Salvato in:
| Autori principali: | , , , , , , , , , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
2001
|
| Soggetti: | |
| Accesso online: | https://doi.org/10.1594/PANGAEA.784677 |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170928439328768 |
|---|---|
| author | Mazarovich, Alexander O Simonov, Vladimir A Peive, Aleksandr V Kovyazin, S V Tret'yakov, G A Raznitsin, Yury N Savel'eva, G N Skolotnev, Sergey G Sokolov, S Yu Turko, Natalia N |
| author_facet | Mazarovich, Alexander O Simonov, Vladimir A Peive, Aleksandr V Kovyazin, S V Tret'yakov, G A Raznitsin, Yury N Savel'eva, G N Skolotnev, Sergey G Sokolov, S Yu Turko, Natalia N |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | An analysis of data on the location of hydrothermal fields, seismicity, and satellite altimetry evidences that in mid-ocean ridges with low spreading rate hydrothermal fields tend to be grouped in areas with generally low seismic activity and at intersections of discontinuities and rift zones. Based on this assumption, the Sierra Leone Fracture Zone was studied in 2000 during Cruise 22 of R/V Akademik Nikolaj Strakhov. A study of gabbrodolerite and dolerite showed that sulfide ore minerals in them were formed both by hydrothermal and magmatic processes. An analysis of melt inclusions demonstrated that magmatic complexes formed from a high-temperature (1210-1255°C) low-potassium melt of the N-MORB type. Investigations of fluid inclusions revealed that gabbro and dolerite formed under influence of an active hydrothermal system at temperature 205-226°C. Thus, the Sierra Leone Fracture Zone is considered to be perspective for a discovery of a new hydrothermal field. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_784677 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Composition of sulfides from the Sierra Leone Fracture Zone (Central Atlantic Ocean) Mazarovich, Alexander O Simonov, Vladimir A Peive, Aleksandr V Kovyazin, S V Tret'yakov, G A Raznitsin, Yury N Savel'eva, G N Skolotnev, Sergey G Sokolov, S Yu Turko, Natalia N Akademik Nikolaj Strakhov; ANS22; Archive of Ocean Data; ARCOD; Calculated; CAMEBAX microprobe; Cobalt; Copper; Dredge; DRG; Iron; Lead; Mid-Atlantic Ridge; Minerals; Nickel; S2234; Sample code/label; Sulfur, total; Sum; Zinc An analysis of data on the location of hydrothermal fields, seismicity, and satellite altimetry evidences that in mid-ocean ridges with low spreading rate hydrothermal fields tend to be grouped in areas with generally low seismic activity and at intersections of discontinuities and rift zones. Based on this assumption, the Sierra Leone Fracture Zone was studied in 2000 during Cruise 22 of R/V Akademik Nikolaj Strakhov. A study of gabbrodolerite and dolerite showed that sulfide ore minerals in them were formed both by hydrothermal and magmatic processes. An analysis of melt inclusions demonstrated that magmatic complexes formed from a high-temperature (1210-1255°C) low-potassium melt of the N-MORB type. Investigations of fluid inclusions revealed that gabbro and dolerite formed under influence of an active hydrothermal system at temperature 205-226°C. Thus, the Sierra Leone Fracture Zone is considered to be perspective for a discovery of a new hydrothermal field. |
| title | Composition of sulfides from the Sierra Leone Fracture Zone (Central Atlantic Ocean) |
| topic | Akademik Nikolaj Strakhov; ANS22; Archive of Ocean Data; ARCOD; Calculated; CAMEBAX microprobe; Cobalt; Copper; Dredge; DRG; Iron; Lead; Mid-Atlantic Ridge; Minerals; Nickel; S2234; Sample code/label; Sulfur, total; Sum; Zinc |
| url | https://doi.org/10.1594/PANGAEA.784677 |