Essays about: "textures shock"

Found 4 essays containing the words textures shock.

1. 1. Petrography of impactites from the Dellen impact structure, Sweden

   University essay from Lunds universitet/Geologiska institutionen

   Author : Robert Mroczek; [2023]
   Keywords : Dellen; Impact; structure; magnetite; apatite; shock waves; shock-metamorphic; features; Impactite; petrography; scanning electron microscope; SEM; geology; Earth and Environmental Sciences;

   Abstract : Identification and characterization of shock-metamorphic features in hypervelocity impact craters is important for our understanding of how shock waves interact with geologic materials and how impact craters form, which in turn is essential to our understanding of what role impact cratering played in the development of our solar system. Of particular interest are accessory minerals like apatite, which contains various volatiles that can affect the atmosphere of a body, or magnetite whose magnetic properties constitute a remote sensing indicator which allows us to study and understand the internal structures of distant bodies. READ MORE

3. 2. Classification of four mesosiderites and implications for their formation

   University essay from Lunds universitet/Geologiska institutionen

   Author : Gabriel Zachén; [2020]
   Keywords : mesosiderites; meteorites; stony-irons; classification; textures shock; emulsion; melt droplet; Lamont Acfer 265; QUE 86900; MAC 88102; Earth and Environmental Sciences;

   Abstract : Mesosiderites are rare stony-iron meteorites with enigmatic origins. Their unusual mix of crustal and core materials have inspired many formation theories over the last century. READ MORE

4. 3. Shock metamorphic features in zircon grains from the Mien impact structure : clues to conditions during impact

   University essay from Lunds universitet/Geologiska institutionen

   Author : Josefin Martell; [2018]
   Keywords : Zircon; shock metamorphism; Mien; FRGN zircon; granular texture; Earth and Environmental Sciences;

   Abstract : Jämfört med andra himlakroppar i vårt solsystem så finns det få välbevarade nedslagsstrukturer på jorden. Vi vet att jorden har påverkats av nedslag från rymden i lika stor utsträckning som övriga planeter och att dessa nedslag har influerat jordens geologiska och biologiska utveckling. READ MORE

5. 4. Traces of impact in crystalline rock : a summary of processes and products of shock metamorphism in crystalline rock with focus on planar deformation features in feldspars

   University essay from Lunds universitet/Geologiska institutionen

   Author : Fredrika Svahn; [2014]
   Keywords : Impacts; shock metamorphism; crater formation; shock metamorphic features; planar deformation features; alkali-feldspars; Siljan impact structure; Earth and Environmental Sciences;

   Abstract : Chockmetamorfa strukturer i alkalifältspater har genom studier i polarisationsmikroskop identi-fierats i graniter från Siljan- nedslagskrater. De mikroskopiska strukturer som observerats omfattas av; deformation bands, ladder textures, planar fractures, ”long deformation features", samt planar deformation features (PDFs). READ MORE