Researcher Profile

Jackson School of Geosciences

Daniel Stockli

Daniel  Stockli
Professor, Department of Geological Sciences, Jackson School of Geosciences
Chevron Centennial Professor in Geology

Work: +1 512 475 6037
Office: JSG 5.224
Mailcode: C9000

My research focuses on (1) the integrated application of thermochronology and geochronology to tectonic and geological problems to better understand the temporal and thermal aspects of tectonic, petrologic, stratigraphic, and geomorphologic processes. In particular, I am interested in combining structural geology with low-temperature thermochronology to elucidate the spatial and temporal distribution of deformation in intra-continental rifting, orogen-parallel extension, and continental rupture leading to seafloor spreading as well as collisional tectonics (e.g., coupling of fold-and-thrust sheet and foreland basin dynamics). (2) Geo- and Thermochronometry technique development, calibration, and bench marking, with special emphasis on development of new thermochronmeters (e.g., monazite, rutile, and magnetite) and novel applications (e.g., geoarcheology, isotopic provenance, etc.)

Click here for link to (U-Th)/He Laboratory Site:

Areas of Expertise

Thermo-/Geochronology, Tectonics and Structural Geology, Isotopic Provenance Analysis, Archeometry, Geothermal Exploration, and Thermal Maturation

Current Research Programs & Projects

2010 - Apache Egypt. Thermochronometric Investigation of the Thermal History and Maturation of Paleozoic strata of the Western Desert, Egypt. $149,972.

2010 - NSF Tectonics. Collaborative Research: Timing, extent, and spatial progression of Neogene displacement transfer, southern Walker Lane, western Great Basin. $193,313.

2010 - DOE Geothermal Technologies Program. Detachment faulting and Geothermal Resources - An Innovative Integrated Geological and Geophysical Investigation of Pearl Hot Spring, Nevada. $4,242,519 (including $1,943,282 in external industry cost-share).

2010 - DOD Geothermal Program Office. Geological investigations, eastern Lava Mountains, Almond Mountain, and southern Slate Range, NAWS China Lake, CA. $780,000 (phase I and II). . (co-PI with J.D. Walker as lead PI)

2008 - NSF Tectonics. Collaborative Research: Development of extensional systems in regions of hot, thick crust: Insight from Tibet. $154,019 (co-PI with M. Taylor)

2008 - NSF Petrology and Geochemistry. Magnetite (U-Th-Sm)/He Geochronology - A Novel Technique for Dating Continental and Oceanic Basalts. $200,036.

2003 - NSF Tectonics. Timing and Kinematics of Cenozoic of E-W Extension in central Tibet Important Transition in the Strain Field of the Tibetan Plateau. $229,909.

2011 - DOE Geothermal Technologies Program. Novel Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault- Controlled Dilational Corners, Dixie Valley, Nevada. $850,000.

Select Past Research

2010 - Ecopetrol-ICP Contract: Low-temperature thermochronological and neotectonic constraints from the Middle Magdalena Valley, Llanos basin, and Eastern Cordillera of Colombia (Phase 3). $616,635.

2009 - Remora Oil Contract. Detrital (U-Th)/He thermochronometry of the Llanos foreland basin, Colombia. $98,000.

2009 - NSF Instrumentation and Facilities. Upgrade of the Laser Heating System for the (U-Th)/He laboratory at the University of Kansas. $76,500.

2008 - Ecopetrol-ICP Contract: Low-temperature thermochronological and neotectonic constraints from the Middle Magdalena Valley, Llanos basin, and Eastern Cordillera of Colombia (Phase 2). $817,000.

2009 - Ecopetrol Contract: Low-temperature thermochronological and neotectonic constraints from the Middle Magdalena Valley, Llanos basin, and Eastern Cordillera of Colombia (Phase 1). $110,000.

2008 - Hocol S.A. Contract: Servico en analysis de thermochronologi de baja temperature (U-Th/He en la Cordillera Oriental (Low-Temperature (U-Th)/He Thermochronometric Analyses in Eastern Cordillera, Colombia). $50,000.

