15F6 Emma Humphreys-Williams | Natural History Museum

Dr Emma Humphreys-Williams

Dr Emma Humphreys-Williams

Analytical Chemist

Department: Core Research Laboratories
Division: Imaging and Analysis Centre
Contact: email
Phone: 02079425497

Specialisms

ICP-AES, alkali fusions, elemental analysis, geochemistry, intraplate volcanism, mantle, mantle xenoliths, petrology, sample preparation, volcanic carbonatites, wet chemistry

Summary

Within the wet chemistry labs at the museum I maintain and run our Inductively coupled plasma-atomic emission spectrometer (ICP-AES) and carbon, hydrogen and nitrogen (CHN) elemental analyser. I am also involved with sample preparation and dissolution for many scientific applications. I work with a wide range of scientists from within and external to the museum. My research interests are concerned with understanding how melting occurs in the Earth's mantle and how the mantle is continually evolving; using intraplate volcanism to understand these processes. My masters research focused on ocean island basalts (OIB), examining the influence of the lithosphere thickness on the composition of erupted lavas. My PhD research focused on continental volcanism and rapidly erupted volcanic carbonatites as tools to examine melting beneath the continents. Using petrology and geochemistry, my research focused on the composition of the mantle as detailed by mantle xenoliths, and the composition of primitive melts in such environments. I am particularly interested in the source of carbon found in carbonatites and the relationship between intrusive carbonatites and volcanic carbonatites. My continuing research uses petrology and geochemistry to further understand these melts in Calatrava, Spain and Jacupiranga, Brazil.

Qualifications

Degrees

PhD, University of Bristol, UK, 2007 - 2011

MSci (hons), University of Durham, UK, 2003 - 2007

Highlighted publications

Humphreys ER, Bailey K, Hawkesworth CJ, Wall F, Najorka J, et al. (2010) Aragonite in olivine from Calatrava, Spain-Evidence for mantle carbonatite melts from > 100 km depth. GEOLOGY, 38 (10) : 911 - 914. doi: 10.1130/G31199.1

Humphreys ER, Niu Y (2009) On the composition of ocean island basalts (OIB): The effects of lithospheric thickness variation and mantle metasomatism. Lithos, 112 (1-2) : 118 - 136. doi: 10.1016/j.lithos.2009.04.038

Grants

HiTech AlkCarb - New geomodels to explore deeper for High-Technology critical raw materials in Alkaline rocks and Carbonatites
Funding: H2020 Societal Challenges
Total value £3,668,801.45 (to Museum £94,265)
Dates: 2016 - 2020

Publications

Markovic T, Manzoor S, Humphreys-williams E, Kirk G, Vilar R, Weiss DJ (2016) Experimental determination of zinc isotope fractionation in complexes with the phytosiderophore 2’-deoxymugeneic acid (DMA) and its structural analogues, and implications for plant uptake mechanisms. Environmental Science & Technology, doi: 10.1021/acs.est.6b00566

Bridgestock L, Van deFlierdtT, Rehkämper M, Paul M, Middag R, Milne A, Lohan MC, Baker AR, Chance R, Khondoker R, Strekopytov S, Humphreys-williams E, Achterberg EP, Rijkenberg MJA, Gerringa LJA, De BaarHJW (2016) Return of naturally sourced Pb to Atlantic surface waters. Nature Communications, 7 : 12921 - 12921. doi: 10.1038/ncomms12921

Bhanot KK, Downes H, Petrone CM, Humphreys-williams E (2016) Textures in spinel peridotite mantle xenoliths using micro-CT scanning: Examples from Canary Islands and France. Lithos, doi: 10.1016/j.lithos.2016.08.004

Larner F, Woodley LN, Shousha S, Moyes A, Humphreys-williams E, Strekopytov S, Halliday AN, Rehkämper M, Coombes RC (2015) Zinc isotopic compositions of breast cancer tissue. Metallomics, 7 (1) : 112 - 117. doi: 10.1039/C4MT00260A

Bhanot K, Downes H, Humphreys-williams E, Petrone C (2014) CT scanning of Spinel-Pyroxene Clusters in Mantle Peridotite Xenoliths from the Massif Central, France and Lanzarote, Canary Islands.. Presented at ToScA symposium.

