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Titolo:
LARGE-SCALE SPATIAL PATTERNS IN TOPOGRAPHY AT ALPHA-REGIO, VENUS
Autore:
FINN VS; BAKER VR; DOLGINOV AZ; GABITOV I; DYACHENKO A;
Indirizzi:
UNIV ARIZONA,DEPT GEOSCI TUCSON AZ 85721 LUNAR & PLANETARY INST HOUSTON TX 77058 LD LANDAU THEORET PHYS INST MOSCOW RUSSIA
Titolo Testata:
Geophysical research letters
fascicolo: 14, volume: 22, anno: 1995,
pagine: 1901 - 1904
SICI:
0094-8276(1995)22:14<1901:LSPITA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
TECTONICS; MAGELLAN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
V.S. Finn et al., "LARGE-SCALE SPATIAL PATTERNS IN TOPOGRAPHY AT ALPHA-REGIO, VENUS", Geophysical research letters, 22(14), 1995, pp. 1901-1904

Abstract

Hypsometric topographic analysis of Magellan altimetry data at Alpha Regio results in a multimodal distribution. Planimetric display of thespatial distribution for altitudes close to each mode reveals large-scale ring-like and crescentic patterns. The latter result from the intersection of horizontal altitude ranges with sloping patterns that arequasicircular in shape. The spatial patterns of topographic features near Alpha Regio have the following attributes: (1) quasicircular shapes of individual elements; (2) a hierarchy of distinctive sizes for those elements, with diameters of various elements at approximately 2800, 1500, 500-700, and 200 km; and (3) a large-scale arrangement or pattern in which the 1500-km highland plateau of Alpha Regio is surroundedby a ring of 500-km structures, all of which constitute a 2800-km megastructure. We hypothesize that the intricate patterns of hierarchicalscaling for large-scale spatial elements of Venusian topography result from corresponding complexity in Venusian mantle convection.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 10:00:37