Bruce Selleck

      As noted in my welcoming comments, I have been in the department chair seat for the last two years and I hope that ithis will be my last for a while. Charlie McClennen stepped in for me during my sabbatical leave during the spring term when Nancy and I traveled to New Zealand and Australia from late January to mid-April. We had a wonderful two weeks on South Island and I was fortunate to collect a series of biogenic carbonate samples that included modern brachiopods which will be used for analytical work in my Marine Environments course this fall. While in Australia we were based at University of Wollongong where the School of Earth and Environmental Sciences graciously provided office space. I have been working on a project studying the petrology and stable isotope systematics of a somewhat unusual mineral pseudomorh - glendonite - which ios derived from recrystallized ikaite, a hydrous carbonate mineral that precipitates from water at temperatures below 4°C. Glendonites were first described in sediments from the Sydney Basin so Wollongong is a natural place to study these occurrences. Two colleagues fro UOW are collaborators on the project and we have presented some data already, and hope to publish a review article later this year. Our time in Australia also permitted a visit to Tasmania where I examined spectacular Permian glacigenic sediments and Miocene marine shoreline facies. Or final stop was Western Australia which included a week-long trek to Shark Bay, the mecca of all carbonate sedimentologists.

      My other research projects include work with Jim McLelland on the geochronology of Adirondack intrusive rocks and the late tectonic evolution of the Grenville orogen. I plan to continue field work in the Adirondacks over the next few years. William Peck, Art Goldstein and I are well underway with a project studying the fluid history of low-grade metamorphic systems using stable isotopic and fluid inclusion techniques on rocks from the Taconics, the Pyrenees and the Alps. We have a number of students involved in this work, which is funded by NSF. Another Project involves study of the fluid movement along an ancient fault system in the basement rocks of the Adirondack Lowlands and the infection of those fluids into the Paleozoic cover. This process leads to important hydrocarbon reservoirs in the subsurface of the Appalachian Basin, and the Adirondack Lowlands example provides a great opportunity to see these systems exposed at the surface.

      On the teaching front, I continue to teach Sedimentation and Stratigraphy, Hydrology and Surficial Geology, Hydrogeology and Marine Environments. I have introduced the use of Geographic Information Systems software tools in the 'Hydro' course, and use those tools myself in my research with students. I also teach in the 'OC' program every summer - this summer I did the leg that included Crown Point, where the weather was the best ever (some of you may remember that it always rains when I go there!) I hope that I can get back to more introductory level teaching when my term as chair expires this year, as I really enjoy Geology 101.