Essays about: "crustal blocks"

Found 5 essays containing the words crustal blocks.

1. 1. Geophysical Data from Norrbotten, Sweden - Evidence for the Presence of a Crustal Scale Fault?

   University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

   Author : Jimmy Markström; [2022]
   Keywords : Self-Organizing Maps; Magnetic Anomaly; Radioisotopes; Geological Faults;

   Abstract : The method of combining multiple geophysical, geological, or geochemical datasets can reveal patterns of otherwise hidden features in the Earth’s crust. This may aid in geological mapping, locating economic mineral deposits and for general anomaly/feature detection. READ MORE

3. 2. Structural Reconnaissance Mapping of the Nasa Basement Window, Southern Norrbotten Caledonides

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Hugo Hedin Baastrup; [2018]
   Keywords : Caledonides; Belt; Window; Thrust; Shear; Basement; Nappe; Tectonic; Arjeplog; Nasa; Saltfjellet; Overprint;

   Abstract : Too few documentative descriptions exist from the reactivated Proterozoic Nasa Basement window in Sweden. This re-exposed crustal piece predominantly consisting of 1.8 Ga granite and volcanic basement rock lack structural evidences on maps. READ MORE

4. 3. The Birimian event in the Baoulé Mossi domain (West African Craton) : regional and global context

   University essay from Lunds universitet/Geologiska institutionen

   Author : Mikael Grenholm; [2014]
   Keywords : accretionary orogen; Atlantica; Birimian event; supercontinent cycle; Lomagundi-Jatuli event; Earth and Environmental Sciences;

   Abstract : The crystalline basement of the West African Craton (WAC) was established during the Siderian to Orosirian (circa 2.35-1.95 Ga) Birimian event through accretion of extensive tracts of juvenile crust that was tectonically juxtaposed with Archean cratons. READ MORE

5. 4. The Roots of a Magma Chamber, the Central Intrusion, Rum, NW-Scotland

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Tobias Mattsson; [2014]
   Keywords : Rum; Layered Ultrabasic Intrusion; Long Loch Fault; 3D modelling; Rum; Minerallagrad magmakammare; Long Loch Förskastningen; 3D modellering;

   Abstract : The island of Rum in the Inner Hebrides, NW-Scotland, hosts a central volcanic complex that is part of the British-Irish Palaeogene Igneous Province situated in NE- Ireland and NW- Scotland. On Rum, rocks from several stages of Palaeogene magmatic activity have been exposed by millions of years of erosion. READ MORE

6. 5. Robust U-Pb baddeleyite ages of mafic dykes and intrusions in southern West Greenland : constraints on the coherency of crustal blocks of the North Atlantic Craton

   University essay from Lunds universitet/Geologiska institutionen

   Author : Mimmi Nilsson; [2009]
   Keywords : geography; geology; West Greenland; mafic dykes; U-Pb baddeleyite; crustal blocks; North Atlantic craton; Earth and Environmental Sciences;

   Abstract : Popul�rvetenskaplig sammanfattning: Studien �r en del av ett st�rre projekt (LIP-projektet) som syftar till att med hj�lp av exakta dateringar av diabasg�ngar rekonstruera kontinenternas l�ge f�r c:a 2.5 miljarder �r sedan. READ MORE