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Ries fall-out suevite at Aumühle

Bavaria, Ries impact crater (24 km, Miocene), Germany

Other media

Type
Other medium

Fall-out suevite exposed outside the inner ring of the Ries crater; alteration to montmorillonite by low-temperature meteoric water. Altered brownish suevite.

δ11B in ‰ (per mil) Values of the same system

Standard : NIST SRM 951

ValueRangenMineral or matrixSource
−26.3 ‰1secondary smectite (< 2 µm)
Single analysis (R40). 21 mg/kg B. Formation temperature 19 °C (Muttik et al., 2010); fluid calculated at +5.9 ‰ with the Williams et al. (2007) equation. Tetrahedral boron only: -29.2 ‰.
Muttik et al. (2011), Boron isotope composition of secondary smectite in suevites at the …

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Ries fall-out suevite at Aumühle, isotope signatures. https://www.isofind.tech/isotopes/en/sites/suevite-de-retombee-du-ries-a-aumuhle/ (accessed 2026-10-19).

@misc{isofind2026riesfalloutsueviteataumuhleis,
  title = {Ries fall-out suevite at Aumühle, isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/sites/suevite-de-retombee-du-ries-a-aumuhle/},
  note = {Accessed 2026-10-19}
}

Updated : 2026-10-19