BEN CLAUSEN
Geology

WORK EXPERIENCE

• Assistant/Senior Research Scientist, 1987-present
  • Geoscience Research Institute, Loma Linda University, Loma Linda, CA
• Adjunct Assistant/Associate Professor, 1990-present
  • Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA
  • classes — structural geology, igneous and metamorphic petrology, isotope geochemistry
• Visiting scientist, 2001-2002
  • Radiocarbon Laboratory, University of California, Riverside
• Technical assistant for seismic data processing, summer 1974
  • Amoco Oil Company, Houston, TX

EDUCATION

• M.S., Geology, 1983 — Loma Linda University, Riverside, CA
  • Thesis (pdf, 4MB) -- Stratigraphy and Structure of the Miocene "Esmeralda" Formation in Stewart Valley, Mineral County, Nevada
  • Plate 1 (pdf, 706kb) -- Geologic Map of Stewart Valley, Mineral and Nye Counties, Nevada
  • Plate 2 (pdf, 625kb) -- Bedrock Geologic Map of Stewart Valley, Mineral and Nye Counties, Nevada
  • Plate 3 (pdf, 85kb) -- Structure Cross Sections of Stewart Valley, Mineral and Nye Counties, Nevada
• Additional course work taken at:
  • University of California, Riverside — physical geology, stratigraphy and sedimentology, petrology / optical mineralogy, advanced petrogenesis, GIS
  • Sul Ross State University, Alpine, TX — summer field geology

MEMBERSHIPS

• American Geophysical Union, 1982-present
• Geological Society of America, 1982-1983, 2002-present
• Geochemical Society, 2014-present

PUBLICATIONS for research group

Papers:

