de.pangaea.dataset874632 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-04-30T22:48:00Z https://doi.pangaea.de/10.1594/PANGAEA.874632 1983-01-01 publication https://doi.org/10.1594/PANGAEA.874632 Lewis, B T R author Snydsman, W E author McClain, J S author Holmes, M L author Lister, C R B author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital During an IPOD site survey at the mouth of the Gulf of California, an axial valley about 50 km long and 600 meters deep was found on the East Pacific Rise (EPR) south of the Tamayo Fracture Zone. Magnetic anomalies along the axis of the rise change character from the axial valley to normal sections of the EPR, and off-axis anomalies tend to meander slightly with age, probably indicating that the axial injection zone wanders slightly with time. Along the Baja California margin the magnetic lineations cut across the bathymetric expression of the margin, suggesting that the original rifting of Baja from the mainland occurred along a roughly linear zone. A decrease of heat flow and an increase in sediment thickness and water depth with age from 0 to 3.5 m.y. are consistent with concepts of plate tectonics. Seismic refraction data across and adjacent to the axis of spreading suggest the presence of low-velocity material under the axis, possibly the result of a magma chamber, and a crust which thickens rapidly away from the axis. completed NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database theme 1995-01-01 creation PANGAEA

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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation -109.203 -108.15 22.332 24.775 1972-04-08T00:00:00 1975-06-01T00:00:00 0.0 0.0 From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database. Event label thematicClassification Identification thematicClassification DEPTH, sediment/rock physicalMeasurement m m Position thematicClassification Visual description Deposit type thematicClassification Quantity of deposit thematicClassification Size thematicClassification Substrate type thematicClassification Sediment type thematicClassification Description thematicClassification Uniform resource locator/link to image thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.874632?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: HYPO01MV-053D * LATITUDE: 24.775000 * LONGITUDE: -109.203000 * DATE/TIME: 1972-04-08T00:00:00 * ELEVATION: -3038.0 m * LOCATION: Pacific Ocean * CAMPAIGN: HYPOGENE * BASIS: Melville * METHOD/DEVICE: Dredge 1972-04-08T00:00:00 EVENT LABEL: HYPO01MV-073D * LATITUDE: 22.332000 * LONGITUDE: -108.462000 * DATE/TIME: 1972-04-16T00:00:00 * ELEVATION: -2929.0 m * LOCATION: Pacific Ocean * CAMPAIGN: HYPOGENE * BASIS: Melville * METHOD/DEVICE: Dredge 1972-04-16T00:00:00 EVENT LABEL: TT099-DH09 * LATITUDE: 22.783333 * LONGITUDE: -108.150000 * DATE/TIME: 1975-06-01T00:00:00 * ELEVATION: -3159.0 m * LOCATION: Pacific Ocean * CAMPAIGN: TT099 * BASIS: Thomas G. Thompson (1964) * METHOD/DEVICE: Dredge 1975-06-01T00:00:00 EVENT LABEL: TT099-DH12 * LATITUDE: 22.950000 * LONGITUDE: -108.650000 * DATE/TIME: 1975-06-01T00:00:00 * ELEVATION: -2314.0 m * LOCATION: Pacific Ocean * CAMPAIGN: TT099 * BASIS: Thomas G. Thompson (1964) * METHOD/DEVICE: Dredge 1975-06-01T00:00:00 Related to 1983-01-01 publication https://doi.org/10.2973/dsdp.proc.65.106.1983 Lewis, B T R author Snydsman, W E author McClain, J S author Holmes, M L author Lister, C R B author documentDigital In: Lewis, B.T.R.; Robinson, P.; et al., Initial Reports of the Deep Sea Drilling Project, 65, Initial Reports of the Deep Sea Drilling Project, 65, U.S. Government Printing Office Source 1967-01-01 publication https://ntrl.ntis.gov/NTRL/dashboard/searchResults/titleDetail/PB177287.xhtml Grant, John Bruce author documentDigital Contributions of the Sedimentology Research Laboratory, Florida State University 19 99 pp Source 1992-01-01 publication https://doi.org/10.7289/V52Z13FT Grant, John Bruce author Moore, Carla J

carla.j.moore@noaa.gov

https://orcid.org/0000-0002-2610-8648 information author Alameddin, George author Chen, Kuiying author Barton, Mark author documentDigital National Geophysical Data Center, NOAA Further details 1992-01-01 publication https://doi.org/10.7289/V53X84KN Warnken, Robin R

rrw@luna.ngdc.noaa.gov

author Virden, William T author Moore, Carla J

carla.j.moore@noaa.gov

https://orcid.org/0000-0002-2610-8648 information author documentDigital National Geophysical Data Center, NOAA