Trace-element contents in ash samples from DSDP Leg 19 sediments
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1976
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| _version_ | 1867168553081241600 |
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| author | Edsall, Douglas Wayne |
| author_facet | Edsall, Douglas Wayne |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The Sr, Rb, Ti, and Zr concentrations of 16 volcanic ash samples from Leg 19 of the Deep Sea Drilling Project were determined by X-ray fluorescence. The age of each ash sample had been established previously by faunal criteria and had been confirmed by fission-track dating. Variations in the trace-element concentrations through the past 8 m.y. are clearly seen. Seven of the ashes are older than 4 m.y., have low TiO2 contents, and have Sr concentrations of less than 200 ppm; they are thus similar to tholeiitic basalts of island arcs. Nine ashes are younger than 4 m.y. and are similar in trace-element content to andesite. Magmatic evolution of the Aleutian arc over the past 8 m.y. is clearly shown. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_718114 |
| institution | PANGAEA |
| language | en |
| publishDate | 1976 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Trace-element contents in ash samples from DSDP Leg 19 sediments Edsall, Douglas Wayne 19-183; 19-184; 19-186; 19-188; 19-189; 19-190; 19-192; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg19; North Pacific/BASIN; North Pacific/Bering Strait/BASIN; North Pacific/Bering Strait/PLATEAU; North Pacific/Bering Strait/RIDGE; North Pacific/GUYOT; North Pacific/PLAIN The Sr, Rb, Ti, and Zr concentrations of 16 volcanic ash samples from Leg 19 of the Deep Sea Drilling Project were determined by X-ray fluorescence. The age of each ash sample had been established previously by faunal criteria and had been confirmed by fission-track dating. Variations in the trace-element concentrations through the past 8 m.y. are clearly seen. Seven of the ashes are older than 4 m.y., have low TiO2 contents, and have Sr concentrations of less than 200 ppm; they are thus similar to tholeiitic basalts of island arcs. Nine ashes are younger than 4 m.y. and are similar in trace-element content to andesite. Magmatic evolution of the Aleutian arc over the past 8 m.y. is clearly shown. |
| title | Trace-element contents in ash samples from DSDP Leg 19 sediments |
| topic | 19-183; 19-184; 19-186; 19-188; 19-189; 19-190; 19-192; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg19; North Pacific/BASIN; North Pacific/Bering Strait/BASIN; North Pacific/Bering Strait/PLATEAU; North Pacific/Bering Strait/RIDGE; North Pacific/GUYOT; North Pacific/PLAIN |
| url | https://doi.org/10.1594/PANGAEA.718114 |