• Lamprophyres in the Munali Hills, Southern Zambia: Evidence of Pan African Ultrapotassic Magmatism in the Zambezi Belt — Osbert Sikazwe, David Holwell, Daryl E. Blanks, Lance Pompe, Bishal Upreti, Benjamin Clausen, Ahmed Ahmed, and Sakuwaha Kabangu. Journal of African Earth Sciences (submitted 2021)
• Machine Learning in Geochemistry: A Bibliometric Analysis — Jodi D. Garcia, Adriana L. Garcia Garza, Germán H. Alférez, Benjamin L. Clausen, and Ana María Martínez Ardila. Springer Nature, Research Book Series: Transactions on Computational Science & Computational Intelligence (accepted 2021; book in press)
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• Geomorphological changes in young soils with sparse vegetation: Mathematical modeling and numerical simulation — Carlos Zambra, Benjamin Clausen, Diego Vasco, and Roberto Lemus-Mondaca. Heliyon, v.9, n.11, e21044, 15p, doi: 10.1016/j.heliyon.2023.e21044 (Nov 2023).
• A synthesis of the Peruvian Coastal Batholith: An exploration of temporal histories, causes of compositional diversity, and tectonomagmatic links in arcs — Ana María Martínez-Ardila, Lance Pompe, Benjamin L. Clausen, Scott R. Paterson, Gregory J. Holk, and Peter Luffi. Lithos, v.456-457, 107298, 24p, doi: 10.1016/j.lithos.2023.107298 (Nov 2023).
• Simulation of cooling in a magma chamber: Implications for geothermal fields of southern Peru — Johan González, Carlos E. Zambra, Luciano González, Benjamin Clausen, and Diego A. Vasco. Geothermics, v.105, 102515, 15p, doi: 10.1016/j.geothermics.2022.102515 (Nov 2022).
• Automatic Classification of Felsic, Mafic, and Ultramafic Rocks in Satellite Images from Palmira and La Victoria, Colombia — Saulo Bosquez, Germán H. Alférez, Ana María Martínez Ardila, and Benjamin L. Clausen. IN: Arai, K. (ed.) Intelligent Computing. SAI 2022. Lecture Notes in Networks and Systems, v.507, p.531-547. Springer, Cham. Proceedings of the 2022 Computing Conference, v.2 (14-15 Jul 2022, London).
• Automated machine learning pipeline for geochemical analysis — Germán H. Alférez, Oscar A. Esteban, Benjamin L. Clausen, and Ana María Martínez Ardila. Earth Science Informatics, doi: 10.1007/s12145-022-00821-8 (Jun 2022)
• Westward migration of high-magma addition rate events in SE Tibet — Ren-Zhi Zhu, Shao-Cong Lai, Scott R. Paterson, Peter Luffi, Bo Zhang, and Lance R. Pompe. Tectonophysics, v.830, 229308, doi: 10.1016/j.tecto.2022.229308 (May 2022).
• Temporal Evolution of Cooling by Natural Convection in an Enclosed Magma Chamber — Carlos Enrique Zambra, Luciano González-Olivares, Johan González, and Benjamin Clausen. Processes, v.10, n.1, 108, doi: 10.3390/pr10010108 (Jan 2022).
• Automatic Classification of Plutonic Rocks with Machine Learning Applied to Extracted Shades and Colors on iOS Devices — Germán H. Alférez, Sarah Hernández Serrano, Ana María Martínez Ardila, and Benjamin L. Clausen. Proceedings of the Future Technologies Conference (FTC) 2021, v.1, p.72-88 (Oct 2021)
• Automatic classification of plutonic rocks with deep learning — Germán H. Alférez, Elías L. Vázquez, Ana María Martínez Ardila, and Benjamin L. Clausen. Applied Computing and Geosciences, v.10, 100061, doi: 10.1016/j.acags.2021.100061 (Jun 2021).
• Using Stable Isotopes to Better Understand the Petrologic and Hydrothermal Evolution of the Cretaceous Linga Complex of the Peruvian Coastal Batholith, Near Ica — Luciano U. González Olivares, Benjamin L. Clausen, Gregory J. Holk, and Orlando Poma. Boletín de la Sociedad Geológica del Perú, v.113, p.12-25 (2020).
• Source contamination, crustal assimilation, and magmatic recycling during three flare-up events in the Cretaceous Peruvian Coastal Batholith: An example from the Ica-Pisco plutons — Ana María Martínez Ardila, Benjamin L. Clausen, Vali Memeti, and Scott R. Paterson. Journal of South American Earth Sciences, v.95, 29p, doi: 10.1016/j.jsames.2019.102300 (Nov 2019).
  • includes 5 extensive data appendices
• Evolución Temporal por Convección Natural de Magma Basáltico no Newtoniano ... scroll down to "Descarga Memorias" [Temporal Evolution by Natural Convection of Non-Newtonian Basaltic Magma] — Johan Gonzalez, Carlos Zambra, Luciano González, and Benjamin L. Clausen. Cuadernos de Mecánica Computacional [Journal of the "Sociedad Chilena de Mecánica Computacional"], v.18, n.1, p.122-131 (Oct 2019).
• Mantle driven Cretaceous flare-ups in Cordilleran arcs — Ana María Martínez Ardila, Scott R. Paterson, Vali Memeti, Miguel A. Parada, and Pablo G. Molina. Lithos, v.326-327, p.19-27, doi: 10.1016/j.lithos.2018.12.007 (Feb 2019).
• Regional bedrock geochemistry associated with podoconiosis evaluated by multivariate analysis — Jamey N. Cooper, Allen M. Cooper, Benjamin L. Clausen, and Kevin E. Nick. Environmental Geochemistry and Health, doi: 10.1007/s10653-018-0158-0 (2018).
• Arc magmatism, tectonism, and tempos in Mesozoic arc crustal sections of the Peninsular and Transverse Ranges, southern California, USA — Scott Paterson, Ben Clausen, Vali Memeti, and Joshua J. Schwartz. IN: Brian Kraatz, Jade Star Lackey, and Joan E. Fryxell, eds., Field Excursions in Southern California: Field Guides to the 2016 GSA Cordilleran Section Meeting: Geological Society of America Field Guide 45, p.81-186, doi: 10.1130/2017.0045(04) (2017).
  • GSA Cordilleran Section Field Trip #1
• Temporal histories of Cordilleran continental arcs: Testing models for magmatic episodicity — Moritz Kirsch, Scott R. Paterson, Florian Wobbe, Ana María Martínez Ardila, Benjamin L. Clausen, and Pablo H. Alasino. American Mineralogist, v.101, p.2133-2154 (2016).
• Interpreting the Geochemistry of Southern California Granitic Rocks using Machine Learning — Germán H. Alférez, Jocksan Rodríguez, Benjamin Clausen, and Lance Pompe. IN: Hamid R. Arabnia, David de la Fuente, Roger Dziegiel, Elena B. Kozerenko, Peter M. LaMonica, Raymond A. Liuzzi, Jose A. Olivas, and Todd Waskiewicz, eds., Proceedings of the 2015 International Conference on Artificial Intelligence (ICAI’15), v.2, p.592-598, CSREA Press, ISBN: 1-60132-405-7 (2015).
• Low-initial-Sr felsic plutons of the northwestern Peninsular Ranges batholith, southern California, and the role of mafic-felsic magma mixing in continental crust formation — Benjamin L. Clausen, Douglas M. Morton, Ronald W. Kistler, and Cin-Ty A. Lee. IN: Douglas M. Morton and Fred K. Miller, eds., Peninsular Ranges Batholith, Baja California and Southern California: Geological Society of America Memoir 211, p.317-344, doi: 10.1130/2014.1211(08) (2014).
• Framework and petrogenesis of the northern Peninsular Ranges Batholith — D. M. Morton, F. K. Miller, R. W. Kistler, W. R. Premo, C.-T. A. Lee, V. E. Langenheim, J. L. Wooden, L. W. Snee, B. L. Clausen, and P. Cossette. IN: Douglas M. Morton and Fred K. Miller, eds., Peninsular Ranges Batholith, Baja California and Southern California: Geological Society of America Memoir 211, p.61-143, doi: 10.1130/2014.1211(03) (2014).

