000 02246nam  2200361za 4500
0019.835844
003CaOODSP
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008170426s1979    oncad||#ot   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|beng|bfre
043 |an-cn-nt
0861 |aM74-3/79-16E-PDF
1001 |aMichel, F.
24510|aLaboratory and field studies to investigate isotope effects occurring during the formation of permafrost |h[electronic resource] / |cF. Michel and P. Fritz.
260 |aOttawa : |bEnergy, Mines and Resources Canada, Earth Physics Branch, |c1978.
300 |aiv, 65 p. : |bill., charts
4901 |aEarth Physics Branch open file ; |vno. 79-16
500 |aTitle from cover.
500 |aAt head of title: Geothermal Service of Canada.
500 |aDigitized edition from print produced 2017 [by Natural Resources Canada]
504 |aIncludes bibliographical references.
520 |a"Significant and systematic variations in oxygen-18 and tritium contents were documented in field cores collected in 1974 along the Mackenzie Valley and Polar Gas pipeline routes. As a result of these findings a laboratory program was initiated in the fall of 1977 to investigate these isotope variations under controlled conditions which simulate the growth of permafrost. This report describes the work completed during the second year of the program in developing the equipment and experimental procedures. Data obtained during the first five experimental runs are discussed in relation to fundamental guidelines for future experiments and in relation to the effect the variations produced or not produced will have on the interpretation of the naturally occurring isotopic variations"--Abstract.
546 |aIncludes abstract in French.
69207|2gccst|aGeochemistry
69207|2gccst|aPermafrost
7001 |aFritz, P. |q(Peter), |d1937-
7101 |aCanada. |bEnergy, Mines and Resources Canada.
7101 |aCanada. |bEarth Physics Branch.
830#0|aOpen file (Earth Physics Branch)|vno. 79-16|w(CaOODSP)9.835819
85640|qPDF|s7.89 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M74-3-79-16-eng.pdf