Pat Cashman

LMR361

Phone: (775) 784-6924

E-mail: pcashmanunr.edu

Home page

Education:
Middlebury College , B.S. in Geology; University of Southern California , Ph.D.

My research applies structural techniques to solving tectonic problems, and currently focuses on two areas:

1. Evolution of the Sierra Nevada - Basin and Range transition zone: Jim Trexler and I have had several NSF grants to study the record in Neogene basin deposits. We have constrained the ages of basin initiation and exhumation, and documented syn- and post-depositional faulting in several basins; the results indicate more recent formation of the Sierran frontal fault system than has been recognized previously. One of my MS students and one of my PhD students are working on parts of this project. I am a co-P.I. on Jim Faulds ’s NSF grant for a related project; it is supporting additional graduate students.

2. Late Paleozoic deformation in north-central Nevada: My NSF grant (with Trexler, Snyder (BSU ) and Davydov (BSU)) funded this work. We have documented several significant, previously unrecognized, late Paleozoic orogenic events whose effects were formerly attributed to either the Antler orogeny or Mesozoic tectonism. We published a research paper on these results in 2003, two other papers are in press, and we will lead a field trip at the GSA Cordilleran – Rocky Mountain section meeting in 2004. One MS student and one PhD student from UNR are working on parts of this project. Trexler and I submitted a grant proposal to NSF in 2003 to continue this work; colleagues Davydov (BSU) and Taylor (UNLV) submitted collaborative proposals.

2003 Sponsored Research:

National Science Foundation grant EAR 9903418: “Extent, style and tectonic significance of Pennsylvanian deformation in the Great Basin : a test of late Paleozoic tectonic models for the western U.S. ”: $140,134 for two years (UNR portion), co-PIs are Jim Trexler (UNR), Walt Snyder ( Boise State University ) and Vladimir Davydov (BSU). Ended 6/30/03 .

National Science Foundation grant EAR 0124869 “ Neogene development of the northern Walker Lane ; an evolving transform plate boundary”; $272,576 for three years; P.I. is Jim Faulds (NBMG)

Papers since 1999:

1. Cole, J. C., and Cashman, P. H., 1999, Structural relationships of pre-Tertiary rocks in the Nevada Test Site region, southern Nevada : U.S. Geological Survey Professional Paper, v. 1607, 39 p.
2. Cashman, P. H ., Cole, J. C., and Trexler, J. H., Jr., 2000, Superposed fold-thrust events at the Nevada Test Site, in Lageson, D. R., Peters, S. G., and Lahren, M. M., eds., Great Basin and Sierra Nevada: Boulder, Colorado, Geological Society of America Field Guide 2, p. 337-354.
3. Cashman, P. H., and Fontaine, S. A., 2000, Strain partitioning in the northern Walker Lane , western Nevada and northeastern California : Tectonophysics, v. 326, p. 111-130.
4. Trexler, J. H., Jr., Cashman, P. H., Henry, C. D., Muntean, T. W., Schwartz, K., TenBrink, A., Faulds, J. E., Perlins, M., and Kelly, T. S., 2000, Neogene basins in western Nevada document tectonic history of the Sierra Nevada - Basin and Range transition zone for the last 12 Ma, in Lageson, D. R., Peters, S. G., and Lahren, M. M., eds., Great Basin and Sierra Nevada: Boulder, Colorado, Geological Society of America Field Guide 2, p. 97-116.
5. Trexler, J. H., Jr., Cashman, P. H., Cole, J. C., Snyder, W. S., Tosdal, R. M., and Davydov, V. I., 2003, Widespread Effects of Mid-Mississippian Deformation in the Great Basin of western North America: Geological Society of America Bulletin, v. 115, no. 10, p. 1278-1288.
6. Trexler, J. H. Jr., Cashman, P. H., Snyder, W. S., and Davydov, V. I., 2004, Upper Paleozoic tectonism in Nevada; timing, kinematics, and tectonic significance: Geological Society of America Bulletin, v. in press. Trexler, J.
7. H. Jr., Cashman, P. H., Snyder, W. S., and Davydov, V. I., 2004, The western margin of North America after the Antler orogeny: Mississippian through Late Permian history in the Basin and Range, Nevada, in Woods, S., ed., GSA Cordilleran Section Fieldtrip Guidebook: Denver, USGS.

Abstracts since 1999:

