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Litharenitic
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Sand,
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Jura
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Creek,
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Rocky
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Mountains
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Jura Creek | Grey, subrounded carbonates |
Location | Jura Creek E of Canmore, Rocky Mountains, Alberta, Canada |
Depositional facies | replace this with text about the dep facies |
Provenance | Geographically narrow provenance in drainage area of Jura Creek, exclusively from devonian limestones and dolomites of the Front Range |
Composition | Dolomite, limestone, shale, some chert, few phosphorite grains |
Texture | Coarse sand, very poorly sorted to poorly sorted, angular to subangular |
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Petrographic thin section:
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Description | Variable fine to coarse, sparry, recrystallised dolomite, few foliated shales, some chert and rare brown phosphorite grains |
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Bright field | Dark field |
Sample number | heubeck0060 |
Collector | Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin |
Date of sampling | August 2005 |
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Comments:
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Jura Creek is a popular hiking trail east of Canmore and leads to an outcrop of late devonian anoxic shales (Exshaw Shale)
