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Journal Article

Simultaneous Middle Pleistocene eruption of three widespread tholeiitic basalts in northern California (USA): Insights into crustal magma transport in an actively extending back arc Available to Purchase

Drew T. Downs, Duane E. Champion, Patrick Muffler, Robert L. Christiansen, Michael A. Clynne, Andrew T. Calvert
Journal: Geology
Published: 19 August 2020
Geology (2020) 48 (12): 1216–1220.
DOI: https://doi.org/10.1130/G48076.1
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Journal Article

The remarkable volcanism of Shastina, a stratocone segment of Mount Shasta, California Open Access

Robert L. Christiansen, Andrew T. Calvert, Duane E. Champion, Cynthia A. Gardner, Judith E. Fierstein, Jorge A. Vazquez
Journal: Geosphere
Published: 10 August 2020
Geosphere (2020) 16 (5): 1153–1178.
DOI: https://doi.org/10.1130/GES02080.1
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View PDF for article title, The remarkable volcanism of Shastina, a stratocone segment of Mount Shasta, California
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Journal Article

The timing and compositional evolution of volcanism within northern Harrat Rahat, Kingdom of Saudi Arabia Available to Purchase

Mark E. Stelten, Drew T. Downs, Duane E. Champion, Hannah R. Dietterich, Andrew T. Calvert, Thomas W. Sisson, Gail A. Mahood, Hani Zahran
Journal: GSA Bulletin
Published: 04 November 2019
GSA Bulletin (2020) 132 (7-8): 1381–1403.
DOI: https://doi.org/10.1130/B35337.1
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View PDF for article title, The timing and compositional evolution of volcanism within northern Harrat Rahat, Kingdom of Saudi Arabia
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Journal Article

Eruption age and duration of the ∼9 km 3 Burney Mountain dacite dome complex, northern California, USA Available to Purchase

Drew T. Downs, Michael A. Clynne, Duane E. Champion, L.J. Patrick Muffler
Journal: GSA Bulletin
Published: 30 October 2019
GSA Bulletin (2020) 132 (5-6): 1150–1164.
DOI: https://doi.org/10.1130/B35240.1
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View PDF for article title, Eruption age and duration of the ∼9 km 3 Burney Mountain dacite dome complex, northern California, USA
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Journal Article

Volcanic stratigraphy and age model of the Kimama deep borehole (Project Hotspot): Evidence for 5.8 million years of continuous basalt volcanism, central Snake River Plain, Idaho Open Access

Katherine E. Potter, Duane E. Champion, Robert A. Duncan, John W. Shervais
Journal: Geosphere
Published: 19 March 2019
Geosphere (2019) 15 (3): 736–758.
DOI: https://doi.org/10.1130/GES01679.1
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View PDF for article title, Volcanic stratigraphy and age model of the Kimama deep borehole (Project Hotspot): Evidence for 5.8 million years of continuous basalt volcanism, central Snake River Plain, Idaho
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Journal Article

Volcanic history of the northernmost part of the Harrat Rahat volcanic field, Saudi Arabia Open Access

Drew T. Downs, Mark E. Stelten, Duane E. Champion, Hannah R. Dietterich, Zohair Nawab, Hani Zahran, Khalid Hassan, Jamal Shawali
Journal: Geosphere
Published: 29 March 2018
Geosphere (2018) 14 (3): 1253–1282.
DOI: https://doi.org/10.1130/GES01625.1
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View PDF for article title, Volcanic history of the northernmost part of the Harrat Rahat volcanic field, Saudi Arabia
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Includes: Supplemental Content
Journal Article

Holocene volcanism of the upper McKenzie River catchment, central Oregon Cascades, USA Open Access

Natalia I. Deligne, Richard M. Conrey, Katharine V. Cashman, Duane E. Champion, William H. Amidon
Journal: GSA Bulletin
Published: 01 May 2017
GSA Bulletin (2017) 129 (5-6): 768.
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Journal Article

Holocene volcanism of the upper McKenzie River catchment, central Oregon Cascades, USA Available to Purchase

Natalia I. Deligne, Richard M. Conrey, Katharine V. Cashman, Duane E. Champion, William H. Amidon
Journal: GSA Bulletin
Published: 01 November 2016
GSA Bulletin (2016) 128 (11-12): 1618–1635.
DOI: https://doi.org/10.1130/B31405.1
View PDF for article title, Holocene volcanism of the upper McKenzie River catchment, central Oregon Cascades, USA
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Journal Article