1. Cashman, P. H., Trexler, J. H., Jr., Henry, C. D., and Perkins, M. E., 1999, Deformation recorded in the Neogene Verdi basin, Sierra Nevada - Basin and Range transition, western Nevada (abst.): Geological Society of America Abstracts with Programs, v. 31, no. 7, p. A-116.
2. Trexler, J. H., Jr., Cashman, P. H., and Henry, C. D., 1999, A syntectonic Neogene basin in western Nevada: Geological Society of America Abstracts with Programs, v. 31.
3. Trexler, J. H., Jr., Snyder, W. S., and Cashman, P. H., 1999, Pennsylvanian deformation right under our noses all this time! (abst.): Geological Society of America Abstracts with Programs, v. 31, no. 4, p. A-59.
4. Snyder, W. S., Schiappa, T. A., Davydov, V. I., Trexler, J. H., Jr., and Cashman, P. H., 1999, Strathearn basin: Late Pennsylvanian - Early Permian tectonostratigraphic setting of eastern Nevada (abst.): Geological Society of America, Abstracts with Programs, v. 31, no. 4, p. A-57.
5. Cashman, P. H. , Trexler, J. H., Jr., Snyder, W. S., and Davydov, V. I., 2000, Geometry and kinematics of Late Pennsylvanian to Early Permian deformation at Carlin Canyon, central Nevada: Geological Society of America Abstracts with Programs, v. 32, no. 7, p. A-316.
6. Faulds, J. E., Henry, C. D., Garside, L. J., and Cashman, P. H., 2000, Kinematic evolution of the northern Walker Lane, western Nevada: in pursuit of constraints (abst.): Geological Society of America Abstracts with Programs.
7. Henry, C. D., Trexler, J. H., Jr., and Cashman, P. H., 2000, The Sierra Nevada - Basin And Range boundary near Reno , Nevada developed in two stages at ~12 and 3 Ma: Geological Society of America Abstracts with Programs, v. 32, no. 7, p. A-44.
8. Snyder, W. S., Trexler, J. H., Jr, Cashman, P. H., and Davydov, V. I., 2000, Tectonostratigraphic framework of the Upper Paleozoic continental margin of Nevada and southeastern California (abst.): Geological Society of Nevada Program with Abstracts, p. 76-77.
9. Cashman, P. H., Trexler, J. H., Jr., Perkins, M. E., and Kelly, T. S., 2002, Post-3Ma deformation along the Sierra Nevada - Basin and Range transition zone near Reno , Nevada (abst.): Geological Society of America Abstracts with Programs, v. 34, no. 5, p. A-100.
10. Snyder, W. S., Trexler, J. H. J., Davydov, V., I., Cashman, P., Schiappa, T. A., and Sweet, D., 2002, Upper Paleozoic Tectonostratigraphic Framework for the Western Margin of North America (extended abst.): AAPG Hedberg Research Conference-Late Paleozoic Tectonics and Hydrocarbon Systems of Western North America-The Greater
11. Ancestral Rocky Mountains , p. 58-61.
12. Trexler, J. H. Jr., Cashman, P. H., Kelly, T. S., and Perkins, M. E., 2002, Neogene sedimentary record of paleogeography along the eastern edge of the Sierra Nevada from 11 to 3Ma: Verdi basin, western Nevada (abst.): Geological Society of America Abstracts with Programs, v. 34, no. 5, p. A-44.
13. Cashman, P. H., Trexler, J. H., Jr., Muntean, T. W., Faulds, J. E., Louie, J. N., Oppliger, G., Abbott, R. E., and Clark, M., 2003, Neogene tectonic history of the Sierra Nevada - Basin and range transition zone at the latitude of Carson City, Nevada; geological and geophysical evidence (abst.): GSA Abstracts with Programs, v. 36, no. 6, p. 26.
14. Snyder, W. S., Schiappa, T. A., Trexler, J. H., Jr., Cashman, P., Davydov, V. I., and Sweet, D., 2003, Permo-Carboniferous tectonostratigraphic framework for Western North America:  Implications for global correlation (abst.): XVth International Congress on Carboniferous and Permian Stratigraphy, Utrecht Netherlands, Abstracts and Programs, p. 510-512.

Abstracts with students since 1999:  

1. Muntean, T. W., Cashman, P. H., Trexler, J. H., Jr., and Henry, C. D., 1999, Tectonic evolution of the Gardnerville sedimentary basin, western Nevada (abst.): Geological Society of America Abstracts with Programs, v. 31, no. 6, p. A-81.
2. Abbott, R. E., Cashman, P. H., Trexler, J. H., Jr., and Louie, J. N., 2000, Gravity survey constraints on the timing and style of extension of the Tertiary Gardnerville basin, western Nevada (abst.): Geological Society of America Abstracts with Programs, v. 32, no. 7, p. A-508.
3. Muntean, T. W., Cashman, P. H., and Trexler, J. H., Jr., 2000, Tectonic evolution of the Neogene Sunrise Pass Formation, western Nevada (abst.): Geological Society of America Abstracts with Programs, v. 32, no. 7, p. A-44.
4. TenBrink, A., Cashman, P. H., and Trexler, J. H., Jr, 2000, Neogene depositional and deformational history of Warm Springs Valley, northern Walker Lane (abst.): Geological Society of America Cordilleran Section Abstracts with Programs, v. 32, no. 6, p. A-71.
5. TenBrink, A. L., Cashman, P. H., and Trexler, J. H., Jr., 2000, Folded Neogene deposits in the northern Walker Lane, western Nevada (abs.): Geological Society of America Abstracts with Programs, v. 32, no. 7, p. A167-168.
6. TenBrink, A., Cashman, P. H., Trexler, J. H., Jr., Louie, J. N., and Smith, S., 2002, Active tectonism since 8Ma in the Sierra Nevada - Basin and Range transition zone, Lassen Co., CA (abst.): Geological Society of America Abstracts with Programs, v. 34, no. 5, p. A-100.
7. Mass, K. B., Cashman, P. H., Trexler, J. H., Jr., Park, H., and Perkins, M. E., 2003, Deformation history in Neogene sediments of Honey Lake basin, northern Walker Lane, Lassen County, California (abst.): GSA Abstracts with Programs, v. 36, no. 6, p. 26.
8. McHugh, J. C., Cashman, P. H., Trexler, J. H., Jr., and Taylor, W. J., 2003, Late Paleozoic folding and thrust faulting in the northern Hot Creek Range, Nye County, Nevada (abst.): GSA Abstracts with Programs, v. 36, no. 6, p. 340.