Essays about: "Early Proterozoic"

Found 3 essays containing the words Early Proterozoic.

1. 1. Petrogenesis of Carbonatites in the Alnö Complex, Central Sweden

   University essay from Institutionen för geovetenskaper

   Author : Sherissa Roopnarain; [2013]
   Keywords : Petrogenesis; Carbonatite; Alnö Complex; Stable Isotope; Rare Earth Element REE ; Kimberlite; Sustainable Development; Resource Mining; Rural Landscape; Natural Heritage.;

   Abstract : The Alnö Complex is a Late Precambrian alkaline and carbonatite intrusion (c. 30km2) into Early Proterozoic country rock that extends from the north east, to the north western shoulder of Alnö Island. READ MORE

3. 2. Re-processing of Shallow and Deep Crustal Reflection Seismic Data along BABEL Line 7, Central Sweden

   University essay from Geofysik

   Author : Hanieh Shahrokhi; [2012]
   Keywords : ;

   Abstract : The BABEL project (Baltic And Bothnian Echoes from the Lithosphere) was a collaboration among British, Danish, Finnish, German and Swedish geoscientists to acquire deep-crustal reflection and wide-angle refraction data in the Baltic Shield and Gulf of Bothnia. In 1989, the collection of 2,268 km of deep marine reflection seismic data was carried out. READ MORE

4. 3. A petrographic and geochemical study of the Early Proterozoic, Bangenhuk granitoid rocks of Ny Friesland, Svalbard

   University essay from Lunds universitet/Geologiska institutionen

   Author : Patric Carlsson; [1993]
   Keywords : geography; geochemistry; petrography; geology; Early Proterozoic; Bangenhuk granitoid rocks; Ny Friesland; Svalbard; Earth and Environmental Sciences;

   Abstract : Old Red Sandstones and younger strata overlie a variety of deformed and metamorphosed Early Paleozoic and Precambrian rocks on Svalbard, referred to as the Hecla Hoek Complex. At least three different terranes are recognized, occurring in eastern, northwestern and southwestern areas. READ MORE