The effects of pressure and temperature on the partitioning of Ti, Sr and REE between amphibole, clinopyroxene and basanitic melts

J. Adam; T. H. Green

doi:10.1016/0009-2541(94)90129-5

The effects of pressure and temperature on the partitioning of Ti, Sr and REE between amphibole, clinopyroxene and basanitic melts

J. Adam^*, T. H. Green

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

184 Citations (Scopus)

Abstract

An electron microprobe was used to measure partition coefficients (D-values) for Ti, Sr, La, Sm, Ho and Lu in amphiboles, clinopyroxenes and Sr- and REE-enriched basanitic melts. D-values were found to be negatively correlated with pressure at pressures from 0.5 to 3.0 GPa. This effect is greatest for Ti and smallest for Lu. Changes in D-values accompanying changes in temperature are less apparent than those caused by changes in pressure. Only D_Lu for clinopyroxene shows a small but consistent increase as temperature increases from 1050° to 1200°C. D-values for amphibole are not noticeably affected by changes in f_O2. In contrast, D-values for clinopyroxene become larger as f_O2 increases. The correlations between D-values and pressure may be related to changes in site volumes and electrostatic potentials accompanying shifts in the relative concentrations of Al^IV, Al^VI and Na⁺.

Original language	English
Pages (from-to)	219-233
Number of pages	15
Journal	Chemical Geology
Volume	117
Issue number	1-4
DOIs	https://doi.org/10.1016/0009-2541(94)90129-5
Publication status	Published - 1 Nov 1994

Access to Document

10.1016/0009-2541(94)90129-5

Cite this

@article{96a4eec470584a939fbd18a0d9b2dc8e,

title = "The effects of pressure and temperature on the partitioning of Ti, Sr and REE between amphibole, clinopyroxene and basanitic melts",

abstract = "An electron microprobe was used to measure partition coefficients (D-values) for Ti, Sr, La, Sm, Ho and Lu in amphiboles, clinopyroxenes and Sr- and REE-enriched basanitic melts. D-values were found to be negatively correlated with pressure at pressures from 0.5 to 3.0 GPa. This effect is greatest for Ti and smallest for Lu. Changes in D-values accompanying changes in temperature are less apparent than those caused by changes in pressure. Only DLu for clinopyroxene shows a small but consistent increase as temperature increases from 1050° to 1200°C. D-values for amphibole are not noticeably affected by changes in fO2. In contrast, D-values for clinopyroxene become larger as fO2 increases. The correlations between D-values and pressure may be related to changes in site volumes and electrostatic potentials accompanying shifts in the relative concentrations of AlIV, AlVI and Na+.",

author = "J. Adam and Green, {T. H.}",

year = "1994",

month = nov,

day = "1",

doi = "10.1016/0009-2541(94)90129-5",

language = "English",

volume = "117",

pages = "219--233",

journal = "Chemical Geology",

issn = "0009-2541",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - The effects of pressure and temperature on the partitioning of Ti, Sr and REE between amphibole, clinopyroxene and basanitic melts

AU - Adam, J.

AU - Green, T. H.

PY - 1994/11/1

Y1 - 1994/11/1

N2 - An electron microprobe was used to measure partition coefficients (D-values) for Ti, Sr, La, Sm, Ho and Lu in amphiboles, clinopyroxenes and Sr- and REE-enriched basanitic melts. D-values were found to be negatively correlated with pressure at pressures from 0.5 to 3.0 GPa. This effect is greatest for Ti and smallest for Lu. Changes in D-values accompanying changes in temperature are less apparent than those caused by changes in pressure. Only DLu for clinopyroxene shows a small but consistent increase as temperature increases from 1050° to 1200°C. D-values for amphibole are not noticeably affected by changes in fO2. In contrast, D-values for clinopyroxene become larger as fO2 increases. The correlations between D-values and pressure may be related to changes in site volumes and electrostatic potentials accompanying shifts in the relative concentrations of AlIV, AlVI and Na+.

AB - An electron microprobe was used to measure partition coefficients (D-values) for Ti, Sr, La, Sm, Ho and Lu in amphiboles, clinopyroxenes and Sr- and REE-enriched basanitic melts. D-values were found to be negatively correlated with pressure at pressures from 0.5 to 3.0 GPa. This effect is greatest for Ti and smallest for Lu. Changes in D-values accompanying changes in temperature are less apparent than those caused by changes in pressure. Only DLu for clinopyroxene shows a small but consistent increase as temperature increases from 1050° to 1200°C. D-values for amphibole are not noticeably affected by changes in fO2. In contrast, D-values for clinopyroxene become larger as fO2 increases. The correlations between D-values and pressure may be related to changes in site volumes and electrostatic potentials accompanying shifts in the relative concentrations of AlIV, AlVI and Na+.

UR - http://www.scopus.com/inward/record.url?scp=0028604976&partnerID=8YFLogxK

U2 - 10.1016/0009-2541(94)90129-5

DO - 10.1016/0009-2541(94)90129-5

M3 - Article

AN - SCOPUS:0028604976

SN - 0009-2541

VL - 117

SP - 219

EP - 233

JO - Chemical Geology

JF - Chemical Geology

IS - 1-4

ER -

The effects of pressure and temperature on the partitioning of Ti, Sr and REE between amphibole, clinopyroxene and basanitic melts

Abstract

Access to Document

Other files and links

Fingerprint

Cite this