2008 - National Geographic Society. Dating Zircon Survivors in Multi-cycle Arc Volcanoes: a new Tool for Predicting Long-term Magmatic Periodicity? Co-PI with Axel Schmitt (UCLA), $17,400.

2007 - Navy Geothermal Program. Thermochronometric Constraints on the Connection between Advection of Heat through Faulting and Nature of Geothermal Resource for the Hawthorne/Wassuk Range area, Nevada, $134,000.

2006 - Apache Egypt Oil Contract. Thermochronometric Investigation of the SOKAR-1X Unconformity. $69,523.

2005 - NSF Petrology and Geochemistry. Development and calibration of rutile (U-Th)/He geo-and thermochronometry. $ 174,122.

2005 - NSF Instrumentation and Facilities. Technician Support: (U-Th)/He laboratory at the University of Kansas [Phase I]. $203,374.

2005 - KU General Research Fund Grant. Timing of ancient earthquakes by radiometric dating of frictional seismic melts - Development of zircon (U-Th)/He dating of pseudotachylites. $7,588.

2004 - NSF Tectonics. Collaborative Research: Collaborative Research: Exhumation of the Colorado Plateau--spatial and temporal distribution and implications for landscape evolution. $118,818.

2003 - NSF MARGINS. Collaborative Research: Integrated thermochronological & structural investigation of the Saudi Arabian Red Sea rift margin: Implications for the rupturing of continental lithosphere. $189,287.

2003 - NSF MARGINS. Collaborative Research: Integrated thermochronological & structural investigation of the Saudi Arabian Red Sea rift margin: Implications for the rupturing of continental lithosphere. $189,287.

2002 - NSF Tectonics. Collaborative Research: Late Cenozoic to Recent Fault Slip Distribution in the Central Walker Lane Belt, Western Nevada. Award Amount: $162,961.

GSA Fellow - Geological Society of America (2016)

Science Performance Award (Full Professor Level) - UT Dept. of Geological Sciences (2015)

Science Performance Award (Full Professor Level) - UT Dept. of Geological Sciences (2014)

Chevron (Gulf) Centennial Endowed Professorship - Jackson School of Geosciences, University of Texas at Austin (2014)

J. and M. Van Sant Geology Excellence Award - University of Kansas (2006)

Caltech Texaco Philanthropic Prize Postdoctoral Fellowship - Caltech (1999 - 2001)

UC White Mountains Research Station Fellowship - University of California (1996 - 1999)

Outstanding master's thesis award - ETHZ (1995)

Swiss Presidential Silver Medal - President of Switzerland (1995)

Stanford University Graduate Fellowship - Stanford University (1995)

NSF Margins initiative steering committee, Margins steering committee, NSF, Washington DC (2008 - 2010)

Herbette Visiting Professor Universite de Lausanne, Switzerland, Sabbatical, Universite de Lausanne, Switzerland (2007)

Organizer and Convener, GeoEarthScope-MARGINS interface workshop, GeoEarthScope Meeting Monterey, California (2007)

Associate Professor (thermochronology/tectonics), Dept of Geology, University of Kansas (2006 - 2011)

Advisory committee, ISES (Integrated Solid Earth Sciences) initiative, GSA/AGU (2006)

Organizer, EarthScope GeoSwath Walker Lane EarthScope, Reno, Nevada (2006)

Honorary Research Associate, Dept of Geological Sciences, Dalhousie University, Halifax, Canada (2005 - 2011)

Organizer and Convener, GSA Penrose Conference, Kinematics and geodynamics of intra-plate dextral shear in eastern California and western Nevada. Mammoth Lakes, California (2005)

Co-Director of IGL, Isotope Geochemistry Laboratories, University of Kansas (2003 - 2011)

Invited Panelist and Forum Leader, Integrated Solid Earth Sciences workshop, GSA/AGU (2003)

Integrated Solid Earth Sciences Member, pearheading database development for Geochronology and Thermochronology, Cyberinfrastructure workshop at the University of Kansas (2003 - 2011)

Assistant professor (thermochronology/tectonics), Dept of Geology, University of Kansas (2001 - 2006)

