Dataset
Data Publication
Electron microprobe analyses of quenched melts (now glass), chromite, and olivine to determine the role of contamination on chromite crystallization in ultramafic magmas
Keltie, Erin | Brenan, James
GFZ Data Services
(2025)
Descriptions
The data were generated in two labotories of the Dalhousie University in Halifax during a series of experiments to determine the solubility of chromite in komatiite mixed with different crustal contaminants. The experiments were designed to determine the solubility of the mineral chromite in silicate melt, with the dominant variable being the silica and iron content of the melt.
After equilibrating chromite with melt at 1192-1430 degrees Celcius, samples were quenched and the composition of the chromite, quenched melt (now glass), and olivine run-products were measured for major and minor elements by electron microprobe, and the chromium concentration in the glass was measured by laser ablation ICP-MS. Analytical procedures are included in the associated data description file.
The data are provided in a series of Excel worksheets containing five data tables. Table 1 is a summary of the composition of the starting materials used in experiments. Table 2 is a summary of the conditions of temperature, oxygen fugacity, experiment duration and initial sample composition. Table 3 is a summary of the major and minor element composition of the glass measured by electron microprobe and laser ablation ICP-MS. Tables 4 and 5 are summaries of the major and minor element composition of the olivine and chromite, respectively, measured by electron microprobe.
Keywords
MSL enriched keywords
minerals
oxide mineral
chromite
ore mine
silicate minerals
nesosilicates
olivine
equipment
electron probe micro-analyzer
Apparatus
microchemical analysis
electron probe micro analyser
igneous rock - extrusive
ultrabasic extrusive
komatiite
chemical elements
chromium
iron
Earth's structure
Earth crust
mass spectrometer
inductively coupled plasma-mass spectrometer
measured property
chromium
iron
oxygen
silicon
silicon dioxide
MSL vocabulary keywords corresponding to originally assigned keywords
chromite
ore mine
Originally assigned keywords
chromite
chromitite
ore deposit
chemical element > transition element > chromium
In Situ/Laboratory Instruments > Probes > ELECTRON MICROPROBES
In Situ/Laboratory Instruments > Spectrometers/Radiometers > LA-ICP-MS
Metadata
MSL enriched sub domains
geochemistry
microscopy and tomography
Resource Type
Source publisher
| GFZ Data Services |
Creators
| Keltie, Erin |
| Personal |
| https://orcid.org/0000-0003-2550-0055 |
| Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada |
| Brenan, James |
| Personal |
| https://orcid.org/0000-0003-4924-8288 |
| Department of Earth and Environmental Sciences, Dalhousie University, Halifax, Nova Scotia, Canada |
Contributors
| Brenan, James |
| Personal |
| https://orcid.org/0000-0003-4924-8288 |
| Department of Earth and Environmental Sciences, Dalhousie University, Halifax, Nova Scotia, Canada |
| Brenan, James |
| Personal |
| https://orcid.org/0000-0003-4924-8288 |
| Department of Earth and Environmental Sciences, Dalhousie University, Halifax, Nova Scotia, Canada |
Citation
Keltie, E., & Brenan, J. (2025). Electron microprobe analyses of quenched melts (now glass), chromite, and olivine to determine the role of contamination on chromite crystallization in ultramafic magmas [Dataset]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2025.004
References
Dates
| Created | 2025-01-06 |
| Issued | 2025 |
Language
- no language entry found -
Funding References
| Funder Name | Natural Sciences and Engineering Research Council of Canada |
| Funder Identifier | https://doi.org/10.13039/501100000038 |
| Award Title | Discovery Grant |
Rights
| Name | Creative Commons Attribution 4.0 International |
| URI | https://creativecommons.org/licenses/by/4.0/legalcode |
| Identifier | cc-by-4.0 |
| Identifier Scheme | SPDX |
| Scheme URI | https://spdx.org/licenses/ |
Locations
- no geo-locations found -