Magnetic Methods and the Timing of Geological Processes

Magnetic Methods and the Timing of Geological Processes PDF Author: Luigi Jovane
Publisher: Geological Society of London
ISBN: 1862393540
Category : Science
Languages : en
Pages : 399

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Book Description
Magnetostratigraphy is best known as a technique that employs correlation among different stratigraphic sections using the magnetic directions defining geomagnetic polarity reversals as marker horizons. The ages of the polarity reversals provide common tie points among the sections, allowing accurate time correlation. Recently, studies of magnetic methods and the timing of geological processes have acquired a broader meaning, now referring to many types of magnetic measurements within a stratigraphic sequence. Many of these measurements provide correlation and age control not only for the older and younger boundaries of a polarity interval, but also within intervals. Thus, magnetostratigraphy no longer represents a dating tool based only on geomagnetic polarity reversals, but comprises a set of techniques that includes measurements of geomagnetic field parameters, environmental magnetism, rock-magnetic properties, radiometric dating and astronomically forced palaeoclimatic change recorded in sedimentary rocks, and key corrections to magnetic directions related to geodynamics, palaeocurrents, tectonics and diagenetic processes --

Magnetic Methods and the Timing of Geological Processes

Magnetic Methods and the Timing of Geological Processes PDF Author: Luigi Jovane
Publisher: Geological Society of London
ISBN: 1862393540
Category : Science
Languages : en
Pages : 399

Get Book Here

Book Description
Magnetostratigraphy is best known as a technique that employs correlation among different stratigraphic sections using the magnetic directions defining geomagnetic polarity reversals as marker horizons. The ages of the polarity reversals provide common tie points among the sections, allowing accurate time correlation. Recently, studies of magnetic methods and the timing of geological processes have acquired a broader meaning, now referring to many types of magnetic measurements within a stratigraphic sequence. Many of these measurements provide correlation and age control not only for the older and younger boundaries of a polarity interval, but also within intervals. Thus, magnetostratigraphy no longer represents a dating tool based only on geomagnetic polarity reversals, but comprises a set of techniques that includes measurements of geomagnetic field parameters, environmental magnetism, rock-magnetic properties, radiometric dating and astronomically forced palaeoclimatic change recorded in sedimentary rocks, and key corrections to magnetic directions related to geodynamics, palaeocurrents, tectonics and diagenetic processes --

Physical Geology

Physical Geology PDF Author: Steven Earle
Publisher:
ISBN: 9781537068824
Category :
Languages : en
Pages : 628

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Book Description
This is a discount Black and white version. Some images may be unclear, please see BCCampus website for the digital version.This book was born out of a 2014 meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in courses because textbooks have become too expensive for them to buy. But the real inspiration comes from a fascination for the spectacular geology of western Canada and the many decades that the author spent exploring this region along with colleagues, students, family, and friends. My goal has been to provide an accessible and comprehensive guide to the important topics of geology, richly illustrated with examples from western Canada. Although this text is intended to complement a typical first-year course in physical geology, its contents could be applied to numerous other related courses.

A Concise Geologic Time Scale

A Concise Geologic Time Scale PDF Author: J.G. Ogg
Publisher: Elsevier
ISBN: 044459468X
Category : Science
Languages : en
Pages : 243

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Book Description
A Concise Geologic Time Scale: 2016 presents a summary of Earth's history over the past 4.5 billion years, as well as a brief overview of contemporaneous events on the Moon, Mars, and Venus. The authors have been at the forefront of chronostratigraphic research and initiatives to create an international geologic time scale for many years, and the charts in this book present the most up-to-date international standard, as ratified by the International Commission on Stratigraphy and the International Union of Geological Sciences. This book is an essential reference for all geoscientists, including researchers, students, and petroleum and mining professionals. The presentation is non-technical and illustrated with numerous colour charts, maps and photographs. - Presents a summary of Earth's history over the past 4.5 billion years - Includes a brief overview of contemporaneous events on the Moon, Mars, and Venus - Includes full-color figures including charts, stratigraphic profiles, and photographs to enhance understanding of each geologic period - Correlates regional geologic stages to the standard definitions approved by the International Commission on Stratigraphy - Offers an explanation of the methods used to create the time scale - 2017 PROSE Award Finalist in Earth Science

