If you made any changes in Pure these will be visible here soon.

Personal profile

Personal information

Telefoon+31 20 59 81824
E-mailj.m.koornneef@vu.nl
KamerH-358

Research

Janne Koornneef is an isotope geochemist studying the composition of the Earth’s mantle and the volcanic rocks derived from it. She aims to understand the processes that control the compositional variability of lavas and has a specific interest in melt- and fluid related processes within the mantle. She uses multiple isotope systems (U-series, Nd, Sr, Hf, Pb) in combination with major- and trace element chemistry of mantle and volcanic rocks to look at: (1) mantle melting rates and melt transport times (2) the influence of source heterogeneity on the melting process and lava compositions; (3) Recycling fluxes in subduction zones (4) mantle metasomatism and diamond formation processes in subcratonic mantle.

Projects

As a post-doc Janne worked on technique development using the latest generation mass spectrometer (TRITON-Plus TIMS) to measure small geological samples for their Sr, Nd and Pb isotope compositions. In collaboration with the manufacturer of the instrument she developed techniques to use the latest design 1012 and new 1013 Ohm feedback resistors that lead to a significant improvement in signal to noise ratios and therefore precision. She established the benefit of the now commercially available 1013 Ohm amplifiers over default 1011 Ohm amplifiers in multiple applications of small sample analyses (mineral inclusions in diamonds, melt inclusions in olivine, dust from ice cores etc).

Her current research is embedded in the Europlanet programme (www.europlanet-2020-ri.eu/) and she is part of the NEXUS 1492 project (www.nexus1492.eu). She supervises multiple PhD and MSc students in their research projects to apply the techniques to analyse sub ng samples. Her ERC-STG 2017 funded project "ReVolusions" that will Quantify Recycling fluxes of Earth surface materials and Volatiles in subduction zones by use of melt inclusions, will be launched in January 2018.

Visit her personal website at: www.geo.vu.nl/~jkoorn/Janne_Koornneef/Home.html

Ancillary activities

No ancillary activities

Ancillary activities are updated daily

Fingerprint Dive into the research topics where J.M. Koornneef is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 9 Similar Profiles
Isotopes Chemical Compounds
melt inclusion Earth & Environmental Sciences
Ionization Chemical Compounds
Mass spectrometry Chemical Compounds
Trace Elements Chemical Compounds
isotope Earth & Environmental Sciences
mantle Earth & Environmental Sciences
Resistors Chemical Compounds

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2008 2019

Ancient recycled lower crust in the mantle source of recent Italian magmatism

Koornneef, J. M., Nikogosian, I., van Bergen, M. J., Vroon, P. Z. & Davies, G. R., 19 Jul 2019, In : Nature Communications. 10, p. 1-10 10 p., 3237.

Research output: Contribution to JournalArticleAcademicpeer-review

Open Access
Recycling
Isotopes
crusts
Earth mantle
recycling

Competing droughts affect dust delivery to Sierra Nevada

Aarons, S. M., Arvin, L. J., Aciego, S. M., Riebe, C. S., Johnson, K. R., Blakowski, M. A., Koornneef, J. M., Hart, S. C., Barnes, M. E., Dove, N., Botthoff, J. K., Maltz, M. & Aronson, E. L., 18 Sep 2019, In : Aeolian Research. 41, p. 1-11 11 p., 100545.

Research output: Contribution to JournalArticleAcademicpeer-review

drought
dust
dry season
nutrient
ecosystem
Open Access
File
melt inclusion
Trace Elements
Isotopes
magmatism
olivine

Highly heterogeneous depleted mantle recorded in the lower oceanic crust

Lambart, S., Koornneef, J. M., Millet, M. A., Davies, G. R., Cook, M. & Lissenberg, C. J., 1 Jun 2019, In : Nature Geoscience. 12, 6, p. 482-486 5 p.

Research output: Contribution to JournalArticleAcademicpeer-review

oceanic crust
lower crust
mantle
melt
crustal recycling
Open Access
File
melt inclusion
Trace Elements
Isotopes
olivine
trace element

Activities 2013 2013

  • 1 Lecture / Presentation

Wetenschap en wetenschapsfilosofie

J.M. Koornneef (Speaker)
26 Sep 2013

Activity: Lecture / PresentationAcademic

Press / Media

Uitbarsting van Bardarbunga vulkaan op IJsland

J.M. Koornneef

7/01/15

1 media contribution

Press/Media: Other