“Experimental and Field Study of Flow Disequilibria of Bedforms: New Approaches to the Study of Bedforms and Stratification” Johns Hopkins University, March 2, 2018.
“Storm-Deposited Bedforms and Stratification: Controversies and Insights from the Laboratory and Field”, Exxon Research Production, January 10, 2017.
“Storm deposition: Controversies and insights from the laboratories, oceans, and field”, Lafayette College, January 29, 2016.
“Timing and nature of late-stage Gondwanan assembly and peri-Gondwanan tectonic activity: Records from multiple continents”, Yale University, January 20, 2016.
“The dynamic early Paleozoic world of Colorado: Faunas, environments, tectonics, and large earthquakes”, Denver Museum of Nature and Science, August 18, 2015.
“Integrated stratigraphic, geochronologic, and geochemical model for Neogene tectonics of the Himalaya: Implications for the marine isotopic record”, University of Pennsylvania, March 27, 2015.
“The Geologic Record of Storms: Overview and case study of the Minturn Formation, Central Colorado”, Colorado State University, February 24, 2014.
“Assembly of Gondwanaland: an Antarctic and Himalayan Perspective”, University of Barcelona, January 30, 2014
“The Geologic Record of Storms”, Woods Hole Oceanographic Institute, January 14, 2014.
“Signatures of the amalgamation of Gondwanaland: Antarctica and Himalaya”, Jodhpur University, India, December 5, 2012.
“Depositional, Geochronological, and Tectonic Signatures of the Amalgamation of Gondwanaland: A Himalayan and Antarctic Perspective”, Colgate University, November 27, 2012.
“Onset of uplift of the Lesser Himalaya: Depositional and Erosional History of the Northern Indian Margin”, Washington University of St. Louis, March 1, 2012.
“Depositional Dynamics of a Highstand Prodeltaic System in the Pennsylvanian Minturn Formation of the Central Colorado Basin: Deposits of Wave-Influenced Turbidity Currents”, Rocky Mountain Association of Geologists and SEPM, March 29, 2011.
“Depositional, geochronological, and tectonic record of the Cambrian Ross Orogeny, Antarctica”, Korea Polar Research Institute, Incheon, Korea, March 14, 2011.
“Lower Paleozoic depositional history and tectonics of the Himalaya: Implications for Neogene uplift and marine isotopic records”, Memorial University of Newfoundland, St. John’s, Newfoundland, October 1, 2010.
“Stratigraphy and geochronology of lower Paleozoic rocks of the Himalaya: implications for Neogene uplift and marine isotopic records”, Australia National University, Canberra, Australia, August 12, 2010.
“Sedimentology, Paleontology, and Geochronology of Cambrian rocks of the Himalaya: India to Bhutan”, Smith College, North Hampton, MA, April 22, 2010.
“Using sedimentary successions and geochronologic data to constrain Himalaya tectonics, uplift, and erosion: Beyond the lithotectonic concept”, Harvard University, Cambridge, MA, March 1, 2010.
“Lithotectonic zones of the Himalaya: Use of stratigraphic and geochronologic data to constrain Neogene uplift history and ocean geochemistry”, Massachusetts Institute of Technology, Cambridge, MA, February 26, 2010.
“Unusual depositional dynamics of cyclic Cambrian deposits: Biomere trilobite extinctions and the demise of the inner detrital belt of North America”, University of California, Riverside, Riverside, CA, December 8, 2009.
“Early uplift of the Ross orogen, Antarctica: stratigraphy and detrital zircon geochronology”, California Institute of Technology, Pasadena, CA, November 17, 2009.
“The northern margin of East Gondwanaland: Stratigraphic and geochronologic constraints on Himalayan reconstructions”, University of California, Los Angeles, CA, November 4, 2009.
“Integrated stratigraphic and geochronologic approach to understanding the geologic history of the Himalaya: Limitations of the lithotectonic concept”, California Institute of Technology, Pasadena, CA, October 4, 2009.
“The Cambrian–Ordovician boundary interval from Montana to Texas: cyclic sedimentation, biomere trilobite extinctions, and the demise of the inner detrital belt”. University of Montana, Winston–Thompson Symposium, Missoula, MT, September 11, 2009.
“Early tectonics of the Himalaya”. Stanford University, Stanford, CA, October 24, 2008
“Hyperpycnal flow deposits of the Pennsylvanian Minturn Formation, Central Colorado Basin”. Stanford University, Stanford, CA, October 23, 2008
“Cambrian of the Himalaya: Controversies and Gondwanan Reconstructions”. Pomona College, Pomona, CA, March 26, 2008.
“Early Paleozoic Orogenic and Sedimentary History of the Himalayas”. California Institute of Technology, Pasadena, CA, March 14, 2008.
“The Sedimentary Signal of Gondwanan Assembly”. University of Texas, Austin, TX, February 18, 2008.
“Building Gondwanaland: the record of Cambrian mountain building in Antarctica and the Himalayas”. University of California, Davis, CA, April 14, 2006.
“A controversial early Paleozoic tectonic event in the Himalayas: record from northern India”. University of Minnesota, Duluth, MN, March 9, 2006.
“ The geologic record of storm events”. University of Minnesota, Duluth, MN, March 10, 2006.
“The record of ancient storms: an example from the Pennsylvanian Fountain Formation of central Colorado”. University of Northern Colorado, Greeley, CO, November 11, 2005.
“Gondwanan Assemblage: Views from Antarctica and the Himalayas: An integrated stratigraphic, paleontologic, and geochronologic approach”. Yale University, New Haven, CT, September 29, 2004.
“A fault-bounded depositional basin in central Colorado”, Colorado Scientific Society, Golden, CO, September 16, 2004.
“Paleogeography and high-resolution stratigraphy of Cambrian and Ordovician strata of the Rocky Mountain region”. Rocky Mountain Section, SEPM, Denver, CO, January 27, 2004.
“Early Paleozoic Paleogeography of the Rocky Mountain Region: Myths concerning the birth of the Transcontinental Arch”. University of Missouri, Columbia, March 21, 2003.
“Fallen Arches: Myths Concerning the Early Paleozoic Paleogeography of the Rocky Mountain Region”. Arizona State University, November 13, 2002.
“Neoproterozoic to Cambrian history of the Transantarctics: Rodinian Breakup to Gondwanan Assembly”. University of New Mexico, March 26, 2002.
“Cambrian of Antarctica: Depositional Record of Gondwanan Assembly”. Colgate University, February 15, 2001.
“Wave-modified turbidites from the Cambrian of Antarctica: Evolving views on storm deposition by Oceanographers and Geologists”: Lamont Doherty Earth Observatory, Columbia University, January, 2001.
“Wave-modified turbidites and the production of combined-flow structures”: Massachusetts Institute of Technology, October, 2000.