In:
Annual Review of Earth and Planetary Sciences, Annual Reviews, Vol. 44, No. 1 ( 2016-06-29), p. 463-492
Abstract:
The element oxygen has three stable isotopes: 16 O, 17 O, and 18 O. For a defined process, a change in 18 O/ 16 O scales with the corresponding change in 17 O/ 16 O, or the fractionation factors 18 α and 17 α have a relationship of θ = ln 17 α/ln 18 α, in which the triple oxygen isotope exponent θ is relatively fixed but does vary with reaction path, temperature, and species involved. When the small variation is of interest, the distinction of three concepts—θ, S (a slope through data points in δ 17 O–δ 18 O space), and C (an arbitrary referencing number for the degree of 17 O deviation)—becomes important. Triple oxygen isotope variations can be measured by modern instruments and thus offer an additional line of information on the underlying reaction processes and conditions. Analytical methods and Earth science applications have recently been developed for air oxygen, carbon dioxide, water, silicates, oxides, sulfates, carbonates, and phosphates.
Type of Medium:
Online Resource
ISSN:
0084-6597
,
1545-4495
DOI:
10.1146/earth.2016.44.issue-1
DOI:
10.1146/annurev-earth-060115-012340
Language:
English
Publisher:
Annual Reviews
Publication Date:
2016
detail.hit.zdb_id:
124813-3
detail.hit.zdb_id:
2010309-8
SSG:
16,13
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