Bleamaster continues to work as an off-site scientist in San Antonio Texas where he performs geologic and geomorphic investigations of Mars and Venus.
On Mars, Bleamaster's work centers on evaluating the current and past distribution of volatiles, potential volatile reservoirs, and the nature of volatile migration through time and how they modify the geologic record. These efforts include geologic and morphologic mapping based on image interpretation, and morphometric and structural analyses using GIS.
In Hellas Planitia and the surrounding highlands (with D. Crown and S. Mest), Bleamaster is investigating crater morphology and distribution, and their respective interior deposits to evaluate the putative Hellas Lake hypothesis.
In Arabia Terra, Bleamaster is investigating the degree to which ancient Noachian structural (tectonic) fabrics have influenced subsequent modification processes and volatile sequestering mechanisms. Along the Arabia Terra Dichotomy Boundary, a wide variety of trough-like dissect the terrain. Documenting the different styles of formation and their subsequent modification can help in constructing and constraining models of dichotomy evolution.
Investigation along the Arabia Terra Dichotomy also includes two more specific areas of interest (Marwth Vallis and Nili Fossae). Geologic mapping of Mawrth and Nili will evaluate exposures of phyllosilicate (clay-bearing) material that are interbedded with other geologic units. Mawrth Vallis and Nili Fossae are two of the four candidate landing sites for MSL (Mars Science Laboratory.
On Venus, Bleamaster mapping of the Isabella Quadrangle (V50) is nearing completion. Detailed geologic mapping will assess local relative timing relationships of these events and help resolve the local geologic history. In addition, Bleamaster has started to map Helen Planitia (1/8 the surface of Venus) documenting volcanic morphologies and volcano-tectonic centers, 4 of which correlate with potential active centers.
Bleamaster is also working with the Tucson Unified School District (TUSD) to develop several teacher development workshops. Plans are to have two workshops in Fall 08 and Spring 08.
Bleamaster III, L.F. and Crown D.A., (2007, in review) Geologic Map of MTM -40277, -45277, -40272, and -45272 Quadrangles, Eastern Hellas Planitia Region of Mars.
Rodriguez, J.A.P., Kargel, J., Crown, D.A., Fairen, A.G., Baker, V., Montgomery, D.R., Bleamaster III, L.F., Strom, B., Dohm, J.M., Sasaki, S, and Furfaro, R. (2007, in review), Nature and Significance of Secondary Chaotic Terrains in Southern Circum-Chryse, Mars
Bleamaster III, L.F., Gregg, T.K.P., Tanaka, K.L., and Saunders, R.S., (2007) Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ 2007. USGS Open-File Report 2007-1233.
Bleamaster III. L.F., 2007, Geologic Mapping of Isabella Quadrangle (V50) and Helen Planitia, Venus, in Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ, eds., L.F. Bleamaster III, T.K.P. Greg, K.L. Tanaka, and R.S. Saunders, Open-File Report 2007-1233.
Bleamaster III, L.F., and Crown, D.A., 2007, Geology of MTM Quadrangles -40277, -40272, -45277, and -45272, Eastern Hellas Planita, Mars, in Abstracts of the Annual Meeting of Planetary Geologic Mappers, Tucson, AZ, eds., L.F. Bleamaster III, T.K.P. Greg, K.L. Tanaka, and R.S. Saunders, Open-File Report 2007-1233.
Berman, D.C., Crown, D.A., and Bleamaster III, L.F., 2007, Degradational Morphologies of Mid-Latitude Craters on Mars, Lunar and Planetary Science Conference XXXVIII, abstract 1400, Lunar and Planetary Institute, Houston (CD-ROM).
Bleamaster III, L.F., 2007, Volcano-Tectonism of Helen Planitia, Venus, Lunar and Planetary Science Conference XXXVIII, abstract 2434, Lunar and Planetary Institute, Houston (CD-ROM).
Crown, D.A., Berman, D.C., and Bleamaster III, L.F., 2007, Contemporary Gully Activity on Mars: Insights from Regional Geology, Lunar and Planetary Science Conference XXXVIII, abstract 1726, Lunar and Planetary Institute, Houston (CD-ROM).