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all geography including DSDP/ODP Sites and Legs
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Altiplano (1)
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Central America
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Guatemala
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Santiaguito (1)
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Green River basin (2)
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North America
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stable isotopes
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Pb-206/Pb-204 (1)
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Re-187/Os-188 (1)
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metals
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actinides
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thorium
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Th-232/Th-230 (1)
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alkali metals
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potassium (1)
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alkaline earth metals
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beryllium
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Be-10 (2)
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strontium
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Sr-87/Sr-86 (1)
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aluminum
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Al-26 (1)
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lead
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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platinum group
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osmium
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Os-188/Os-187 (1)
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Re-187/Os-188 (1)
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rhenium
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Re-187/Os-188 (1)
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noble gases
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argon
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helium
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fossils
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Invertebrata
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Wilkins Peak Member (1)
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Mesozoic
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Paleozoic
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framework silicates
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alkali feldspar
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sanidine (7)
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orthosilicates
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nesosilicates
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zircon group
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zircon (4)
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sheet silicates
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Primary terms
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carbon
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Eocene
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Green River Formation (3)
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lower Eocene
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Willwood Formation (1)
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Wilkins Peak Member (1)
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Central America
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Guatemala
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chemical analysis (1)
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igneous rocks
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volcanic rocks
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pyroclastics
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Invertebrata
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Mollusca
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isotopes
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Ar-40/Ar-39 (1)
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Be-10 (2)
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C-14 (2)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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Re-187/Os-188 (1)
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Th-232/Th-230 (1)
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stable isotopes
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Ar-40/Ar-39 (1)
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C-13/C-12 (1)
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He-3 (1)
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Os-188/Os-187 (1)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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Re-187/Os-188 (1)
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Sr-87/Sr-86 (1)
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lava (4)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Albian
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upper Albian (1)
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Upper Cretaceous
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Bridge Creek Limestone Member (1)
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Cenomanian
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upper Cenomanian (1)
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Gallup Sandstone (1)
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Greenhorn Limestone (1)
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Niobrara Formation (1)
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Turonian
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lower Turonian (1)
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-
-
-
-
metals
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actinides
-
thorium
-
Th-232/Th-230 (1)
-
-
-
alkali metals
-
potassium (1)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (2)
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-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
aluminum
-
Al-26 (1)
-
-
lead
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
platinum group
-
osmium
-
Os-188/Os-187 (1)
-
Re-187/Os-188 (1)
-
-
-
rhenium
-
Re-187/Os-188 (1)
-
-
-
metamorphic rocks (1)
-
noble gases
-
argon
-
Ar-40/Ar-39 (1)
-
-
helium
-
He-3 (1)
-
-
-
North America
-
North American Cordillera (3)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
Absaroka Range (1)
-
-
-
Western Interior
-
Western Interior Seaway (1)
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paleoclimatology (5)
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paleogeography (3)
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paleomagnetism (3)
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Paleozoic
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sea-level changes (1)
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South America
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United States
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Colorado
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Denver Basin (2)
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Idaho
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Idaho Batholith (1)
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Montana (2)
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U. S. Rocky Mountains
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Brad S. Singer
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Journal Article
Pleistocene to recent evolution of Mocho-Choshuenco volcano during growth and retreat of the Patagonian Ice Sheet
Pablo Moreno-Yaeger, Brad S. Singer, Benjamin R. Edwards, Brian R. Jicha, William O. Nachlas, Mark D. Kurz, Rachel E. Breunig, Ivo Fustos-Toribio, Daniel Vásquez Antipán, Ella Piergrossi
Publisher: Geological Society of America
Published: 07 June 2024
GSA Bulletin (2024)
Journal Article
Astronomical and tectonic influences on climate and deposition revealed through radioisotopic geochronology and Bayesian age-depth modeling of the early Eocene Green River Formation, Wyoming, USA
Benjamin T. Bruck, Brad S. Singer, Mark D. Schmitz, Alan R. Carroll, Stephen Meyers, Andrew P. Walters, Brian R. Jicha
Publisher: Geological Society of America
Published: 16 March 2023
GSA Bulletin (2023) 135 (11-12): 3173–3182.
Journal Article
Geochronology of late Albian–Cenomanian strata in the U.S. Western Interior
Brad S. Singer, Brian R. Jicha, David Sawyer, Ireneusz Walaszczyk, Robert Buchwaldt, Jorg Mutterlose
Publisher: Geological Society of America
Published: 10 December 2020
GSA Bulletin (2021) 133 (7-8): 1665–1678.
Journal Article
Regional chronostratigraphic synthesis of the Cenomanian-Turonian Oceanic Anoxic Event 2 (OAE2) interval, Western Interior Basin (USA): New Re-Os chemostratigraphy and 40 Ar/ 39 Ar geochronology
Publisher: Geological Society of America
Published: 13 October 2020
GSA Bulletin (2021) 133 (5-6): 1090–1104.
Journal Article
Facies interpretation and geochronology of diverse Eocene floras and faunas, northwest Chubut Province, Patagonia, Argentina
Justin Gosses, Alan R. Carroll, Benjamin T. Bruck, Brad S. Singer, Brian R. Jicha, Eugenio Aragón, Andrew P. Walters, Peter Wilf
Publisher: Geological Society of America
Published: 04 August 2020
GSA Bulletin (2021) 133 (3-4): 740–752.
