This layer became known as the iridium anomaly . Tektites - Tektites are quartz grains which are vaporized under intense heat and pressure, and cool into glass beads with no crystalline structure. Tektites were probably formed during a meteorite or comet collision. Tektites are abundant in the K-T layer. Shocked quartz - When quartz is put under extremely high pressure, it can cleave in parallel planes.
Shocked quartz is found at nuclear bomb sites and known meteorite impact areas.
Shocked quartz is abundant in the K-T layer. It is used as an indicator of meteor impact. It has been found in abnormally high abundance in the K-T layer. Most likely formed during a massive collision. As stated in our privacy policy , we fully respect your privacy and will not use your e-mail address for any purpose other than the newsletter subscription.