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Professor Madeleine Humphreys' Outputs (3)

Trace element constraints on the differentiation and crystal mush solidification in the Skaergaard intrusion, Greenland (2018)
Journal Article
Namur, O., & Humphreys, M. C. (2018). Trace element constraints on the differentiation and crystal mush solidification in the Skaergaard intrusion, Greenland. Journal of Petrology, 59(3), 387-418. https://doi.org/10.1093/petrology/egy032

New major and trace element analyses of plagioclase and clinopyroxene in gabbros from the Skaergaard intrusion are used to understand the mechanisms of crystallization in the main magma body and in the crystal mush. Crystal cores show a continuous ch... Read More about Trace element constraints on the differentiation and crystal mush solidification in the Skaergaard intrusion, Greenland.

Tracking volatile behaviour in sub-volcanic plumbing systems using apatite and glass: insights into pre-eruptive processes at Campi Flegrei, Italy (2018)
Journal Article
Stock, M. J., Humphreys, M. C., Smith, V. C., Isaia, R., Brooker, R. A., & Pyle, D. M. (2018). Tracking volatile behaviour in sub-volcanic plumbing systems using apatite and glass: insights into pre-eruptive processes at Campi Flegrei, Italy. Journal of Petrology, 59(12), 2463-2492. https://doi.org/10.1093/petrology/egy020

Volatile elements play an important role in many aspects of the physicochemical architecture of sub-volcanic plumbing systems, from the liquid line of descent to the dynamics of magma storage and eruption. However, it remains difficult to constrain t... Read More about Tracking volatile behaviour in sub-volcanic plumbing systems using apatite and glass: insights into pre-eruptive processes at Campi Flegrei, Italy.

First measurements of OH-C exchange and temperature-dependent partitioning of OH and halogens in the system apatite - silicate melt (2018)
Journal Article
Riker, J., Humphreys, M., Brooker, R., de Hoog, J., & EIMF. (2018). First measurements of OH-C exchange and temperature-dependent partitioning of OH and halogens in the system apatite - silicate melt. American Mineralogist, 103(2), 260-270. https://doi.org/10.2138/am-2018-6187ccby

We present the first integrated study of carbonate, hydroxyl, fluoride, and chloride ion partitioning in the apatite-melt system. We determined volatile partitioning behavior between apatite and silicate melt for both haplobasaltic andesite and trach... Read More about First measurements of OH-C exchange and temperature-dependent partitioning of OH and halogens in the system apatite - silicate melt.