Abstract Details
(2020) Radiogenic Isotope and Precious Metal Compositions of Orangeite Dykes Intersecting the Bushveld Complex
Compton-Jones C, Hughes H, McDonald I, Bybee G, Kinnaird J & Andersen J
https://doi.org/10.46427/gold2020.465
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03g: Room 1, Thursday 25th June 08:21 - 08:24
Charlie Compton-Jones
View abstracts at 2 conferences in series
Hannah Hughes View all 3 abstracts at Goldschmidt2020
Iain McDonald View all 2 abstracts at Goldschmidt2020
Grant Bybee View all 3 abstracts at Goldschmidt2020 View abstracts at 7 conferences in series
Judith Kinnaird View all 3 abstracts at Goldschmidt2020 View abstracts at 7 conferences in series
Jens Andersen View all 2 abstracts at Goldschmidt2020 View abstracts at 2 conferences in series
Hannah Hughes View all 3 abstracts at Goldschmidt2020
Iain McDonald View all 2 abstracts at Goldschmidt2020
Grant Bybee View all 3 abstracts at Goldschmidt2020 View abstracts at 7 conferences in series
Judith Kinnaird View all 3 abstracts at Goldschmidt2020 View abstracts at 7 conferences in series
Jens Andersen View all 2 abstracts at Goldschmidt2020 View abstracts at 2 conferences in series
Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.
Submitted by Jingao Liu on Monday 22nd June 06:39
Hi Charlie, how do you interpret the absolute and relative abundances of the orangeites other than just reflecting the variable mantle sources? Thanks, Jingao
Hi Jingao, thank you for your question. Are you are eluding to the (absolute and relative) PGE concentrations? If so, yes, while mantle heterogeneity is likely occurring in the source it is also possible that upon ascent the magmas entrained material with very low Pd/Ir (potentially podiform chromitite from the subducting oceanic slab that has been dispersed through the SCLM) - the variable entrainment of this material may account for some of the variability observed across the orangeites. I hope that answers your question, but if not please don’t hesitate to ask.
Hi Charlie, how do you interpret the absolute and relative abundances of the orangeites other than just reflecting the variable mantle sources? Thanks, Jingao
Hi Jingao, thank you for your question. Are you are eluding to the (absolute and relative) PGE concentrations? If so, yes, while mantle heterogeneity is likely occurring in the source it is also possible that upon ascent the magmas entrained material with very low Pd/Ir (potentially podiform chromitite from the subducting oceanic slab that has been dispersed through the SCLM) - the variable entrainment of this material may account for some of the variability observed across the orangeites. I hope that answers your question, but if not please don’t hesitate to ask.
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