Author: R. Thorsteinsson Publisher: Geological Survey of Canada ISBN: Category : Nature Languages : en Pages : 92
Book Description
"Boothia Uplift is a major structural feature that extends north from Boothia Peninsula to the northwestern extremity of Devon Island. On Somerset Island and Boothia Peninsula it consists of Precambrian crystalline rocks and Proterozoic sediments that are flanked by Cambrian to Lower Devonian platform-type sedimentary rocks. This report deals with strata of Late Silurian to Early Devonian age, the time of the principal crustal movements that produced the Uplift." --
Author: H.P. Trettin Publisher: Geological Society of America ISBN: 081375450X Category : Science Languages : en Pages : 581
Book Description
Fourteen chapters discuss regional stratigraphy by time intervals from Precambrian to Quaternary, while other chapters describe the geography, geomorphology, tectonics, geophysical characteristics, and resources of the region. A summary chapter includes geologic maps, structural cross-sections, a geotectonic correlation chart, a gravity map, and a location map for exploration wells in the Arctic Islands and northern Greenland. A wealth of additional information is contained on the nine accompanying plates.
Author: Teruya Uyeno Publisher: Geological Survey of Canada ISBN: Category : Conodonts Languages : en Pages : 224
Book Description
"The lower and middle Paleozoic strata of the eastern Arctic Archipelago change rapidly laterally from thin, shallow-water platform deposits to thicker, deeper water basinal deposits. The difficulty in correlating such strata has been overcome in part through well controlled conodont zonation, and by supplementary dating using palynomorphs and megafaunas. Such precise dating and correlation are essential for success in the search for petroleum and other mineral deposits. The study will also help refine calibration of the geological time scale in other parts of the world." --
Author: Alfred C. Lenz Publisher: NRC Research Press ISBN: 9780660193267 Category : Nature Languages : en Pages : 162
Book Description
Graptolites flourished from earliest Ordovician to Early Devonian, a time range of about 90 million years, and were widely distributed as marine benthic and planktonic colonial organisms around then-world.
Author: R. Thorsteinsson Publisher: Supply and Services ISBN: Category : Nature Languages : en Pages : 198
Book Description
The present study deals mainly with the stratigraphy, structural geology and environment of deposition of the strata of the Arctic Platform, comprising mainly a structurally concordant succession of lower Palaeozoic strata in the western three quarters of the island.
Author: Karsten Piepjohn Publisher: Geological Society of America ISBN: 0813725410 Category : Science Languages : en Pages : 700
Book Description
"To recognize the 25th anniversary of the Circum-Arctic Structural Events program, an effort organized by the Bundesanstalt fèur Geowissenschaften und Rohstoffe, this volume presents results from 18 major field expeditions involving 100+ geoscientists from a spectrum of disciplines. The volume focuses on the Proterozoic to Cenozoic tectonic evolution of the circum-Arctic region with correlations to adjacent orogens"--
Author: R. Thorsteinsson
Author: H.P. Trettin
Author: David Leigh Clark
Author: Michael A. Murphy
Author: Teruya Uyeno
Author: Alfred C. Lenz
Author: 
Author: R. Thorsteinsson
Author: Karsten Piepjohn
Author: