Joyce Brannon

Senior Research Scientist
Ph.D., Washington University, 1984

Dr. Brannon's research interests have included trace element characterization of lunar and meteoritic materials, geochemical characterization of physio-chemical processes predominating during the evolution of mafic magmas, development of clean and mass spectrometry labs, early solar system isotopic structure and geochronology, isotopic stratigraphy of sediments, Sr isotopes as applied to diagenesis of carbonate sediments, isotopic evolution of ore-forming fluids for Mississippi Valley-type (MVT) mineralization, and radiometric dating of ore-deposits using ²³⁸U-²⁰⁶Pb and ²³²Th-²⁰⁸Pb for calcite and ⁸⁷Rb-⁸⁶Sr for sphalerite.

Kitts B. K., Podosek F. A., Nichols R. H. Jr., Brannon J. C., Ramezani J., Korotev R. L., and Jolliff B. L. (2003) Isotopic composition of surface-correlated chromium in Apollo 16 lunar soils.Geochim. Cosmochim. Acta 67, 4881–4893.

F. A. Podosek, U. Ott, J. C. Brannon, R. H. Nichols, S. Specht, K. Kitts, C. Jennings and J. R. Dougherty. (2002) Thoroughly Anomalous Chromium II. Orgueil and Semarkona. Submitted to Geochimica et Cosmochimica Acta.

Leach, D.L., Bradley, D., Lewchuk, M. T., Symons, D. T. A., de Marsily, G. and Brannon, J. (2001) Mississippi Valley-type lead-zinc deposits through geological time: implications from recent age dating research, Miner Deposita 36, 711-740.

Podosek F. A., Nichols R. H., Brannon J. C., Meyer B. S., Ott U., Jennings C. L. and Luo N. (2000) Potassium, stardust and the last supernova. Geochim. Cosmochim. Acta 64, 2351-2362.

Coveney, R. M., Ragan, V. M., Brannon, J. C. (2000) Temporal benchmarks for modeling Phanerozoic flow of basinal brines and hydrocarbons in the southern Midcontinent based on radiometrically dated calcite, Geology 28, 795-798.

Brannon J. C., Cole S. C., Podosek F. A., Ragan V. M., Coveny Jr. R. M., Wallace M. W. and Bradley A. J. (1996) Th-Pb and U-Pb dating of ore-stage calcite and Paleozoic fluid flow. Science 271, 491-493.

Brannon, J. C., Podosek, F. A., McLimans, R. K., (1992) Alleghenian age of the Upper Mississippi Valley zinc-lead deposit determined by Rb-Sr dating of sphalerite, Nature 356, 509-511.

See also Department Publications

314-935-5619	joyce@levee.wustl.edu
314-935-4083	personal page