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http://hdl.handle.net/11375/5828
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DC Field | Value | Language |
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dc.contributor.advisor | Walker, R. G. | en_US |
dc.contributor.author | Duke, Lewis William | en_US |
dc.date.accessioned | 2014-06-18T16:33:12Z | - |
dc.date.available | 2014-06-18T16:33:12Z | - |
dc.date.created | 2010-05-12 | en_US |
dc.date.issued | 1985-06 | en_US |
dc.identifier.other | opendissertations/1176 | en_US |
dc.identifier.other | 2524 | en_US |
dc.identifier.other | 1306477 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/5828 | - |
dc.description.abstract | <p>Cardium Formation exposures in Alberta consist of vertically juxtaposed thickening- and coarsening-upward cycles. Shallow-marine deposits exhibiting hummocky cross-stratification (HCS) dominate cycles. Locally, cycles record a marine to non-marine transition; they are interpreted as the deposits of a prograding storm-dominated shoreline. Sands were introduced into the basin by storms, and were transported in the proximal offshore region by seostrophically balanced bottom flows. Sharp contacts between cycles represent transgression surfaces; they display erosionally based, laterally extensive marine conglomerates. Locally, erosional transgressions removed non-marine deposits from the cycle tops over extensive distances normal to shoreline. Conglomerates were transported during transgressions, accumulating within a "hydrodynamic shadow" over the drowned shoreface of the preceding regressive episode.</p> <p>A technique for paleohydraulic analysis of conglomeratic symmetrical ripples has been discussed, tested, and applied to Cardium occurrences; results suggest that associated examples of HCS were formed in the oscillatory-flow flat-bed field by previously unrecognized low-amplitude, three-dimensional orbital ripples.</p> | en_US |
dc.subject | Geology | en_US |
dc.subject | Geology | en_US |
dc.title | Sedimentology of the Upper Crataceous (Turonian) Cardium Formation in Outcrop in Southern Alberta | en_US |
dc.type | thesis | en_US |
dc.contributor.department | Geology | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 24.07 MB | Adobe PDF | View/Open |
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