Survey of Canada current research ; |v1999-F
500 |aDigitized edition from print [produced by Natural Resources Canada].
504 |aIncludes bibliographical references and index.
5050 |aA practical image analysis technique for estimating the weight of abraded mineral fractions used in U-Pb age dating / W. Matthews and W.J. Davis -- Rapid extraction of Sr and Pb by ion-specific chromatography for thermal ionization mass spectrometry analysis / R.J. Theriault and W.J. Davis -- Characterization of the chemical composition and ⁴⁰Ar-³⁹ Ar systematics of intralaboratory standard MAC-83 biotite / H.A. Sandeman, D.A. Archibald, J.W. Grant, M.E. Villeneuve, and F.D. Ford -- Calibration of a Neogene magnetostratigraphy by ⁴⁰Ar-³⁹ Ar geochronology: the foreland basin strata of northern Mendoza Province, Argentina / M.V. Irigoyen, M.E. Villeneuve, and F. Quigg -- Preliminary geochemical and Nd isotopic investigations of Archean volcanic and volcaniclastic rocks of the Yathkyed greenstone belt, Kivalliq region, Northwest Territories / H.A. Sandeman, K. MacLachlan, and C. Relf -- Geochemical and Sm-Nd isotopic study of Paleoproterozoic basaltic and gabbroic rocks of the Hurwitz Group, Kaminak Lake area, Kivalliq region, Northwest Territories / C.J. Hemmingway and H.A. Sandeman -- Other publications containing age and isotopic data generated in the GSC Geochronology Laboratory.
520 |a"Radiogenic Age and Isotopic Studies is an annual report on recently obtained radiometric age and tracer isotope data generated by the Geochronology Subdivision at the Geological Survey of Canada. Report 12 consists of six papers on various geoscience research topics within the fields of U-Pb and ⁴⁰Ar-³⁹ Ar geochronology as well as Sm-Nd isotopic tracer studies. Readers are reminded that the contributions often contain provisional results and interpretations of ongoing research, or consist of completed studies of limited scope. Typically, articles of greater depth and magnitude are published in external journals. A list of such recent works as well as other publications that report data from the GSC Geochronology Laboratory is provided at the end of this volume. Two open file geochronogical compilations on Archean rocks of the Canadian Shield are also listed. …"--Introduction.
546 |aIncludes introductions and abstracts in English and French.
650 0|aRadioactive dating|zCanada.
650 0|aGeological time|zCanada.
650 0|aIsotope geology|zCanada.
650 0|aRadioactive dating.
650 0|aGeological time.
650 0|aIsotope geology.
650 6|aDatation radioactive|zCanada.
650 6|aGéochronologie|zCanada.
650 6|aGéochimie isotopique|zCanada.
650 6|aDatation radioactive.
650 6|aGéochronologie.
650 6|aGéochimie isotopique.
7102 |aGeological Survey of Canada, |eissuing body.
7760#|tRadiogenic age and isotopic studies: report 12 |w(CaOODSP)9.614772
830#0|aCurrent research (Geological Survey of Canada)|v1999-F.|w(CaOODSP)9.506236
85640|qPDF|s16.40 MB|uhttps://publications.gc.ca/collections/collection_2025/rncan-nrcan/M44-1999-6-eng.pdf