Zobrazeno 1 - 10
of 57
pro vyhledávání: '"C. Blaine Cecil"'
Autor:
C. Blaine Cecil, William A. DiMichele, Jeffrey M. Rahl, Frank T. Dulong, Lauren Michel, Scott D. Elrick
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 618:111521
Publikováno v:
Journal of Sedimentary Research. 88:743-752
Among the numerous models that have been suggested for the primary and predominant source of silica for chert, we suggest that eolian dust is worthy of further considerations. Such considerations are supported by the common association of Phanerozoic
Publikováno v:
Geological Society of America Abstracts with Programs.
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
C. Blaine Cecil
Publikováno v:
The Sedimentary Record. 13:4-10
Publikováno v:
Comptes Rendus Geoscience. 346:159-168
The Pennsylvanian portion of the Late Paleozoic Ice Age was characterized by stratigraphic repetition of chemical and siliciclastic rocks in the equatorial regions of the Pangean interior. Known as “cyclothems”, these stratigraphic successions ar
Autor:
Isabel P. Montañez, C. Blaine Cecil
Publikováno v:
International Journal of Coal Geology. 119:41-55
Nonmarine limestones are a key component of the upper Middle Pennsylvanian through lower Permian succession in the Appalachian Basin. Previous interpretations of their environments of deposition range from brackish coastal mudflats to hydrologically
Autor:
Roberta Sirmons, William A. DiMichele, Viktoras Skema, C. Blaine Cecil, Hans Kerp, Nick Fedorko, Bascombe M. Blake
Publikováno v:
International Journal of Coal Geology. 119:56-78
The Dunkard Group is the youngest late Paleozoic rock unit in the Central Appalachian Basin. Its age, however, remains controversial. In its southern and western two-thirds the Dunkard is comprised largely of red beds, sandstone and siltstone channel
Autor:
C. Blaine Cecil
Publikováno v:
International Journal of Coal Geology. 119:21-31
Autocyclic and allocyclic processes controlled the lithostratigraphy of strata that accumulated in the central Appalachian foreland basin during the Pennsylvanian and the transition to the Permian. The transition strata, from bottom to top, include t
Publikováno v:
International Journal of Coal Geology. 83:329-344
Wetland floras narrowly define perceptions of Pennsylvanian tropical ecosystems, the so-called Coal Age. Such wetlands reflect humid to perhumid climate, leading to characterizations of Pennsylvanian tropics as everwet, swampy. These views are biased