Sean Patrick Long
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Sean Patrick Long

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Professor of Earth Science
School of the Environment
Washington State University


Contact information:                   
    Office:    1155 Webster
    Phone:    (509)
335-8868                                             
    Email:     [email protected]
    Mailing address:
      
School of the Environment
       Washington State University
       PO Box 642812
       Pullman WA 99164-2812


Research interests:
My research focuses on understanding the structural evolution of contractional and extensional mountain belts, including the Himalayas, the Andes, the North American Cordillera, and the Basin and Range Province. I integrate mapping-based field data with a diverse suite of quantitative datasets, including geochronology, thermochronometry, metamorphic temperatures and pressures, microstructural analyses, regional tectonic reconstructions, and balanced cross sections. Much of my recent research involves field-based evaluations of the predictions of models for the dynamics of mountain belts. Please see my research page for more details.

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New Stuff!  (updated January, 2025)


Congratulations to PhD advisee Aurora Rosenberger, who was awarded an AGeS (Advancing Geochronology Science, Spaces, Systems) grant in 2024 for her research in the Northern Snake Range in Nevada!

Congratulations to PhD advisee Nolan Blackford, who just published the final paper of his PhD research in Tectonics!     click here for pdf

Congratulations to PhD advisee Andrea Richardson, who just published the first paper of her PhD research in the Journal of Structural Geology!   click here for pdf

Newly funded NSF Petrology and Geochemisty grant (2024-2026) with Johannes Haemmerli and Jeffrey Vervoort (Washington State University)!: "Does deformation lead to misinformation? How much can granitic rocks be deformed before accessory minerals are geochemically disturbed?"




New publications from Cordilleran and Basin and Range research:

Long, S.P., Blackford, N.R., Lee, J., and Soignard, E., 2024, Crustal thermal architecture, structural reconstructions, field relationships and geophysical data rule out deep structural burial of the footwall of the Northern Snake Range metamorphic core complex (Nevada, USA): Tectonics, v. 43, e2024TC008368, 48 p., doi: 10.1029/2024TC008368     click here for pdf

Blackford, N.R., Long, S.P., Lee, J., Larson, K.P., Seward, G., Stevens, J.L., and Al Harthi, H., 2024, Relating quartz crystallographic preferred orientation intensity to finite strain magnitude in the Northern Snake Range metamorphic core complex, Nevada: a new tool for characterizing strain patterns in ductilely sheared rocks: Tectonics, v. 43, e2023TC008166, doi: 10.1029/2023TC008166     click here for pdf

Richardson, A.E., Long, S.P., Barba, W.K., and McKay, M.P., 2024, Strain and kinematics within the Salmon River suture zone and western Idaho shear zone, Idaho, USA: Exploring the contribution of ductile stretching to mass transfer and exhumation in fold-thrust and transpressional systems: Journal of Structural Geology, v. 186, 105216, 32 p., doi: 10.1016/j.jsg.2024.105216     click here for pdf

Long, S.P., 2023, Westward underthrusting of thick North American crust: the dominant thickening process that built the Cordilleran orogenic plateau: Geology: published online 9-20-23, doi: 10.1130/G51339.1.     click here for pdf

Long, S.P., Lee, J., and Blackford, N.R., 2023, Extreme ductile thinning of Cambrian marbles in the Northern Snake Range metamorphic core complex, Nevada, USA: implications for extension magnitude and structural evolution: Journal of Structural Geology, v. 173, 104912, 25 p., doi: 10.1016/j.jsg.2023.     click here for pdf

Long, S.P., Barba, W.K., McKay, M.P., and Soignard, E., 2023, Thermal architecture of the Salmon River suture zone, Idaho, USA: Implications for the structural evolution of a ductile accretionary complex during arc-continent collision: Geosphere, v. 19, no. 4, p. 1103-1127, doi: 10.1130/GES02621.1.     click here for pdf

New publications from Himalayan research:

Kohn, M.J., Long, S.P., and Harrison, T.M., 2024, Himalayan leucogranites: a minimal role in deformation: Elements, v. 20, p. 381-387, doi: 10.2138/gselements.20.6.381     click here for pdf

New publications from Andean research:

Calle, A.Z., Horton, B.K., Garcia, R., Anderson, R.B., Stockli, D.F., Flaig, P.P., and Long, S.P., 2023, Sediment dispersal and basin evolution during contrasting tectonic regimes along the western Gondwanan margin in the central Andes: Journal of South American Earth Sciences, v. 125, 104286, 19 p., doi: 10.1016/j.jsames.2023.104286.     click here for pdf

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Pictures from Fall, 2023 course field trip to the Northern Snake Range, Nevada:

In September, 2023, collaborator Jeffrey Lee and I led 10 WSU graduate and undergraduate students and 6 Colorado School of Mines students on a field trip to the Northern Snake Range metamorphic core complex in Nevada. Here's a picture of our group at the neck of a house-sized dolomite boudin, and a picture of the students standing on the famous Northern Snake Range decollement.

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Picture from Summer, 2023 field work in Ladakh, India:

In July-August, 2023, I went with WSU PhD student Adelie Ionescu and professor Matt Kohn from Boise State University to perform field work in the Northwestern Indian Himalaya, in the Tso Morari region of Ladakh and further to the southwest in Himachal Pradesh. Here's a picture of Adelie and I, with Cambrian sedimentary rocks of the Tethyan Himalayan sequence behind us.

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Picture from 2019 GSA annual meeting in Phoenix

In September, 2019, five students from my research group (from left to right: Russell DiFiori, Ryan Anderson, Nolan Blackford, Jesslyn Starnes, and Kimberly Kramer) traveled to the GSA annual meeting in Phoenix to present their research.

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Pictures from Summer, 2018 field work in Ladakh, India:

In July-August, 2018, Matt Kohn from BSU, Matt's graduate student Buchanan Kerswell, and I performed field work in the Tso Morari region of Ladakh in northwestern India. Here are a couple of pictures, including me at the second-highest road pass in the world, at the three of us at Tso Morari, a beautiful high-elevation lake.

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Picture from Fall, 2016 Bhutan field work:

In Fall, 2016, two of my graduate students, Laura Pianowski and Jesslyn Starnes accompanied me, collaborator Stacia Gordon, and collaborator Robert Miller, on a field expedition to Bhutan. This picture shows Laura (left) and Jesslyn (right) in their kiras, the traditional Bhutanese female clothing. Behind them is Bhutan's famous Takstang monastery.

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Check out this picture!!!

In March, 2012, while mapping in southeast Bhutan, by chance Nadine McQuarrie (center), Tobgay (right) and myself (left) happened to meet his majesty Jigme Khesar Namgyal Wangchuk, the 5th king of Bhutan, and queen Jetsun Pema. This picture was taken that evening at their camp.

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