(Table 1) Sulphur concentration and isotopic composition of ODP Leg 126 igneous rocks
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1992
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| _version_ | 1867169041695637504 |
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| author | Torssander, Peter |
| author_facet | Torssander, Peter |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Sulfur isotope ratios have been determined in 19 selected igneous rocks from Leg 126. The d34S of the analyzed rocks ranges from -0.1 â to +19.60 â. The overall variation in sulfur isotope composition of the rocks is caused by varying degrees of seawater alteration. Most of the samples are altered by seawater and only five of them are considered to have maintained their magmatic sulfur isotope composition. These samples are all from the backarc sites and have d34S values varying from +0.2 â to +1.6 â, of which the high d34S values suggest that the earliest magmas in the rift are more arc-like in their sulfur isotope composition than the later magmas. The d34S values from the forearc sites are similar to or heavier than the sulfur isotope composition of the present arc. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_774265 |
| institution | PANGAEA |
| language | en |
| publishDate | 1992 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Sulphur concentration and isotopic composition of ODP Leg 126 igneous rocks Torssander, Peter 126-790C; 126-791B; 126-792E; 126-793A; 126-793B; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Joides Resolution; Leg126; Mass spectrometer VG Micromass 602; North Pacific Ocean; Ocean Drilling Program; ODP; Philippine Sea; Rock type; Sample code/label; Sulfur, total; Sulfur in sulfate; Sulfur in sulfide; δ34S; δ34S, sulfate; δ34S, sulfide Sulfur isotope ratios have been determined in 19 selected igneous rocks from Leg 126. The d34S of the analyzed rocks ranges from -0.1 â to +19.60 â. The overall variation in sulfur isotope composition of the rocks is caused by varying degrees of seawater alteration. Most of the samples are altered by seawater and only five of them are considered to have maintained their magmatic sulfur isotope composition. These samples are all from the backarc sites and have d34S values varying from +0.2 â to +1.6 â, of which the high d34S values suggest that the earliest magmas in the rift are more arc-like in their sulfur isotope composition than the later magmas. The d34S values from the forearc sites are similar to or heavier than the sulfur isotope composition of the present arc. |
| title | (Table 1) Sulphur concentration and isotopic composition of ODP Leg 126 igneous rocks |
| topic | 126-790C; 126-791B; 126-792E; 126-793A; 126-793B; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Joides Resolution; Leg126; Mass spectrometer VG Micromass 602; North Pacific Ocean; Ocean Drilling Program; ODP; Philippine Sea; Rock type; Sample code/label; Sulfur, total; Sulfur in sulfate; Sulfur in sulfide; δ34S; δ34S, sulfate; δ34S, sulfide |
| url | https://doi.org/10.1594/PANGAEA.774265 |