An experimental model for the tektite fluvial transport based on the most distal Polish moldavite occurrences

· by · in ,

Brachaniec, T.

Meteoritics & Planetary Science. doi: 10.1111/maps.13035

LINK

“Reworking and redeposition of tektites is a highly complex and multistage geological process including many factors. A tumbling experiment was therefore undertaken with the aim of estimating a distance of transport that such moldavites can withstand. Though the experiment probably did not accurately mimic natural conditions, our results proved that moldavites can withstand considerable transport only over a distance of a few kilometers. Observed abrasion of tektites was significant in the early stage of experimental transport; the rate of abrasion decreased correlatively with increasing distance of transport as usual. Overall, given the results obtained from this experimental study and their state of preservation described in the literature, it is very likely that Polish tektites were reworked and redeposited by rivers from the Sudetes Mountains. Based on the paleoreconstruction of river flows, it can be assumed that the Polish tektites originated from two independent sediment supply areas.”

Related posts (automatically generated):

  1. A scheme for moldavite fluvial abrasion based on observations from a natural river stream
  2. Chemistry of Tertiary sediments in the surroundings of the Ries impact structure and moldavite formation revisited
  3. Structural changes in shocked tektite and their implications to impact-induced glass formation
  4. Constraints on the origins of iron silicide spherules in ultrahigh-temperature distal impact ejectaOPEN ACCESS 
  5. Structural changes in shocked tektite and their implications to impact-induced glass formationOPEN ACCESS 
  6. Identification of the ejecta deposit formed by the Australasian Tektite Event at Huai Om, northeastern ThailandOPEN ACCESS 
  7. Evidence for subsolidus quartz-coesite transformation in impact ejecta from the Australasian tektite strewn fieldOPEN ACCESS 
  8. The fate of moderately volatile elements in impact events—Lithium connection between the Ries sediments and central European tektites.
  9. The behavior of osmium and other siderophile elements during impacts: Insights from the Ries impact structure and central European tektites
  10. Implications for behavior of volatile elements during impacts—Zinc and copper systematics in sediments from the Ries impact structure and central European tektites.
Tags: ,