Distribution of polycyclic aromatic hydrocarbons in eolian and eolian-deluvial sediments from the North Iceland

This work considers results of a study of Holocene cover sediments in Iceland. They are largely composed of wind-transported palagonitized hyaloclastite particles and coeval horizons of acid and basic tephras. It is established that polyciclic aromatic hydrocarbons (PAH) are released from basaltic g...

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Bibliographic Details
Main Authors: Geptner, A R, Alekseeva, T A, Pikovskiy, Yu I
Format: Dataset
Language:English
Published: PANGAEA 2002
Subjects:
Archive of Ocean Data
ARCOD
GAP-02-FRV
GAP-02-SRV
Iceland
Fnjoska River valley
Skjalfandafljot River valley
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.784925
https://doi.org/10.1594/PANGAEA.784925
Description
Summary:This work considers results of a study of Holocene cover sediments in Iceland. They are largely composed of wind-transported palagonitized hyaloclastite particles and coeval horizons of acid and basic tephras. It is established that polyciclic aromatic hydrocarbons (PAH) are released from basaltic glass in natural environments only in case of intense physicochemical alteration and destruction of its structure. This process does not influence PAH composition and their quantitative proportions. No new PAH formed during several thousands of years in Holocene section. Hydrocarbons are transferred from fixed state in basaltic glass into free state in palagonites practically without any changes. PAH were mainly redeposited by winds, derived together with palagonite from weathered hyaloclastites, and precipitated from atmosphere with tephra during eruptions.

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