Editor, On Track, International fission-track newsletter, Stanford University (1996 - 1997)

Teaching and research assistant, Dept of Geol and Environ Sciences, Stanford University (1995 - 1999)

Teaching and laboratory assistant, Institute of Geology, ETH Zurich (1993 - 1995)


Owen A Anfinson
Specializes in the use of heavy mineral geochronology and thermochronology to understand the geologic evolution of sedimentary basins and their source regions. Past Research Topics Include: Ph.D.- New Insights into Arctic Tectonics: U-Pb, (U-Th)/He, and Hf Isotopic data from the Franklinian Basin, Canadian Arctic Islands; M.S.- Sediment Sources for Catastrophic Glacial Outburst Flood Rhythmites and Quaternary Eolian Deposits at the Hanford Reach National Monument, Washington; B.A.- Stratigraphy and Sedimentology of the Cretaceous Dakota Formation, UT.

Andrew J Smye
I am an Earth Scientist who seeks to understand the processes that drive crustal evolution and its interaction with the hydrosphere and atmosphere. Central to this aim is the integration of data-sets collected over a wide range of length-scales, from kilometers in the field to nanometers in the laboratory. To date, my research has been focused on: 1. Deciphering rates of metamorphism; 2. Mechanisms responsible for exhuming tracts of subducted crust; 3. Transport of volatiles to the mantle; 4. U-Th-Pb isotope systematics of accessory phases. For further details, please follow the link to my personal pages on the 'Links' page.

Elizabeth J Cassel
The interactions between tectonics, climate, and erosion; Earth surface processes; tectonic geomorphology; stable isotope geochemistry and its applications to paleo-elevation, -climate, and -hydrology; fluvial and alluvial depositional environments; sediment provenance and drainage evolution through detrital mineral geochronology; sedimentology and stratigraphy; major, trace element, rare earth element, and stable isotope compositions of volcanic glass; Laramide tectonics and drainage system responses.

Jeffrey H Marsh

Charles Verdel, 2010 - 2011
Post-doctoral Research Associate

Badr Ghorbal, 2009 - 2011
Post-doctoral Research Associate

Joe Andrew, 2009
Post-doctoral Research Associate

Stephanie Brichau, 2004 - 2006
Post-doctoral Research Associate

Graduate Students

Clara J. Brennan , M.S., expected 2019 (Supervisor)
My research focuses on the systematic exploration of single grain 4He/3He thermochronometry in order to recover continuous thermal histories of samples from crustal sections located in the Wassuk Range of western Nevada and the KTB borehole in Germany.

Owen A Callahan , Ph.D., expected 2018 (Committee Member)
I investigate fluid flow in faults and fractures, specifically the interplay between hydrothermal alteration, mechanical deformation, and conduit evolution in high temperature hydrothermal systems, using field observation, petrographic characterization, and experimental rock mechanics.

Megan E Flansburg , M.S., expected 2018 (Supervisor)
I am currently pursuing my M.S. with Dr. Daniel Stockli (UT) with committee members Dr. Konstantinos Soukis (National and Kapodistrian University of Athens) and Dr. Whitney Behr (UT). My research aims to determine the structural history of Ios Island in the southern Greek Cyclades. The southern Cyclades can provide key information to understanding the development of the Aegean microplate during Cenozoic subduction of the African slab. With geo- and low-temperature thermochronometric techniques and detailed structural field observation, I will constrain the development of the Ios metamorphic core complex, namely by: 1. determining whether the initial contact between the Cycladic Basement and the structurally overlying Cycladic Blueschist Unit (CBU) was originally a thrust or if the units were juxtaposed only during Miocene low-angle normal faulting (understanding the role inherited subduction fabrics play in the initiation of low-angle normal faults) 2. placing absolute ages on the various Cycladic Basement lithologies to understand the pre-CBU and pre-Cenozoic subduction history of the southern Cyclades 3. determining the maximum depositional age of the CBU together with (2), above, to determine older over younger relationships (or vice versa) I received my B.S. from the College of William & Mary in 2015. My B.S. honors thesis was focused on the geochemical and petrographic characteristics of mafic lava flows and magmatic enclaves associated with the 18.8 Ma supereruption of the Peach Spring Tuff in northwestern Arizona. I was advised by Dr. Calvin Miller (Vanderbilt University) and Dr. Christopher Bailey (W&M).

