Fig. 1: Collection sites of the tektites and microtektites studied.
From: Isotopic evolution of planetary crusts by hypervelocity impacts evidenced by Fe in microtektites
The microtektites are collected from the sea sediments and sedimentary traps in Antarctica. n corresponds to the number of microtektites studied from each location. Top right – frequency distribution plot for δ56/54Fe values of the microtektites. *22° N and 104° E is one of the proposed crater locations based on the abundance of unmelted ejecta and microtektites12. **A location of the impact crater anywhere within the yellow oval explains the distribution of the microtektites and impact ejecta equally well12. ***Australasian strewn field after Folco et al80. extended to the Transantarctic Mountains12. The blue dashed line suggests an extension of the central lobe to the Widerøefjellet, SRM16. M.N. Muong Nong tektite shape type, WF Widerøefjellet, SRM Sør Rondane Mountains, Antarctica, FMt Frontier Mountains, Antarctica, TAM Transantarctic Mountains, Antarctica, MB Miller Butte, Antarctica, PdT Pian delle Tectiti, Antarctica, LN Larkman Nunatak, Antarctica, ODP microtektites from ocean sediments collected during Ocean Drilling Programs.
