The Darwin rise demise: the western Pacific guyot heights trace the trans-Pacific Mendocino fracture zone

Auteur(s) et Affiliation(s)

SMOOT, N.C.

Seafloor Data Base Division, Naval Ocanographic Office, Stennis Space Center, Stennis, MS, Etats-Unis

Description :
The proposed Darwin Rise of Menard (1964, 1984) failed the tests of an interior high and the patterns of guyots needed. Additionally, magnetics reveals the presence of a triangular area rather than the bilateral symmetry of a rise. Lastly, modern, multibeam bathymetry with nearly full coverage fails to reveal the presence of a fossil ridge. The hypothesis of Menard, therefore, is refuted. The multibeam bathymetry actually shows a different picture, that is, one of multiple zones of weakness through the study area. The NE-SW trend is the westward continuation of the Surveyor/Mendocino fracture zone swarm to the trench.

Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 1997, vol. 18, n°. 3-4, p. 223-235, Collation : Illustration, Références bibliographiques : 24 ref.

Date :
1997

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais