Geology Department - Colorado College

Paul Myrow - Research Programs

Neoproterozoic and Cambrian deposits of the Transantarctic Mountains

Myrow et al. 2002

Photo: Large, light-colored archeocyathan reefs (white arrows), tens of meters thick, in the Lower Cambrian Shackleton Formation, Holyoake Range, Antarctica. Bedding is vertical and stratigraphic up is to right. Reefs are surrounded by shale, nodular carbonate and shale, and fine-grained sandstone. These coarsen upwards into alluvial fan conglomerate. The drowning of the reef and the progradation of an alluvial fan complex is the record of the initial active tectonic stage of the Ross Orogeny.

Refereed Publications/Guidebooks:

Goodge, J.W., Myrow, P.M., Williams, I.S., and Bowring, S., 2002, Age and provenance of the Beardmore Group, Antarctica: constraints on Rodinia supercontinent breakup: Journal of Geology, v. 110, p. 393-406.

Goodge, J.W., Myrow, P.M., Phillips, D., Fanning, C.M., and Williams, I.S., in press, Siliciclastic record of rapid denudation in response to convergent-margin orogenesis, Ross Orogen, Antarctica, in Bernet, M., and Spiegel, C., eds., Detrital Thermochronology — dating of exhumation and landscape evolution in mountain belts: Geological Society of America Special Publication.

Goodge, J.W., Williams, I.S., and Myrow, P.M., in press, Provenance of Noeproterozoic and lower Paleozoic siliciclastic rocks of the central Ross Orogen, Antarctica: detrital record of rift- to active-margin sedimentation: Geological Society of America Bulletin.

Myrow, P.M., Fischer, W., and Goodge, J.W., 2002, Wave-modified turbidites: combined-flow shoreline and shelf deposits, Cambrian, Central Transantarctic Mountains: Journal of Sedimentary Research, v. 72, p. 641-656.

Myrow, P.M., Pope, M., Goodge, J.W., and Fischer, W, 2002, Depositional history of pre-Devonian strata and timing of Ross Orogenic tectonism in the central Transantarctic Mountains: Geological Society of America Bulletin, v. 114, p. 1070-1088.

updated on 09/09/2009