Effect of water activity on rates of serpentinization of olivine

Simple item page
dc.contributor.authorLamadrid, Hector M.en
dc.contributor.authorRimstidt, J. Donalden
dc.contributor.authorSchwarzenbach, Esther M.en
dc.contributor.authorKlein, Friederen
dc.contributor.authorUlrich, Sarahen
dc.contributor.authorDolocan, Andreien
dc.contributor.authorBodnar, Robert J.en
dc.contributor.departmentGeosciencesen
dc.date.accessioned2017-11-13T19:43:18Zen
dc.date.available2017-11-13T19:43:18Zen
dc.date.issued2017-07-14en
dc.description.abstractThe hydrothermal alteration of mantle rocks (referred to as serpentinization) occurs in submarine environments extending from mid-ocean ridges to subduction zones. Serpentinization affects the physical and chemical properties of oceanic lithosphere, represents one of the major mechanisms driving mass exchange between the mantle and the Earth’s surface, and is central to current origin of life hypotheses as well as the search for microbial life on the icy moons of Jupiter and Saturn. In spite of increasing interest in the serpentinization process by researchers in diverse fields, the rates of serpentinization and the controlling factors are poorly understood. Here we use a novel in situ experimental method involving olivine micro-reactors and show that the rate of serpentinization is strongly controlled by the salinity (water activity) of the reacting fluid and demonstrate that the rate of serpentinization of olivine slows down as salinity increases and H₂O activity decreases.en
dc.description.sponsorshipThis material is based upon work supported by the National Science Foundation under Grant OCE-1459433 to R.J.B. and E.M.S. Consejo Nacional de Ciencia y Tecnologı´a (CONACyT), the Virginia Tech Department of Geosciences and Virginia Tech Graduate School provided partial funding to HML during this study. F.K. was supported by The Andrew W. Mellon Foundation Endowed Fund for Innovative Research. We also acknowledge the NSF grant DMR-0923096 used to purchase the TOF-SIMS instrument at Texas Materials Institute, UT Austin.en
dc.identifier.doihttps://doi.org/10.1038/ncomms16107en
dc.identifier.urihttp://hdl.handle.net/10919/80355en
dc.identifier.volume8en
dc.language.isoen_USen
dc.publisherNatureen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleEffect of water activity on rates of serpentinization of olivineen
dc.title.serialNature Communicationsen
dc.typeArticle - Refereeden

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LamadridEffectofWater2017.pdf
Size:
1.38 MB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Scholarly Works, Geosciences