Palladium, platinum, and gold distribution in serpentinite seamounts in the Mariana and Izu-Bonin Forearcs: evidence from Leg 125 fluids and serpentinites

I. J. Parkinson, G. E M Hall, J. A. Pearce

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

3 Citations (Scopus)

Abstract

Palladium, platinum, and gold were analyzed for 20 interstitial water samples from Leg 125. No Pd or Pt was detected in fluids from serpentinite muds from Conical Seamount in the Mariana forearc, indcating that low-temperature seawater-peridotite interaction does not mobilize these elements into the serpentinizing fluids. However, Au may be mobilized in high pH solutions. In contrast, fluids from vitric-rich clays on the flanks of the Torishima Seamount in the Izu-Bonin forearc have Pd values of between 4.0 and 11.8 nmol/L, Pt values between 2.3 and 5.0 nmol/L and Au values between 126.9 and 1116.9 nmol/L. The precious metals are mobilized, and possibly adsorbed onto clay mineral surfaces, during diagenesis and burial of the volcanic-rich clays. -from Authors

Original languageEnglish
Title of host publicationProc., scientific results, ODP, Leg 125, Bonin/Mariana region
EditorsP. Fryer, J.A. Pearce
PublisherODP, Texas A&M University, College Station
Pages507-518
Number of pages12
Publication statusPublished - 1 Dec 1992

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