Author: R. H. Rainbird
Publisher: Natural Resources Canada
ISBN: 0660180278
Category : Sedimentary rocks
Languages : en
Pages : 11

Get Book Here

Book Description
Presents an examination of field relationships along the northern margin of Baker Lake Basin, Nunavut, with the goal of establishing the stratigraphy of the Dubawnt Supergroup in relation to paleogeography, depositional setting, and provenance. Includes information on the regional geology, local geology (Christopher Island Formation sedimentary & volcanic rocks, the newly named Amarook Formation, and the overlying Pitz and Thelon formations), and discusses faulting during the development of the Baker Lake Basin.

Author: Geological Survey of Canada
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 200

Get Book Here

Book Description
Review of geological research related to the Canadian Shield provides papers covering topics such as these: gravity profiles across the Sleepy Dragon Complex in the Slave structural province, Northwest Territories; surficial geology & implications for drift prospecting, Hope Bay area NWT; metallogeny in the western Churchill Province; Precambrian geology progress report in Keewatin; various papers about the Kaminak greenstone belt, NWT; tectonostratigraphy of central Sturgeon Lake, Ontario; structural transect of the central Wabigoon subprovince, Ont.; sedimentology of the Oak Ridges Moraine, Ont.; origin of the Kipawa syenite complex, Quebec; the Obedjiwan nepheline syenite, Que.; and geochemistry & petrogenesis of the Lapeyrère gabbronorite, Que.

Author: T. Hadlari
Publisher: Natural Resources Canada
ISBN: 0660180286
Category : Sedimentary rocks
Languages : en
Pages : 12

Get Book Here

Book Description
This report is part of an ongoing study to characterize both sequence stratigraphy and chronostratigraphy of the Baker Lake Basin, Nunavut. The investigators examined well-exposed segments of the basin in detail, emphasizing sequence stratigraphic analysis to identify genetic packages of strata related to tectonically controlled basin-filling rhythms. Three sections exposed at the western edge of Thirty Mile Lake have been measured and correlated, yielding data on five depositional sequences. After an introduction on the geologic setting of the study area, the report provides facies assemblage descriptions and interpretations of the five depositional sequences of the lower Baker Lake Group. Finally, the accommodation (or space made available for a sedimentary system to fill) cycle in the basin is discussed and conclusions are drawn regarding the subsidence mechanism in the basin.

Author: Sandra E. Johnstone
Publisher: Natural Resources Canada
ISBN: 0660187353
Category : Geology, Structural
Languages : en
Pages : 11

Get Book Here

Book Description
This report summarizes observations & structural data collected in the area of the Walker Lake shear zone in the Committee Bay supracrustal belt, central Nunavut. It first reviews the general geology of the metasedimentary & volcanic rocks of the Prince Albert group and the intrusive rocks (tonalite, granite) which were observed in the shear zone. It then describes the three generations of ductile structures that were identified in proximity to the shear zone, and offers some preliminary interpretations regarding the relationship of the shear zone to regional deformation.

Author: R. McNeely
Publisher: Natural Resources Canada
ISBN: 0662438116
Category : Carbon
Languages : en
Pages : 156

Get Book Here

Book Description

Author: Eric A. De Kemp
Publisher: Natural Resources Canada
ISBN: 0660187388
Category : Geology, Structural
Languages : en
Pages : 13

Get Book Here

Book Description
The basal surface of the Bravo Lake Formation, central Baffin Island, represents a rapid, conformable transition from iron-enriched marine deposition to near-basin margin shallow marine volcanism. This report presents results of detailed structural, stratigraphic, & three-dimensional mapping of this basal surface in an area south-west of Nadluardjuk Lake. It includes information on the general geology of the area, stratigraphy, characteristics of exposed rocks, and structural geology.

Author: Margaret Kielian
Publisher: Academic Press
ISBN: 0128207620
Category : Science
Languages : en
Pages : 406

Get Book Here

Book Description
Advances in Virus Research, Volume 108, in this ongoing series, highlights new advances in the field, with this new volume presenting interesting chapters on topics including Virus infections of the developing brain, Geminivirus assembly, Flavivirus assembly, Cell-cell transmission, Archael virus assembly, Potyvirus assembly, Poxvirus assembly and exit, Mycovirus assembly, Reo/orbivirus assembly and exit, Giant virus assembly, Quasi-enveloped virus assembly/exit, and Betaherpesvirus assembly and exit. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Advances in Virus Research series - Includes the latest information on virus assembly and exit pathways

Author:
Publisher: Natural Resources Canada
ISBN:
Category :
Languages : en
Pages : 38

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 366

Get Book Here

Book Description

Author: K.C. Condie
Publisher: Elsevier
ISBN: 0080869092
Category : Science
Languages : en
Pages : 553

Get Book Here

Book Description
As a final product of the International Geological Correlation Program (IGCP) Project 217, this volume brings together significant advances in the understanding of Proterozoic crustal evolution. This IGCP Project focussed on nine research objectives: 1) Comparison of Archean and Proterozoic supracrustal assemblages to more fully understand differences between Archean and post-Archean tectonic regimes; 2) To more fully understand the geochemical differences between Archean and post-Archean sediments and to evaluate the various factors that control sediment composition; 3) From combined U/Pb zircon and whole-rock Sm/Nd studies, to see if the apparent 2.4-2.0 continental crust "generation gap" is real; 4) To employ new techniques in the dating of individual zircons to more fully understand Proterozoic tectonic history and the role of crustal reworking; 5) From trace element ratios and Nd isotopic data from basalts, to better understand Proterozoic mantle evolution; 6) To encourage more detailed studies of the anorogenic granite-anorthosite association to better understand its origin and significance in terms of crustal evolution; 7) From combined Nd, Pb, and Sr isotopic data, to more precisely estimate the amount of new continental crust formed during the Proterozoic; 8) To encourage joint P-T and geochronological studies of Proterozoic and high-grade terranes to better understand Proterozoic orogenesis: and 9) To try and understand why hydrothermal precious metal deposits are relatively rare in the Proterozoic compared to both the Archean and the Phanerozoic. The book should be of interest to professionals in the geosciences (especially geochemists, petrologists and structural geologists) and graduate students in the same fields.