Ultramafische Gesteine

UB-N-NP

Serpentinites are formed during subduction of oceanic crust and can give insights to processes occurring, when the crust meets the mantle.
Herkunft
Serpentinite from the Col des Bagnelles in the Vosges Mountains, France
Ursprünglicher Hersteller
CNRS-CRPG
Eigenschaften
  • Highly depleted in most trace elements, except for transition metals.
  • LILE (Rb, Sr, K, Ba): 4.00 - 166 µg/g.
  • HFSE (Zr, Hf, Th, U, Nb, Ta) 0.02-13 µg/g.
  • Transition metals (Sc, V, Cr, Co, Ni, Cu, Zn) 0.3-55.0 µg/g.
Nutzbar für
LA-ICP-MS
LIBS
µXRF
XRF
Produktinformationen
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Ultramafische Gesteine

Ultramafic rocks are characterised by very low silica (SiO2) content of <45 m/m%. and low potassium. Their principal mineralogy is comprised of Mg and Fe-rich minerals such as pyroxenes and olivine. The Earth's mantle consists of ultramafic rocks. Another term used to describe these rocks is ultrabasic, which includes rocks, that have a low silica content, but are not high in Mg and Fe i.e. carbonatites and ultrapotassic igneous rocks.