Geological Survey of Canada, Current Research (Online) no. 2000-D6

Geological Survey of Canada, Current Research (Online) no. 2000-D6 PDF Author: Edward L. King
Publisher: Natural Resources Canada
ISBN: 0660180499
Category :
Languages : en
Pages : 10

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Book Description
Reports findings of reconnaissance seismic surveys conducted on the north-east Grand Bank to study the near-surface sediments, assess the presence and characteristics of seabed geotechnical hazards, and examine the role of Quaternary glaciation and sea-level fluctuation on sediment distribution and characteristics. The regional setting is first reviewed and a refined regional stratigraphy is described based on new seismic data. Till deposits and moraine fields as observed from the seismic studies of the shelf glacial sediments are described. Finally, interpretations of the glacial history of the study area are offered and implications of the findings for offshore engineering related to oil & gas development are discussed.

Geological Survey of Canada, Current Research (Online) no. 2000-D6

Geological Survey of Canada, Current Research (Online) no. 2000-D6 PDF Author: Edward L. King
Publisher: Natural Resources Canada
ISBN: 0660180499
Category :
Languages : en
Pages : 10

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Book Description
Reports findings of reconnaissance seismic surveys conducted on the north-east Grand Bank to study the near-surface sediments, assess the presence and characteristics of seabed geotechnical hazards, and examine the role of Quaternary glaciation and sea-level fluctuation on sediment distribution and characteristics. The regional setting is first reviewed and a refined regional stratigraphy is described based on new seismic data. Till deposits and moraine fields as observed from the seismic studies of the shelf glacial sediments are described. Finally, interpretations of the glacial history of the study area are offered and implications of the findings for offshore engineering related to oil & gas development are discussed.

Geological Survey of Canada, Current Research (Online) no. 2002-D6

Geological Survey of Canada, Current Research (Online) no. 2002-D6 PDF Author:
Publisher: Natural Resources Canada
ISBN: 0662316762
Category :
Languages : en
Pages : 13

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Book Description


Geological Survey of Canada, Current Research (Online) no. 2002-E13

Geological Survey of Canada, Current Research (Online) no. 2002-E13 PDF Author: G. Chi
Publisher: Natural Resources Canada
ISBN: 0662324684
Category :
Languages : en
Pages : 13

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Book Description


Discharge measurements at gaging stations

Discharge measurements at gaging stations PDF Author: D. Phil Turnipseed
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 87

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Book Description


Selected Mining Districts of Utah

Selected Mining Districts of Utah PDF Author: Carl L. Ege
Publisher: Utah Geological Survey
ISBN: 1557917264
Category : Business & Economics
Languages : en
Pages : 64

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Book Description
Whether you are a geologist, history buff, or rockhound, this booklet will be a helpful guide to Utah?s mining districts. The booklet is divided up into three parts: the first part provides general information on what a mining district is, how many mining districts are in Utah, types of mineral deposits found at these districts, and landownership issues. The second part includes individual mining-district discussions containing information on location, production, history, geology, mineralogy, and current/future operations. The third part includes a glossary of geologic terms and other useful resources in the appendices, such as a descriptive list of minerals found in the districts, geologic time scale, and a list of mineral resources of the mining districts.

Geological Survey of Canada, Current Research (Online) no. 2000-A10

Geological Survey of Canada, Current Research (Online) no. 2000-A10 PDF Author: L. C. Struik
Publisher: Natural Resources Canada
ISBN: 0660180022
Category :
Languages : en
Pages : 10

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Book Description
The final year of the Nechako NATMAP project to study the geology of central British Columbia was used to research information collected in the field & laboratory, and to compile & document the study results. This article includes a review of upcoming publications & other products, by type of product: maps, journal articles, conference presentations, and computer products, as well as ongoing research on petrology, palaeontology, terrane characterization, tectonics & structure, and Quaternary geology.

Geological Survey of Canada, Current Research (Online) no. 2000-A5

Geological Survey of Canada, Current Research (Online) no. 2000-A5 PDF Author: Martin De Keijzer
Publisher: Natural Resources Canada
ISBN: 0660179970
Category : Faults (Geology)
Languages : en
Pages : 12

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Book Description
A well-exposed section about 250 metres wide below the high water line of the Jennings River, Teslin Lake map area in northern British Columbia shows part of the Teslin Fault and provides an opportunity to constrain the fault's kinematic history by direct ground observations. This report describes preliminary structural observations of this section of the Teslin Fault, including the rock types involved, mylonitic & ultramylonitic structures, and deformation. Indications of two main episodes of shearing are discussed.

Critical Mineral Resources of the United States

Critical Mineral Resources of the United States PDF Author: K. J. Schulz
Publisher: Geological Survey
ISBN: 9781411339910
Category : Business & Economics
Languages : en
Pages : 868

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Book Description
As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.

Geological Survey of Canada, Current Research (Online) no. 2000-A11

Geological Survey of Canada, Current Research (Online) no. 2000-A11 PDF Author: C. D. Pint
Publisher: Natural Resources Canada
ISBN: 0660180030
Category :
Languages : en
Pages : 11

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Book Description
Describes a geologic mapping project in the area of the Nechako reservoir in central interior British Columbia. Includes description of regional geology, stratigraphic units, volcanic & plutonic rocks, and geologic structure. Evidence for two periods of deformation of Hazelton Group rocks in the study area is discussed.

Surface Temperature Reconstructions for the Last 2,000 Years

Surface Temperature Reconstructions for the Last 2,000 Years PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309102251
Category : Science
Languages : en
Pages : 160

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Book Description
In response to a request from Congress, Surface Temperature Reconstructions for the Last 2,000 Years assesses the state of scientific efforts to reconstruct surface temperature records for Earth during approximately the last 2,000 years and the implications of these efforts for our understanding of global climate change. Because widespread, reliable temperature records are available only for the last 150 years, scientists estimate temperatures in the more distant past by analyzing "proxy evidence," which includes tree rings, corals, ocean and lake sediments, cave deposits, ice cores, boreholes, and glaciers. Starting in the late 1990s, scientists began using sophisticated methods to combine proxy evidence from many different locations in an effort to estimate surface temperature changes during the last few hundred to few thousand years. This book is an important resource in helping to understand the intricacies of global climate change.