Monterey Bay Aquarium Research Institute

Mapping Program

Ascension Slope

ascension_slope_1000x788.jpg (192006 bytes)
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North of the Ascension-Monterey Canyon system, the Ascension continental slope is incised with many gullies but does not contain sizable submarine canyons. The multibeam data show the presence of features that appear to be rills, rotational slumps, thin sediment flows, and possible carbonate mounds scattered about the upper slope and flat outer shelf floor (Greene et al., 1999).

Many of the gullies are similar to groundwater morphology described on land (Jones, 1990). These features converge at the distal edge of the continental shelf and upper slope (100-300 meters deep) to form incipient canyons which may be associated with fluid sapping (Greene et al., 1999). Landslides are prominent along this slope. Underlying the landslides and Quaternary sediment cover are rocks of Pliocene age (Purisima Formation equivalent), Miocene age (Monterey Formation) and Jurassic Cretaceous age.

MBARI provides these data "as is", with no warranty, express or implied, of the data quality or consistency. Data are provided without support and without obligation on the part of the Monterey Bay Aquarium Research Institute to assist in its use, correction, modification, or enhancement.

Ascencion Slope data—25 meter grid cell size
(geographic coordinates)

Grid Sun Illuminated Image Acoustic Reflectivity Image
at 1/2 grid cell size
grids\montereyb.asc.gz
grids\montereyb.asc.gz
geoTIFFS\sunshade\montereyb.tif
geoTIFFS\sunshade\montereyb.tif
geoTIFFS\backscatter\montereyb.tif
geoTIFFS\backscatter\montereyb.tif
Index Map Ascension
Slope
Monterey
Canyon
Sur Ridge/
Sur Canyon
Upper Lucia
Canyon
Lower Lucia
Canyon

Last updated: Oct. 08, 2013