Abstracts:

• Using modern field mapping techniques to characterize magmatic-hydrothermal IOCG deposit alteration zones in a Lower Cretaceous Peruvian plutonic complex — Luiz Eduardo Pereira Santos, Felipe Andrés Pichiñual Bustamente, Benjamin L. Clausen, Ana María Martínez Ardila, Gregory Holk, Juan Carlos Molano, and Orlando Alan Poma Porras. Abstract V51E-0113 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (11-15 Dec 2023, 15th).
• POSTER = 26MB
• The puzzle of zoned plutons: Insights from Geochronology, Geochemistry, and Petrogenesis of the Box Springs Plutonic Complex, Peninsular Ranges Batholith, Riverside, California — Mateo Ospino, Ana María Martínez Ardila, and Benjamin L. Clausen. Abstract V51E-0111 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (11-15 Dec 2023, 15th).
• POSTER = 173MB
• Contrasting geochemistry of plutonic complexes of the Peruvian Coastal Batholith and their time of emplacement into the volcanic/sedimentary host rock of the Huarmey-Cañete basins — Alex Voos, Ana María Martínez Ardila, Benjamin L. Clausen, Luiz Eduardo Pereira Santos, and Orlando Alan Poma Porras. Abstract V51E-0106 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (11-15 Dec 2023, 15th).
• POSTER = 17MB
• Characterizing Proterozoic basements and accreted terranes in northwest Mexico using new ages and isotopic and elemental data of Laramide magmatism in Sonora and Sinaloa states — Luciano Uriel González, Benjamin L. Clausen, and Carlos Manuel González León. Abstract V51E-0105 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (11-15 Dec 2023, 15th).
• POSTER = 107MB
• Spatio-temporal patterns of sediment provenance in the Dahomey Basin (SW Nigeria) investigated by means of U-Pb zircon geochronology — Ronald Nalin, Oluwole A. Oyedeji, Benjamin L. Clausen, Mateo Ospino Diaz, Jacob Obarezi, and Olusola J. Osunremi. Poster #63 presented at the 29th Colloquium of African Geology, Windhoek, Namibia (26-29 Sept 2023, 27th).
• A synthesis of the Peruvian Coastal Batholith: An exploration of temporal histories, causes of compositional diversity, and tectonomagmatic links in arcs — Ana María Martínez-Ardila, Lance Pompe, Benjamin Clausen, Scott Paterson, Greg Holk, and Peter Luffi. Poster presented at the 10th Hutton Symposium, Baveno, Italy (11-12 Sept 2023), p.61.
• POSTER = 7MB
• Episodic magmatism of the Peruvian continental arc — Lance Pompe, Benjamin Clausen, Ana María Martínez Ardila, Scott Paterson, and Orlando Poma. Poster presented at the 10th Hutton Symposium, Baveno, Italy (11-12 Sept 2023), p.26.
• POSTER = 9MB
• Magmatic Diversity of the Peruvian Coastal Batholith Near Lima, Peru: Insights from Oxygen and Strontium Isotopes (requires GSA membership) — James Conway, Gregory J. Holk, Ana María Martínez Ardila, Benjamin L. Clausen, and Scott R. Paterson. Geol. Soc. Amer. Abstracts with Programs, v.54, n.5, doi: 10.1130/abs/2022AM-378693 (12 Oct 2022).
• Geocronologia, Morfología, y Procedencia de Circones Detríticos en Sedimentos del Plioceno, Cuenca Pisco, Perú — Mateo Ospino, Ana Martínez, Lance Pompe, Roberto E. Biaggi, Ben Clausen, Kevin Nick, Orlando Poma, y Fabian Figueroa. XX Congreso Peruano de Geología, Sociedad Geológica del Perú (extended abstract: 12 Oct 2021, 12:40pm PDT)
• Aprovechamiento de recursos geotérmicos mediante simulación computacional y análisis termodinámico — Johan M. Gonzalez, Carlos E. Zambra, Héctor Quinteros-Lama, Luciano González, y Benjamin Clausen. XIX Jornadas de Mecánica Computacional 2021, Id: 166. (7 Oct 2021, 12:20pm)
• Machine Learning in Geochemistry: A Bibliometric Analysis — Jodi D. Garcia, Adriana L. Garcia Garza, Germán H. Alférez, Benjamin L. Clausen, and Ana María Martínez Ardila. The 2021 World Congress in Computer Science, Computer Engineering, and Applied Computing, p.74 (28 July 2021, 12:40pm)
