SciELO - Scientific Electronic Library Online

 
vol.61 número1Claves geológicas de los depósitos debidos al tsunami de 2004 en la costa SE de la India (estado de Tamil Nadu)Batimetría y estructuras geológicas activas en el alto Golfo de California índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Boletín de la Sociedad Geológica Mexicana

versión impresa ISSN 1405-3322

Resumen

VAZQUEZ-FIGUEROA, Viridiana et al. Bathymetry and hydrographic characteristics (May 2007) in the Consag and Wagner Basins, Northern Gulf of California, Mexico. Bol. Soc. Geol. Mex [online]. 2009, vol.61, n.1, pp.119-127. ISSN 1405-3322.

The northern Gulf of California encompasses a complex tectonic setting characterized by several oceanographic and climatic factors that continuously change water circulation and composition as well as sediment dynamics. CTD and echosounder data, collected during May 2007 in the Wagner and Consag basins, are here presented and analyzed, with the aim of determining the principal hydrographic features of the water column and the detailed bathymetry of the basins. Bathymetry is in agreement with fault-bounded, subsiding, pull-apart basins. The slopes that outline the eastern border of both basins coincide with the NNW-striking listric Wagner Fault. CTD results indicate that during the sampling period the seawater column was distinctly stratified, with the thermocline located in the upper 50 m, and only 32% of the stations present a mixing layer. The water temperature ranged from 23°C at the surface to 15°C at the sea bottom. Salinity ranged between 35.8 at the surface and 35.2 at the bottom, and a halocline was not present. A low salinity (35.32) seawater mass was identified, entering the basins from south to north at depths from 50 to 150 m. In addition, the T-S plot indicates the presence of Gulf of California Water.

Palabras llave : Seawater masses; thermocline; bathymetry; pull-apart basin; Wagner Fault.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons