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- 2Devonian
- 1Alberta
- 1Anisotropy of magnetic susceptibility
- 1Aragonite, Calcite
- 1Bitumen
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Environmental Controls on Alternating Aragonite-calcite Laminations in Notch-speleothems from Cayman Brac, Cayman Islands, British West Indies
DownloadFall 2017
Speleothems that grow in semi-exposed surface environments, such as wave-cut notches, are not well understood despite their widespread distribution. The +6.4 m-high wave-cut notch on Cayman Brac, that formed ~ 125 ka ago, is decorated with stalactites, stalagmites, and columns that grew between...
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Spring 2023
Centennial, millennial and multi-millennial scale climate cycles have been observed in paleoclimate proxies distributed globally. Examples of these cyclical climate cycles include oscillations with periods of ~2.3, ~1.5, ~1, and ≤0.5 thousand years (kyr) in the Quaternary. In the Neogene, longer...
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Paelomagnetic and petromagnetic studies of Chinese Cenozoic sediments: Paleoclimatic, tectonic, and evolutionary implications
DownloadFall 2012
The anisotropy of magnetic susceptibility (AMS) was investigated in three Chinese Loess Plateau sedimentary sections along a W–E transect. Previously published models assumed that winter monsoons were responsible for the magnetic fabric formation of loess sequences. In our new interpretation, the...
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Porosity and permeability in the Graminia Formation, Upper Devonian Winterburn Group in the Germain Field, northeastern Alberta
DownloadFall 2014
The Upper Devonian Graminia Formation (Winterburn Group) found in the Germain Field of northeastern Alberta includes the Blueridge Member (Frasnian) and the Upper Graminia Member (Famennian). A green silty-shale paleosol overlies the formation in this area. The bitumen-bearing dolostones of this...
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Study of the Chinese loess and Siberian flood basalts: new global scale insights to the paleoclimate and geomagnetic field changes
DownloadSpring 2017
Paleomagnetism, in conjunction with other earth science methods, studies the behavior of the Earth's magnetic field, the drift of tectonic plate, climate and environmental changes. This thesis implements different applications of paleomagnetism to develop a technique to evaluate age for the...
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Spring 2012
Three sedimentary drilling cores from Lake Baikal were used to build a new composite magnetic susceptibility record for the Brunhes and upper Matuyama chrons. The developed age model, based on the constructing of the composite susceptibility signal and orbital tuning, shows a substantial...