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Todd Halihan

Professor

Geology

Orcid identifier0000-0001-7324-9745 (opens in a new tab)⁠
  • Professor
    Geology
  • 405-744-6358 (Work)
  • Oklahoma State University, School of Geology, 105 Noble Research Center, STILLWATER, OK, 74078, United States
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TEACHING SUMMARY

My primary courses are in hydrogeology and environmental geology. I also work teaching the public and industry professionals. I work with the National Ground Water Association, the Geological Society of America, and the International Association of Hydrogeologists to develop professional development courses, K-12 exercises, and give talks on groundwater issues.

TEACHING

  • COURSE TAUGHT
    Doctoral Dissertation Research
    8 Jun 2026 - 31 Jul 2026
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    12 Jan 2026 - 1 May 2026
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Master's Thesis
    12 Jan 2026 - 1 May 2026
    Work toward master's thesis in geology.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Approval of graduate committee.
  • COURSE TAUGHT
    Advanced Studies in Geology
    18 Aug 2025 - 5 Dec 2025
    Individual library, laboratory and/or field projects on facets of geology not covered by existing courses. Field trips may be required. Course previously offered as GEOL 5710.Offered for variable credit, 1-6 credit hours, maximum of 12 credit hours.Prerequisite(s): Consent of instructor.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    18 Aug 2025 - 5 Dec 2025
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Master's Thesis
    18 Aug 2025 - 5 Dec 2025
    Work toward master's thesis in geology.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Approval of graduate committee.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    9 Jun 2025 - 1 Aug 2025
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Master's Thesis
    9 Jun 2025 - 1 Aug 2025
    Work toward master's thesis in geology.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Approval of graduate committee.
  • COURSE TAUGHT
    Advanced Studies in Geology
    13 Jan 2025 - 2 May 2025
    Individual library, laboratory and/or field projects on facets of geology not covered by existing courses. Field trips may be required. Course previously offered as GEOL 5710.Offered for variable credit, 1-6 credit hours, maximum of 12 credit hours.Prerequisite(s): Consent of instructor.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    13 Jan 2025 - 2 May 2025
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Geology Colloquium
    13 Jan 2025 - 2 May 2025
    Discussion of selected topics in the geological sciences with emphasis on professional presentation practices. Offered for fixed credit, 1 credit hour, maximum of 4 credit hours.Prerequisite(s): Geology majors only.
  • COURSE TAUGHT
    Geology Colloquium
    13 Jan 2025 - 2 May 2025
    Discussion of selected topics in the geological sciences with emphasis on professional presentation practices.Offered for fixed 1 credit hour, maximum of 2 credit hours.Prerequisite(s): Graduate standing.
  • COURSE TAUGHT
    Master's Thesis
    13 Jan 2025 - 2 May 2025
    Work toward master's thesis in geology.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Approval of graduate committee.
  • COURSE TAUGHT
    Special Problems in Earth Science
    13 Jan 2025 - 2 May 2025
    Individually designed study projects involving assigned reading, library work, field work, laboratory work or a combination of these. Field trips may be required. Offered for variable credit, 1-3 credit hours, maximum of 9 credit hours.Prerequisite(s): Permission of instructor.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    19 Aug 2024 - 6 Dec 2024
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Master's Thesis
    19 Aug 2024 - 6 Dec 2024
    Work toward master's thesis in geology.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Approval of graduate committee.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    16 Jan 2024 - 3 May 2024
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Geology Colloquium
    16 Jan 2024 - 3 May 2024
    Discussion of selected topics in the geological sciences with emphasis on professional presentation practices.Offered for fixed 1 credit hour, maximum of 2 credit hours.Prerequisite(s): Graduate standing.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    21 Aug 2023 - 8 Dec 2023
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Hydrogeology
    21 Aug 2023 - 8 Dec 2023
    The water cycle and ground-water systems as well as general problems related to ground-water occurrence, quantity, quality and pollution. Field trip required.
  • COURSE TAUGHT
    Special Problems in Earth Science
    21 Aug 2023 - 8 Dec 2023
    Individually designed study projects involving assigned reading, library work, field work, laboratory work or a combination of these. Field trips may be required. Offered for variable credit, 1-3 credit hours, maximum of 9 credit hours.Prerequisite(s): Permission of instructor.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    12 Jun 2023 - 4 Aug 2023
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.
  • COURSE TAUGHT
    Master's Thesis
    12 Jun 2023 - 4 Aug 2023
    Work toward master's thesis in geology.Offered for variable credit, 1-6 credit hours, maximum of 6 credit hours.Prerequisite(s): Approval of graduate committee.
  • COURSE TAUGHT
    Special Problems in Earth Science
    12 Jun 2023 - 4 Aug 2023
    Individually designed study projects involving assigned reading, library work, field work, laboratory work or a combination of these. Field trips may be required. Offered for variable credit, 1-3 credit hours, maximum of 9 credit hours.Prerequisite(s): Permission of instructor.
  • COURSE TAUGHT
    Doctoral Dissertation Research
    17 Jan 2023 - 5 May 2023
    Work toward doctoral dissertation in Geology.Offered for variable credit, 1-12 credit hours, maximum of 60 credit hours.