Planar deformation features
id:
planar-deformation-features-253-11807841
title:
Planar deformation features
text:
Planar deformation features, or PDFs, are optically recognizable microscopic features in grains of silicate minerals, consisting of very narrow planes of glassy material arranged in parallel sets that have distinct orientations with respect to the grain's crystal structure. PDFs are only produced by extreme shock compressions on the scale of meteor impacts. They are not found in volcanic environments. Their presence therefore is a primary criterion for recognizing that an impact event has occurr
brand slug:
wiki
category slug:
encyclopedia
description:
Microscopic features of silicate grains
original url:
https://en.wikipedia.org/wiki/Planar_deformation_features
date created:
date modified:
2023-08-09T11:00:58Z
main entity:
{"identifier":"Q7200957","url":"https://www.wikidata.org/entity/Q7200957"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/5/52/820qtz.jpg","width":399,"height":336}
fields total:
13
integrity:
15