Fig. 2: REE signatures of the tektites and microtektites studied.
From: Isotopic evolution of planetary crusts by hypervelocity impacts evidenced by Fe in microtektites

REE concentrations are normalized to CI-chondrite values84. LN Larkman Nunatak, Antarctica, TAM Transantarctic Mountains, Antarctica, SRM Sør Rondane Mountains, Antarctica, Widerøefjellet, ODP microtektites from ocean sediments collected during Ocean Drilling Programs 768B, 769 A and 1144 A, Ocean Sediments – microtektites collected from piston cores during oceanographic studies.