Publications

Peer-Reviewed Articles

Nourse, Jonathan A., Premo, W. R., Iriondo, A., and Stahl, E. R., 2005,Contrasting Proterozoic basement provinces near the truncated margin of Laurentia, northwestern Sonora-Arizona border region, in Anderson, T. H., Nourse, J. A., McKee, J., and Steiner, M (eds.), The Mojave-Sonora Megashear Hypothesis: Development, Assessment, and Alternatives,  Geological Society of America Special Paper #393, Chapter 4, p. 123-182.


Anderson, Thomas H. and Nourse, Jonathan A., 2005, Pull-apart basins at releasing bends of the sinistral Late Jurassic Mojave-Sonora fault system: Principal structures within the southwestern North America borderland, in Anderson, T. H., Nourse, J. A., McKee, J., and Steiner, M (eds.), The Mojave-Sonora Megashear Hypothesis: Development, Assessment, and Alternatives, Geological Society of America Special Paper #393, Chapter 3, p. 97-122.


Nourse, Jonathan A., 2002,Mid-Miocene reconstruction of the central and eastern San Gabriel Mountains, with implications for evolution of the San Gabriel fault and Los Angeles basin, in Barth, A. P. (ed.), Contributions to Crustal Evolution of the Southwestern United States, Boulder, Colorado, Geological Society of America Special Paper No. 365, p. 161-185.


Nourse, Jonathan A., 2001,Tectonic insights from an upper Jurassic-Lower Cretaceous stretched-clast conglomerate, Caborca-Altar region, northwestern Sonora, Mexico, Journal of South American Earth Sciences, v. 14, n. 5, p. 453-474.


Nourse, Jonathan A., 1995, Jurassic-Cretaceous paleogeography of the Magdalena region, northern Sonora, and its influence on the positioning of Tertiary metamorphic core complexes in Roldan-Quintana, J., Jacques-Ayala, C., and Gonzalez-Leon, C. (eds.), Studies of Mesozoic Geology in Sonora, Mexico and Adjacent Regions, Geological Society of America Special Paper 301-06, p.59-77.


Nourse, Jonathan A., Anderson, Thomas H., and Silver, Leon T., 1994, Tertiary metamorphic core complexes in Sonora, northwestern Mexico, Tectonics, v. 13, no. 5, p. 1162-1184.

Professional Field Trip Guidebooks

Nourse, Jonathan A. Carey, Lauren, Bautz, Melissa L., and Reilly, John P, 2010, Hydrogeology of Icehouse Canyon Contrasted with Upper San Antonio Watershed, San Gabriel Mountains, California, in Clifton H. E. and  Ingersoll, R.V. (eds.) , Geological Excursions in California and Nevada: Tectonics, Stratigraphy and Hydrogeology, Field Trip Guidebook for Geological Society of America Cordilleran Section Meeting, Anaheim, California., May  27-29, pp. 323-348.

Kenney, Reynolds, Goetz, Harris, El-Zaynab, Nourse, Saint , and Summers, 2010, field presentations and road log in Saint, P., Herzberg, M. and Zaprianoff, B., (eds.) , Geology and Hydrology in the Eastern San Gabriel Mountains Through the River of Time, Field Trip Guidebook for South Coast Geological Society, June 18-19.


Bautz, Melissa and Nourse, Jonathan, 2010,Synopsis of Icehouse Canyon Hydrogeology from Observations of the Mid 1990’s, in Saint, P., Herzberg, M. and Zaprianoff, B., (eds.), Geology and Hydrology in the Eastern San Gabriel Mountains Through the River of Time, Field Trip Guidebook for South Coast Geological Society, June 18-19, pp. 281-288.


Heaton, Daniel and Nourse, Jonathan, 2010, Comparison of Late Cretaceous Plutonic Rocks across the left-Lateral San Antonio Canyon fault, San Gabriel Mountains, California, in Saint, P., Herzberg, M. and Zaprianoff, B., (eds.) , Geology and Hydrology in the Eastern San Gabriel Mountains Through the River of Time, Field Trip Guidebook for South Coast Geological Society, June 18-19, pp. 117-124.

Nourse, Jonathan A., 2009, Natural Disasters, Past and Impending, in the Eastern San Gabriel Mountains, in Caputo, M. (ed.) , National Association of Geology Teachers Far Western Meeting, Mount San Antonio College, California., April 17-18.


Nourse, Jonathan A., 2003, Late Cenozoic Magmatism, Faulting, Uplift, Flooding, Erosion in the Eastern San Gabriel Mountains and Pomona Valley, in Weigand, P. W. (ed.), A Day in the Field With Tom Dibblee, Field Trip Guidebook published by the Thomas W. Dibblee, Jr. Foundation, May 24.


Trent, Dee D. and Nourse, Jonathan. A., 2001, Geology, Hydrology, and Mining History of Upper San Antonio Canyon, in Hazlett, R. W. (ed.), Field Trip Guidebook for National Association of Geology Teachers Far Western Meeting, Claremont, CA., April 21-22, p. 2.1-2.16.