• Variation in Age and Geochemistry of the Peruvian Coastal Batholith from South to North (requires GSA membership) — Raquel Bendita, Ana María Martínez Ardila, Benjamin L. Clausen, Lance Pompe, and Gregory J. Holk. Geol. Soc. Amer. Abstracts with Programs, v.53, n.4, doi: 10.1130/abs/2021CD-363092 (12 May 2021, 11:45am)
• Zircon Ages Reveal Unexpected Older Flare-Up in the Peruvian Coastal Batholith (requires GSA membership) — Alex Voos, Ana María Martínez Ardila, and Ben Clausen. Geol. Soc. Amer. Abstracts with Programs, v.53, n.4, doi: 10.1130/abs/2021CD-363021 (12 May 2021, 12:05pm)
• Understanding the Geochemistry of Southern California Plutonic Rocks Using Automated Machine Learning (requires GSA membership) — Oscar Esteban, Germán Alférez, Ana María Martínez Ardila, and Benjamin L. Clausen. Geol. Soc. Amer. Abstracts with Programs, v.53, n.4, doi: 10.1130/abs/2021CD-362505 (12 May 2021, 12:10pm)
• Automatic Classification of Plutonic Rocks with Machine Learning Applied to Dominant Colors on iOS Devices (requires GSA membership) — Sarah Hernández Serrano, Germán Alférez, Ana María Martínez Ardila, and Benjamin L. Clausen. Geol. Soc. Amer. Abstracts with Programs, v.53, n.4, doi: 10.1130/abs/2021CD-362983 (12 May 2021, 12:15pm)
• Using Mineral Forensics to Determine the Nature of Gabbro: Primitive Mantle Melt or Crystal Cumulate? (requires GSA membership) — Ana María Martínez Ardila, Vali Memeti, Scott Paterson, Rosario Esposito, and Melissa Chambers. Geol. Soc. Amer. Abstracts with Programs, v.53, n.4, doi: 10.1130/abs/2021CD-363340 (13 May 2021, 9:10am).
• Using Multivariate Analyses for an Efficient Understanding of Hawaiian Islands Geochemical Trends — J. N. Cooper and B. L. Clausen. Virtual PowerPoint presented at Goldschmidt Conference, doi: 10.46427/gold2020.475 (23 Jun 2020).
• Plagioclase Forensics as a Tool to Determine the Nature of Gabbro: Mantle-Melt or Crystal Cumulate? (requires GSA membership) — Ana María Martínez Ardila, Vali Memeti, Scott Paterson, Rosario Esposito, and Melissa Chambers. Geol. Soc. Amer. Abstracts with Programs, v.52, n.4, doi: 10.1130/abs/2020CD-347608 (13 May 2020).
• Source contamination, crustal assimilation, and magmatic recycling during three flare-ups in the Cretaceous Peruvian Coastal Batholith — Ana María Martínez Ardila, Benjamin Clausen, Vali Memeti, and Scott Paterson. Poster presented at the 9th Hutton Symposium on the Origin of Granites and Related Rocks, Nanjing, China (17-18 Oct 2019).
• Applying Multivariate Statistical Techniques to Continental Arc Geochemistry — L. R. Pompe, B. L. Clausen, and D. M. Morton. Poster presented at the 9th Hutton Symposium on the Origin of Granites and Related Rocks, Nanjing, China (13-14 Oct 2019).
• Evolución Temporal por Convección Natural de Magma Basáltico no Newtoniano [Temporal Evolution by Natural Convection of Non-Newtonian Basaltic Magma] (scroll down to "Descarga Memorias") — Johan González, Carlos Zambra, Luciano González, and Benjamin L. Clausen. Oral presentation at the 18th meeting of the Sociedad Chilena de Mecánica Computacional, Universidad de Chile, Santiago, p.24 (4 Oct 2019, 12:30-12:45pm).
• The Coastal Batholith of Peru: Insights from Stable Isotopes (requires GSA membership) — Gregory J. Holk, Benjamin L. Clausen, Luciano González, Orlando P. Porras, Julia Chen, Joseph Guiterrez, Joseph Landeros, and Riley Lavering. Oral presentation 78-2, Phoenix, AZ, Geol. Soc. Amer. Abstracts with Programs, v.51, n.5, doi: 10.1130/abs/2019AM-334100 (23 Sep 2019).
• Estudio petrográfico y geoquímico de las rocas gabroideas del Complejo Ofiolítico de Ginebra (COG), en el sector de Puente Piedra, Valle del Cauca [Colombia] — Duban Esteban Gómez Gómez; Director: Juan Carlos Molano Mendoza; Co-director: Ana María Martínez Ardila. Poster presented at Universidad Nacional de Colombia (10 Jul 2019).
