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Iceland: river and delta sediments and volcaniclastic rocks

Iceland (20 sampling points), Islande

Sediments

Type
Sediment

Samples from Carley et al. (2014, 2020) spread over the whole island (on-rift and off-rift). Aarons et al. (2023): mean +0.134 ± 0.06 ‰ (+0.136 ‰ weighted by TiO2), variations due to mixing of Icelandic mafic and felsic end-members rather than sorting or weathering (no link with CIA).

δ49Ti in ‰ (per mil) Values of the same system

Standard : OL-Ti

ValueRangenMineral or matrixSource
0.153 ± 0.064 ‰0.066 / 0.274 ‰14river sediment
Mean and standard deviation recalculated from 14 analyses, +0.066 to +0.274 (ISFK (Fauská) +0.178; ISKK (Krossá-Kækjudalsá) +0.274; ISHVt (Hverfisfljót) +0.066; ISOLF (Ölfusá) +0.214; ISR (Reyðará) +0.227; ISHo (Hofsá) +0.118; ISHMyr (Skálm) +0.124; ISM (Markarfljót) +0.179; ISLF (Lagarfljót) +0.085; ISJL (Jökulsá í Lóni) +0.133; ISMi (Miðá) +0.102; ISSG (Gigjukvisl) +0.071; ISFJAR (Fjarðarsá) +0.150; ISF (Fjallsá) +0.219). SiO2 from 51 to 65 %.
Aarons et al. (2023), Titanium transport and isotopic fractionation in the Critical Zone,…
0.116 ± 0.058 ‰0.067 / 0.184 ‰4volcaniclastic rock
Mean and standard deviation recalculated from 4 analyses, +0.067 to +0.184 (IXSd-1b (Selárdalur) +0.184; IXH-1a (Húsavikurkleif) +0.067; IXT-1b (Tjörnes) +0.144; IXKM (Mokollsdalur) +0.067). SiO2 from 49 to 62 %.
Aarons et al. (2023), Titanium transport and isotopic fractionation in the Critical Zone,…
0.126 ± 0.03 ‰0.105 / 0.147 ‰2delta sediment and beach sand
Mean and standard deviation recalculated from 2 analyses, +0.105 to +0.147 (ISB (Breiðdalsvík) +0.147; ISML (Markarfljót, embouchure) +0.105). SiO2 from 50 to 55 %.
Aarons et al. (2023), Titanium transport and isotopic fractionation in the Critical Zone,…

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Iceland: river and delta sediments and volcaniclastic rocks, isotope signatures. https://www.isofind.tech/isotopes/en/sites/islande-sediments-fluviatiles-deltaiques-et-roches-volcanoclastiques/ (accessed 2026-10-21).

@misc{isofind2026icelandriveranddeltasediments,
  title = {Iceland: river and delta sediments and volcaniclastic rocks, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/islande-sediments-fluviatiles-deltaiques-et-roches-volcanoclastiques/},
  note = {Accessed 2026-10-21}
}

Updated : 2026-10-21