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作者:Thomas S. Tobin , David Flannery , Francis J. Sousa
来源:[J].Cretaceous Research(IF 1.63), 2018, Vol.84, pp.407-419
摘要:Abstract(#br)Day Nunatak exposes an actively emergent stratigraphic section located on Snow Hill Island to the east of the Antarctic Peninsula. Strata exposed on Snow Hill Island were deposited in the James Ross Basin, which includes marine units of Cretaceous–Paleogene (K–...
作者:Rodrigo J. Suárez , Matías C. Ghiglione , Mauricio Calderón ...
来源:[J].Journal of South American Earth Sciences(IF 1.533), 2019, Vol.90, pp.471-486
摘要:Abstract(#br)The Nunatak Viedma within the Southern Patagonian Icefield has been considered as a volcanic center based on its geomorphologic features, despite the fact that field explorations by Eric Shipton determined its metamorphic nature 70 years ago. We carried out fieldwor...
作者:C. Ribecai
来源:[J].Review of Palaeobotany and Palynology(IF 1.933), 2005, Vol.144 (1), pp.3-12
摘要:... The Ferrar Group at Carapace Nunatak is composed of fluvial volcanic sandstones of the Carapace Sandstone Formation, which is overlain by the volcanic flows and breccias of the Kirkpatrick Basalt Formation. Fossiliferous horizons are present in both formations. Palynolog...
作者:S Bernstein , A.G Leslie , A.K Higgins ...
来源:[J].LITHOS(IF 3.779), 2000, Vol.53 (1), pp.1-20
摘要:Abstract(#br)Highly alkaline ultrabasic lavas which occur in the remote Nunatak Region of Northeast Greenland between latitudes 73°45′N and 74°25′N are approximately contemporaneous with the better known, voluminous Tertiary tholeiitic plateau basalts of the coastal re...
作者:M.W. Buechi , F. Kober , S. Ivy-Ochs ...
来源:[J].Quaternary Geochronology(IF 4.015), 2014, Vol.19, pp.135-147
摘要:... These nunatak areas kept their original shape, manifested in steep catchments with mean slopes up to 33°. Even though not glaciated, these catchments where significantly affected by base-level changes occurring as a consequence of phases of glacier advances and retreats. B...
作者:Helena Eklund , David J Cantrill , Jane E Francis
来源:[J].Cretaceous Research(IF 1.63), 2003, Vol.25 (2), pp.211-228
摘要:Abstract(#br)Charred and structurally preserved plant remains have been recovered from Late Cretaceous strata from Table Nunatak, Antarctica. The mesofossils, up to a few mm in length, represent structures from lycopods (megaspores), ferns (circinate rachides), conifers (wood, ...
作者:Valkonen , Vihma , Kirkwood ...
来源:[J].Tellus A: Dynamic Meteorology and Oceanography, 2010, Vol.62 (3), pp.319-332
摘要:Abstract(#br)Gravity waves over a small nunatak in Dronning Maud Land, Antarctica, were simulated applying the mesoscale model Weather Research and Forecasting (WRF).Most model experiments were made using three nested domains with 0.9 km horizontal resolution in the finest gri...
作者:TERESA VALKONEN , TIMO VIHMA , SHEILA KIRKWOOD ...
来源:[J].Tellus A(IF 2.736), 2010, Vol.62 (3), pp.319-332
摘要:ABSTRACT(#br)Gravity waves over a small nunatak in Dronning Maud Land, Antarctica, were simulated applying the mesoscale model Weather Research and Forecasting (WRF). Most model experiments were made using three nested domains with 0.9 km horizontal resolution in the finest gr...
作者:Kevin Ray Evans , Lawrence W. McKenna , Bruce S. Lieberman ...
来源:[J].Antarctic Science(IF 1.63), 2017, Vol.30 (1), pp.29-43
摘要:Abstract Postel Nunatak in the Patuxent Range has been previously mapped as Nelson Limestone but there was no biostratigraphic support for that interpretation until now. We confirm that limestone exposures at Postel Nunatak are at least partly correlated with the Nelson Limesto...
作者:J.T. Shafer , A.D. Brandon , T.J. Lapen ...
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2010, Vol.74 (24), pp.7307-7328
摘要:Abstract(#br)Combined 147 Sm– 143 Nd and 176 Lu– 176 Hf chronology of the martian meteorite Larkman Nunatak (LAR) 06319 indicates an igneous crystallization age of 193 ± 20 Ma (2 σ weighted mean). The individual 147 Sm– 143 Nd and 176 Lu– 176 Hf internal isochron age...

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