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This project is conducted in collaboration with Dr. Thomas Hadlari from the Geological Survey of Canada. We will investigate the deformation history at the eastern margin of the Northern Canadian Cordillera. We conducted fieldwork in the Richardson Mountains in summer 2018. We will integrate structural geology, sedimentology, and geo-and thermochronology analyses. We will use thermochronology to quantify the sense and timing of faulting. Graduate student Ryan Mckay is conducting thermochronology studies within his master thesis project.
Funding for this projects come from Natural Resources Canada and NSERC- Discovery Grant awarded to Enkelmann |
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This project is conducted in collaboration with Hersh Gilbert (University of Calgary) who is using seismic data to investigate the subsurface structure of the Valemount area. We will use low-temperature thermochronology to measure the time and amount of displacement across the rocky mountain trench. Graduate student Kelley Fraser is conducting apatite FT analysis, while undergraduate student Ryan Grieco and Kade Damant conduct apatite and zircon U-Th/He dating. Funding for this projects come from NSERC- Discovery Grant awarded to Enkelmann |
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This project was funded by the American Chemical Society - Petroleum Research Fund (start 9/2015) and conducted in collaboration with Richard Lease (USGS Alaska).
We aimed to investigate the 7 Myr long offshore sedimentary record of the Gulf of Alaska to investigate the changes in rock exhumation in southeast Alaska. We used geo- and thermochronology methods (zircon U-Pb and fission track dating) on industry borehole samples as well as bedrock dating of the coastal mountains in the Yakutat Bay Area. Publications: *Schartman, A., Enkelmann, E., Garver, J.I., Davidson, C. 2019. Uplift and Exhumation of the Russell Fiord and Boundary blocks along the northern Fairweather Transform Fault, Alaska. Lithosphere. https://doi.org/10.1130/L1011.1 *Bootes, N., Enkelmann, E.,Lease, R., 2019. Late Miocene to Pleistocene source to sink record of exhumation and sediment routing in the Gulf of Alaska from detrital zircon fission-track and U-Pb double dating. Tectonics doi: 10.1029/2019TC005497 |
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The ultimate goal of this research is to better understand the dynamics of the upper plate as a result of flat-slab subduction along convergent margins, including the magmatic, topographic, erosional, and depositional response to this process. We investigate the Late Cretaceous – Cenozoic sedimentary deposits of the Cook Inlet basin in southcentral Alaska, which constitute a complete sedimentary record of forearc basin strata deposited during subduction of normal oceanic crust, flat-slab subduction of a spreading ridge, and by subduction of an oceanic plateau. This 3 year project is funded by the National Science Foundation - Tectonics (start 9/2014) and a collaboration with Emily Finzel (University of Iowa)
Publications: Enkelmann, E., *Sanchez Lohff, SK., Finzel, FS 2019. GSA Bulletin Reid, MR, Finzel, E, Enkelmann, E., McClelland, WC., 2018. GSA Special Volume Finzel, E. & Enkelmann, E., 2017. Geochem. Geophys. Geosyst., 18, 1739– 1760. Finzel, E., Enkelmann, E., *Falkowski, S., Hedeen, T., 2016. Tectonics, 35, 7, 1735-1759. |
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In this project we investigated the exhumation history of the St. Elias Syntaxis region. This project is funded by the Deutsche Forschungsgesellschaft (DFG grant EN341/1-2, 2011-2015)
Publications: Enkelmann, E., *Piestrzeniewicz, A., *Falkowski, S., et al., 2017. Earth and Planetary Science Letters, 457, 348–358. *Falkowski, S. and Enkelmann, E. 2016. Lithosphere, 8, 359–378. *Falkowski, S., Enkelmann, E. Drost, K., et al., 2016. Tectonics, 35, 447-468. Enkelmann, E., Koons, P.O., Pavlis, T.L., et al., 2015. Geophysical Research Letters, 42, 5838–5846. Enkelmann, E., Valla, P.G., Champagnac, J.-D., 2015. Quaternary Science Review, 113, 23–38. *Falkowski, S., Enkelmann, E., Ehlers, T.A. 2014. Tectonics 33, 597–616. *Grabowski, D., Enkelmann, E., Ehlers, T.A. 2013. JGR-Earth Surface, 118, 1-18. |
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In this project we used detrital apatite and zircon dating (fission track and U-Th/He dating) derived from IODP Expedition 341 borehole material to investigate the sediment transport from the St. Elias to the Gulf of Alaska. This 2 year project was funded by the National Science Foundation - Ocean Drilling Program and conducted in collaboration with Ken Ridgway (Purdue), John Jaeger (U. Florida), Sean Gulick (U. Texas), Robert Reece (Texas A&M) and Ellen Cowan (Appalachian State University).
Publications: *Dunn, C.A., Enkelmann, E., Ridgway, K.D., Allen, W.K., 2017. Source to sink evaluation of sediment routing in the Gulf of Alaska and Southeast Alaska: a thermochronometric perspective. JGR-Earth Surface, 122, 711-734. |
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The Cenozoic evolution of the Mackenzie Mountains has not been investigated because fundamental field-based observations and analytical data that can address those questions are lacking. We conducted a reconnaissance trip in July–August 2014 to the Mackenzie Mountains with the goal to collect field observations including structural and geomorphologic data, and to collect samples for various dating techniques that allow quantification of the rates and timing of surface uplift and erosion over thousand and million-year time scales. This expedition was funded by the National Geographics Society – Explorer Fund (2014).
Publications: Enkelmann, E., Finzel, E., Arkle, J. 2019. Deformation at the eastern margin of the Northern Canadian Cordillera: potentially related to opening of the North Atlantic. Terra Nova 31, 3. |
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