Annotated record of the detailed examination of Mn deposits from DSDP Site 20, Leg 3 (Holes 3-20, 3-20A and 3-20C)
| Cobertura |
MEDIAN LATITUDE: -28.525067 * MEDIAN LONGITUDE: -26.844667 * SOUTH-BOUND LATITUDE: -28.526200 * WEST-BOUND LONGITUDE: -26.845500 * NORTH-BOUND LATITUDE: -28.524500 * EAST-BOUND LONGITUDE: -26.843000 * DATE/TIME START: 1969-01-09T00:00:00 * DATE/TIME END: 1969-01-09T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.0 m * MAXIMUM DEPTH, sediment/rock: 74.7 m |
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| Data(s) |
10/10/1970
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| Resumo |
Prior to arrival on this site, the only survey data available was from the Vema-20 crossing of the area. The recommended site location was over a relatively smooth valley in the bottom topography at about 4750 meters (15,580 feet) depth (uncorrected), about 10 kilometers wide E-W between peaks (or ridges) on either side. Sediment thickness was unknown. The center of the valley is near the peak of a wide (40 to 50 kilometers) positive magnetic anomaly, identified as Magnetic Anomaly 30 in the hypothesized geomagnetic time scale with an age of 72 million years. |
| Formato |
text/tab-separated-values, 25 data points |
| Identificador | |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Relação |
Maxwell, Arthur E; von Herzen, Richard P; Andrews, James E; Boyce, Robert E; Milow, E Dean; Hsü, Kenneth J; Percival, Stephen F Jr; Saito, T (1970): Site 20. In: Maxwell, A.E., et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 3, 319-366, doi:10.2973/dsdp.proc.3.110.1970 Grant, J Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, doi:10.7289/V52Z13FT Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, doi:10.7289/V53X84KN |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Palavras-Chave | #3-20; 3-20A; 3-20C; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg3; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ODP sample designation; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; South Atlantic/VALLEY; Substrate type |
| Tipo |
Dataset |
