Tectonics & Earth’s Interior
NAU students in SES study the Earth from the inside out
Tectonics is the broad study of how the Earth’s internal and surface processes control its evolution and structure. Studying these processes is fundamental for understanding volcanism, faulting, mountain building, natural hazards, and the location of resources within the Earth. Further, tectonic processes have feedbacks with the biosphere, atmosphere, and hydrosphere that are important for life on Earth and its evolution.
The importance of knowledge about earth
In studying tectonics, students in the School of Earth and Sustainability at Northern Arizona University develop a better understanding of the formation of the Earth, how landscapes have evolved through time, and our sense of place within the Earth and its history.
Because of this broad reach of Tectonics, it is a critical area of study for most careers in the geosciences. It is especially relevant for jobs in the energy and mining industries, engineering geology, education, working for many government agencies, and ecotourism.
The School of Earth and Sustainability research into tectonics addresses scientific questions including:
- How do plate boundary processes impact deformation at the margins of continents and within their interiors? How do these systems evolve through time?
- How do processes within the deep crust and mantle drive uplift, deformation, and volcanism observed at the Earth’s surface?
- How do surface processes control and effect larger tectonic processes? How do surface and deeper processes interact?
- What processes are controlling the tectonic evolution of the American Cordillera, specifically the Southwestern US and Northwestern Mexico? How and when did the landscape of the Southwest develop?
To address these questions, we draw on expertise in fields including basin analysis, geochronology, geochemistry, petrology, geophysics, stratigraphy, volcanology, and structural geology. Our faculty, staff, and students leverage this expertise to answer cutting edge geologic problems both locally and around the world in regions such as the western Pacific, Anatolia, South America, and North America, and Africa.
Who we are
Faculty and research staff Accordion Open
- James Gaherty – earthquake seismology, geodynamics
- Ryan Porter – geophysics, seismology, tectonics
- Christine Regalla – structural geology, active tectonics, tectonic geomorphology
- James Sample – tectonics, geochemistry, geoscience education
- Donna Shillington – geophysics, seismology, tectonics
- Michael Smith – sedimentary geology, geochronology, paleogeography
- Casey Tierney – geochemistry, volcanology
- Mary Reid – igneous petrology, isotope geochemistry (Emeritus)
- Michael Ort – volcanology, crustal petrology (Emeritus)
- Nancy Riggs – volcanology, tectonics (Emeritus)
Research laboratories Accordion Closed
- SEM lab
- ICP – Mass Spectrometer
Collaborators Accordion Closed
- USGS Astrogeology Science Center (ASC)
- USGS Geology, Minerals, Energy, and Geophysics Science Center (GMEGSC)
- Incorporated Research Institutes for Seismology (IRIS)
- Northern Arizona Planetary Science Association (NAPSA)
Degree programs Accordion Open
- Undergraduate students interested in studying tectonics typically pursue Bachelor’s of Science (BS) degrees in Geology. Emphasis areas in Applied Geology and Geophysics are also available within the major.
- At the Master’s level students interested in tectonics pursue the thesis-based Geology Master’s of Science (MS) degree. In addition to thesis work this degree provides students with a broad geologic background ideal for a wide variety of careers in the Geosciences.
- The Earth Systems emphasis in the Earth Sciences & Environmental Sustainability PhD program is an innovative and flexible interdisciplinary program that integrates several sub disciplines to address outstanding questions in tectonics.
Graduate-level courses Accordion Closed
- GLG 516 Petrologic Phase Equilibria
- GLG 542 Advanced Structural Geology
- GLG 561 Regional Tectonics
- GLG 565 Introduction to Solid Earth Geophysics
- GLG 570 Geochemistry
- GLG 612 Igneous Petrology
- GLG 615 Metamorphic Petrology
- GLG 617 Isotope Geology
- GLG 625 Siliciclastic Petrology
- GLG 627 Depositional Systems
- GLG 629 Evolution of Sedimentary Basins
- EES 698 – 1-2 seminar classes on specific tectonics topics are typically offered each year