Carrie A. Masiello


Department of Geography
Division of Geology and Planetary Sciences
Ellison Hall 3611
mail code 170-25
UC Santa Barbara
California Institute of Technology
Santa Barbara, CA 93106
Pasadena, CA 91125


phone: (626) 395-6496• fax (626) 568-0935



Research Interests
Professional Experience
Teaching Experience
Awards and Honors
Field/Cruise History


  • December 1999, Earth System Science, U.C. Irvine
  • advisor:  Ellen R.M. Druffel
  • thesis title:  Radiocarbon Measurements of Black Carbon in Sediments and a Small River
  • 1996, Chemistry, U.C. Irvine
  • 1993, Environmental Science, U.N.C.-Chapel Hill
  • advisor:  Harvey E. Jeffries
  • thesis title:  Organic Acids in the Oxidation Products of Isoprene
  • 1991, Physics and Mathematics, Earlham College, Richmond, Indiana

Research Interests:


Professional Experience:
7-02 to present AAUW postdoctoral fellow, joint UCSB and USGS-Menlo Park
current visitor, Division of Geology and Planetary Sciences, CalTech
summer 02 postdoctoral researcher, Dept. Biology, U. Pennsylvania
12-99 to 3-02 Postdoctoral researcher, Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory
1993 - 1999 U.C. Irvine:  graduate research and teaching assistant
1991-1993 U.N.C. Chapel-Hill:  graduate research assistant

host and organizer of UC-wide symposium:   Mechamisms of Carbon Sequestration in Soils
co-chair:  International Steering Committee for Black Carbon Reference Materials

  Reviewer for:

Global Biogeochemical Cycles Geophysical Research Letters Radiocarbon
Geochimica Cosmochimica Acta Enivronmental Science & Technology JGR-Atmospheres

  Field/Cruise History:              
2001-present:  Santa Cruz, CA soil chronosequence
soil and soil solution sampling for 13C, 14C analyses
May 2000:  Mattole River, CA soil chronosequence soil sampling for 13C, 14C analyses
1997-98: Santa Clara River (coastal CA) 1997-98 El Niño river organic carbon sampling
BOREAS N. Manitoba site soil sampling, August 1994
1996, 1999 R/V Melville 68 days (2 cruises) in Central Pacific and Southern Ocean
1996 R/V Revelle 7 days in Santa Monica, Santa Barbara basins
1995, 1996, 1998 R/V New Horizon 29 days (3 cruises) to Station M in NE Pacific

 Teaching Experience at UC Irvine:

1998 Guest lecturer, Introduction to Oceanography
1997 Teaching assistant, Introduction to Oceanography
1996 Laboratory instructor, General Chemistry
1994 Teaching Assistant, Quantum Chemistry

 Awards and Honors:
2002-2003 AAUW Postdoctoral Fellowship
1999 Sigma Xi Grants in Aid of Research Award
1998-99, 94-95 N.S.F. Graduate Research Traineeship, U.C. Irvine
1991-92 School of Publich Health Fellowship, Merit Assistantship, U.N.C.-Chapel Hill
1990-91 undergraduate math and physics major awards, Earlham College



Masiello, C.A., E.R.M. Druffel, and L.A. Currie (2002) Radiocarbon measurements of black carbon in aerosols and ocean sediments.   Geochimica et Cosmochimica Acta ,  66 , 1025-1036.

Masiello, C.A. and   E.R.M. Druffel.   (2001) Isotope geochemistry of the Santa Clara River. Global Biogeochemical Cycles, 15, 407-416.

Masiello, C.A. and E.R.M. Druffel (1998) Black carbon in deep-sea sediments, Science, 280, 1911-1913.

Masiello, C.A., E.R.M. Druffel, and J.E. Bauer (1998) Physical controls on dissolved inorganic radiocarbon varibility in the California Current, Deep-Sea Research part II . 45, 617-642.

Bauer, J.E., E.R.M. Druffel, D.M. Wolgast, S. Griffin, and C.A. Masiello (1998) Distributions of dissolved organic and inorganic carbon and radiocarbon in the Eastern North Pacific continental margin, Deep-Sea Research part II  45, 689-714.

Masiello, C.A., E.R.M. Druffel (in press, Geophysical Research Letters) Organic and Black Carbon 13C and 14 C through the Santa Monica Basin.

L.A. Currie, B.A. Benner, H. Cachier, R. Cary, J.C. Chow, E.R.M. Druffel, T.I. Eglinton, O. Gustafsson, P.C. Hartmann, J.I. Hedges, J.D. Kessler, T.W. Krchstetter, D.B. Klinedinst, G.A. Klouda, S.D. Kohl, J.V. Marolf, C.A. Masiello, T. Novakov, A. Pearson, K.M. Prentice, H. Puxbaum, J.G. Quinn, C.M. Reddy, H. Schmid, J.F. Slater, and S.A. Wise. A critical evaluation of interlaboratory data on total, elemental, and isotopic carbon in the carbonaceous particle reference material NIST SRM 1649a, in submission to Environmental Science and Technology .