Emily Cooperdock , Ph.D., expected 2017 (Supervisor)
Research Interests: Method development for (U-Th)/He analysis; Fe-oxide (U-Th)/He dating; X-Ray Computed Tomography application to geologic samples; timing of serpentinization in tectonic processes; trace element cycling during serpentinization; magnetite formation; U and Th partitioning during metamorphism

Stephanie Wafforn , Ph.D., expected 2017 (Co-supervisor)

Adam D Marsh , Ph.D., expected 2017 (Committee Member)
Contextualizing the evolution of early saurischian dinosaurs using U-Pb detrital zircon geochronology of the Glen Canyon Group in western North America

Adam S Goldsmith , Ph.D., expected 2016 (Supervisor)
Understanding the role of radiation damage on helium diffusion kinetics in zircon through the characterization of alpha-radiation damage by Raman spectroscopy a la Nasdala, et al 1995,2001,2004.

Michael G Prior , Ph.D., expected 2016 (Supervisor)
My current research focuses on brittle deformation within the lower plate of metamorphic core complexes. I am using a combination of structural analysis and apatite (U-Th)/He dating to determine the fault-slip history along low-angle normal faults (LANFs). The Bullfrog Hills and Bare Mountain in westernmost Nevada expose several LANF splays that have exhumed Proterozoic to Devonian rocks during southern Walker Lane transtensional deformation. The cooling history of detachment splays has important implications for the significance of footwall incisement and the accuracy of thermochronometrically determined fault-slip rates. Previous research has involved the structural evolution of the western Chugach Mountains and Prince William Sound in southern Alaska with an emphasis on flat-slab subduction processes and resulting upper-plate deformation. Other areas of interest include: Cordilleran geology Extensional tectonics Interplay between climate and tectonics, specifically the effects of Cenozoic glaciation on orogenesis Contractional and extensional structures in strike-slip regimes Surface exposure dating, TCN and OSL applied to quantification of fault-slip and surface uplift Tectonic geomorphology of mountain belts and active structures .

Edgardo J Pujols , Ph.D., expected 2016 (Supervisor)
My main expertise and research centers on quantifying the temporal aspects and interplay between hinterland deformation and basin evolution. For the past years (both my M.S. and Ph.D. thesis research), my studies have focus on the intricate dynamic processes linking basin evolution and large-scale tectonics combining conventional field techniques and extensive laboratory work. My M.S. research at the University of Kansas investigated the timing and linkages of normal faulting and its influence on Early Miocene sedimentation in the Gulf of Suez rift-basin. Additionally, we employed detrital zircon (U-Th)/He analysis on the entire pre- and syn-rift Paleozoic to Cenozoic sedimentary package in the Gulf of Suez to track detrital provenance and its tectonic controls. Currently, as a PH.D student, I am working on the temporal aspects of thrust-belt and foreland basin interaction using U-Pb-He double dating on zircon grains derived from the Sevier hinterland and proximal parts of the foreland basin in Utah. Mi interés investigativo centra en cuantificar los aspectos temporales entre estilos de deformación y arquitectura de cuenca integrando métodos analíticos (isotópicos) y de campo. Durante los pasados años he estado envuelto en proyectos que tratan de integrar distintas disciplinas geológicas como geología estructural, análisis de cuenca, estratigrafía secuencial, sedimentología y geo- y thermo-cronología para dilucidar las interacciones entre procesos continentales y de formación de cuenca. Mi proyecto principal toma lugar en la Cordillera de los Estados Unidos, en específico, las regiones producto de la Orogenia Sevier durante el Cretáceo en Utah y Colorado.

