Lewis B T R Snydsman W E McClain J S Holmes M L Lister C R B 1983 Annotated record of the detailed examination of Mn deposits at the mouth of the Gulf of California during an IPOD Site Survey prior to DSDP Leg 65 dataset https://doi.org/10.1594/PANGAEA.874632 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. Lewis B T R Snydsman W E McClain J S Holmes M L Lister C R B 1983 Site Survey Results at the Mouth of the Gulf of California, Leg 65, Deep Sea Drilling Project book chapter 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 https://doi.org/10.2973/dsdp.proc.65.106.1983 Grant John Bruce 1967 A comparison of the chemistry and mineralogy with the distribution and physical aspects of marine manganese concretions of the Southern Oceans Contributions of the Sedimentology Research Laboratory, Florida State University 19 https://ntrl.ntis.gov/NTRL/dashboard/searchResults/titleDetail/PB177287.xhtml 99 pp Grant John Bruce Moore Carla J carla.j.moore@noaa.gov 0000-0002-2610-8648 Alameddin George Chen Kuiying Barton Mark 1992 The NOAA and MMS Marine Minerals Geochemical Database National Geophysical Data Center, NOAA https://doi.org/10.7289/V52Z13FT Warnken Robin R rrw@luna.ngdc.noaa.gov Virden William T Moore Carla J carla.j.moore@noaa.gov 0000-0002-2610-8648 1992 The NOAA and MMS Marine Minerals Bibliography National Geophysical Data Center, NOAA https://doi.org/10.7289/V53X84KN -109.203 -108.15 22.332 24.775 -108.61625000000001 23.210083250000004 1972-04-08T00:00:00 1975-06-01T00:00:00 0.0 0.0 not specified NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database https://wiki.pangaea.de/wiki/NOAA-MMS HYPO01MV-053D 24.775 -109.203 Pacific Ocean -3038.0 1972-04-08T00:00:00 HYPOGENE HYPOGENE 1972-04-01T00:00:00 1972-04-01 1972-04-20T00:00:00 1972-04-20 Melville Melville Dredge DRG HYPO01MV-073D 22.332 -108.462 Pacific Ocean -2929.0 1972-04-16T00:00:00 HYPOGENE HYPOGENE 1972-04-01T00:00:00 1972-04-01 1972-04-20T00:00:00 1972-04-20 Melville Melville Dredge DRG TT099-DH09 22.783333 -108.15 Pacific Ocean -3159.0 1975-06-01T00:00:00 TT099 TT099 1975-06-01T00:00:00 1975-06-01 1975-06-30T00:00:00 1975-06-30 Thomas G. Thompson (1964) 7742152 Thomas G. Thompson (1964) 7742152 Dredge DRG TT099-DH12 22.95 -108.65 Pacific Ocean -2314.0 1975-06-01T00:00:00 TT099 TT099 1975-06-01T00:00:00 1975-06-01 1975-06-30T00:00:00 1975-06-30 Thomas G. Thompson (1964) 7742152 Thomas G. Thompson (1964) 7742152 Dredge DRG 31 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ 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 Event Event Identification ID ID DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Depth sed [m] Position Position position http://purl.obolibrary.org/obo/PATO_0000140 Visual description Position Deposit type Deposit type Deposit type Quantity of deposit Quantity Quantity Size Size size http://purl.obolibrary.org/obo/PATO_0000117 Size Substrate type Substrate substrate Substrate Sediment type Sediment sediment http://purl.obolibrary.org/obo/ENVO_00002007 Sediment Description Description description Description Uniform resource locator/link to image URL image URL image citable author21391 author42761 author53898 author53899 author53900 author53901 author53916 author568 author61455 author61456 author61457 author61458 basis45 basis5449 campaign3390151 campaign3390205 campaign44601 campaign44602 event2835746 event2835747 event2835748 event2835749 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 license101 method10654 method268 param144749 param144750 param48490 param53214 param54243 param7055 param7056 param88037 param96164 project4198 ref67195 ref67263 ref90238 ref90464 term1073131 term1073204 term1073316 term20898 term38263 term40710 term41044 term41056 term43863 topotype1