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J. Michael Timmons
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Journal Article

Zircon (U-Th)/He thermochronology reveals pre-Great Unconformity paleotopography in the Grand Canyon region, USA: COMMENT Open Access

Karl E. Karlstrom, William R. Guenthner, Olivia G. Thurston, Matthew T. Heizler, Jason W. Ricketts, J. Michael Timmons
Journal: Geology
Published: 01 March 2022
Geology (2022) 50 (3): e543.
DOI: https://doi.org/10.1130/G49843C.1
View PDF for article title, Zircon (U-Th)/He thermochronology reveals pre-Great Unconformity paleotopography in the Grand Canyon region, USA: COMMENT
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Journal Article

Zircon (U-Th)/He thermochronology of Grand Canyon resolves 1250 Ma unroofing at the Great Unconformity and <20 Ma canyon carving Open Access

Olivia G. Thurston, William R. Guenthner, Karl E. Karlstrom, Jason W. Ricketts, Matthew T. Heizler, J. Michael Timmons
Journal: Geology
Published: 02 November 2021
Geology (2022) 50 (2): 222–226.
DOI: https://doi.org/10.1130/G48699.1
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View PDF for article title, Zircon (U-Th)/He thermochronology of Grand Canyon resolves 1250 Ma unroofing at the Great Unconformity and &lt;20 Ma canyon carving
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Journal Article

Tectonic controls on basement exhumation in the southern Rocky Mountains (United States): The power of combined zircon (U-Th)/He and K-feldspar 40 Ar/ 39 Ar thermochronology Available to Purchase

Jason W. Ricketts, Jacoup Roiz, Karl E. Karlstrom, Matthew T. Heizler, William R. Guenthner, J. Michael Timmons
Journal: Geology
Published: 14 June 2021
Geology (2021) 49 (10): 1187–1192.
DOI: https://doi.org/10.1130/G49141.1
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View PDF for article title, Tectonic controls on basement exhumation in the southern Rocky Mountains (United States): The power of combined zircon (U-Th)/He and K-feldspar 40 Ar/ 39 Ar thermochronology
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Book Chapter

Acknowledgments Open Access

Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(v)
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Book Chapter

Introduction to Grand Canyon geology Open Access

Author(s)
Karl E. Karlstrom, J. Michael Timmons, Laura J. Crossey
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(00)
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Book Chapter

Vishnu basement rocks of the Upper Granite Gorge: Continent formation 1.84 to 1.66 billion years ago Open Access

Author(s)
Karl E. Karlstrom, Bradley R. Ilg, David Hawkins, Michael L. Williams, Gregory Dumond, Kevin Mahan, Samuel A. Bowring
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(01)
View PDF for content titled, Vishnu basement rocks of the Upper Granite Gorge: Continent formation 1.84 to 1.66 billion years ago
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Book Chapter

The Grand Canyon Unkar Group: Mesoproterozoic basin formation in the continental interior during supercontinent assembly Open Access

Author(s)
J. Michael Timmons, John Bloch, Kathryn Fletcher, Karl E. Karlstrom, Matt Heizler, Laura J. Crossey
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(02)
View PDF for content titled, The Grand Canyon Unkar Group: Mesoproterozoic basin formation in the continental interior during supercontinent assembly
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Book Chapter

The Neoproterozoic Earth system revealed from the Chuar Group of Grand Canyon Open Access

Author(s)
Carol M. Dehler, Susannah M. Porter, J. Michael Timmons
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(03)
View PDF for content titled, The Neoproterozoic Earth system revealed from the Chuar Group of Grand Canyon
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Book Chapter

Many unconformities make one ‘Great Unconformity’ Open Access

Author(s)
Karl E. Karlstrom, J. Michael Timmons
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(04)
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Book Chapter

Geologic history and paleogeography of Paleozoic and early Mesozoic sedimentary rocks, eastern Grand Canyon, Arizona Open Access

