Sökning: "Late Eocene"

Hittade 2 uppsatser innehållade orden Late Eocene.

1. 1. An Analysis and Interpretation of the Geoscience BC Trek Project Till Geochemical and Mineralogical Data to Determine the Surficial Geochemical Expression of Bedrock Au-Ag-Cu-Mo Mineralization on the Nechako Plateau, British Columbia, Canada.

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Karin Öberg; [2016]
   Nyckelord :British Columbia; till; gold; copper; mineralization; British Columbia; morän; mineralisering; guld; koppar;

   Sammanfattning : The mineral exploration in the interior of British Columbia is challenged by an extensive coverage of glacial sediments. The Geoscience British Columbia (GBC) Targeting Resources through Exploration and Knowledge (TREK) Survey has since 2013 collected till samples in the northern interior plateau of British Columbia, covering an area of approximately 25,000km2. LÄS MER

3. 2. Titanium- and chromium-rich opaque minerals in condensed sediments : chondritic, lunar and terrestrial origins

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Sanna Holm; [2008]
   Nyckelord :Ilmenite; chrome spinel; 3He; lunar impact ejecta; source rock; Middle Ordovician; Late Eocene; ilmenit; kromspinell; impakt ejekta; källbergart; mellanordovicium; sen eocen; Earth and Environmental Sciences;

   Sammanfattning : Evidence from terrestrial sedimentary successions indicate that the amount of extraterrestrial material reaching Earth is not constant, but has been increased during parts of the Phanerozoic. An increase in the flux of extraterrestrial material to Earth has been proposed for the Middle Ordovician and the Late Eocene. LÄS MER