Geochemical and paleomagnetic variations in basalts from the Wendell Regional Aquifer Systems Analysis (RASA) drill core: Evidence for magma recharge and assimilation–fractional crystallization from the central Snake River Plain, Idaho Open Access

Marlon M. Jean, John W. Shervais, Duane E. Champion, Scott K. Vetter
Journal: Geosphere
Published: 01 October 2013
Geosphere (2013) 9 (5): 1319–1335.
DOI: https://doi.org/10.1130/GES00914.1
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View PDF for article title, Geochemical and paleomagnetic variations in basalts from the Wendell Regional Aquifer Systems Analysis (RASA) drill core: Evidence for magma recharge and assimilation–fractional crystallization from the central Snake River Plain, Idaho
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Journal Article

Owyhee River intracanyon lava flows: Does the river give a dam? Available to Purchase

Lisa L. Ely, Cooper C. Brossy, P. Kyle House, Elizabeth B. Safran, Jim E. O’Connor, Duane E. Champion, Cassandra R. Fenton, Ninad R. Bondre, Caitlin A. Orem, Gordon E. Grant, Christopher D. Henry, Brent D. Turrin
Journal: GSA Bulletin
Published: 01 November 2012
GSA Bulletin (2012) 124 (11-12): 1667–1687.
DOI: https://doi.org/10.1130/B30574.1
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Journal Article

Kulanaokuaiki Tephra (ca. A.D. 400–1000): Newly recognized evidence for highly explosive eruptions at Kīlauea Volcano, Hawai‘i Available to Purchase

Richard S. Fiske, Timothy R. Rose, Donald A. Swanson, Duane E. Champion, John P. McGeehin
Journal: GSA Bulletin
Published: 01 May 2009
GSA Bulletin (2009) 121 (5-6): 712–728.
DOI: https://doi.org/10.1130/B26327.1
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View PDF for article title, Kulanaokuaiki Tephra (ca. A.D. 400–1000): Newly recognized evidence for highly explosive eruptions at Kīlauea Volcano, Hawai‘i
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Book Chapter

The post-Mazama northwest rift zone eruption at Newberry Volcano, Oregon Available to Purchase

Author(s)
Daniele Mckay, Julie M. Donnelly-Nolan, Robert A. Jensen, Duane E. Champion
Book: Volcanoes to Vineyards: Geologic Field Trips through the Dynamic Landscape of the Pacific Northwest
Series: GSA Field Guide
Publisher: Geological Society of America
Published: 01 January 2009
DOI: 10.1130/2009.fld015(05)
EISBN: 9780813756158
Abstract
View PDF for content titled, The post-Mazama northwest rift zone eruption at Newberry Volcano, Oregon
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Abstract The northwest rift zone (NWRZ) eruption took place at Newberry Volcano ~7000 years ago after the volcano was mantled by tephra from the catastrophic eruption that destroyed Mount Mazama and produced the Crater Lake caldera. The NWRZ eruption produced multiple lava flows from a variety of vents including cinder cones, spatter vents, and fissures, possibly in more than one episode. Eruptive behaviors ranged from energetic Strombolian, which produced significant tephra plumes, to low-energy Hawaiian-style. This paper summarizes and in part reinterprets what is known about the eruption and presents information from new and ongoing studies. Total distance spanned by the eruption is 32 km north-south. The northernmost flow of the NWRZ blocked the Deschutes River upstream from the city of Bend, Oregon, and changed the course of the river. Renewed mafic activity in the region, particularly eruptions such as the NWRZ with tephra plumes and multiple lava flows from many vents, would have significant impacts for the residents of Bend and other central Oregon communities.

