Calcite composition and stable isotope record of ODP Hole 103-637A peridotites
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1988
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| _version_ | 1867167663983165440 |
|---|---|
| author | Evans, Cynthia A Baltuck, Miriam |
| author_facet | Evans, Cynthia A Baltuck, Miriam |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The peridotite recovered from Ocean Drilling Program Hole 637A, Galicia margin, has suffered extensive low-temperature alteration that includes serpentinization, calcite veining, and calcite replacement. This note presents textural and geochemical data on the serpentine and calcite. Such data indicate that the serpentinization, serpentine veining, and calcite veining of the peridotite occurred in several stages late in the history of the peridotite emplacement, probably after the peridotite was emplaced at crustal levels. It is also apparent that some deformational events (evidenced by faulting and brecciation of both serpentine and calcite veins) continued after the main phase of low-temperature alteration. The geochemistry and petrology, structure, and high-temperature alteration of the peridotite are discussed in separate papers in this volume (Evans and Girardeau, 1988, doi:10.2973/odp.proc.sr.103.138.1988; Girardeau et al., 1988, doi:10.2973/odp.proc.sr.103.135.1988; Kimball and Evans, 1988, doi:10.2973/odp.proc.sr.103.140.1988; Agrinier et al., 1988, doi:10.2973/odp.proc.sr.103.136.1988). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_743568 |
| institution | PANGAEA |
| language | en |
| publishDate | 1988 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Calcite composition and stable isotope record of ODP Hole 103-637A peridotites Evans, Cynthia A Baltuck, Miriam 103-637A; DRILL; Drilling/drill rig; Joides Resolution; Leg103; North Atlantic Ocean; Ocean Drilling Program; ODP The peridotite recovered from Ocean Drilling Program Hole 637A, Galicia margin, has suffered extensive low-temperature alteration that includes serpentinization, calcite veining, and calcite replacement. This note presents textural and geochemical data on the serpentine and calcite. Such data indicate that the serpentinization, serpentine veining, and calcite veining of the peridotite occurred in several stages late in the history of the peridotite emplacement, probably after the peridotite was emplaced at crustal levels. It is also apparent that some deformational events (evidenced by faulting and brecciation of both serpentine and calcite veins) continued after the main phase of low-temperature alteration. The geochemistry and petrology, structure, and high-temperature alteration of the peridotite are discussed in separate papers in this volume (Evans and Girardeau, 1988, doi:10.2973/odp.proc.sr.103.138.1988; Girardeau et al., 1988, doi:10.2973/odp.proc.sr.103.135.1988; Kimball and Evans, 1988, doi:10.2973/odp.proc.sr.103.140.1988; Agrinier et al., 1988, doi:10.2973/odp.proc.sr.103.136.1988). |
| title | Calcite composition and stable isotope record of ODP Hole 103-637A peridotites |
| topic | 103-637A; DRILL; Drilling/drill rig; Joides Resolution; Leg103; North Atlantic Ocean; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.743568 |