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Racheal Johnsen
Racheal Johnsen
Verified email at unlv.edu
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Year
Humans thrived in South Africa through the Toba eruption about 74,000 years ago
EI Smith, Z Jacobs, R Johnsen, M Ren, EC Fisher, S Oestmo, J Wilkins, ...
Nature 555 (7697), 511, 2018
1062018
Intraplate volcanism at the edges of the C olorado P lateau sustained by a combination of triggered edge‐driven convection and shear‐driven upwelling
MD Ballmer, CP Conrad, EI Smith, R Johnsen
Geochemistry, Geophysics, Geosystems 16 (2), 366-379, 2015
472015
Lunar Crater volcanic field (Reveille and Pancake Ranges, Basin and Range Province, Nevada, USA)
GA Valentine, JA Cortés, E Widom, EI Smith, C Rasoazanamparany, ...
Geosphere 13 (2), 391-438, 2017
382017
Origin of chemical and isotopic heterogeneity in a mafic, monogenetic volcanic field: a case study of the Lunar Crater Volcanic Field, Nevada
C Rasoazanamparany, E Widom, GA Valentine, EI Smith, JA Cortés, ...
Chemical Geology 397, 76-93, 2015
352015
Intrinsic conditions of magma genesis at the Lunar Crater Volcanic Field (Nevada), and implications for internal plumbing and magma ascent
JA Cortés, EI Smith, GA Valentine, R Johnsen, C Rasoazanamparany, ...
American Mineralogist 100 (2-3), 396-413, 2015
232015
Subalkaline volcanism in the Black Rock Desert and Markagunt Plateau volcanic fields of south-central Utah
RL Johnsen, EI Smith, RF Biek
Utah Geological Association, 2010
232010
Volcanoes of the McCullough Range, southern Nevada
E Smith, D Honn, R Johnsen
Miocene tectonics of the Lake Mead region, central Basin and Range …, 2010
62010
Plumbing of Continental Basaltic Volcanoes from the Mantle to the Surface, 2: Geochemical Variations of the Pliocene to Recent Volcanic Products of Lunar Crater Volcanic Field …
JA Cortes, EI Smith, RL Johnsen, C Rasoazanamparany, GA Valentine, ...
AGU Fall Meeting Abstracts, 2011
22011
Dome eruption, collapse, and pyro clastic flows of a mid-Miocene volcanic section in the central McCullough Range, southern Nevada
R Johnsen, E Smith
Geological Society of America Abstracts with Programs 40 (1), 94, 2008
22008
EVIDENCE FOR DOME COLLAPSE AND COEVAL MAFIC-FELSIC VOLCANISM IN THE CENTRAL MCCULLOUGH RANGE, NEVADA
R Johnsen
Geological Society of America Abstracts with Programs, 39 (5), 35, 2007
2*2007
Volcanic centers of the northern McCullough Range, southern Nevada USA: A view of pre-extensional volcanism in the Colorado River extensional corridor
DK Honn, R Johnsen, EI Smith
AGU Spring Meeting Abstracts, 2007
22007
THE 2.7–2.1 MA TWIN PEAKS CALDERA: STRATIGRAPHY AND PETROGENESIS
R Johnsen, EI Smith, JD Walker
Delta 3, 6.1, 0
2*
The occurrence of Pliocene to Holocene subalkalic volcanism in an intra-plate setting within the eastern Great Basin: Black Rock Desert volcanic field, Utah, USA
RL Johnsen, EI Smith
AGU Fall Meeting Abstracts, 2009
12009
SILICIC VOLCANISM IN PLIOCENE AND QUATERNARY MAFIC VOLCANIC FIELDS IN UTAH, NEVADA AND CALIFORNIA
RL JOHNSEN
Geological Society of America Abstracts with Programs, 41 (6), 43, 2009
1*2009
Developing geological educational materials for BLM’s Sloan Canyon National Conservation Area: Presenting the Miocene volcanic history of the Northern McCullough Mountains …
D Honn, R Johnsen, EI Smith
Geological Society of America, Abstracts with Programs 40 (1), 90, 2008
12008
A new 3-dimensional view of the mid-Miocene volcanic and plutonic rocks of the River Mountains, southern Nevada
E Smith, R Johnsen, D Honn, R Brainard, R Coon
Geological Society of America, Abstracts with Programs 40 (1), 34, 2008
12008
Predictive Radiological Background Distributions from Geochemical Data
P Wasiolek, R Malchow, P Burnley, E Hausrath, K Marsac, D Haber, ...
Site-Directed Research and Development, 197, 2016
2016
Toward a Predictive Model for Background Radiation: Predicting Gamma Exposure Rates in the Twin Peaks Volcanic Field, Utah, US.
RL Johnsen, PC Burnley, R Malchow
The Geological Society of America 47 (7), 90, 2015
2015
Examining the Spatial Scale of Variations in Terrestrial Gamma-Ray Background Over Individual Bedrock Geologic Units.
P Burnley, A Fernandez, J Smith, A Goya, D Haber, R Johnsen, ...
The Geological Society of America 47 (7), 301, 2015
2015
Subalklaine Volcanism in the Eastern Basin and Range Province: Examples from the Miocene McCullough Range Volcanic Field and the Pliocene to Holocene Black Rock Desert Volcanic …
RL Johnsen
2014
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