jgs2022-036_si_006.eps (6.46 MB)
Crystal entrainment from cool, low-silica rocks into hot, high-silica melts: diverse primary melt compositions at Taranaki volcano, New Zealand
figureposted on 2023-01-30, 16:20 authored by N. G. D'Mello, G. F. Zellmer, G. Kereszturi, T. Ubide, J. N. Procter, R. B. Stewart
Figure S3: Representative SEM-BSE images of the investigated Taranaki lava samples (a) Oscillatory zoned, euhedral clinopyroxene phenocryst in sample ES5; (b) TUR sample showing zoned clinopyroxene crystal (lower left) (c) euhedral crystal of clinopyroxene with patchy zoning in sample ES5; (d) euhedral plagioclase with oscillatory zoning and sieve texture in sample PYR; (e) rounded core with euhedral rim of plagioclase in sample L21; (f) sieved interior and oscillatory zoned plagioclase with distinct core/mantle in sample L09; (g) zoned amphibole showing breakdown features at the rim in sample L18; (h) volumetric decomposition (D'Mello et al. 2021) of amphibole into plagioclase and clinopyroxene in sample ES3; (i) broken amphibole with reaction rim from sample ES3; (j) clinopyroxene glomerocryst in sample L02, with inclusions of Fe-Ti oxides (white-near equant crystals); (k) groundmass of sample L16 showing vesicles and microlite populations (clinopyroxene-light grey, plagioclase-dark grey, and oxides-black, with rare orthopyroxene) (l) glomerocryst of intergrown plagioclase crystals from sample L18.
ORCID FOR SUBMITTING AUTHOR(s)
et al .intergrown plagioclase crystalseuhedral clinopyroxene phenocrystoscillatory zoned plagioclaseoscillatory zonedeuhedral plagioclaseoscillatory zoningeuhedral crystalvolumetric decompositiontaranaki volcanosilica rockssilica meltssieved interiorsieve texturesample pyrsample l21sample l18sample l09sample l02sample es5sample es3rounded corerepresentative semrare orthopyroxenepatchy zoningmicrolite populationslower leftlight greydistinct coredark greycrystal entrainmentbse images