Monterey Bay Aquarium Research Institute

Mapping Program
Guide Seamount

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Guide Seamount is about 16.6±0.5 million years old (Davis et al., in press). The seamount consists of four, nearly parallel volcanic ridges, separated by sediment-filled troughs, aligned parallel to magnetic anomalies in the underlying ocean crust and therefore parallel to the abandoned mid-ocean ridge that formed the crust. Guide Seamount looks virtually identical to Davidson Seamount, except it is smaller (approximately 16.5 kilometers by 5 kilometers). It rises about 1440 meters above the surrounding seafloor and reaches a minimum water depth of 1682 meters. The volume above the surrounding seafloor is about 130 km3. The lavas from Guide are alkalic basalt, hawaiite and mugearite composition with some pyroclastic deposits near the summit (Davis et al., in press)

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.

Guide Seamount data—20 meter grid cell size
(geographic coordinates)

Grid Sun Illuminated Image Acoustic Reflectivity Image
at 1/2 grid cell size
grids\GuideA.asc.gz
grids\GuideA.asc.gz
geoTIFFS\sunshade\GuideA.tif
geoTIFFS\sunshade\GuideA.tif
geoTIFFS\backscatter\GuideA.tif
geoTIFFS\backscatter\GuideA.tif.gz
Index Map Axial Volcano Gorda Ridge Cleft Segment Taney Seamounts
Guide, Gumdrop, Pioneer Seamounts Mendocino Fracture Zone President Jackson Seamount Davidson Seamount Vance Seamounts

Last updated:Oct. 02, 2013