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 | 106 | 2018 |
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 | 47 | 2015 |
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 | 38 | 2017 |
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 | 35 | 2015 |
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 | 23 | 2015 |
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 | 23 | 2010 |
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 | 6 | 2010 |
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 | 2 | 2011 |
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 | 2 | 2008 |
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 | 2 | 2007 |
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 | 1 | 2009 |
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 | 1 | 2008 |
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 | 1 | 2008 |
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 |