@article{PAR00003004,
  title = {{T}race element geochemistry of the 1991 {M}t. {P}inatubo silicic melts, {P}hilippines: implications for ore-forming potential of adakitic magmatism},
  author = {{Y}u {B}orisova, {A}. and {P}ichavant, {M}. and {P}olv{\'e}, {M}ireille and {W}iedenbeck, {M}. and {F}reydier, {R}. and {C}andaudap, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he dacite pumice erupted from {M}t. {P}inatubo on {J}une 15, 1991 (whole-rock, rhyolitic groundmass glasses and homogenized melt inclusions) has been analyzed using inductively coupled plasma-mass spectrometry ({ICP}-{MS}), nanosecond and femtosecond laser ablation {ICP}-{MS} and secondary ion mass spectrometry ({SIMS}) to evaluate its ore-forming potential. {D}ata suggest that adakite magmas are metal-rich and concentrate ore metals during magmatic differentiation. {S}ulfides segregate in limited amounts under the hydrous, oxidizing conditions typical of adakitic magmas resulting in incompatible behavior for {A}u (6-22 ppb), {C}u (26-77 ppm), and {P}b, {M}o, {A}s, and {S}b in melts of dacitic to rhyolitic compositions. {M}etal transfer from this adakite magma to the coexisting aqueous phase was favored by the peraluminous composition of the rhyolitic melt and high aqueous chloride concentrations. {M}ass balance calculations suggest that the pre-eruptive aqueous phase could have extracted a minimum of 100 t {A}u and 5 × 105 t {C}u from the {M}t. {P}inatubo magma. {O}ur data suggest that intrusives having adakitic signatures are genetically associated with {A}u-{C}u and {C}u-{M}o mineralization, auriferous porphyry copper deposits, and epithermal gold veins. {H}igh {H}2{O}, {C}l, {S}r/{Y}, {P}b/{C}e, {M}o/{C}e, {A}s/{C}e and {S}b/{C}e in {M}t. {P}inatubo melts reflect the contribution of deep fluids derived from subducted sediments and altered {MORB}s in the dacite genesis. {T}he slab-derived fluids carrying mobile elements are likely responsible for the enrichment of adakite magmas in gold, associated metals and {H}2{O}, and may explain the exceptional ore-forming potential of adakite magmatism.},
  keywords = {{PHILIPPINES}},
  booktitle = {},
  journal = {{G}eochimica et {C}osmochimica {A}cta},
  volume = {70},
  numero = {14},
  pages = {3702--3716},
  year = {2006},
  DOI = {10.1016/j.gca.2006.04.030},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00003004},
}