Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada

Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada PDF Author: Paul Kibler Sims
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 20

Get Book

Book Description

Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada

Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada PDF Author: Paul Kibler Sims
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 20

Get Book

Book Description


Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada

Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada PDF Author: Paul Kibler Sims
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 12

Get Book

Book Description


Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada

Archean and Early Proterozoic Tectonic Framework of North-Central United States and Adjacent Canada PDF Author: Paul Kibler Sims
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 12

Get Book

Book Description


U.S. Geological Survey Bulletin

U.S. Geological Survey Bulletin PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 372

Get Book

Book Description


U.S. Geological Survey Bulletin

U.S. Geological Survey Bulletin PDF Author: Paul Kibler Sims
Publisher:
ISBN:
Category : Faults (Geology)
Languages : en
Pages : 272

Get Book

Book Description
The Early Proterozoic Michigamme Formation of northern Michigan was deposited in the southeastern part of the Animikie basin. The formation conformably overlies the Goodrich Quartzite and comprises three widespread members a lower member of thin-bedded shale, siltstone, and sandstone; the Bijiki Iron-formation Member; and an upper member of tur- biditic graywacke, siltstone, and mudstone and a few local members. The Goodrich Quartzite is interpreted as having been deposited in a tidally influenced shallow marine environ- ment. The lower member of the Michigamme is interpreted as having been deposited in a tidally influenced environment, the iron-formation member as having been deposited below wave base in somewhat deeper water, and the upper member as having been deposited in still deeper water with turbidity currents being a major depositional mechanism. Several lines of evidence including paleocurrents, paleo- geographic setting, and neodymium isotopes suggest that the graywacke of the southern part of the outcrop area was derived from the south (Early Proterozoic Wisconsin magmatic terranes, Archean miniplates, and older Early Proterozoic sedimentary units formed on the continental margin), and that the graywacke in the northern area was derived from an Archean terrane to the north. The tectonic model that best fits the available data is a northward-migrating foreland basin.

Monthly Catalogue, United States Public Documents

Monthly Catalogue, United States Public Documents PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1094

Get Book

Book Description


Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1484

Get Book

Book Description


New Publications of the U.S. Geological Survey

New Publications of the U.S. Geological Survey PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 156

Get Book

Book Description


High-strain Zones

High-strain Zones PDF Author: Geological Society of London
Publisher: Geological Society of London
ISBN: 9781862391789
Category : Nature
Languages : en
Pages : 474

Get Book

Book Description
This collection of research and review papers addresses the question of structural evolution during deformation to high strains and the physical properties of rocks that have been affected by high-strain zones. The discussions range from natural examples at outcrop to microscopic studies. They include experiments and numerical models based on the active processes in high-strain zones as well as studies on the physical properties of highly strained rocks in the field and laboratory. Specific questions addressed include magnetotelluric imaging of faults, magnetic fabrics, fabric development, seismic properties of highly strained rocks, change of rheology with strain, influence of melt on the localization of deformation, the relationship between deformation and metamorphism as well as new methods in the analysis of deformation. The book is aimed at an interdisciplinary group of readers interested in the effects of high strain in rocks.

New Publications of the Geological Survey

New Publications of the Geological Survey PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 428

Get Book

Book Description