Runsey M, Welch M, Origlieri M, Creasy G, Kampf A, Burgio L, Spratt J, Humphreys_williams E, Kirk C (2014) A redefinition of Claringbullite to Cu4ClF(OH)6; the importance of type material and group/series based studies. 21st General Meeting of the International Mineralogical Association< 04C0 /i>, 19 9 - 1 9 9375 - 375.

(2013) H – Goldschmidt Abstracts 2013. Mineralogical Magazine 77 (5) : 1239 - 1351. doi: 10.1180/minmag.2013.077.5.8

Niu Y, Wilson M, Humphreys-williams E, O'hara MJ (2012) A trace element perspective on the source of ocean island basalts (OIB) and fate of subducted ocean crust (SOC) and mantle lithosphere (SML). Episodes: journal of international geoscience, 35 (2) : 310 - 327.

Niu Y, Wilson M, Humphreys ER, O HaraMJ (2011) The origin of intra-plate ocean island basalts (OIB): the lid effect and its geodynamic implications. Journal of Petrology, 57 : 1443 - 1468.

Humphreys ER, Bailey K, Hawkesworth CJ, Wall F, Najorka J, Rankin AH (2010) Aragonite in olivine from Calatrava, Spain-Evidence for mantle carbonatite melts from > 100 km depth. GEOLOGY, 38 (10) : 911 - 914. doi: 10.1130/G31199.1

Humphreys ER, Niu Y (2009) On the composition of ocean island basalts (OIB): The effects of lithospheric thickness variation and mantle 37BF metasomatism. Lithos, 112 (1-2) : 118 - 136. doi: 10.1016/j.lithos.2009.04.038

Humphreys ER, Bailey DK, Hawkesworth CJ, Wall F, Hammond S (2008) Mantle xenoliths from the Calatrava volcanic province, Spain – Evidence for carbonatite-silicate interaction in the upper mantle.

Courses taught

Postgraduate: Soils and Regolith: from Parent Rock to Critical Resource
2/2015.

Introduction

Summary

Within the wet chemistry labs at the museum I maintain and run our Inductively coupled plasma-atomic emission spectrometer (ICP-AES) and carbon, hydrogen and nitrogen (CHN) elemental analyser. I am also involved with sample preparation and dissolution for many scientific applications. I work with a wide range of scientists from within and external to the museum. My research interests are concerned with understanding how melting occurs in the Earth's mantle and how the mantle is continually evolving; using intraplate volcanism to understand these processes. My masters research focused on ocean island basalts (OIB), examining the influence of the lithosphere thickness on the composition of erupted lavas. My PhD research focused on continental volcanism and rapidly erupted volcanic carbonatites as tools to examine melting beneath the continents. Using petrology and geochemistry, my research focused on the composition of the mantle as detailed by mantle xenoliths, and the composition of primitive melts in such environments. I am particularly interested in the source of carbon found in carbonatites and the relationship between intrusive carbonatites and volcanic carbonatites. My continuing research uses petrology and geochemistry to further understand these melts in Calatrava, Spain and Jacupiranga, Brazil.

Qualifications

Degrees

PhD, University of Bristol, UK, 2007 - 2011

MSci (hons), University of Durham, UK, 2003 - 2007

Highlighted publications

Humphreys ER, Bailey K, Hawkesworth CJ, Wall F, Najorka J, et al. (2010) Aragonite in olivine from Calatrava, Spain-Evidence for mantle carbonatite melts from > 100 km depth. GEOLOGY, 38 (10) : 911 - 914. doi: 10.1130/G31199.1

Humphreys ER, Niu Y (2009) On the composition of ocean island basalts (OIB): The effects of lithospheric thickness variation and mantle metasomatism. Lithos, 112 (1-2) : 118 - 136. doi: 10.1016/j.lithos.2009.04.038