• The Petrologic and Hydrothermal Evolution of the Coastal Batholith of Peru: Insights from Oxygen Isotopes — G. J. Holk, B. Clausen, L. U. Gonzáles, J. Chen, J. Guiterrez, R. Lavering, and O. Poma. Oral presentation at the Southern California Academy of Sciences, 112th annual meeting, California State University, Northridge, p.11, 24-25 (3 May 2019).
• Tectonomagmatic histories of western South America and southern Africa — Lance Pompe, Benjamin L. Clausen, Scott R. Paterson, Shepande Kalapula, Bishal Nath Upreti, Osbert Sikazwe, and Orlando Alan Poma Porras. Abstract V33D-0266 presented at Fall Meeting, American Geophysical Union, Washington, DC (10-14 Dec 2018, 12th).
• Petrography and Geochemistry of the Munali Hills Lamprophyre Dyke (?), Chikankata District, Southern Province, Zambia — Osbert N. Sikazwe, Lance R. Pompe, Bishal N. Upreti, Benjamin L. Clausen, Ahmed H. Ahmed, Sakuwaha Kabangu, Scott R. Paterson, and Shepande Kalapula. Abstract presented at the First Zambian National Conference on Geology, Mining, Metallurgy and Groundwater Resources: The Future of Mining. Lusaka, Zambia (22 Nov 2018).
• Mantle Driven Cretaceous Flare-Up Events in Cordilleran Arcs — Ana María Martínez, Scott R. Paterson, Vali Memeti, Miguel A. Parada, and Pablo G. Molina. Abstract presented at Goldschmidt Conference, Boston, MA (12-17 Aug 2018).
• Stable and radiogenic isotopes and new U-Pb zircon ages in relation to magmatic flare-ups in the Peruvian Coastal Batholith and central Peru — Lance Pompe, Ben Clausen, Greg Holk, Luciano González, and Julia Chen. Abstract presented at 11th South American Symposium on Isotope Geology, Cochabamba, Bolivia, p.109 (22-25 Jul 2018).
• Upper Crustal Evolution During an Arc Flare-up: Integrating Sedimentary, Volcanic, and Plutonic Records of the Triassic-Early Jurassic Continental Arc Upper Crustal Section, Eastern-Central Sierra Nevada, CA — Snir Attia, Scott R. Paterson, Katie E. Ardill, Ana Maria Martínez, Barbara Ratschbacher, Wenrong Cao, and John M. Cottle. Geol. Soc. Amer. Abstracts with Programs, v.49, n.6, doi: 10.1130/abs/2017AM-298686 (24 Oct 2017).
• Mixed Magma Sources for the Southern Arequipa Segment of the Peruvian Coastal Batholith: Evidence from Stable Isotopes — Julia Chen, Gregory J. Holk, and Benjamin L. Clausen. Geol. Soc. Amer. Abstracts with Programs, v.49, n.6, doi: 10.1130/abs/2017AM-301924 (24 Oct 2017).
• Episodic Continental Arc Magmatism in the Peruvian Andes from U-Pb Zircon Geochronology — Lance R. Pompe, Benjamin L. Clausen, Scott R. Paterson, Kevin E. Nick, Ana M. Martínez, and Orlando P. Porras. Geol. Soc. Amer. Abstracts with Programs, v.49, n.6, doi: 10.1130/abs/2017AM-304862 (24 Oct 2017).
• New U-Pb and Rb-Sr Ages for the Northern Arequipa Segment of the Peruvian Coastal Batholith — Benjamin L. Clausen and Ana Maria Martínez. Geol. Soc. Amer. Abstracts with Programs, v.48, n.4, doi: 10.1130/abs/2016CD-274667 (5 Apr 2016).
• Petrochemistry and Magma Chamber Processes of the Peruvian Coastal Batholith Granites in the Northern Part of the Arequipa Segment — Ana Maria Martínez, Benjamin L. Clausen, Scott R. Paterson, and Vali Memeti. Geol. Soc. Amer. Abstracts with Programs, v.48, n.4, doi: 10.1130/abs/2016CD-274593 (5 Apr 2016).
• Exploring Causes of Mesozoic Arc Flare-ups in the Peninsular Ranges Batholith, Southern California — Scott R. Paterson, Benjamin L. Clausen, and Moritz Kirsch. Geol. Soc. Amer. Abstracts with Programs, v.48, n.4, doi: 10.1130/abs/2016CD-274397 (5 Apr 2016).
• Oxygen Isotope Values for Unaltered and Hydrothermally Altered Samples from the Cretaceous Linga Plutonic Complex of the Peruvian Coastal Batholith Near Ica — Luciano U. González, Ben Clausen, Gregory Holk, and Orlando Poma. Abstract presented at XVIII Congreso Peruano de Geología, Lima, Perú (16-19 Oct 2016, 17th).
• Oxygen and Hydrogen Isotope Values for Unaltered and Hydrothermally Altered Samples from the Cretaceous Linga Plutonic Complex of the Peruvian Coastal Batholith near Ica — Luciano González, Gregory Holk, Benjamin Clausen, and Orlando Poma Porras. Abstract V53C-3140 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (14-18 Dec 2015, 18th).