Spencer M Seman , Ph.D., expected 2016 (Supervisor)

Alison Macnamee , M.S., expected 2015 (Supervisor)
My research focuses on the evolution of geothermal systems, extensional tectonics, and integrated applications of thermochronometry. I study the relationship between geothermal fluid flow and the structural settings that host these systems. In doing so I employ a range of thermochronometers including apatite and zircon (U-Th)/He and 4He/3He techniques to elucidate the thermal and tectonic evolution of extensional provinces, and to record thermal events associated with fluid flow. By testing the sensitivity of these low-temperature thermochronometers to geothermal fluids, I also aim to develop best practices in applying thermochronology to geothermal exploration.

Daniel R Arnost , M.S., expected 2014 (Supervisor)

Nicole Hart , M.S., expected 2014 (Supervisor)
Modern thermochronometric dating techniques have become increasingly powerful tools with a diverse range of applications in quantifying tectonic and sedimentary processes at rifted continental margins. While detrital zircon U-Pb is commonly used in detrital provenance studies, zircon (U-Th)/He (ZHe) dating has been shown to be a complimentary tool that not only constrains sediment provenance, but also the exhumation history of a sediment source region(s). In particular, analysis of ZHe lag time - time required for exhumation, erosion, and deposition in a sedimentary basin - is a powerful tool in elucidating the temporal and thermal evolution of tectonically active source areas. In hyper-extended margin basins, such as the Mauleon basin, inverted unroofing sequences with up-section variations in lag time can record changes in either sediment source(s) or exhumation rates during progressive continental break-up. During progressive thinning and exhumation, different exhumed lithospheric levels will shed not only zircons but also lower-crustal rutile into syn-rift basins recording progressive crustal rifting and thinning. Zircon and rutile U-Pb-He double dating studies have shown the power of coupling these data with other geochemical characteristics or fingerprints (e.g., REE spectra, Hf isotopes, or trace-element thermometry) to further refine provenance signatures. Rutile double dating should be of particular use in hyper-extended margin settings, as rutile-bearing granulitic, lower-crustal rocks are exhumed during the thinning and exhumation phases. In summary, modern detrital U-Pb-He dating of accessory phases is ideally suited to reconstruct the complete tectonic evolution of hyper-extended continental margins, as syn-rift basins tend to archive a more complete record of evolution of the margin compared to bedrock thermal histories that are prone to thermal overprinting or loss to erosion. The Mauleon Basin of the Western Pyrenees is an ideal hyper-extended basin for this study due to extreme crustal thinning during Cretaceous rifting followed by Pyrenean reactivation. Due to the fact that the Western Pyrenees experienced less reactivation and deformation, many of the pre-rift structure of the Western Pyrenees are preserved and can be analyzed and compared to the syn- and post-rift units and structures. This study is the first major chronologic study completed in the Mauleon Basin. The sample transect runs north-south and covers the length of the basin and intra-basin structures. By using the discussed techniques, this study will give new insights into the structure of the Mauleon Basin and the Western Pyrenees, rifting of the Pyrenees and also plate reconstructions and kinematics of the Iberian and European plates.


Douglas Barber (Supervisor)

Nikki M Seymour (Supervisor)
I am a structural field geologist with a particular interest in large-scale tectonics. My research uses geo- and thermochronology to understand the thermal structure and temporal evolution of rifting at magma-poor margins to answer an unresolved question in plate tectonics -- How do you break a continent?

Alissa J Kotowski (Co-supervisor)
I'm pursuing my Ph.D. at the Jackson School of Geosciences, working with Whitney Behr and Danny Stockli. I graduated from Boston College in 2014, where my undergraduate research background focused on Earthquake Migration along the North Anatolian and Alpine Faults with links to regional tectonics and structure. My broad interests encompass tectonic processes, structural geology and metamorphic petrology. My research at UT focuses on the structural and rheological evolution of high-pressure metamorphic rocks during subduction and exhumation from Syros, Greece. More broadly, I'm interested in large-scale geodynamic processes, coupling petrology and (micro) structure to understand the evolution of plate boundary systems, and the links between rock rheology and seismic processes in subduction zones.

