Paleogeography and Paleoclimatology
Paleogeography and paleoclimates are central aspects of Project CRER that relate to all the other working groups. The initial, short-term, pilot project in paleogeograph is to prepare a map of landmasses, seas, highlands, and lowlands for the Ultra-thermal period, the latest Cenomanian to earliest Turonian. A longer-term goal is to prepare a second paleogeographic map for the cool period of relatively low sea level, early Aptian, that preceeded the Ultra-thermal.. In paleoclimatology, the overall goal is to supplement existing information on paleclimates for two intervals of the Cretaceous. Initially, the focus will be to characterize the global climate of the Ultra-thermal as an ancient analogue for a future greenhouse state of Planet Earth. The longer-term goal is to compile data on paleoclimate for the other and quite different state of the Cretaceous, the period from late Albian to the end of the Turonian. The climatic indicators that will be assembled include stabe isotope ratios, patterns of vegetation, chalks, ice-rafted sediments, bauxites, and latentes.
Unable to display preview. Download preview PDF.
- Barron, E.J., 1987. Cretaceous plate tectonic reconstructions. Palaeogeog., Palaeoclim., Palaeoecol., 59: 3–30.Google Scholar
- Douglas, R.G., and Woodruff, F., 1981. Deep-sea benthic foraminifera. In Emiliani, C (ed), The Sea, 7, John Wiley, New York, 1233–1327.Google Scholar
- Frakes, L.A., 1979. Climates Throughout Geologic Time, Elsevier, New York, 310 pp.Google Scholar
- Frakes, L.A. et. al., 1987. Australian Cretaceous shorelines, stage by stage. Palaeogeog., Palaeoclim., Palaeoecol., 59: 31–48.Google Scholar
- Francis, J.E., 1986. Growth rings in Cretaceous and Tertiary wood from Antarctica and their palaeoclimatic implications. Palaeo., 29: 665–684.Google Scholar
- Gregory, R.T., Douthitt, C.B., Duddy, I.R., Rich, P.V. and Rich, T.H. 1989. Oxygen isotopic composition of carbonate concretions from the Lower Cretaceous of Victoria, Australia: Implications for the evolution of meteoric waters of the Australian continent in a paleopolar environment. Earth Plan. Sci. Letters, in press.Google Scholar
- Schwarzbach, M., 1974. Das Klima der Vorzeit, 3rd edit., Ferdinand Enke, Stuttgart, 380.Google Scholar
- Scotese, C., L.M. Gahagan, M.Ross, J.Y. Royer, R.D. Mueller, D.Nurnberg, C.L. Mayers, L.A. Lawyer, R.L. Tomlins, J.S. Newman, C.E. Heubeck, J.K. Winn, L. Deckley, and J.G. Slater, 1987, Atlas of Mesozoic and Cenozoic Plate Tectonic Reconstructions, Tech, Report 90, Univeristy of Texas, Institute for Geophysics, Austin, Texas 78759.Google Scholar
- Spicer, R.A., 1987. The significance of the Cretaceous flora of northern Alaska for the reconstruction of the climate of the Cretaceous. Geol. Jabrbuch, A96: 265–291.Google Scholar
- Vakrameev, V.A., 1978. The climates of the northern hemisphere in the Cretaceous in the light of paleobotanical data. Palaeont. Journ., 12: 143–154.Google Scholar
- Ziegler, A.M., Raymond, A.L., Gierlowski, T.C., Horrell, M.A., Rowley, D.B. and Lottes, A.L., 1987. Coal, climate and terrestrial productivity: the present and early Cretaceous compared. In Scott, A.C. (ed.), Coal and Coal-bearing Strata: Recent Advances, Geol. Soc. Spec. Publ. 32, 25–49.Google Scholar