Journal Article
Interpreting and reporting 40 Ar/ 39 Ar geochronologic data
Allen J. Schaen, Brian R. Jicha, Kip V. Hodges, Pieter Vermeesch, Mark E. Stelten, Cameron M. Mercer, David Phillips, Tiffany A. Rivera, Fred Jourdan, Erin L. Matchan, Sidney R. Hemming, Leah E. Morgan, Simon P. Kelley, William S. Cassata, Matt T. Heizler, Paulo M. Vasconcelos, Jeff A. Benowitz, Anthony A.P. Koppers, Darren F. Mark, Elizabeth M. Niespolo, Courtney J. Sprain, Willis E. Hames, Klaudia F. Kuiper, Brent D. Turrin, Paul R. Renne, Jake Ross, Sebastien Nomade, Hervé Guillou, Laura E. Webb, Barbara A. Cohen, Andrew T. Calvert, Nancy Joyce, Morgan Ganerød, Jan Wijbrans, Osamu Ishizuka, Huaiyu He, Adán Ramirez, Jörg A. Pfänder, Margarita Lopez-Martínez, Huaning Qiu, Brad S. Singer
Publisher: Geological Society of America
Published: 01 July 2020
GSA Bulletin (2021) 133 (3-4): 461–487.
Journal Article
Has Earth ever been ice-free? Implications for glacio-eustasy in the Cretaceous greenhouse age using high-resolution sequence stratigraphy
Publisher: Geological Society of America
Published: 08 June 2020
GSA Bulletin (2021) 133 (1-2): 243–252.
Journal Article
Accelerating exhumation in the Eocene North American Cordilleran hinterland: Implications from detrital zircon (U-Th)/(He-Pb) double dating
Andrew S. Canada, Elizabeth J. Cassel, Daniel F. Stockli, M. Elliot Smith, Brian R. Jicha, Brad S. Singer
Publisher: Geological Society of America
Published: 16 May 2019
GSA Bulletin (2020) 132 (1-2): 198–214.
Journal Article
Early Holocene collapse of Volcán Parinacota, central Andes, Chile: Volcanological and paleohydrological consequences
Publisher: Geological Society of America
Published: 01 November 2015
GSA Bulletin (2015) 127 (11-12): 1681–1688.
Journal Article
Integrating 40 Ar/ 39 Ar, U-Pb, and astronomical clocks in the Cretaceous Niobrara Formation, Western Interior Basin, USA
Bradley B. Sageman, Brad S. Singer, Stephen R. Meyers, Sarah E. Siewert, Ireneusz Walaszczyk, Daniel J. Condon, Brian R. Jicha, John D. Obradovich, David A. Sawyer
Publisher: Geological Society of America
Published: 01 July 2014
GSA Bulletin (2014) 126 (7-8): 956–973.
Journal Article
Testing the astronomical time scale for oceanic anoxic event 2, and its extension into Cenomanian strata of the Western Interior Basin (USA)
Publisher: Geological Society of America
Published: 01 July 2014
GSA Bulletin (2014) 126 (7-8): 974–989.
Journal Article
Geology and 40 Ar/ 39 Ar geochronology of the medium- to high-K Tanaga volcanic cluster, western Aleutians
Publisher: Geological Society of America
Published: 01 May 2012
GSA Bulletin (2012) 124 (5-6): 842–856.
Journal Article
40 Ar/ 39 Ar chronostratigraphy of Altiplano-Puna volcanic complex ignimbrites reveals the development of a major magmatic province
Morgan J. Salisbury, Brian R. Jicha, Shanaka L. de Silva, Brad S. Singer, Néstor C. Jiménez, Michael H. Ort
Publisher: Geological Society of America
Published: 01 May 2011
GSA Bulletin (2011) 123 (5-6): 821–840.
Journal Article
Paleogeographic reconstruction of the Eocene Idaho River, North American Cordillera
Lauren M. Chetel, Susanne U. Janecke, Alan R. Carroll, Brian L. Beard, Clark M. Johnson, Brad S. Singer
Publisher: Geological Society of America
Published: 01 January 2011
GSA Bulletin (2011) 123 (1-2): 71–88.
Journal Article
40 Ar/ 39 Ar and paleomagnetic constraints on the evolution of Volcán de Santa María, Guatemala
Publisher: Geological Society of America
Published: 01 May 2010
GSA Bulletin (2010) 122 (5-6): 757–771.
Journal Article
Timing of deformation and exhumation in the western Idaho shear zone, McCall, Idaho
Publisher: Geological Society of America
Published: 01 September 2008
GSA Bulletin (2008) 120 (9-10): 1119–1133.
Journal Article
Eruptive history, geochronology, and magmatic evolution of the Puyehue-Cordón Caulle volcanic complex, Chile
Brad S. Singer, Brian R. Jicha, Melissa A. Harper, José Antonio Naranjo, Luis E. Lara, Hugo Moreno-Roa
Publisher: Geological Society of America
Published: 01 May 2008
GSA Bulletin (2008) 120 (5-6): 599–618.
Journal Article
Synoptic reconstruction of a major ancient lake system: Eocene Green River Formation, western United States
Publisher: Geological Society of America
Published: 01 January 2008
GSA Bulletin (2008) 120 (1-2): 54–84.
Journal Article
Volcano evolution and eruptive flux on the thick crust of the Andean Central Volcanic Zone: 40 Ar/ 39 Ar constraints from Volcán Parinacota, Chile
Publisher: Geological Society of America
Published: 01 March 2007
GSA Bulletin (2007) 119 (3-4): 343–362.
Journal Article
Volcanic history and magmatic evolution of Seguam Island, Aleutian Island arc, Alaska
Publisher: Geological Society of America
Published: 01 July 2006
GSA Bulletin (2006) 118 (7-8): 805–822.
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