Supplementary files for: Bimodal alteration of the oceanic crust revealed by halogen and noble gas systematics in the Oman Ophiolite

Published: 22 November 2021| Version 2 | DOI: 10.17632/v9gmsj5m59.2
Elliot Carter


Data Set S1. Proportion of minerals determined by XRD in all whole rock and mineral separates. Data Set S2. Summary of electron probe microanalysis (EPMA) acquisition parameters. Data Set S3. Full EPMA dataset of major elements and Cl for halogen-bearing minerals including amphibole, iddingsite/serpentine, chlorite as well as thomsonite and prehnite. Data Set S4. Summary of irradiation parameters including neutron fluxes calculated from standards and monitors (Hb3Gr, scapolites, Shallowater), vertical variation in J, ɸtherm and ɸfast and associated linear regressions used to interpolate to sample positions. Data Set S5. Full neutron-irradiated dataset including Cl, Br, I, K, Ca, Ba and U abundances and natural noble gas abundances (Ar, Kr, Xe) and isotopes (40Ar/36Ar). Data Set S6. Full un-irradiated dataset including, He, Ne, Ar, Kr and Xe abundances and isotopes including 3He/4He. Data Set S7. LOI data measured on whole rock samples. Data Set S8. Calculated statistics and weighted average estimates of the halogen composition of altered oceanic crust Figure S1 - High resolution versions of transmitted light photomicrographs XRD spectra - XRD spectra from mineralogical analysis of whole rocks and minerals



The University of Manchester


Geochemistry, Ocean Hydrothermal Systems, Drilling, Halogen, Noble Gas