Peter Schiffman

Department of Geology

University of California, Davis 

 

 

Below are some areas of research that my students, collaborators and I have published on in recent years.  If you have any questions, don't hesitate to e-mail me at PSchiffman@UCDavis.edu.

 

 

Iceland Deep Drilling Project results

 

2013 Schiffman, P. , Zierenberg, R.A., Mortensen, R.A., Guðmundur Friðleifsson; Wilfred Elders . High temperature metamorphism in the conductive boundary layer adjacent to a rhyolite intrusion in the Krafla geothermal system, Iceland.  Geothermics

 

2012 Zierenberg, R.A. Schiffman, P. et al  .  Composition and origin of rhyolite magma intersected by drilling in the Krafla geothermal field, Iceland.  Contributions to Mineralogy and Petrology

 

2011  Elders, W.A.,É and P.Schiffman  Origin of a rhyolite that intruded a geothermal well while drilling at the Krafla Volcano, Iceland.  Geology, doi:10.1130/G31393.1

 

 

Hydrothermal alteration in active geothermal systems

 

2011 Marks, N., Schiffman, P., Zierenberg, R.A High-grade contact metamorphism in the Reykjanes geothermal system: Implications for fluid!rock interactions at mid!oceanic ridge spreading centers.  Geochemistry, Geophysics, Geosystems 12, Q08007, doi:10.1029/2011GC003569

 

2010 Marks, N., Schiffman, P., Zierenberg, R.A., Franzson,, H., and Fridleifsson, G.O. Hydrothermal Alteration in the Reykjanes Geothermal System: Insights from Iceland Deep Drilling Program Well RN-17.  Journal of Volcanology and Geothermal Research 189, 172-190.

 

2008 Franzson, H., Zierenberg, R., and P. Schiffman  Chemical transport in geothermal systems in Iceland: Evidence from hydrothermal alteration. Journal of Volcanology and Geothermal Research 173, 217-229.

 

 

Mid-oceanic hydrothermal systems

 

2010 Schiffman, P., R. Zierenberg, W. W. Chadwick Jr., D. A. Clague, and J. Lowenstern.  Contamination of basaltic lava by seawater: Evidence found in a lava pillar from Axial Seamount, Juan de Fuca Ridge.  Geochem. Geophys. Geosyst., 11, Q04004, doi:10.1029/2009GC003009

 

 

Palagonitization and weathering of basaltic tephra

 

2011  Pauly, B.D., Schiffman, P., Zierenberg, R.A., Clague, D.A.   Environmental and chemical controls on palagonitization. Geochemistry, Geophysics, Geosystems 12, Q12017, doi:10.1029/2011GC003639

 

2000    Schiffman, P., H. J. Spero, R. J. Southard and D. A. Swanson.  Controls on palagonitization versus pedogenic weathering of basaltic tephra: Evidence from the consolidation and geochemistry of the Keanakako'i Ash member, Kilauea Volcano.  Geochemistry Geophysics Geosystems 1: Paper number 2000GC000068, ISSN: 1525-2027.

 

2004    Drief, A. and P. Schiffman  Very low-temperature alteration of sideromelane in hyaloclastites and hyalotuffs from Kilauea and Mauna Kea volcanoes: Implications for the mechanism of palagonite formation.  Clays and Clay Minerals 52(5):622-634.

 

2006   Schiffman, P., Zierenberg, R., Marks, N., Bishop, J.L., and M. Darby Dyar. Acid fog deposition at Kilauea Volcano: A possible mechanism for the formation of siliceous-sulfate rock coatings on Mars. Geology 34, 921-924.

 

 

Diagenesis of hyaloclastites in the Hawaii Scientific Drilling Project's 3-km hole

 

2003    Walton, A. W. and P. Schiffman.  Alteration of hyaloclastites in the HSDP 2 Phase 1 Drill Core:  (I) Description and paragenesis.  Geochemisty, Geophysics, and Geosystems, doi: 10.1029/2002GC000368, ISSN: 1525-2027.

 

2005   Walton, A.W., P. Schiffman, and G. L. Macpherson.  Alteration of hyaloclastites in the HSDP 2 Phase 1 drill core:  2. Mass balance of the conversion of sideromelane to palagonite and chabazite.  Geochemisty, Geophysics, and Geosystems 6(9), Q09G19, doi: 10.1029/2004GC000903, ISSN: 1525-2027.

 

 

Hyaloclastites and slope stability of oceanic volcanoes

 

2006    Schiffman, P., R. J. Watters, N. Thompson, and A. W. Walton.  Hyaloclastites and the slope stability of Hawaiian volcanoes: Insights from the Hawaiian Scientific Drilling Project?s 3-km drill core.  Journal of Volcanology and Geothermal Research 151, 217-228.

 

2008   Thompson, N., Watters, R.J., and P. Schiffman. Stability analysis of Hawaiian island flanks using insight gained from strength testing of the HSDP core.  Journal of Volcanology and Geothermal Research 171, 163-177.

 

Mineralogy of equine enteroliths and animal calculus

 

2001    Neumann, R. D., A. L. Ruby, G. V. Ling, P. Schiffman, and D. L. Johnson.  Ultrastructure of selected calcium oxalate-containing utinary calculi from dogs.  American Journal of Veterinary Research 62:237-247.

 

 2001  Hassel, D.M.. Schiffman, P., and J.R. Snyder.  Petrographic and geochemic evaluation of equine enteroliths. American Journal of Veterinary Research 62:350-358.

 

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