• The Use of Multi-Component Statistical Techniques in Understanding Subduction Zone Arc Granitic Geochemical Data Sets — Lance Pompe, Benjamin Clausen, and Douglas Morton. Abstract V23B-3146 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (14-18 Dec 2015, 15th).
• Magmatic Recycling During Construction of a Batholith — Ana Maria Martínez, Benjamin L. Clausen, Vali Memeti, and Scott R. Paterson. Geol. Soc. Amer. Abstracts with Programs, v.47, n.7, p.580 (3 Nov 2015).
• Arc-Scale Temporal Histories of the Cordilleran Orogen — Moritz Kirsch, Scott R. Paterson, Florian Wobbe, Ana Maria Martínez Ardila, Benjamin L. Clausen, and Pablo H. Alasino. Abstract presented at Goldschmidt Conference, Prague, Czechoslovakia, 1602 (16-21 Aug 2015).
• Interpreting the Geochemistry of Southern California Granitic Rocks Using Machine Learning — Germán H. Alférez, Jocksan Rodríguez, Benjamin Clausen, and Lance Pompe. Paper ID# ICA2786 presented at the 17th International Conference on Artificial Intelligence, ICAI’15, Monte Carlo Resort, Las Vegas, NV, p.592 (27-30 Jul 2015, 28th). ... see also index
• A Preliminary Heat Flow Model for Cooling a Batholith near Ica, Peru — Luciano Uriel González, Benjamin L. Clausen, Juan Carlos Molano, Ana M. Martínez, and Orlando Poma. Abstract V33B-4853 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (15-19 Dec 2014).
• Interpreting the Geochemistry of the Northern Peninsula Ranges Batholith Using Principle Component Analysis and Spatial Interpolation — Lance Pompe, Benjamin L. Clausen, and Douglas M. Morton. Abstract V33B-4852 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (15-19 Dec 2014).
• Statistical comparison of the geochemistry of volcanic bedrocks and soils from podoconiosis-associated regions on the African continent — Jamey N. Cooper, Allen M. Cooper, Benjamin L. Clausen, Kevin E. Nick. Geol. Soc. Amer. Abstracts with Programs, v.46, n.6, p.304 (2014).
• Arc Magmatic Tempos — Scott R. Paterson, Barbara Ratschbacher, Vali Memeti, and Benjamin L. Clausen. Abstract presented at Goldschmidt Conference, Sacramento, CA, p.1912 (8-13 Jun 2014, 11th).
• Temporal aspects of non-steady-state histories of arcs — Scott R. Paterson, Moritz Kirsch, Ben Clausen, and Wenrong Cao. Abstract presented at Goldschmidt Conference, workshop: Arc magmatism and crustal forensics in the Andes – Geological, Geochemical, Geophysical, and Geochronological perspectives, Sacramento, CA (8 Jun 2014).
• Magma sources and mixing for the Coastal Batholith in southern Peru: insights from new elemental and isotopic data and from comparison with California batholithic rocks — Benjamin L. Clausen, Ana M. Martínez, Luciano U. González, Orlando Poma, Scott R. Paterson, and Adam Ianno. Abstract V51C-2667 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (9-13 Dec 2013).
• Field relationships and petrographic evidence of magma mingling and mixing processes in the Arequipa Segment of the Coastal Batholith in Southern Peru — Ana M. Martínez, Benjamin L. Clausen, Luciano U. González, and Orlando Poma. Abstract V51C-2671 presented at Fall Meeting, American Geophysical Union, San Francisco, CA (9-13 Dec 2013).
• Principle Component Analysis on Geochemical Variables from Four Cordilleran Transects — Ben Clausen, Ana Martínez, Scott Paterson, and Adam Ianno. Poster at the GSA Field Forum: Formation of the Sierra Nevada Batholith: Magmatic and Tectonic Processes and Their Tempos (1-8 Sep 2012).
• Geochemistry of the Coastal Batholith in Southern Peru: A Comparison with the Peninsular Ranges in Southern California — Benjamin L. Clausen and Ana María Martínez Ardilla. Poster at the GSA Field Forum: Formation of the Sierra Nevada Batholith: Magmatic and Tectonic Processes and Their Tempos (1-8 Sep 2012).