Treseder, K.K., C.A. Masiello, J. Lansing, M.F. Allen (in submission to Geophysical Research Letters) Isotopic and genetic assessmetns of turnover of ectomycorrhizal fungi under N-fertilization.

Masiello, C.A., M. Torn, O.A. Chadwick, J. Southon (in prep for Geophysical Research Letters) Mineralogy and soil organic carbon storage across a northern California soil chronosequence.

S. G. Wakeham, J. Forrest, Y. GŽlinas, C. Alexander, C. Masiello and P. Leavitt (in prep for Environmental Science and Technology)   Aliphatic and aromatic hydrocarbons in lake Washington sediments - a 25-year retrospective.

Dickens, A.F., Gelinas, Y., Masiello, C.A., and Hedges, J.I. (in prep for Geochimica Cosmochimica Acta ) Presence and distribution of graphitic carbon off the Washington Coast.

Y. Gelinas, C. Masiello, M.-H. Veilleux, A.F. Dickens, J.I. Hedges andS.G. Wakeham (in prep for Global Biogeochemical Cycles ) Soot and Graphitic Black Carbon in Environmental Samples: Pitfalls of Thermal Oxidation Methods.


Masiello, C.A., Chadwick, O.A., Torn, M. Soil organic radiocarbon and mineralogy at two coastal California sites . December 2001 American Geophysical Union Meeting.

Treseder, K.K., Masiello, C.A., Lansing, J., Allen M.F. Isotopic and genetic assessments of ectomycorrhizal turnover under N-fertilization .  Ecological Society of America Spring Meeting, 2001.

Mayorga, E., Aufdenkampe, A.K., Masiello, C.A., Quay, P.D., Hedges, J.I., Richey, J.E., Krusche, A.V., Llerena, C.A., Forsberg, B.R., Quintanilla, J., DIC cycling from 14C And 13C isotopes in mountain and lowland rivers in the Amazon Basin. ASLO, Victoria, Canada, 2002.

Schmidt M.W.I., Masiello, C.A., Ball W.P., Currie, L.A., Czimczik C.I., Gelinas Y., Glaser B., Kuhlbusch   T.A.J., Prentice K.M., Skjemstad J.O., Smith D.M. 2001. Reference materials for organic geochemical studies of black carbon . 20th International Meeting on Organic Geochemistry, 10-14 Sept. 2001, Nancy, France, Vol 2, 97-98.

Wakeham, S., J. Forrest, A. Biersmith, Y. Gelinas, C. Alexander, and C. Masiello (2001) Aliphatic and aromatic hydrocarbons in Lake Washington sediments Ð A 25-year retrospective.   20 th International Meeting on Organic Geochemistry, Nancy, France.

Treseder, K.K., Masiello, C.A., Lansing, J., and M.F. Allen (2001) The use of radiocarbon to examine turnover under N fertilization in a major microbial group .  American Geophysical Union spring meeting, Baltimore.

Masiello, C.A., M. Torn, J. Southon, O.A. Chadwick, T. Pease, and S. Wakeham (2000) Mineralogy and carbon storage across a soil chronosequence .  American Geophysical Union fall meeting, San Francisco.

Masiello, C.A., M.W.I. Schmidt, W.P. Ball, L.A. Currie, J.O. Skjemstad, D.M. Smith (2000) Development of standards for organic geochemical studies of black carbon.   Gordon Research Conference on Organic Geochemistry, Plymouth, New Hampshire.

L.A. Currie, B.A. Benner, Jr., R. Cary, E.R.M. Druffel, T.I. Eglinton, P.C. Hartmann, J.D. Kessler, D.B. Klinedinst, G.A. Klouda, J.V. Marolf, C.A. Masiello, A. Pearson, J.G. Quinn, C.M. Reddy,   J.F. Slater, and S.A. Wise (2000) Interlaboratory Data on Elemental and Isotopic Carbon in the Carbonaceous Particle Reference Material, NIST SRM 1649a. Gordon Research Conference on Organic Geochemistry, Plymouth, New Hampshire.

Masiello, C.A., M. Torn, J. Southon, O.A. Chadwick (2000) Effects of mineralogy on the storage rates of organic carbon classes across a soil chronosequence .  17 th International Radiocarbon Conference, Jerusalem, Israel.

Masiello, C.A., E.R.M. Druffel, and S. Griffin (1999) Black carbon 14C in the Santa Monica basin:  riverine delivery and sedimentary accumulation.  Ninth Annual Goldschmidt conference, Harvard University, Cambridge, MA.

Masiello, C.A. Black carbon in ocean sediments and a small river , Dissertation Symposium in Chemical Oceanography (DISCO XV) NSF/ONR/NOAA, Honolulu, Hawaii, May 1999.

Masiello, C.A., E.R.M. Druffel, S. Griffin, J.E. Bauer, D. Wolgast, and M. Schrope (1998) Export of refractory carbon from the Santa Clara River, CA during the 1997-98 El Ni–o.   Fall AGU meeting, San Francisco, CA.

Masiello, C.A. and E.R.M. Druffel (1998) Black carbon in the ocean carbon cycle: connections to the DOC pool? Winter Ocean Sciences Meeting, San Diego, CA.

