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- Vance_Seamounts abstract "The Vance Seamounts are a group of seven submarine volcanoes located west of the Juan de Fuca Ridge. Most of the seamounts contain a caldera. They are the southernmost of several near-ridge chains located on the Pacific Plate, stemming from the Juan de Fuca Ridge.The easternmost five of the seven were surveyed using SeaBeam bathymetry. A chemical analysis of the lavas of the volcanoes indicated that the materials erupted from the volcanoes are relatively primitive. With the exception of one, the volcanoes form a nearly linear chain of circular volcanic cones. The second volcano from the northwest is not discretely shaped like the rest, rather it is a rough structure of lava cones and flows, which cover an area of at least 25 km × 10 km (16 mi × 6 mi). The six conical volcanoes (not including the odd one) range from 15 to 67 km3 (4 to 16 cu mi) in volume, averaging 34 ± 15 km3 (8 ± 4 cu mi).Most of the volcanoes have gently sloping plateaus, in conformity with their low shield volcano–like profiles, which have been heavily modified by multiple calderas. These are generally very shallow, having been formed then filled almost completely by younger flows, leaving only parts of the rims untouched. Some also have landslide debris deposits near the base of the caldera rims, and several have since been breached (their sides have collapsed). Small cones lay along the seafloor surrounding the main formation. The southeastern volcanoes also have low-level parallel faults arranged linearly against the Juan de Fuca Ridge.The construction of the cones left a lot of debris scattered across the ocean surface, much of which is aligned parallel to the ridge axis. The largest of these cones are nearly 2 km (1 mi) across, whereas the smallest appear to be only a few hundred meters in diameter.In 2006, an expedition was conducted by the Monterey Bay Aquarium Research Institute on the seamount formations.".
- Vance_Seamounts wikiPageExternalLink VanceA.jpg.
- Vance_Seamounts wikiPageExternalLink index.htm.
- Vance_Seamounts wikiPageID "13544028".
- Vance_Seamounts wikiPageRevisionID "605442136".
- Vance_Seamounts country United_States.
- Vance_Seamounts group "7".
- Vance_Seamounts hasPhotoCollection Vance_Seamounts.
- Vance_Seamounts map VanceA.jpg.
- Vance_Seamounts mapCaption "Bathymetric mapping of the group.".
- Vance_Seamounts name "President Jackson Seamounts".
- Vance_Seamounts type Mountain_range.
- Vance_Seamounts type Submarine_volcano.
- Vance_Seamounts subject Category:Ridge_volcanoes.
- Vance_Seamounts subject Category:Seamount_chains.
- Vance_Seamounts subject Category:Seamounts_of_the_Pacific_Ocean.
- Vance_Seamounts subject Category:Submarine_volcanoes.
- Vance_Seamounts type Abstraction100002137.
- Vance_Seamounts type AmorphousShape113867492.
- Vance_Seamounts type Attribute100024264.
- Vance_Seamounts type Crack109258715.
- Vance_Seamounts type GeologicalFormation109287968.
- Vance_Seamounts type Location100027167.
- Vance_Seamounts type Mountain109359803.
- Vance_Seamounts type NaturalElevation109366317.
- Vance_Seamounts type Object100002684.
- Vance_Seamounts type Opening109379111.
- Vance_Seamounts type PhysicalEntity100001930.
- Vance_Seamounts type RidgeVolcanoes.
- Vance_Seamounts type Seamount109427752.
- Vance_Seamounts type SeamountsOfThePacificOcean.
- Vance_Seamounts type Shape100027807.
- Vance_Seamounts type Space113910384.
- Vance_Seamounts type SubmarineVolcanoes.
- Vance_Seamounts type Vent109470550.
- Vance_Seamounts type YagoGeoEntity.
- Vance_Seamounts type YagoLegalActorGeo.
- Vance_Seamounts type YagoPermanentlyLocatedEntity.
- Vance_Seamounts comment "The Vance Seamounts are a group of seven submarine volcanoes located west of the Juan de Fuca Ridge. Most of the seamounts contain a caldera. They are the southernmost of several near-ridge chains located on the Pacific Plate, stemming from the Juan de Fuca Ridge.The easternmost five of the seven were surveyed using SeaBeam bathymetry. A chemical analysis of the lavas of the volcanoes indicated that the materials erupted from the volcanoes are relatively primitive.".
- Vance_Seamounts label "Vance Seamounts".
- Vance_Seamounts sameAs m.03c8ydm.
- Vance_Seamounts sameAs Q7914055.
- Vance_Seamounts sameAs Q7914055.
- Vance_Seamounts sameAs Vance_Seamounts.
- Vance_Seamounts wasDerivedFrom Vance_Seamounts?oldid=605442136.
- Vance_Seamounts isPrimaryTopicOf Vance_Seamounts.