Permian-Triassic Strata for Southern Victoria Land, AntarcticaEntry ID: 0440919
Abstract: The data set consist of rocks samples, stratigraphic columns, and paleocurrent data.
This project studies fossils from two to three hundred million year old rocks in the Allan Hills area of Antarctica. Similar deposits from lower latitudes have been used to develop a model of Permo-Triassic climate, wherein melting of continental glaciers in the early Permian leads to the ... establishment of forests in a cold, wet climate. Conditions became warmer and dryer by the early Triassic, inhibiting plant growth until a moistening climate in the late Triassic allowed plant to flourish once again. This project will test and refine this model and investigate the general effects of climate change on landscapes and ecosystems using the unique exposures and well-preserved fossil and sediment records in the Allan Hills area. The area will be searched for fossil forests, vertebrate tracks and burrows, arthropod trackways, and subaqueously produced biogenic structures, which have been found in other areas of Antarctica. Finds will be integrated with previous paleobiologic studies to reconstruct and interpret ecosystems and their changes. Structures and rock types documenting the end phases of continental glaciation and other major episodic sedimentations will also be described and interpreted. This project contributes to understanding the: (1) evolution of terrestrial and freshwater ecosystems and how they were affected by the end-Permian extinction, (2) abundance and diversity of terrestrial and aquatic arthropods at high latitudes, (3) paleogeographic distribution and evolution of vertebrates and invertebrates as recorded by trace and body fossils; and (3) response of landscapes to changes in climate.
In terms of broader impacts, this project will provide an outstanding introduction to field research for graduate and undergraduate students, and generate related opportunities for several undergraduates. It will also stimulate exchange of ideas among research and primarily undergraduate institutions. Novel outreach activities are also planned to convey Earth history to the general public, including a short film on the research process and products, and paintings by a professional scientific illustrator of Permo-Traissic landscapes and ecosystems.
(Click for Interactive Map)
Start Date: 2005-07-01Stop Date: 2009-06-30
Paleo Temporal Coverage
Paleo Start Date: Carboniferous
Paleo Stop Date: Triassic
Access Constraints None
Use Constraints Please cite service provider.
Data Set Progress
Distribution Media: Online
Distribution Size: 351 KB
Distribution Format: .mov file
Fees: No Cost
Role: CLIMATE DIAGNOSTIC RECORD AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: MD
Postal Code: 20771
Role: TECHNICAL CONTACT
Email: info at mri-jma.go.jp
Meteorological Research Institute (MRI) Japan Meteorological Agency (JMA) 1-1 Nagamine, Tsukuba-shi, Ibaraki-ken 305-0052
Gent, P. R. and J. C. McWilliams, 1990: Isopycnal mixing in ocean circulation
models. J. Phys. Oceanogr., 20, 150-155.
Mellor, G. L. and P. A. Durbin, 1975: The structure and dynamics of the ocean
surface mixed layer. J. Phys. Oceanogr., 5, 718-728.
... Mellor, G. L. and T. Yamada, 1974: A hierarchy of turbulence closure models
for planetary ... boundary layers. J. Atmos. Sci., 31, 1791-1806.
Mellor, G. L. and T. Yamada, 1982: Development of a turbulence closure model
for geophysical fluid problems. Rev. Geophys. Space Phys., 20, 851-875.
Noda, A., S. Yukimoto, S. Maeda, T. Uchiyama, K. Shibata, and S. Yamaki, 2001:
A new Meteorological Research Institute coupled GCM (MRI-CGCM2). Transient
response to greenhouse gas and aerosol scenarios. CGER's Supercomputer
Monograph Report, 7, 63pp, NIES, Japan.
Randall, D. and D.-M. Pan, 1993: Implementation of the Arakawa-Schubert
cumulus parameterization with a prognostic closure. Meteorological
Monograph/The representation of cumulus convection in numerical models, 46,
Shibata, K. and T. Aoki, 1989: An infrared radiative scheme for the numerical
models of weather and climate. J. Geophys. Res., 94, 14923-14943.
Shibata, K. and A. Uchiyama, 1992: Accuracy of the delta-four-stream
approximation in inhomogeneous scattering atmospheres. J. Meteor. Soc. Japan,
Shibata, K., H. Yoshimura, M. Ohizumi, M. Hosaka, and M. Sugi, 1999: A
simulation of troposphere, stratosphere and mesosphere with an MRI/JMA98 GCM.
Pap. Meteor. Geophys, 50, 15-53.
Yukimoto, S., and A. Noda, 2002: Improvements of the Meteorological Research
Institute global ocean-atmosphere coupled GCM (MRI-CGCM2) and its climate
sensitivity. CGER's Supercomputer Activity Report, 10, 37-44, NIES, Japan.
Yukimoto, S., A. Noda, A. Kitoh, M. Sugi, Y. Kitamura, M. Hosaka, K. Shibata,
S. Maeda, and T. Uchiyama, 2001: The new Meteorological Research Institute
coupled GCM (MRI-CGCM2). Model climate and variability. Pap. Meteor.
Geophys., 51, 47-88.
Creation and Review Dates
DIF Creation Date: 2008-07-28
Last DIF Revision Date: 2009-05-28