TY - JOUR
T1 - Anomalously High δD values in an archean ferropicritic melt : implications for magma degassing
AU - Stone, W.
AU - Deloule, E.
AU - Beresford, S.
AU - Fiorentini, Marco
PY - 2005
Y1 - 2005
N2 - [Truncated abstract] In situ H isotope analysis of igneous amphibole from the Boston Creek ferropicrite, in the Abitibi Belt, Ontario, a 100-m-thick layered mafic-ultramafic unit, provides insights into the evolution of Archean mantle-derived hydrous melts in the crust. Ion-microprobe analyses of the ultramafic-rock-hosted interstitial igneous magnesiohastingsite indicate a wide range of δD values, from −47 to +54‰ and 2–3 wt% H2O at the 100–1000 μm intragrain scale, but relatively uniform major-element and incompatible trace-element compositions. This wide range encompasses values significantly higher than the δD values of −50‰ for whole-rock samples,
AB - [Truncated abstract] In situ H isotope analysis of igneous amphibole from the Boston Creek ferropicrite, in the Abitibi Belt, Ontario, a 100-m-thick layered mafic-ultramafic unit, provides insights into the evolution of Archean mantle-derived hydrous melts in the crust. Ion-microprobe analyses of the ultramafic-rock-hosted interstitial igneous magnesiohastingsite indicate a wide range of δD values, from −47 to +54‰ and 2–3 wt% H2O at the 100–1000 μm intragrain scale, but relatively uniform major-element and incompatible trace-element compositions. This wide range encompasses values significantly higher than the δD values of −50‰ for whole-rock samples,
UR - https://www.scopus.com/pages/publications/32944473174
U2 - 10.2113/gscanmin.43.5.1745
DO - 10.2113/gscanmin.43.5.1745
M3 - Article
SN - 0008-4476
VL - 43
SP - 1745
EP - 1758
JO - Canadian Mineralogist
JF - Canadian Mineralogist
IS - 5
ER -