Annotated record of the detailed examination of Mn deposits observed near the Median Rift Valley of the Atlantic Ocean
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PANGAEA
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| Autori principali: | , |
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| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
1969
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| _version_ | 1867170995674021888 |
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| author | Aumento, Fabrizio Loncarevic, B D |
| author_facet | Aumento, Fabrizio Loncarevic, B D |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Metamorphosed and metasomatized basalts, and unmetamorphosed equivalents, were recovered from the steep slopes of Bald Mountain, a north-south elongated seamount lying 60 km west of the Median Rift Valley at 45° N. Block faulting and uplift of the seamount, together with the removal by submarine erosion of extrusive rocks capping the seamount, have resulted in the exposure of the more deep-seated metamorphosed horizons along the fault scarps. The block-faulted nature of Bald Mountain, indicative of brittle fracturing of the upper crustal layers of the Mid-Atlantic Ridge, may be a result of the low ocean floor spreading rates implied from age determinations and magnetic anomaly patterns at 45° N. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_870721 |
| institution | PANGAEA |
| language | en |
| publishDate | 1969 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Annotated record of the detailed examination of Mn deposits observed near the Median Rift Valley of the Atlantic Ocean Aumento, Fabrizio Loncarevic, B D Atlantic Ocean; BI 19-66 – Phase 2; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; File name; HUD66/19; HUD66/19-14; HUD66/19-14C; HUD66/19-33; HUD66/19-33C; HUD66/19-35; HUD66/19-47; HUD66/19-47C; HUD66/19-48; HUD66/19-9; HUD66/19-9C; Hudson; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Photo/Video; Position; PV; Quantity of deposit; Size; Substrate type; Uniform resource locator/link to image; Visual description Metamorphosed and metasomatized basalts, and unmetamorphosed equivalents, were recovered from the steep slopes of Bald Mountain, a north-south elongated seamount lying 60 km west of the Median Rift Valley at 45° N. Block faulting and uplift of the seamount, together with the removal by submarine erosion of extrusive rocks capping the seamount, have resulted in the exposure of the more deep-seated metamorphosed horizons along the fault scarps. The block-faulted nature of Bald Mountain, indicative of brittle fracturing of the upper crustal layers of the Mid-Atlantic Ridge, may be a result of the low ocean floor spreading rates implied from age determinations and magnetic anomaly patterns at 45° N. |
| title | Annotated record of the detailed examination of Mn deposits observed near the Median Rift Valley of the Atlantic Ocean |
| topic | Atlantic Ocean; BI 19-66 – Phase 2; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; File name; HUD66/19; HUD66/19-14; HUD66/19-14C; HUD66/19-33; HUD66/19-33C; HUD66/19-35; HUD66/19-47; HUD66/19-47C; HUD66/19-48; HUD66/19-9; HUD66/19-9C; Hudson; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Photo/Video; Position; PV; Quantity of deposit; Size; Substrate type; Uniform resource locator/link to image; Visual description |
| url | https://doi.org/10.1594/PANGAEA.870721 |