Journal Article

Revised ages for tuffs of the Yellowstone Plateau volcanic field: Assignment of the Huckleberry Ridge Tuff to a new geomagnetic polarity event Available to Purchase

Marvin A. Lanphere, Duane E. Champion, Robert L. Christiansen, Glen A. Izett, John D. Obradovich
Journal: GSA Bulletin
Published: 01 May 2002
GSA Bulletin (2002) 114 (5): 559–568.
DOI: https://doi.org/10.1130/0016-7606(2002)114<0559:RAFTOT>2.0.CO;2
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View PDF for article title, Revised ages for tuffs of the Yellowstone Plateau volcanic field: Assignment of the Huckleberry Ridge Tuff to a new geomagnetic polarity event
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Book Chapter

Paleoenvironments of sedimentary interbeds in the Pliocene and Quaternary Big Lost Trough, eastern Snake River Plain, Idaho Available to Purchase

Author(s)
Erick A. Bestland, Paul Karl Link, Marvin A. Lanphere, Duane E. Champion
Abstract
View PDF for content titled, Paleoenvironments of sedimentary interbeds in the Pliocene and Quaternary Big Lost Trough, eastern Snake River Plain, Idaho
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Book Chapter

Tension cracks, eruptive fissures, dikes, and faults related to late Pleistocene-Holocene basaltic volcanism and implications for the distribution of hydraulic conductivity in the eastern Snake River Plain, Idaho Available to Purchase

Author(s)
Mel A. Kuntz, Steven R. Anderson, Duane E. Champion, Marvin A. Lanphere, Daniel J. Grunwald
Abstract
View PDF for content titled, Tension cracks, eruptive fissures, dikes, and faults related to late Pleistocene-Holocene basaltic volcanism and implications for the distribution of hydraulic conductivity in the eastern Snake River Plain, Idaho
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Book Chapter

Accumulation and subsidence of the Pleistocene basaltic lava flows of the eastern Snake River Plain, Idaho Available to Purchase

Author(s)
Duane E. Champion, Marvin A. Lanphere, Steven R. Anderson, Mel A. Kuntz
Abstract
View PDF for content titled, Accumulation and subsidence of the Pleistocene basaltic lava flows of the eastern Snake River Plain, Idaho
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Journal Article

Revised age of the Rockland tephra, northern California: Implications for climate and stratigraphic reconstructions in the western United States: Reply: REPLY Available to Purchase

Marvin A. Lanphere, Duane E. Champion, Michael A. Clynne, L. J. Patrick Muffler
Journal: Geology
Published: 01 March 2000
Geology (2000) 28 (3): 287.
DOI: https://doi.org/10.1130/0091-7613(2000)28<287:RAOTRT>2.0.CO;2
View PDF for article title, Revised age of the Rockland tephra, northern California: Implications for climate and stratigraphic reconstructions in the western United States: Reply: REPLY
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Journal Article

Revised age of the Rockland tephra, northern California: Implications for climate and stratigraphic reconstructionsin the western United States Available to Purchase

Marvin A. Lanphere, Duane E. Champion, Michael A. Clynne, L. J. Patrick Muffler
Journal: Geology
Published: 01 February 1999
Geology (1999) 27 (2): 135–138.
DOI: https://doi.org/10.1130/0091-7613(1999)027<0135:RAOTRT>2.3.CO;2
View PDF for article title, Revised age of the Rockland tephra, northern California: Implications for climate and stratigraphic reconstructionsin the western United States
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Journal Article

Late Quaternary slip rate and seismic hazards of the West Klamath Lake fault zone near Crater Lake, Oregon Cascades Available to Purchase

Charles R. Bacon, Marvin A. Lanphere, Duane E. Champion
Journal: Geology
Published: 01 January 1999
Geology (1999) 27 (1): 43–46.
DOI: https://doi.org/10.1130/0091-7613(1999)027<0043:LQSRAS>2.3.CO;2
View PDF for article title, Late Quaternary slip rate and seismic hazards of the West Klamath Lake fault zone near Crater Lake, Oregon Cascades
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Journal Article

Age of Lassen Peak, California, and implications for the ages of late Pleistocene glaciations in the southern Cascade Range Available to Purchase

Brent D. Turrin, Robert L. Christiansen, Michael A. Clynne, Duane E. Champion, Wendy J. Gerstel, L. J. Patrick Muffler, Deborah A. Trimble
Journal: GSA Bulletin
Published: 01 July 1998
GSA Bulletin (1998) 110 (7): 931–945.
DOI: https://doi.org/10.1130/0016-7606(1998)110<0931:AOLPCA>2.3.CO;2
View PDF for article title, Age of Lassen Peak, California, and implications for the ages of late Pleistocene glaciations in the southern Cascade Range
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