Geochemistry of boron and its implications for crustal and mantle processes
Following the pioneering work of Goldschmidt and Peters (1932a, b), the geochemistry of
boron has been explored in intermittent bursts of activity, usually associated with …
boron has been explored in intermittent bursts of activity, usually associated with …
Reconstructing ocean pH with boron isotopes in foraminifera
In order to better understand the effect of CO2 on the Earth system in the future, geologists
may look to CO2-induced environmental change in Earth's past. Here we describe how CO2 …
may look to CO2-induced environmental change in Earth's past. Here we describe how CO2 …
The composition of the continental crust
KH Wedepohl - Geochimica et cosmochimica Acta, 1995 - Elsevier
A new calculation of the crustal composition is based on the proportions of upper crust (UC)
to felsic lower crust (FLC) to mafic lower crust (MLC) of about 1: 0.6: 0.4. These proportions …
to felsic lower crust (FLC) to mafic lower crust (MLC) of about 1: 0.6: 0.4. These proportions …
Metamorphic tourmaline and its petrologic applications
Tourmaline is the most important borosilicate mineral because of its ubiquity and the
diversity of petrologic information that it can yield. In metamorphic rocks tourmaline can …
diversity of petrologic information that it can yield. In metamorphic rocks tourmaline can …
Boron in granitic rocks and their contact aureoles
A review of the petrologic literature (eg Watanabe, 1975; Seyfried et al., 1984; Leeman et al.,
1994; see also Leeman and Sisson, this volume) shows that subductionrelated intermediate …
1994; see also Leeman and Sisson, this volume) shows that subductionrelated intermediate …
The systematics of boron abundances in young volcanic rocks
JG Ryan, CH Langmuir - Geochimica et Cosmochimica Acta, 1993 - Elsevier
Boron behaves as a highly incompatible trace element in oceanic settings, while in arcs it
shows unique systematics indicative of fluid-rock interactions. Boron analyses conducted on …
shows unique systematics indicative of fluid-rock interactions. Boron analyses conducted on …
Cross-arc geochemical variations in the Kurile arc as a function of slab depth
Lavas from transects across the Kurile Islands arc showed geochemical variations related to
changes in the compositions of fluids derived from the subducting slab. Enrichment factors …
changes in the compositions of fluids derived from the subducting slab. Enrichment factors …
Source, composition and distribution of the fluid in the Kurile mantle wedge: constraints from across-arc variations of B/Nb and B isotopes
T Ishikawa, F Tera - Earth and Planetary Science Letters, 1997 - Elsevier
B and Nb concentrations and B isotope composition were determined for lavas covering the
entire length of the Kurile arc. B/Nb and δ11B of these lavas show clear across-arc …
entire length of the Kurile arc. B/Nb and δ11B of these lavas show clear across-arc …
Boron and lithium isotopic variations in a hot subduction zone—the southern Washington Cascades
WP Leeman, S Tonarini, LH Chan, LE Borg - Chemical Geology, 2004 - Elsevier
New B and Li isotopic data are presented for well-characterized basalts from a transect
across the Cascades volcanic arc, S. Washington, for a sediment core on the incoming Juan …
across the Cascades volcanic arc, S. Washington, for a sediment core on the incoming Juan …
Boron geochemistry of the Central American volcanic arc: constraints on the genesis of subduction-related magmas
Boron contents were measured in representative Quaternary lavas from the Central
American Volcanic Arc to evaluate along-strike variations in subduction processes. Despite …
American Volcanic Arc to evaluate along-strike variations in subduction processes. Despite …