Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
THE ROLE OF CLIMATE IN STRATIGRAPHIC PATTERNS EXHIBITED BY LATE PALEOZOIC ROCKS EXPOSED IN KANSAS
Autore:
WEST RR; ARCHER AW; MILLER KB;
Indirizzi:
KANSAS STATE UNIV,DEPT GEOL,THOMPSON HALL MANHATTAN KS 66506
Titolo Testata:
Palaeogeography, palaeoclimatology, palaeoecology
fascicolo: 1-4, volume: 128, anno: 1997,
pagine: 1 - 16
SICI:
0031-0182(1997)128:1-4<1:TROCIS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
WESTERN UNITED-STATES; COAL-SWAMP VEGETATION; NORTH-AMERICA; SUPERCONTINENT; CYCLOTHEMS; MODELS;
Keywords:
CLIMATE; STRATIGRAPHY; CYCLOTHEMS; PERMIAN; PENNSYLVANIAN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
60
Recensione:
Indirizzi per estratti:
Citazione:
R.R. West et al., "THE ROLE OF CLIMATE IN STRATIGRAPHIC PATTERNS EXHIBITED BY LATE PALEOZOIC ROCKS EXPOSED IN KANSAS", Palaeogeography, palaeoclimatology, palaeoecology, 128(1-4), 1997, pp. 1-16

Abstract

Late Palaeozoic ''cyclothems'' of the midcontinental U.S. cannot be represented by a single ideal facies sequence. Rather, they encompass awide range of cycle types depending on their stratigraphic position. The exposed Late Palaeozoic (Pennsylvanian and Permian) rocks of Kansas, as compiled by Zeller (1968), can be divided into nine major lithofacies. These lithofacies were ordered based on their times of greatestabundance through the section. From oldest to youngest, they attain their peak abundance in the following order: (1) coal; (2) gray mudrocks and sandstones; (3) black mudrocks; (4) limestones; (5) cherty limestones; (6) fossiliferous mudrocks; (7) variegated mudrocks; (8) evaporites; and (9) variegated dolomitic siliciclastics. Climatically, thesenine lithofacies suggest a change from generally wetter, at the base,to generally drier, at the top of the section. This climatic trend was probably generated by a complex interaction of factors primarily driven by global tectonics. Climatic changes can be used to explain the five generally recognized types of lithofacies ''cyclothems'' in Kansas, and thus are a potential explanation for the changing stratigraphic patterns of the entire Late Palaeozoic time interval of Kansas, and perhaps elsewhere.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 16:26:48