Author(s)
Ronald C. Blakey, Larry T. Middleton
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(05)
View PDF for content titled, Geologic history and paleogeography of Paleozoic and early Mesozoic sedimentary rocks, eastern Grand Canyon, Arizona
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Book Chapter

Faulting and uplift in the Grand Cany on region Open Access

Author(s)
Karl E. Karlstrom, J. Michael Timmons
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(06)
View PDF for content titled, Faulting and uplift in the Grand Cany on region
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Book Chapter

The Laramide and post-Laramide uplift and erosional history of the eastern Grand Canyon: Evidence from apatite fission-track thermochronology Open Access

Author(s)
Shari A. Kelley, Karl E. Karlstrom
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(07)
View PDF for content titled, The Laramide and post-Laramide uplift and erosional history of the eastern Grand Canyon: Evidence from apatite fission-track thermochronology
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Book Chapter

A review of the geomorphology of eastern Grand Canyon Open Access

Author(s)
Joel L. Pederson
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(08)
View PDF for content titled, A review of the geomorphology of eastern Grand Canyon
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Book Chapter

Travertines and travertine springs in eastern Grand Canyon: What they tell us about groundwater, paleoclimate, and incision of Grand Canyon Open Access

Author(s)
Laura J. Crossey, Karl E. Karlstrom
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(09)
View PDF for content titled, Travertines and travertine springs in eastern Grand Canyon: What they tell us about groundwater, paleoclimate, and incision of Grand Canyon
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Book Chapter

Afterword Open Access

Author(s)
Karl E. Karlstrom, Laura J. Crossey, J. Michael Timmons
Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(10)
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Book Chapter

References Cited Open Access

Book: Grand Canyon Geology: Two Billion Years of Earth's History
Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/2012.2489(11)
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Book

Grand Canyon Geology: Two Billion Years of Earth's History

Publisher: Geological Society of America
Published: 01 November 2012
DOI: 10.1130/9780813724898
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Journal Article

Detrital zircon U-Pb geochronology of Paleozoic strata in the Grand Canyon, Arizona Open Access

George E. Gehrels, Ron Blakey, Karl E. Karlstrom, J. Michael Timmons, Bill Dickinson, Mark Pecha
Journal: Lithosphere
Publisher: GSW
Published: 01 June 2011
Lithosphere (2011) 3 (3): 183–200.
DOI: https://doi.org/10.1130/L121.1
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View PDF for article title, Detrital zircon U-Pb geochronology of Paleozoic strata in the Grand Canyon, Arizona
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Journal Article

Mudstone Petrology of the Mesoproterozoic Unkar Group, Grand Canyon, U.S.A.: Provenance, Weathering, and Sediment Transport on Intracratonic Rodinia Available to Purchase

John D. Bloch, J. Michael Timmons, Laura J. Crossey, George E. Gehrels, Karl E. Karlstrom
Published: 01 September 2006
Journal of Sedimentary Research (2006) 76 (9): 1106–1119.
DOI: https://doi.org/10.2110/jsr.2006.107
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View PDF for article title, Mudstone Petrology of the Mesoproterozoic Unkar Group, Grand Canyon, U.S.A.: Provenance, Weathering, and Sediment Transport on Intracratonic Rodinia
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Journal Article

Tectonic inferences from the ca. 1255–1100 Ma Unkar Group and Nankoweap Formation, Grand Canyon: Intracratonic deformation and basin formation during protracted Grenville orogenesis Available to Purchase

J. Michael Timmons, Karl E. Karlstrom, Matthew. T. Heizler, Samuel A. Bowring, George E. Gehrels, Laura J. Crossey
Journal: GSA Bulletin
Published: 01 November 2005
GSA Bulletin (2005) 117 (11-12): 1573–1595.
DOI: https://doi.org/10.1130/B25538.1
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View PDF for article title, Tectonic inferences from the ca. 1255–1100 Ma Unkar Group and Nankoweap Formation, Grand Canyon: Intracratonic deformation and basin formation during protracted Grenville orogenesis
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