Geological Survey of Canada, Current Research (Online) no. 2000-B1 PDF Download
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Author: Stephen Andrew Wolfe
Publisher: Natural Resources Canada
ISBN: 0660180154
Category :
Languages : en
Pages : 11
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Book Description
Unusually high temperatures in 1998 in the Mackenzie Delta and Yukon coast regions prompted an investigation of the short-term response of permafrost to this warming. This paper describes an investigation that compared ice wedge characteristics from Richards Island and the Yukon coast with those from previous studies. Field observations from active-layer monitoring in the Richards Island and Tuktoyaktuk Peninsula area, and historical trends in air temperatures, are also interpreted relative to data from 1998.
Author: Stephen Andrew Wolfe
Publisher: Natural Resources Canada
ISBN: 0660180154
Category :
Languages : en
Pages : 11
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Book Description
Unusually high temperatures in 1998 in the Mackenzie Delta and Yukon coast regions prompted an investigation of the short-term response of permafrost to this warming. This paper describes an investigation that compared ice wedge characteristics from Richards Island and the Yukon coast with those from previous studies. Field observations from active-layer monitoring in the Richards Island and Tuktoyaktuk Peninsula area, and historical trends in air temperatures, are also interpreted relative to data from 1998.
Author:
Publisher: Natural Resources Canada
ISBN: 0662363906
Category :
Languages : en
Pages : 18
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Book Description
Author: Barbara Elizabeth Medioli
Publisher: Natural Resources Canada
ISBN: 066233583X
Category :
Languages : en
Pages : 13
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Book Description
Author: T. J. Katsube
Publisher: Natural Resources Canada
ISBN: 0660182203
Category :
Languages : en
Pages : 11
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Book Description
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.
Author: Keith Sircombe
Publisher: Natural Resources Canada
ISBN: 0660182289
Category :
Languages : en
Pages : 14
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Book Description
Initial assessment and visual communication of the salient features of large sets of geochronological age data are commonly achieved with binned frequency histograms or probability density distributions. This paper describes the mathematical basis of traditional binned frequency histograms and probability density distributions, then compares & contrasts the advantages & limitations of both methods for displaying absolute age data. Important points related to the use of these diagrams as the principal means of communication of such data are noted.
Author: C. Sasseville
Publisher: Natural Resources Canada
ISBN: 0660180332
Category :
Languages : en
Pages : 11
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Book Description
Presents results of 1999 field studies focusing on the structure & stratigraphy within the Wallace Lake greenstone belt of east central Manitoba. The stratigraphic results involve redefinition of some of the sequences previously described in the belt and the introduction of new stratigraphic nomenclature. The nature of the contact between stratigraphic assemblages, and the internal stratigraphy of these assemblages, is then presented. This is followed by a discussion of the stratigraphic position of various komatiitic units found in the belt. The final sections describe the geochemistry of the volcanic rocks and the structural history of the greenstone belt.
Author:
Publisher: Natural Resources Canada
ISBN: 0662449517
Category :
Languages : en
Pages : 14
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Book Description
Author:
Publisher: Natural Resources Canada
ISBN: 0662442954
Category :
Languages : en
Pages : 15
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Book Description
Author:
Publisher: Natural Resources Canada
ISBN: 0662316681
Category :
Languages : en
Pages : 11
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Book Description
Author:
Publisher: Natural Resources Canada
ISBN: 0662367286
Category :
Languages : en
Pages : 16
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Book Description
