See REFERENCES below
A number of large volcanoes protrude through the
West Antarctic Ice Sheet. Investigation of the petrology and petrogenetic
evolution of these volcanoes can provide insight into the tectonics
of West Antarctica. Furthermore, examination of the eruptive and
depositional environment of volcanic deposits of different ages
allows the past thickness of the West Antarctic Ice Sheet to be
reconstructed. Seven seasons of field work have been carried out
on the volcanoes of West Antarctica, focussing on detailed mapping
and sampling of these virtually unexplored volcanoes. Most recently,
detailed mapping, sampling and collection of GPS elevation data
were carried out at Mount Takahe, West Antarctica.
Link to Thom Wilch's poster discussion of work at Mt. Takahe (1998/99)
McIntosh, W.C. and Wilch, T.I., 1995a. Applications of 40Ar/39Ar dating of volcanic ash to Antarctic climate and glacial history- a review of some published and ongoing studies. Pliocene Antarctic Glaciation Workshop, 19-21 April, 1995, Woods Hole, MA.
McIntosh, W.C. and Wilch, T.I., 1995b. Late Pleistocene (223-125 ka) Plinian eruptions in Marie Byrd Land: Potential time horizons in West Antarctic ice cores. VII International Symposium of Antarctic Earth Sciences, Siena, Italy. P. 261.
McIntosh, W.C., LeMasurier, W.E., Ellerman, P.J., and Dunbar, N.W., 1985. A re- interpretation of glacio-volcanic interaction at Mount Takahe and Mount Murphy, Marie Byrd Land, Antarctica. Antarct. J. U.S., 20, 57-59.
Palais, J.M., Kyle, P.R., McIntosh, W.C., and Seward, D., 1988. Magmatic and phreatomagmatic volcanic activity at Mt. Takahe, West Antarctica, based on tephra layers in the Byrd Ice Core and field observations at Mt. Takahe. J. Volcanol. Geotherm. Res., 35, 295-317.
Panter, K.S., McIntosh, W.C., and Smellie, J.L., 1994. Volcanic history of Mt. Sidley, a major alkaline volcano in Marie Byrd Land, Antarctica. Bull. Volcanol., 56, 361-376.
Panter, K.S., Kyle, P.R., and Smellie, J.L., submitted. Petrogenesis of a phonolitic- trachyte succession at Mt. Sidley, West Antarctic Rift system, Marie Byrd Land. J. Petrol.
Panter, K.S., Kyle, P.R., Wilch, T.I., in press, Geochemistry of Late Cenozoic basalts from the Crary Mountains: characterization of mantle sources in Eastern Marie Byrd Land, Antarctica, accepted Earth and Planetary Science Letters.
Wilch, T.I. and McIntosh, W.C., 1995. Hydrovolcanism in Marie Byrd Land: Limits on late Cenozoic ice levels in West Antarctica. VII International Symposium of Antarctic Earth Sciences, Siena, Italy. P. 404.
Wilch, T.I., McIntosh, W.C., Panter, K.S., and Dunbar, N.W., 1993. Preliminary report on field investigations and argon-40/argon-39 geochronology of the Crary Mountains volcanoes, Marie Byrd Land, West Antarctica. Antarct. J. U.S., 28, 7-9.
Wilch, T.I., and McIntosh, W.C., in review, Eocene and Oligocene volcanism at Mt. Petras, Marie Byrd Land: implications for mid-Tertiary paleoenvironmental reconstructions in West Antarctica, accepted Antarctic Science.
Wilch, T.I., McIntosh W.C., and Dunbar, N.W., (1999) Late Quaternary
volcanic activity in Marie Byrd Land: potential 40Ar/39Ar -dated
time horizons in future
West Antarctic ice and marine cores, Geol. Soc. Am. Bull., 111,
1563-1580. ABSTRACT