| _version_ | 1867168563813416960 |
|---|---|
| author | Furuta, Toshio |
| author_facet | Furuta, Toshio |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | More than 60 basalt samples from two Deep Sea Drilling Project holes on the Costa Rica Rift were studied for magnetic properties and were found to have no properties significantly different from other DSDP basalts. Opaque mineralogical and thermomagnetic properties of these samples, however, to some extent show differences from normal submarine basalts; a new type of thermomagnetic curve and wide range of chemical compositions were recognized. Oxidized samples possibly containing incipient ilmenite exsolution lamellae were reduced and re-equilibrated during heating. The Curie temperatures of the re-equilibrated titanomagnetites are interpreted to be those of the original crystallized phase before oxidation. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_816638 |
| institution | PANGAEA |
| language | en |
| publishDate | 1983 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Magnetic properties and geochemistry in DSDP Holes 69-504B an d 69-505B Furuta, Toshio 69-504B; 69-505B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg69; North Pacific/GRABEN More than 60 basalt samples from two Deep Sea Drilling Project holes on the Costa Rica Rift were studied for magnetic properties and were found to have no properties significantly different from other DSDP basalts. Opaque mineralogical and thermomagnetic properties of these samples, however, to some extent show differences from normal submarine basalts; a new type of thermomagnetic curve and wide range of chemical compositions were recognized. Oxidized samples possibly containing incipient ilmenite exsolution lamellae were reduced and re-equilibrated during heating. The Curie temperatures of the re-equilibrated titanomagnetites are interpreted to be those of the original crystallized phase before oxidation. |
| title | Magnetic properties and geochemistry in DSDP Holes 69-504B an d 69-505B |
| topic | 69-504B; 69-505B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg69; North Pacific/GRABEN |
| url | https://doi.org/10.1594/PANGAEA.816638 |