Margaret Odlum (Supervisor)
My research focuses on tectonic inversion in the Pyrenees mountains of Spain and France. I am using multi-mineral geo- and thermochronology to study the rift and inversion evolution in the eastern Pyrenees and how inherited rift architecture controlled the early orogenic structural style and incipient foreland basin evolution and sediment routing systems.

Kelly D Thomson (Supervisor)

Cody L Colleps (Supervisor)

Murat Tamer (Committee Member)
Fission Track Dating Method

Cullen D Kortyna (Co-supervisor)
I am interested in the routing of sediment from its erosional source to depositional sink. To investigate this, I use a combination of geo/thermochronologic and sedimentological/stratigraphic methods. Source-to-sink studies are important as a method for understanding landscape evolution, and investigating tectonic and climatic controls on sediment transport and delivery from source to basin.

Eirini M Poulaki (Supervisor)

Catherine Ross (Co-supervisor)

Tim Shin, 2014 (Supervisor)
University of Texas at Austin

Michael Cloos, 2014 (Co-supervisor)
University of Texas at Austin

Joshua Burrus, M.S., 2013 (Supervisor)
University of Texas at Austin

Eugene Szemanski, Ph.D., 2012 (Supervisor)
Thesis: "Structural and sedimentological evolution of the Wadi Al-Hamd half-graben, Medina, Kingdom of Saudi Arabia".

Jeff Schroeder, Ph.D., 2012 (Supervisor)
Thesis: "Geological and Neotectonic Strain Transfer in Northern Fish Lake Valley, Nevada".

Jordan Taylor, M.S., 2012 (Supervisor)
Thesis: "Magnetite (U-Th-[Sm])/He geochronology of Colombia River Basalts."

Evan Bargnesi, M.S., 2011 (Supervisor)
Thesis: "Thermochronometric constraints on detrital provenance and source thermal evolution from a supra-detachment basin in Paros, Greece".

Kyle Gorynski, M.S., 2011 (Supervisor)
Thesis: "Thermochronometric Constraints on the Longevity of a Geothermal System in an Extensional Tectonic Setting".

Sarah Evans, M.S., 2011 (Supervisor)
Thesis: "Tectonic evolution of a Tethyan rift marin and ocean-continent transition in the Eastern Alps - An integrated magnetite and zircon (U-Th)/He thermochronometric approach".

Kurt Sundell, M.S., 2011 (Supervisor)
Thesis: "Thermochronology of the Lunggar active metamorphic core complex, Tibet".

Chris Hager, M.S., 2010 (Supervisor)
Thesis: "Structural Geology and Neotectonics of the Xianza Rift, Central Tibet".

Joe Miller, M.S., 2010 (Supervisor)
University of Kansas

Melissa Wolfe, M.S., 2009 (Supervisor)
Thesis: "He Diffusion in Rutile and Calibration of Rutile (U-Th)/He Thermochronology on the KTB Ultra-Deep Borehole".

Markella Hoffman, M.S., 2009 (Supervisor)
Thesis: "Incision and exhumation history of the Colorado Plateau in the Canyonlands to Book Cliffs Region, Utah".

Travis Glauser, M.S., 2009 (Supervisor)
Thesis: "Thermochronometric investigation of multiple unconformities and post-depositional thermal history of a fault block in the northern Western Desert, Egypt".

John Lee, M.S., 2007 (Supervisor)
Thesis: "Thermochronometric constraints on the incision history of the Grand Canyon from borehole and surface samples".

Terrence Blackburn, M.S., 2006 (Supervisor)
Thesis: " (U-Th)/He Dating of Xenoliths from Kimberlites and basaltic volcanic fields".

David Bradley, M.S., 2005 (Supervisor)
Thesis: "Kinematics and slip rates of the Coaldale Fault, Nevada".

Christopher Tincher, M.S., 2005 (Supervisor)
Thesis: "Cenozoic Volcanism and Tectonics in the Queen Valley Area, western Nevada".

Juan Pablo Centeno, M.S., 2004 (Supervisor)
Thesis: "Exhumation of the Torngat Mountains, northern Labrador, Canada".

