scholarly journals Slab-derived halogens and noble gases illuminate closed system processes controlling volatile element transport into the mantle wedge

2017 ◽  
Vol 457 ◽  
pp. 106-116 ◽  
Author(s):  
Masahiro Kobayashi ◽  
Hirochika Sumino ◽  
Keisuke Nagao ◽  
Satoko Ishimaru ◽  
Shoji Arai ◽  
...  
Keyword(s):  
Closed System ◽  
Mantle Wedge ◽  
Noble Gases ◽  
Volatile Element ◽  
Element Transport

Seawater-derived noble gases and halogens preserved in exhumed mantle wedge peridotite

2010 ◽  
Vol 294 (1-2) ◽  
pp. 163-172 ◽  
Author(s):  
Hirochika Sumino ◽  
Ray Burgess ◽  
Tomoyuki Mizukami ◽  
Simon R. Wallis ◽  
Greg Holland ◽  
...  
Keyword(s):  
Mantle Wedge ◽  
Noble Gases

scholarly journals Serpentine alteration as source of high dissolved silicon and elevated δ30Si values to the marine Si cycle

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Sonja Geilert ◽  
Patricia Grasse ◽  
Klaus Wallmann ◽  
Volker Liebetrau ◽  
Catriona D. Menzies
Keyword(s):  
Closed System ◽  
Isotope Fractionation ◽  
Mantle Wedge ◽  
Important Process ◽  
Sr Isotope ◽  
Element Cycling ◽  
High Fluid ◽  
Dissolved Silicon ◽  
Si Isotope ◽  
Forearc Region

Abstract Serpentine alteration is recognized as an important process for element cycling, however, related silicon fluxes are unknown. Pore fluids from serpentinite seamounts sampled in the Mariana forearc region during IODP Expedition 366 were investigated for their Si, B, and Sr isotope signatures (δ30Si, δ11B, and 87Sr/86Sr, respectively) to study serpentinization in the mantle wedge and shallow serpentine alteration to authigenic clays by seawater. While serpentinization in the mantle wedge caused no significant Si isotope fractionation, implying closed system conditions, serpentine alteration by seawater led to the formation of authigenic phyllosilicates, causing the highest natural fluid δ30Si values measured to date (up to +5.2 ± 0.2‰). Here we show that seafloor alteration of serpentinites is a source of Si to the ocean with extremely high fluid δ30Si values, which can explain anomalies in the marine Si budget like in the Cascadia Basin and which has to be considered in future investigations of the global marine Si cycle.

Properties of the closed-system equilibration model for dissolved noble gases in groundwater

2013 ◽  
Vol 339 ◽  
pp. 291-300 ◽  
Author(s):  
Michael Jung ◽  
Martin Wieser ◽  
Amany von Oehsen ◽  
Werner Aeschbach-Hertig
Keyword(s):  
Closed System ◽  
Noble Gases ◽  
Equilibration Model ◽  
Dissolved Noble Gases

Noble gases in “phase Q”: Closed-system etching of an Allende residue

1991 ◽  
Vol 55 (6) ◽  
pp. 1709-1722 ◽  
Author(s):  
Rainer Wieler ◽  
Edward Anders ◽  
Heinrich Baur ◽  
Roy S. Lewis ◽  
Peter Signer
Keyword(s):  
Closed System ◽  
Noble Gases ◽  
Phase Q

scholarly journals Closed System Step Etching of CI chondrite Ivuna reveals primordial noble gases in the HF-solubles

2017 ◽  
Vol 205 ◽  
pp. 65-83 ◽  
Author(s):  
My E.I. Riebe ◽  
Henner Busemann ◽  
Rainer Wieler ◽  
Colin Maden
Keyword(s):  
Closed System ◽  
Noble Gases

A closed system audio helmet for monkeys.

1969 ◽  
Author(s):  
Leslie W. Dalton ◽  
Wenden W. Henton ◽  
Henry L. Taylor ◽  
James N. Allen
Keyword(s):  
Closed System

Relaxation of the sodium atom in the 4D level by collisions with noble gases. II. Theoretical aspects

1979 ◽  
Vol 40 (6) ◽  
pp. 533-540 ◽  
Author(s):  
G. Grynberg ◽  
E. Giacobino ◽  
F. Biraben ◽  
K. Beroff
Keyword(s):  
Noble Gases ◽  
Sodium Atom
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