Article
 

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

Öffentlich Deposited

Herunterladbarer Inhalt

PDF Herunterladen
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
Urheberrechts-Erklärung
Publisher
Language
Replaces

Beziehungen

Parents:

This work has no parents.

Artikel

Miniaturansicht Titel Hochladedatum Sichtbarkeit Aktionen
file details TorresEtAl_1995_ElementalIsotopicAbundance.pdf 2017-07-24 Öffentlich Herunterladen