Bulk rock data for the central-eastern Aleutian volcanoes
We present major and trace element data for 82 rock samples from central-eastern Aleutian volcanoes. Most samples were collected during joint GeoPRISMS-DCO-AVO field campaigns in 2015 and 2016 (PIs: Roman, Plank, Hauri). The samples were crushed in plastic ziploc bags using a hammer, cleaned with deionized water, and 1-10 mm fragments were powdered in a alumina-ceramic ball mill. Rock digestion followed the procedure of Kelley et al. (2003). Trace element analyses were conducted by ICP-MS using a PQ ExCell at Lamont-Doherty Earth Observatory (LDEO) following the methods of Wade et al. (2005). Major element analyses were conducted using an Agilent 700-series ICP-ES at LDEO following the methods of Wade et al. (2005). SiO2 is calculated by difference. LOI data were not collected for 26 samples. In those cases, a value of 1 wt% was assumed. The objectives of the work are to understand magmatic processes and characterize along-arc geochemical trends in the Aleutians. Melt inclusion and host olivine data from these samples samples are also published in Earthchem. A report that includes more information on the samples presented here can be found online: Plank, T., Rasmussen, D., Stelling, P., Roman, D. 2020. Field Report for the Collection of Mafic Tephra from the Aleutians Islands between Unimak and the Island of Four Mountains (Alaska, USA), Version 1.0. Interdisciplinary Earth Data Alliance (IEDA).
How to cite this dataset:
Rasmussen, D. J., Plank, T. A., 2021. Bulk rock data for the central-eastern Aleutian volcanoes, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). https://doi.org/10.26022/IEDA/111870.
DOI Creation Date:
Rasmussen, D.J. (2019). "The Aleutian arc through and through: Subduction dynamics and the generation, storage, and eruption of hydrous magmas." Diss. Columbia University;
Plank, T., Rasmussen, D., Stelling, P., Roman, D. (2020).
"Field Report for the Collection of Mafic Tephra from the Aleutians Islands between Unimak and the Island of Four Mountains (Alaska, USA), Version 1.0." Interdisciplinary Earth Data Alliance (IEDA)
Creative Commons Attribution-ShareAlike 4.0 International [CC BY-SA 4.0]
National Science Foundation: 1456814
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Aleutian Islands
User Contributed Keyword(s):
Volcano, whole rock, bulk rock, major, trace
Data Available On: