Research

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Convergent Systems

My primary research interests are associated with the evolution of structural styles and strain partitioning in active and ancient fold-thrust belts. I am currently working on related projects in three areas: (1) the Namurian Basin in western Ireland, (2) the Nankai accretionary prism of southeastern Japan, (3) the Hudson Valley fold-thrust belt of eastern New York State, and (4) the Mount Tallac roof pendant in the central Sierra Nevada.

Rock Fabrics

I am fascinated by rock fabrics and enjoy using them as a tool for resolving deformation histories. My research in this area ranges from the use of the anisotropy of magnetic susceptibility (AMS) to more traditional grain and outcrop-scale analyses to quantify relationships among primary (depositional), magnetic and strain fabrics.

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Ireland

Convergent Systems Resolving fold-thrust belt related shortening of the Ross Sandstone in the Namurian Basin, Western Ireland Exposures of strata deposited within the Namurian Basin in County Clare, western Ireland, offer a truly outstanding opportunity to examine the formation, fill and closure of a Carboniferous sedimentary basin at a range of scales. These excellent exposures, […]

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Sierra Nevada

Interpreting the structural fabrics of the Sierra Nevadan Mount Tallac roof pendant; Desolation Wilderness Area, Eldorado National Forest, California […]

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Japan

Examining active structures in the Nankai accretionary prism off the southeastern coast of Japan. […]

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Northern Appalachian Tectonics

structural architecture of the post-Taconic northern Appalachian fold-thrust belt. […]

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Magnetic fabrics

Research: Rock Fabrics Magnetic fabrics in very low strain (<5%) sandstone  Rocks in the sub-metamorphic portions of regions like the Hudson Valley fold-thrust belt usually develop only slight penetrative strains, which generally only partially overprint preexisting, primary (depositional) fabrics. The resulting composite (strain/primary) fabrics present a problem when using traditional strain analysis (e.g., normalized Fry […]

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Rosendale Natural Cement

the history of natural cement production in eastern New York. Dolostone mined from the Hudson Valley fold-thrust belt near Rosendale […]

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