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Geochemical sourcing of runoff from a young volcanic watershed to an impacted coral reef in Pelekane Bay, Hawaii

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Takesue R.T., and Storlazzi, C.D., 2019, Geochemical sourcing of runoff from a young volcanic watershed to an impacted coral reef in Pelekane Bay, Hawaii: Science of the Total Environment, v. 649, p. 353-363, https://doi.org/10.1016/j.scitotenv.2018.08.282.

Summary

Runoff of sediment and other contaminants from developed watersheds threatens coastal ecosystems and services. A sediment geochemical sourcing study was undertaken on a sediment-impacted coral reef flat to identify terrestrial sediment sources and how these changed over time. Geochemical signatures were identified for watershed soils that formed on Hawaiian basaltic and alkalic lavas using relatively immobile compatible (Ni, Sc) and incompatible (Nb, REE, Th) elements quantified by ICP-MS in total decompositions of the fine fraction of surface soils. Some soils also contained ash from late-erupting cinder conesthat added alkalic geochemical signatures, resulting in distinctive mixed signatures near these geologic features. Sediment [...]

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Type Scheme Key
local-index unknown 70199129
local-pk unknown 70199129
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/j.scitotenv.2018.08.282
series unknown Science of the Total Environment

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citationTypeArticle
journalScience of the Total Environment
languageEnglish
parts
typevolume
value649

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