Caleb Rhatigan (Supervisor)

Undergraduate Students

Terrence Blackburn (2004). Senior Thesis: "Timing and origin of Kansas kimberlites".
Nathan Winters (2004). Senior Thesis: "Basalt geochemistry of the Volcanic Hills area, Esmeralda County, Nevada".
Kelly Wooten (2004). Senior Thesis: "Mesozoic magmatism and deformation in the northern White Mountains, CA and NV".
James Lyons (2004). Senior Thesis: "Petrography and geochronology of lamprolites in Woodsen County, Kansas".
Jack Desmond (2005). Senior Thesis: "Gravity and basin geometry of Queen Valley, California and Nevada".
Mark Hadley (2005). Senior Thesis: "Gravity and basin geometry of Queen Valley, California and Nevada".
Adam Kueker (2005). Senior Thesis: "Volcanic stratigraphy of Pliocene ash-flow tuffs in northern Fish Lake Valley, Nevada".
Randy Ackerman (2006). Senior Thesis: "Zircon and titanite (U-Th)/He geochronology of Oligocene ash flow tuffs in northern Fish Lake Valley".
Alec Waggoner (2007). Senior Thesis: "Monazite, xenotime, and allanite (U-Th)/He thermochronometry - a case study from the NQTL core complex, Tibet".
Spencer Seaman (2009). Senior Thesis: " (U-Th)/He dating of conodonts - A case study from in the Northern Calcareous Alps, Austria".
Josef Miller (2009). Senior Thesis: "Zircon (U-Th)/He dating of impact melts and suevites from the Manson impact, Iowa".
Adam Goldsmith (2009). Senior Thesis: " (U-Th)/He dating and He diffusion of emerald from the Eastern Cordillera, Colombia".
Jonelle Truit (2009/10). Senior Thesis: "Thermochronometric constraints of contact heating by a basalt flow".

2018Spring GEO 394 Rsch In Geological Sciences
2018Spring GEO 391 Geochronology
2018Spring GEO 381K Tectonic Problems
2018Spring GEO 420K Intro To Field/Strat Meths
2017Fall GEO 394 Rsch In Geological Sciences
2017Spring GEO 394 Rsch In Geological Sciences
2017Spring GEO 391 Thermochronology
2016Fall GEO 394 Rsch In Geological Sciences
2016Fall GEO 339T Continental Tectonics
2016Fall GEO 303 Introduction To Geology
2016Spring GEO 394 Rsch In Structural Geology
2016Spring GEO 391 Geochronology
2016Spring GEO 381K Tectonic Problems
2015Fall GEO 394 Rsch In Geological Sciences
2015Fall GEO 391 Sedimntry Source-To-Sink Dynmc
2015Fall GEO 386G Gis & Gps Applics In Earth Sci
2015Fall GEO 339T Continental Tectonics
2015Spring GEO 394 Rsch In Structural Geology
2015Spring GEO 391 Geochronology
2015Spring GEO 391 Advanced Field Methods
2014Fall GEO 394 Rsch In Structural Geology
2014Fall GEO 391 Thermochronology
2014Fall GEO 339T Continental Tectonics
2014Spring GEO 391 Geochronology
2014Spring GEO 391 Advanced Field Methods
2014Spring GEO 381K Tectonic Problems

