I use thermochronology, geochronology, and geologic observations to address problems in continental tectonics and mantle dynamics, with particular focus on understanding the coupling of deeper Earth and surface processes over extended (10s-100s Ma) timescales. I also direct a (U-Th)/He geochronology lab, containing an Alphachron He extraction line and Agilent 7900 quadrupole ICPMS, in which we emphasize the development and refinement of both conventional (e.g., apatite, zircon) and novel (e.g., conodonts, perovskite, garnet) He thermochronometers. My group especially seeks creative, collaborative applications of (U-Th)/He data to problems in fields in which the technique has not typically been utilized (e.g., to constrain lunar impact histories, calibrate mantle dynamic models, date kimberlite emplacement). Our goal is to consistently remain open-minded to new ways of thinking about the significance of our results.
Thermochronology, geochronology, tectonics, geologic time
GEOL 2005 - Introduction to Earth Materials
Spring 2018 / Spring 2019 / Spring 2020
Provides introduction to the classification, composition and properties of the materials that compose the Earth, how these materials are studied, and how they are used to interpret Earth history and processes. Required for the Geology major.
GEOL 3090 - Developing Scientific Writing Skills
Focuses on the development of scientific writing skills. Enhances student ability to write professionally, revise text and review the work of others. Writing assignments integrate the subject matter of different topics in earth science. Department enforced prerequisites: a lower division writing course and two of the following: GEOL 2001 or GEOL 2005 or GEOL 2700 or GEOL 3010 or GEOL 3030 or GEOL 3120 or GEOL 3320 or GEOL 3430 or GEOL 3820.
GEOL 5215 - Geochronology and Thermochronology
Constraining the timing of events and rates of processes is fundamental to earth science research. The field of geochronology and thermochronology is rapidly evolving. Cutting-edge aspects of geochronologic methods and emerging techniques will be especially emphasized. Lectures will emphasize the principles and assumptions of each technique. Seminar discussions will focus on recent papers that demonstrate state-of-the-art applications to diverse problems. Same as GEOL 4215.
GEOL 5700 - Geological Topics Seminar
Spring 2018 / Fall 2019 / Spring 2020
Offers seminar studies in geological subjects of special current interest. Primarily for graduate students, as departmental staff and facilities permit. May be repeated up to 15 total credit hours provided that topics vary.