• Geochemical indicators of magma source, depth, mixing, alkalinity, and extent of differentiation in the Coastal Batholith near Ica in southern Peru — Benjamin L. Clausen, Ana Martínez, and Orlando Poma. Presentation #1684 in oral session 21.3 at the 34th International Geological Congress, Brisbane, Australia, handbook p.112 (5-10 Aug 2012, 7th @ 14:15).
• Petrographic evidence of magma mixing and mingling processes in the Arequipa Segment of the Coastal Batholith in Southern Peru — Ana M. Martínez and Benjamin L. Clausen. Presentation #297 in poster session 21.1 at the 34th International Geological Congress, Brisbane, Australia, handbook p.269 (5-10 Aug 2012, 9th).
• Geochemistry of the Coastal Batholith in Southern Peru: A comparison with the Peninsular Ranges Batholith in southern California — B. L. Clausen and A. M. Martínez Ardila. Poster presented at Seventh Hutton Symposium on Granites and Related Rocks, Avila, Spain, p.40, edited by J. F. Molina, J. H. Scarrow, F. Bea, and P. Montero (4-9 Jul 2011).
• A Geochemical Comparison of the Northern Peninsular Ranges Batholith in Southern California and the Coastal Batholith in Southern Peru — Benjamin L. Clausen, Ana María Martínez Ardila, and Douglas M. Morton. Abstract V43A-2346 presented at the Fall Meeting, American Geophysical Union, San Francisco, CA (13-17 Dec 2010).
• Tephrochronology and High Resolution Correlation in the Upper Pisco Formation, Miocene, Peru — Kevin E. Nick and Benjamin L. Clausen. Geol. Soc. Amer. Abstracts with Programs, v.42, n.5, p.432 (2010).
• Mafic-Felsic Magma Mixing in Continental Crust Formation: An Example from Low-Initial Sr Granitoids of the Northwestern Peninsular Ranges Batholith, Southern California — Benjamin L. Clausen, Douglas M. Morton, Ronald W. Kistler, and Cin-Ty A. Lee. Geol. Soc. Amer. Abstracts with Programs, v.42, n.4, p.104 (2010).
• Continental crust formation: Mixing of mafic and felsic magmas to produce intermediate composition rocks — Benjamin L. Clausen, Douglas M. Morton, Ronald W. Kistler, and Cin-Ty A. Lee. Oral presentation MPI01203L at the 33rd International Geological Congress, Oslo, Norway, p.10 (6-14 Aug 2008, 7th). ... see also proceedings, p.172 #4290
• Low ⁸⁷Sr/⁸⁶Sri granitoids of the north western Peninsular Ranges Batholith, southern California — B. L. Clausen, D. M. Morton, R. W. Kistler, and C-T. A. Lee. Abstract presented at the 6th International Hutton Symposium: Origin of Granites and Related Rocks, Stellenbosch, South Africa, p.67-68, compiled and edited by Jodie A. Miller and Alex F. M. Kisters (2-6 Jul 2007).
• Fractionation Trends and Assimilation in Cretaceous and Triassic Intrusives in the Central San Bernardino Mountains, CA — Ethan Allen, Benjamin L. Clausen, Kevin E. Nick, Douglas M. Morton, and Ronald W. Kistler. Geol. Soc. Amer. Abstracts with Programs, v.38, n.7, p.560 (2006).
• Geochemical Trends in Igneous Rocks in the San Bernardino Mountains, Southern California — Ethan Allen, Benjamin L. Clausen, D. M. Morton, and Ronald W. Kistler. Geol. Soc. Amer. Abstracts with Programs, v.37, n.7, p.290 (2005).
• Differentiation and Contamination in the Northern Peninsular Ranges Batholith, Southern California — Benjamin L. Clausen, D. M. Morton, and Ronald W. Kistler. Geol. Soc. Amer. Abstracts with Programs, v.36, n.5, p.359 (2004).
• Trace Element Variations Within the Northern Peninsular Ranges Batholith, Southern California — Benjamin L. Clausen, Douglas M. Morton, and Ronald W. Kistler. Geol. Soc. Amer. Abstracts with Programs, v.35, n.6, p.326 (2003).
• Additional Chemical Trends Across the Northern Peninsular Ranges, Southern California — Benjamin L. Clausen, Douglas M. Morton, and Ronald W. Kistler. Geol. Soc. Amer. Abstracts with Programs, v.34, n.6, p.125 (2002).
• Depositional Environments and Petroleum Potential of a Miocene Lacustrine Deposit, West-Central Nevada — Kevin E. Nick, Ben L. Clausen, and H. Paul Buchheim. Am. Assoc. Petrol. Geol. Bull., v.66, n.5, p.613 (1982).

