Sökning: "ordinära kondriter"
Hittade 2 uppsatser innehållade orden ordinära kondriter.
- Master-uppsats, Lunds universitet/Geologiska institutionen
Sammanfattning : It has been suggested that the cosmic ray flux varies as Earth moves relative to the spiral arms in the galaxy. However, no satisfying record over the cosmic ray flux over long time scales has been presented. LÄS MER
- Kandidat-uppsats, Lunds universitet/Geologiska institutionen
Sammanfattning : Meteorites are easily altered in the oxygen-rich environment on the Earth surface. Fossil meteorites are thus uncommon and in the ones, which are found, almost all minerals are secondary. However, the spinel group mineral chromite is resistant to alteration and has successfully been used as a proxy for ordinary chondrites in sediment. LÄS MER