Petrographic data for samples from DSDP Holes 63-471 and 65-485
| Cobertura |
MEDIAN LATITUDE: 23.115700 * MEDIAN LONGITUDE: -110.199900 * SOUTH-BOUND LATITUDE: 22.749200 * WEST-BOUND LONGITUDE: -112.496300 * NORTH-BOUND LATITUDE: 23.482200 * EAST-BOUND LONGITUDE: -107.903500 * DATE/TIME START: 1978-11-08T00:00:00 * DATE/TIME END: 1979-03-05T00:00:00 |
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| Data(s) |
27/02/2004
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| Resumo |
Detrital modes of middle Miocene sandstone recovered at Deep Sea Drilling Project Site 471 on the Magdalena Fan support the hypothesis that the fan has been displaced northward from a source hundreds of kilometers to the south near the present mouth of the Gulf of California. The modes are dissimilar to those of modern sand derived from onshore outcrops of Miocene volcanic and volcaniclastic rocks, Neogene sedimentary rocks, and Mesozoic subduction complex. They most closely match sand associated with the mouth of Gulf of California. The overall stratigraphy, sand composition, and diagenesis at Site 471 are consistent with deposition of the Magdalena Fan on young oceanic crust near a spreading ridge at a triple junction. |
| Formato |
application/zip, 2 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.713689 doi:10.1594/PANGAEA.713689 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Marsaglia, Kathleen M (2004): Sandstone detrital modes support Magdalena Fan displacement from the mouth of the Gulf of California. Geology, 32(1), 45-48, doi:10.1130/G20099.1 |
| Palavras-Chave | #63-471; 65-485; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Feldspar; Fels fragm; Felsitic fragments; Fragm; Fragments; Fsp; Glomar Challenger; Grains; Grains, counted/analyzed; Kalifeldspar; Kfs; lathwork volcanic of sum felsitic + microlitic + lathwork volcanic lithic fragments; Leg63; Leg65; Lithic; Lithic grains; Metam; Metamorphite; Microlitic; Microlitic fragments; Min altered; Minerals, altered; MonoQz; nonquartzose aphanitic lithic, total; North Pacific/FAN; North Pacific/Gulf of California/SEDIMENT POND; ODP sample designation; of sum felsitic + microlitic + lathwork volcanic lithic fragments; of sum metamorphite + volcanite + sedimentary rock fragments; of sum monocrystalline quartz + kalifeldspar + plagioclase; Pl; Pl/Fsp; Plagioclase; Plagioclase/Feldspar ratio; Quartz; Quartz, monocrystalline; Qz; Sample code/label; Sedimentary rock; Sedim rock; total; unknown; Volcanite |
| Tipo |
Dataset |