Dissertations/Theses

• Episodic Continental Arc Magmatism in Peru: An Analysis of Flare-ups — Lance R. Pompe, June 2023, PhD dissertation, 394p (committee chair).
• Minerals and Macrophages: Testing the Silicon-Aluminum Paradigm for the Etiology of Podoconiosis — Jamey N. Cooper, June 2018, PhD dissertation (committee member).
• Conduction Plus Convection Heat Flow Modeling for the Linga Complex, Peruvian Coastal Batholith — Luciano Uriel González Olivares, September 2017, PhD dissertation, 248p (committee chair).
• Compositional Diversity in Arcs: A Record of Magmatic Processes in the Peru Coastal Batholith, Ica — Ana Maria Martínez Ardila, September 2016, PhD dissertation, 410p (committee chair).
• Interpreting Southern California Arc Geochemistry by Multivariate and Spatial Methods — Lance R. Pompe, September 2016, MS thesis, 88p (committee chair).
• Crustal Contamination Effects in Central San Bernardino Mountains Intrusives, CA — Ethan F. Allen, June 2007, MS thesis, 131p (committee co-chair).

PROFESSIONAL MEETINGS

• Co-chaired session – April 5, 2016 ... Geological Society of America, Cordilleran Section, Ontario, CA
  • T3. Causes and Consequences of Magmatic and Tectonic Tempos in Continental and Oceanic Arcs
  • Scott R. Paterson, Barbara Ratschbacher, Joshua J. Schwartz, and Benjamin L. Clausen

RESEARCH & PRESENTATIONS

• Research Areas
  • California -- 2002-present
  • Peru -- 2010-present
• Field Trip & Lecture Presentations
  • Colorado -- 2003-2010
  • Italy -- 2004, 2009, 2011, 2012, 2014
  • Kenya -- 2004, 2007, 2009
  • Philippines -- 2007
  • New Mexico -- 2009
  • Virginia -- 2010
  • British Columbia / Alberta -- 2010-2011
  • Israel -- 2012
  • Nigeria -- 2013
  • Korea -- 2014-2015
  • Cuba -- 2015
  • Zimbabwe/Zambia -- 2015, 2018
  • Indonesia -- 2016, 2017
  • Chile -- 2017
• Lectures on Local Geology
  • Bangladesh, Colombia, India, Jamaica, Mexico, Myanmar, Quebec, Scandinavia, South Dakota, Thailand, Trinidad, Uganda
• Topical
  • Precambrian
• Artical
  • Galapagos

LAST UPDATE: 18 November 2022