Trent, Dee D., Hazlett, Richard W., and Nourse, Jonathan. A., 2001, Geology, of Icehouse Canyon area, San Gabriel Mountains, California, in Hazlett, R. W. (ed.), Field Trip Guidebook for National Association of Geology Teachers Far Western Meeting, Claremont, CA., April 21-22, p. 4.1-4.8.


Nourse, Jonathan A., Weigand, Peter W., and Hazelton, Garrett B., 1998,Igneous and tectonic response of the eastern San Gabriel Mountains to Neogene extension and rotation of the Transverse Ranges block, in Behl, R. J., (ed.), Field Trip Guidebook for the 94th Annual GSA Cordilleran Section Meeting, CSU Long Beach, p. 10.1-10.15.


Silver, L. T., Nourse, J. A., Jacobson, C. E., and Wood, D., 1995, Rand Mountains-Southern Sierra Nevada-Tehachapi Mountains: A geologic field excursion for the Tehachapi Penrose conference, October 10.
Nourse, Jonathan A., 1992, Geologic transect through the Magdalena-Madera metamorphic core complexes, northern Sonora, Mexico
, in Clark, K. F., Roldan-Quintana, J. and Schmidt, R. H., editors, Geology and Mineral Resources of Northern Sierra Madre Occidental, Mexico, Guidebook for the 1992 Field Conference, El Paso Geological Society, p. 359-366.


Nourse, Jonathan A., 1990, Tectonostratigraphic development and strain history of the Magdalena metamorphic core complex, Sonora, Mexico; in Gehrels, G. and Spencer, J., editors, Geologic excursions through the Sonoran desert region, Arizona and Mexico:  Arizona Geological Society Special Paper #7, p. 155-164.

Technical Reports

Nourse, Jonathan A. and Stubbe, Paul, 2008, Summary of structure and mineralization at La Variedad, La Bellota, and Las Amarillas prospects, Leon Property, central Sonora, Mexico, submitted to Colibri Resource Corp., 10 pages plus illustrations.


Nourse, Jonathan A., 2006, Integration of IP/Resistivity survey with geology, structure and mineralization near the San Francisco-Juarez claims, Colibri mineral concession, northwest Sonora, Mexico, submitted to Colibri Resource Corp., 24 pages plus illustrations.


Nourse, Jonathan A., 2006, Preliminary model for structurally controlled gold mineralization at the Juarez-San Francisco concession, northwest Sonora, Mexico, submitted to Colibri Resource Corp., 16 pages plus illustrations.


Nourse, Jonathan A., 2005, Preliminary analysis of geology, structure, and mineralization at the Tilichi concession, northwest Sonora, Mexico, submitted to Markham Crupi and Associates, 14 pages.


Nourse, Jonathan A., 2005, Preliminary analysis of stratigraphy, structure, and mineral potential at the Juarez-San Francisco gold property, northwest Sonora, Mexico, submitted to Colibri Resource Corporation, 10 pages.


Nourse, Jonathan A., 2004, Evaluation of slope stability near Lots #3-6, Lower Icehouse Canyon Road, Mt. Baldy, California, submitted to Global Realty Co, 11 pages.


Nourse, Jonathan A., 2003, Proposal for new water delivery system to lots #5, #10, and #12, Icehouse Canyon tract, Angeles National Forest, San Gabriel Mountains, California, submitted to United States Forest Service, 28 pages.


Nourse, Jonathan A., 2003, Evaluation of groundwater flow near Chapman Spring, San Gabriel Mountains, California, with recommendations for enhancing the water collection system, submitted to Snowcrest Heights Improvement Association, Mt. Baldy, California, 23 pages.


Nourse, Jonathan A., 2002, Evaluation of supplementary groundwater sources near Mt. Baldy Trout Ponds, submitted to San Antonio Canyon Mutual Services Company, 5 pages.


Nourse, Jonathan A., 2001, Hydrogeology of Manker Canyon water resources, San Gabriel Mountains, California, with recommendations for future enhancement and development, submitted to Snowcrest Heights Improvement Association, Mt. Baldy, California, 21 pages.


Nourse, Jonathan A., 1999, Dynamics of stream flow and hydroelectric diversion in lower San Antonio Canyon, submitted to Southwest Council of Federation of Fly Fishermen, 35 pages plus one plate.


Nourse, Jonathan A., 1994, Hydrogeologic controls on water resources, slope stability, and erosion in Aliso Creek watershed, Chino Hills State Park, California, submitted to California Department of Parks and Recreation, 93 pages plus four plates.


Nourse, Jonathan A., 1994, Water resources of upper San Antonio Creek watershed, eastern San Gabriel Mountains, California, submitted to Snowcrest Heights Improvement Association, Mt. Baldy, California, 86 pages plus one plate.