Geological Survey of Canada, Current Research (Online) no. 2000-A2 PDF Download
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Author: Kazuharu Shimamura
Publisher: Natural Resources Canada
ISBN: 0660179946
Category :
Languages : en
Pages : 8
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Book Description
The use of static global positioning system (GPS) equipment for accurate horizontal & vertical positioning in field geology operations at high latitudes is made difficult by the need to set up & operate a GPS reference station and limitations on the distance between the reference station & field GPS due to errors introduced by the ionosphere. Dual-frequency GPS receivers have the potential to eliminate these problems since they can eliminate ionospheric errors and thereby increase baseline lengths, thus potentially permitting the use of existing GPS reference stations. This paper describes the use of a dual-frequency receiver for establishing benchmarks along the Yukon River as a field trial of this technology. Field methods and post-processing of the data using GPS data from permanent receiving stations are described, and baseline results are presented. The derived benchmarks will be applied to a survey of fill thickness below the Yukon River.
Author: Kazuharu Shimamura
Publisher: Natural Resources Canada
ISBN: 0660179946
Category :
Languages : en
Pages : 8
Get Book Here
Book Description
The use of static global positioning system (GPS) equipment for accurate horizontal & vertical positioning in field geology operations at high latitudes is made difficult by the need to set up & operate a GPS reference station and limitations on the distance between the reference station & field GPS due to errors introduced by the ionosphere. Dual-frequency GPS receivers have the potential to eliminate these problems since they can eliminate ionospheric errors and thereby increase baseline lengths, thus potentially permitting the use of existing GPS reference stations. This paper describes the use of a dual-frequency receiver for establishing benchmarks along the Yukon River as a field trial of this technology. Field methods and post-processing of the data using GPS data from permanent receiving stations are described, and baseline results are presented. The derived benchmarks will be applied to a survey of fill thickness below the Yukon River.
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Publisher: Natural Resources Canada
ISBN: 0660180529
Category :
Languages : en
Pages : 5
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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:
Publisher: Natural Resources Canada
ISBN: 0662314360
Category :
Languages : en
Pages : 18
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Author:
Publisher: Natural Resources Canada
ISBN: 0660180367
Category :
Languages : en
Pages : 14
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Author:
Publisher: Natural Resources Canada
ISBN: 0660180049
Category :
Languages : en
Pages : 13
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Author: T. J. Katsube
Publisher: Natural Resources Canada
ISBN: 0660182092
Category : Sedimentary rocks
Languages : en
Pages : 8
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Book Description
This study presents theoretical aspects and results of analyzes of the adsorbed water thicknesses and number of water molecular layers on pore surfaces for 11 sedimentary rock samples obtained from 850-950 metres depth in a Northwest Territories well. An additional purpose of the study was to determine if the adsorbed water content shows an increase with decreased temperature below 25 degrees C. Information is included on the analytical methodology. The results provide information that can be used to model the effect of temperature on the permeability history of compacting shale & mudstone under low temperature environments.
Author:
Publisher: Natural Resources Canada
ISBN: 0660180235
Category :
Languages : en
Pages : 9
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Author:
Publisher: Natural Resources Canada
ISBN: 0660180057
Category :
Languages : en
Pages : 13
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Book Description
Author: David Huntley
Publisher: Natural Resources Canada
ISBN: 0662435370
Category : Geology
Languages : en
Pages : 7
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Book Description