Projects

Grants

HiTech AlkCarb - New geomodels to explore deeper for High-Technology critical raw materials in Alkaline rocks and Carbonatites
Funding: H2020 Societal Challenges
Total value £3,668,801.45 (to Museum £94,265)
Dates: 2016 - 2020

Publications

Publications

Markovic T, Manzoor S, Humphreys-williams E, Kirk G, Vilar R, Weiss DJ (2016) Experimental determination of zinc isotope fractionation in complexes with the phytosiderophore 2’-deoxymugeneic acid (DMA) and its structural analogues, and implications for plant uptake mechanisms. Environmental Science & Technology, doi: 10.1021/acs.est.6b00566

Bridgestock L, Van deFlierdtT, Rehkämper M, Paul M, Middag R, Milne A, Lohan MC, Baker AR, Chance R, Khondoker R, Strekopytov S, Humphreys-williams E, Achterberg EP, Rijkenberg MJA, Gerringa LJA, De BaarHJW (2016) Return of naturally sourced Pb to Atlantic surface waters. Nature Communications, 7 : 12921 - 12921. doi: 10.1038/ncomms12921

Bhanot KK, Downes H, Petrone CM, Humphreys-williams E (2016) Textures in spinel peridotite mantle xenoliths using micro-CT scanning: Examples from Canary Islands and France. Lithos, doi: 10.1016/j.lithos.2016.08.004

Larner F, Woodley LN, Shousha S, Moyes A, Humphreys-williams E, Strekopytov S, Halliday AN, Rehkämper M, Coombes RC (2015) Zinc isotopic compositions of breast cancer tissue. Metallomics, 7 (1) : 112 - 117. doi: 10.1039/C4MT00260A

Bhanot K, Downes H, Humphreys-williams E, Petrone C (2014) CT scanning of Spinel-Pyroxene Clusters in Mantle Peridotite Xenoliths from the Massif Central, France and Lanzarote, Canary Islands.. Presented at ToScA symposium.

Runsey M, Welch M, Origlieri M, Creasy G, Kampf A, Burgio L, Spratt J, Humphreys_williams E, Kirk C (2014) A redefinition of Claringbullite to Cu4ClF(OH)6; the importance of type material and group/series based studies. 21st General Meeting of the International Mineralogical Association, 19 9 - 1 9 9375 - 375.

(2013) H – Goldschmidt Abstracts 2013. Mineralogical Magazine 77 (5) : 1239 - 1351. doi: 10.1180/minmag.2013.077.5.8

Niu Y, Wilson M, Humphreys-williams E, O'hara MJ (2012) A trace element perspective on the source of ocean island basalts (OIB) and fate of subducted ocean crust (SOC) and mantle lithosphere (SML). Episodes: journal of international geoscience, 35 (2) : 310 - 327.

Niu Y, Wilson M, Humphreys ER, O HaraMJ (2011) The origin of intra-plate ocean island basalts (OIB): the lid effect and its geodynamic implications. Journal of Petrology, 57 : 1443 - 1468.

Humphreys ER, Bailey K, Hawkesworth CJ, Wall F, Najorka J, Rankin AH (2010) Aragonite in olivine from Calatrava, Spain-Evidence for mantle carbonatite melts from > 100 km depth. GEOLOGY, 38 (10) : 911 - 914. doi: 10.1130/G31199.1

Humphreys ER, Niu Y (2009) On the composition of ocean island basalts (OIB): The effects of lithospheric thickness variation and mantle metasomatism. Lithos, 112 (1-2) : 118 - 136. doi: 10.1016/j.lithos.2009.04.038

Humphreys ER, Bailey DK, Hawkesworth CJ, Wall F, Hammond S (2008) Mantle xenoliths from the Calatrava volcanic province, Spain – Evidence for carbonatite-silicate interaction in the upper mantle.

Teaching and students

Courses taught

Postgraduate: Soils and Regolith: from Parent Rock to Critical Resource
2/2015.

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