Innovative Detrital Provenance Studies - Double Dating PLUS (Graduate)
A major thrust of my current research the development and application of more comprehensive isotopic detrital provenance tools. U-Pb on zircon is clearly the big work horse, but only goes so far and sometimes yields "no" useful info, e.g., if the source of the sediment is mostly recycled sediment. We have extensively pursued double dating of zircons by U-Pb and He, as zircon He ages yield very interesting insights into the thermal and tectonic history of the source terrane; often yielding very different insights than crystallization ages. The combination is powerful, but I think we can take things so much farther by combining double dating with other constrains. People have tried fission track (not precise enough), Hf/Hf (to get mantle separation model ages), etc., but what we want to do and are working on is really Double Dating ++, combining zircon U-Pb-He dating with a variety of other geochemical aspects to more comprehensive understand detrital provenance and improve paleo-tectonic reconstructions. For example, trace-element thermometry (Ti in zirc), REE on zircon (met vs mag origin), Hf/Hf (see above), oxygen isotopes, etc. and also to develop rutile in an analogous manner (e.g., Zr in rut thermometry, Cr/Nb ratio (mafic vs granulitic), REE, etc.). The sky is the limit and what can learn so much. The issue in part it, how much can a single grain tell us before it's gone? The project sounds very laboratory oriented, but it's really a combination of field and lab work. We have identified a few possible case study areas, e.g., Morocco; great exposures, long-lived and preserved record of basin deposition since the Precambrian. My group is already working on some case studies in NW Himalayas, the N & S Pyrenees, the Sevier FTB, Permian Basin and other foreland basin. New projects include provenance studies along rifted and passive continental margins such the Gulf of Mexico, the central Atlantic Margins in Canada, USA, Portugal, and Morocco.


Laser ablation (U-Th)/He and 4He/3He dating of zircon and apatite (Graduate)
Seeking motivated Ph.D. students interested in noble gas geo-thermochronology and geochemistry to pursue project in method development and application of laser ablation (U-Th)/He dating and depth profile 4He/3He thermochronometry of zircon and apatite. Our laboratory has a dedicated noble gas extraction line with a SFT magnetic sector noble gas mass spectrometer and dedicated Excimer Laser. The lab also houses two Element2 magnetic sector single collector ICP-MS instruments with a second Excimer laser as well as a state-of-the-art Bruker optical interferometric microscope. The project will develop laser ablation methodology to recover detailed thermal histories from apatite and zircon by laser ablation (U-Th)/He and 4He/3He dating as well as comparison to step-heating fractional loss experiments.


LA-ICP-MS single-pule U-Pb depth profiling recovery of thermal histories (Graduate)
Seeking motivated Ph.D. students interested in in-situ geochronology to pursue project in method development and application of laser ablation continuous mode or single-pulse U-Pb LA-ICP-MS geo-thermochronology as well as trace element speedometry to constrain thermal history or lower and middle crustal rocks. The UTChron Geo- and Thermochronometry laboratory houses two Element2 magnetic sector single collector ICP-MS instruments with a large-volume cell Excimer laser system, ideally suited for depth profiling and U-Pb and trace element split stream analysis. The laboratory also houses a Bruker optical interferometric microscope to control laser ablation rates as well as a Raman system. The focus of applications is on method development and application to the exhumation of middle and lower crustal rocks in rifted margin settings.


Detrital Geo- and Thermochronometry of Atlantic Rift Basins (Graduate)
Seeking motivated Ph.D. students interested in conducting integrated detrital zircon U-Pb and (U-Th)/He work on Triassic and Jurassic rift basins along the Atlantic margin in the NE USA and Canada and the conjugate margin of Morocco. The goal of the project is to understand basin sedimentation, sediment routing, and sediment provenance to shed light on lithospheric rift processes leading to Atlantic rifting and break-up. This project will combine stratigraphy, detrital geo-thermochronometry, and geodynamics to more holistically understand 2D and 3D sediment dispersal and lithospheric-scale controls on sediment dispersal and stratigraphic record during progressive rifting through time.


IMPACT: Geo- and thermochronometry of the Chicxulub Crater and KPg ejecta deposits (Graduate)
Seeking motivated Ph.D. student interested in investigating the thermal history of the recently drilled Chicxulub impact crater (IODP 364) in collaboration with Drs. Dan Stockli (DGS) and Sean Gulick (UTIG). The aim of the project is to test different hypotheses for the formation of the peak ring, to investigate the thermal evolution of the impact and the post-impact hydrothermal alteration as well as to explore KPg deposits in the USA and Cuba using U-Pb and (U-Th)/He geo-and thermochronometry. In addition, we envision to use other IODP and industry borehole samples as well as outcrop samples from the USA and potentially Cuba to elucidate the ejecta and tsunami deposits related to the KPg impact in the southern Gulf of Mexico to more holistically understand the impact and its effects on the circum-GOM region.