| _version_ | 1867167674571685888 |
|---|---|
| author | Lonsdale, Peter Burns, Virginia Mee Fisk, Mary B |
| author_facet | Lonsdale, Peter Burns, Virginia Mee Fisk, Mary B |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Manganese nodules made of radiating rods of well crystallized birnessite were sampled at 8 degree 481.2'N, 103 degree 53.8W, 1875 m below sea level by a dredge that also collected hyaloclastite and basaltic talus. The nodule field is on the floor of a caldera within a young tholeiitic seamount and was discovered and photographed during a deep-two survey. It is interpreted as a brecciated hydrothermal deposit, crystallized from an amorphous manganese oxide precipitate that formed when seawater-based hydrothermal fluids mixed with oxidized seawater. The nodules and surrounding igneous rocks have subsequently been encrusted with hydrogenous ferromanganese oxides. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_860453 |
| institution | PANGAEA |
| language | en |
| publishDate | 1980 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry of nodules from a young seamount Lonsdale, Peter Burns, Virginia Mee Fisk, Mary B DEEPSONDE; DPSN02-D3; DPSN02-D4; DPSN02-D5; Dredge; DRG; East Pacific Ocean; Indomed_leg_1; INMD-1D; Melville; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; SIQR-4D; SIQUEIROS; Thomas Washington Manganese nodules made of radiating rods of well crystallized birnessite were sampled at 8 degree 481.2'N, 103 degree 53.8W, 1875 m below sea level by a dredge that also collected hyaloclastite and basaltic talus. The nodule field is on the floor of a caldera within a young tholeiitic seamount and was discovered and photographed during a deep-two survey. It is interpreted as a brecciated hydrothermal deposit, crystallized from an amorphous manganese oxide precipitate that formed when seawater-based hydrothermal fluids mixed with oxidized seawater. The nodules and surrounding igneous rocks have subsequently been encrusted with hydrogenous ferromanganese oxides. |
| title | Geochemistry of nodules from a young seamount |
| topic | DEEPSONDE; DPSN02-D3; DPSN02-D4; DPSN02-D5; Dredge; DRG; East Pacific Ocean; Indomed_leg_1; INMD-1D; Melville; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; SIQR-4D; SIQUEIROS; Thomas Washington |
| url | https://doi.org/10.1594/PANGAEA.860453 |