Article

 

Elemental and isotopic abundance of noble gases in formation fluids recovered in situ from the Chile Triple Juction Public Deposited

Analytics

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/fx719p12n

Descriptions

Attribute NameValues
Creator
Abstract
  • Sedimentary pore fluids from the Chile Triple Junction were sampled in situ, and analyzed for their noble gas composition. ³He/⁴He and ⁴He/Ne ratios were used to evaluate the fraction of helium in the samples that originated from mantle and radiogenic sources. The results show no primordial helium in samples recovered from Sites 860 and 861. In contrast, a primordial component is present in two samples from a depth interval in Site 863 that corresponds to a zone of tectonic discontinuity. A decrease in the concentration of dissolved K, Sr, Mg, and SO₄ in this interval is consistent with the presence of a fluid which has been altered by basalt-seawater reactions. These results indicate lateral fluid migration from a hydrothermal source which is probably associated with the recently subducted Chile Ridge axis.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Torres, M. E., R. Bayer, G. Winckler, A. Suckow, Froelich, P.N. "Elemental and isotopic abundance of noble gases in formation fluids recovered in situ from the Chile Triple Juction." Proceedings of the Ocean Drilling Program, Scientific Results 141 (1995): 321-29.
Journal Title
Journal Volume
  • 141
Rights Statement
Publisher
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2010-01-21T14:56:00Z (GMT) No. of bitstreams: 1 TorresEtAl_1995_ElementalIsotopicAbundance.pdf: 2024671 bytes, checksum: 037d31fffd764a2ee8912d26fb63bff8 (MD5)
  • description.provenance : Submitted by Mary Phan (mpscanner@gmail.com) on 2010-01-20T22:36:34Z No. of bitstreams: 1 TorresEtAl_1995_ElementalIsotopicAbundance.pdf: 2024671 bytes, checksum: 037d31fffd764a2ee8912d26fb63bff8 (MD5)
  • description.provenance : Made available in DSpace on 2010-01-21T14:56:00Z (GMT). No. of bitstreams: 1 TorresEtAl_1995_ElementalIsotopicAbundance.pdf: 2024671 bytes, checksum: 037d31fffd764a2ee8912d26fb63bff8 (MD5) Previous issue date: 1995

Relationships

Parents:

This work has no parents.

Items

Thumbnail Title Date Uploaded Visibility Actions
TorresEtAl_1995_ElementalIsotopicAbundance.pdf 2017-07-24 Public