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Bathymetry
GMRT World Map (2009)
Fri, 05/22/2009 - 15:28 — mgds
The Global Multi-Resolution Topography (GMRT) synthesis is a continuously-updated compilation of seafloor topography including multibeam bathymetry data from throughout the global and coastal oceans (view contributors). It is maintained as a multi-resolution gridded digital elevation model of seafloor bathymetry to ~100 m spatial resolution.
Kane Fracture Zone - 3D View (2008)
Fri, 07/11/2008 - 17:43 — mgds
The viewer is looking in a west-north-westerly direction along the transform fault in the Kane fracture zone, where the Africa Plate (upper right) and the North Atlantic Plate (left) are formed. This fracture zone is located in the central Atlantic ocean, on the slow-spreading Mid-Atlantic ridge between Africa and the Caribbean Sea. Shipboard multibeam bathymetry provides this closeup 3D view of the ocean floor; the checkerboard effect seen in part of the image is an artifact of the pattern made by the ships' tracks.
Species (common):
Year: 2008
Details: Mid-Ocean Ridge
Media Type: Map
Hawaii 3D (2008)
Thu, 07/10/2008 - 15:31 — mgds
This three-dimensional view of the entire chain of islands that form the Hawaiian archipelago show how the islands rise individually from the deep sea. The Hawaiian Islands were formed by volcanoes that formed as the Pacific plate moved over a hotspot in the mantle.
Species (common):
Year: 2008
Details: Hawaii
Media Type: Map
Data Type: Bathymetry
Device Type: Sonar:Multibeam
Feature:
Investigator: MGDS
Chief Scientist:
Species:
Perspective view of bathymetry at Vema Transform (2003)
Mon, 08/31/2009 - 15:31 — mgds
The Vema transform region viewed from the northeast. Figure is based on multibeam data obtained during cruises EW9305, and S-19 and S-22 (RV Akademik N. Strakhov). The Vema lithospheric section (VLS) is clearly visible. Location of magnetic chrons C5 and C6, of the Nautile submersible profiles, and of the rocks sampled along the VLS, are indicated. The inset shows a satellite-derived gravity image of the Central Atlantic, where the Vema fracture zone (FZ), the transverse ridge and the long-lived EMARS can be identified.
Species (common):
Year: 2003
Details:
Media Type: Map
Perspective view of EPR AST (2001)
Wed, 04/15/2009 - 20:44 — mgds
Perspective view of the eruptive fissure along the axis of the East Pacific Rise from 9°49N to 9°51N looking to the north. This region is the site of documented volcanic eruptions in 1991-92 and 2006. Image is created from very high resolution bathymetry data gridded at 5 meter grid interval collected with the Autonomous Underwater Vehicle ABE. Data from Fornari et al., AGU Monograph 148, 2004. Image made using GeoMapApp.
Species (common):
Year: 2001
Details:
Media Type: Map
Data Type: Bathymetry
Device Type: Sonar
Feature: EPR:9N:9_50
High Resolution Bathymetry of Faulty Towers Complex (1997)
Wed, 04/15/2009 - 14:58 — mgds
This centimeter-scale resolution bathymetric image of the east face of the Faulty Towers and Twin Peaks Complexes was formed using a 675 kHz scanning sonar mounted on the ROV Jason I. It was compiled from 115 precisely navigated vertical and down-looking surveys using Jason under remote control. The corresponding digital still mosaic of Faulty Towers is shown in the image Photomosaic of Faulty Towers at Mothra.
Species (common):
Year: 1997
Details:
Media Type: Map
Data Type: Bathymetry
Central America Focus Site activity map (2008)
Thu, 02/05/2009 - 17:01 — mgds
Sources: ODP sites - Morris et al., MARGINS Newsletter 10, Spring 2003. Fluid flow meters - Deshon et al. 2003, Brown,The Seismogenic Zone Revisited, Snowbird, Utah 6-21 March, 2003, and Tryon, pers. com. 2005. SEIZE seismic stations and OBSs-Syracuse et al., 2008,& and DeShon et al., 2003.TUCAN seismic stations- TUCAN website. Heat flow - Fisher et al., 2003 and Hutnak et al., 2006, GJI including MARGINS and non-MARGINS data. Swath bathymetry and wide angle profiles - McIntosh et al., MARGINS Newsletter 8, Spring 2002. Multichannel seismic (MCS) - McAdoo et al., Geophys. Res.
Gulf of California Focus Site activity map (2008)
Thu, 02/05/2009 - 16:54 — mgds
MARGINS Gulf of California Focus Site activity map showing instrument and profile line locations. Source: * MGDS MARGINS Data Portal. # NARS-Baja Project website. ^ IRIS permanent Seismic Network/ UNAVCO sites through GeoMapApp WFS layer. + PETDB/GEOROC/NAVDAT databases from GeoMapApp.
Species (common):
Year: 2008
Details:
Media Type: Map
Data Type:
Device Type:
Feature: GulfOfCalifornia
Izu-Bonin-Marianas Focus Site activity map (2008)
Thu, 02/05/2009 - 16:41 — mgds
MARGINS Izu-Bonin-Mariana (IBM) Focus Site activity map showing instrument and profile line locations. Sources: Melt Inclusions: A. Kent; Magmatic Volatiles: Hilton and Fischer; Arc front volcanoes: Syracuse & Abers, 2006 G-Cubed; ODP/DSDP sites: Janus Database; Analysis of DSDP Samples -- Hickey-Vargas, pers. comm. 2005 and Reagan, pers. com. 2005; 2004 JAMSTEC multibeam and Shinkai 6500 dives -- Reagan pers com.
Izu-Bonin-Marianas Focus Site activity map (blow up) (2008)
Thu, 02/05/2009 - 16:29 — mgds
MARGINS Izu-Bonin-Mariana (IBM) Focus Site activity map showing instrument and profile line locations. Sources: ODP/DSDP sites – ODP data and (DSDP) . OBS locations, EW0203 and EW0202 shiptracks (multichannel seismic , swath bathymetry, gravity and magnetic data), and JAMSTEC active source refraction line - Calvert et al., 2008, and MGDS. Geochemistry and geochronology studies (Reagan et al.) - Reagan, pers. com., 2005. Guguan cross-chain HMR-1 sonar survey and dredge sampling – Stern et al. , 2006.