Masiello, C.A., E.R.M. Druffel, and S. Griffin (1997) Black carbon in oligotrophic ocean sediments. Gordon Conference on Chemical Oceanography, Meriden, NH.

Masiello, C.A., E.R.M. Druffel, and S. Griffin (1997) Abundance and radiocarbon content of black carbon in abyssal Northeast Pacific sediments.   16 th International Radiocarbon Conference, Groningen, the Netherlands.

Masiello, C.A., E.R.M. Druffel,   S. Griffin, and B.A. Gaza (1996) Black carbon aerosol input to Northeastern Pacific sediments .   Fall AGU meeting, San Francisco, CA.

Masiello, C.A., E.R.M. Druffel, S. Griffin, J.E. Bauer, D.M. Wolgast,   M. Kashgarian, and B.A. Gaza (1996) Radiocarbon studies of dissolved inorganic carbon in the Eastern North Pacific Ocean.   Winter Ocean Sciences meeting, San Diego, CA.

Druffel, E.R.M., J.E. Bauer, S. Griffin, C.A. Masiello, D.M. Wolgast, and M. Kashgarian (1996) Sources of carbon in the middle Atlantic Bight, Western North Atlantic Ocean:  A perspective from 14C studies, Ocean Sciences meeting, San Diego, CA.

Masiello, C.A., H.E. Jeffries, and K.G. Sexton (1993) Organic acids in the oxidation products of isoprene, Spring AGU meeting, Baltimore, MD.



Grants funded as P.I. ($222,554): Physical and chemical controls on carbon storage in U.S. soils, P.I. C.A. Masiello.  American Association of University Women (AAUW) 2002-2003 American Fellowship, $30,000.

Soil organo-mineral complexes as a predictor of soil carbon sequestration potential, P.I. C.A. Masiello, Co-P.I.s: O.A. Chadwick and S.E. Trumbore, DOE CLE $71,554, 2001-2002.

Stuffing carbon away:  mechanisms of carbon sequestration in soils .  P.I. C.A. Masiello.   Co-P.I.s: John Southon, Margaret Torn, Oliver Chadwick, Jennifer Harden, Susan Trumbore.  DOE LDRD $120,000, 2001-2002.

Isotope geochemistry of the Santa Clara River ,P.I. C.A. Masiello.   Sigma Xi GIA award, $1,000, 1999-2000.

Grants funded as Co-P.I.   ($890,154): Carbon cycle in soils:   role of organic matter/noncrystalline interactions.   P.I.s:  Isabelle Basile (U. Aix-Marseille), Ronald Amundson (U.C. Berkeley).   Co-investigators:  Masiello, Armand Masion, Stefano Caldarelli, Daniel Borschneck, JŽrome Balesdent, Cristina Castanha.  source:   France-Berkeley Fund, $10,000 2002-2003.

Effects of nitrogen deposition on sequestration of carbon in mycorrhizal fungi. P.I. Kathleen Treseder.  Co-I: Masiello.   $681,885.   NSF 2001-2004.

  Stuffing carbon away: how do mineralogy and precipitation control long-term carbon sequestration in soils?   P.I.:  John Southon Co.I. Masiello, $163,000.  Source: LLNL LDRD 2000-2001.  collaborators:   Oliver Chadwick, Julia Gaudinski, Jennifer Harden, Susan Trumbore, Margaret Torn, Stuart Wakeham.

Isotope and genetic studies to assess microbial carbon storage in natural and human-altered environments. co-P.I.s:   Kathleen Treseder, C.A. Masiello, Michael F. Allen. source:   LLNL minigrant.   $12,510, 2000-2001

Char and graphitic soot black carbon dynamics in marine sediments. P.I.:  John Hedges, Co-I: Masiello. collaborators: Yves Gelinas, Angela Dickens. source:   LLNL minigrant. $19,105, 2000-2001

Radiocarbon constraints on organic matter turnover in the Amazon River Basin:   Model conceptualization and validation .  P.I.:   John Hedges, Co-Is: Masiello, T. Brown.   collaborators: Anthony Aufdenkampe, Emilio Mayorga. source:   LLNL minigrant.   $3,654, 2000-2001.

Pending grants ($70,000): The oxidation state of soil organic carbon:   a new proxy for carbon storage mechanisms and land use change, P.I. Oliver Chadwick, co-P.I. Masiello, collaborators Jim Randerson, Jeff Baldock.   Kearney Foundation.

Additional collaborations: Radiocarbon and PAH signatures of particulate and dissolved organic carbon from the Eel River, collaborating with Sid Mitra (USGS-Menlo Park).

Radiocarbon signatures of lipid biomarkers across a northern California soil chronosequence; collaborating with Stuart Wakeham and Tamara Pease, Skiddaway Institute of Oceanography.

Radiocarbon signatures of pollutants in Lake Washington sediments ; collaborating with Stuart Wakeham, Tamara Pease.   

Isotopic and geochemical characterization of black carbon reference materials; collaborating with Michael W.I. Schmidt, Jan O. Skjemstad, Dwight M. Smith, Bill P. Ball, Lloyd Currie.