Essays about: "toasted quartz"

Found 1 essay containing the words toasted quartz.

  1. 1. Impactites from the Hiawatha crater, North-West Greenland

    University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

    Author : Jacob Gustafsson; [2020]
    Keywords : Hiawatha; impact crater; Cape York; Baffin Bay; Greenland Ice Sheet; Younger Dryas; meteorite; impactite; organic carbon; conifer; vitrinite reflectance; Ro; cellular texture; chromite; chromium isotope; toasted quartz; ballen quartz; melted carbonate; granular zircon; planar deformation feature;

    Abstract : The recent discovery of the 31-km-wide Hiawatha impact crater has raised unanswered questions about its age, impactor and highly unusual organic carbon component. Previous research suggests a fractionated iron meteorite impactor, a probable maximum 3–2.4 Ma impact age and a possible Younger Dryas impact age. READ MORE