Magnetic Stratigraphy

Magnetic Stratigraphy PDF Author: Meil D. Opdyke
Publisher: Academic Press
ISBN: 0080535720
Category : Science
Languages : en
Pages : 361

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Book Description
Magnetic Stratigraphy is the most comprehensive book written in the English language on the subject of magnetic polarity stratigraphy and time scales. This volume presents the entirety of the known geomagneticrecord, which now extends back about 300 million years. The book includes the results of current research on sea floor spreading, magnetic stratigraphy of the Pliocene and Pleistocene, and postulations on the Paleozoic. Also included are both historicalbackground and applications of magnetostratigraphy. Individual chapters on correlation are presented, using changes in magnetic properties and secular variation.Key Features* Discusses pioneering work in the use of marine sediments to investigate the Earths magnetic field* Serves as a guide for students wishing to begin studies in magnetostratigraphy* Provides a comprehensive guide to magnetic polarity stratigraphy including up-to-date geomagnetic polarity time scales* Correlates magnetic stratigraphics from marine and non-marine Cenozoic sequences* Details reversal history of the magnetic field for the last 350 million years* Discusses correlation using magnetic dipole intensity changes* Up-to-date correlation of biostratigraphy with magnetic stratigraphy through the late Jurassic

The Stratigraphic Record of Gubbio

The Stratigraphic Record of Gubbio PDF Author: Marco Menichetti
Publisher: Geological Society of America
ISBN: 0813725240
Category : Science
Languages : en
Pages : 188

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Book Description
Since the beginning of the last century, the lower Jurassic to mid-Miocene pelagic succession exposed along the valleys of the Umbria and Marche Apennines of Italy represented a fertile playground for generations of earth scientists. This GSA Special Paper provides a reappraisal of the geological and integrated stratigraphic research, which was carried out by scores of earth scientists in the gorges around the medieval city of Gubbio over the past fifty years. Following review chapters about pioneering sedimentologic, biostratigraphic, and magnetostratigraphic studies of the Gubbio sections, a series of papers presents new, original data addressing different stratigraphical, paleoenvironmental, and structural geological aspects of particular Cretaceous to Paleogene intervals, including the still much-debated K-Pg Boundary Event in the worldwide famous site of the Bottaccione Gorge, where the Alvarez theory of global mass extinction caused by a catastrophic extraterrestrial impact was born in 1980.

Rock Magnetic Cyclostratigraphy

Rock Magnetic Cyclostratigraphy PDF Author: Kenneth P. Kodama
Publisher: John Wiley & Sons
ISBN: 1118561287
Category : Science
Languages : en
Pages : 176

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Book Description
Rock magnetic cyclostratigraphy merges environmental magnetism, in which rock magnetic measurements are used to detect past environmental change, and cyclostratigraphy, in which cyclic variations of lithology or a sedimentary rock’s physical properties are related to astronomically-forced paleoclimate change. In addition to providing paleoclimate data, cyclostratigraphy can establish high-resolution chronostratigraphy for a sequence of sedimentary rocks, even at distant times in Earth’s history. This book provides an overview of concepts underlying these two techniques, recipes for the time series analysis of cyclostratigraphy, and case studies to illustrate the variety and breadth of problems addressed by rock magnetic cyclostratigraphy. New Analytical Methods in Earth and Environmental Science Because of the plethora of analytical techniques now available, and the acceleration of technological advance, many earth scientists find it difficult to know where to turn for reliable information on the latest tools at their disposal, and may lack the expertise to assess the relative strengths or limitations of a particular technique. This new series will address these difficulties by providing accessible introductions to important new techniques, lab and field protocols, suggestions for data handling and interpretation, and useful case studies. The series represents an invaluable and trusted source of information for researchers, advanced students and applied earth scientists wishing to familiarise themselves with emerging techniques in their field. All titles in this series are available in a variety of full-colour, searchable e-book formats.

250 Million Years of Earth History in Central Italy

250 Million Years of Earth History in Central Italy PDF Author: Christian Koeberl
Publisher: Geological Society of America
ISBN: 0813725429
Category : Science
Languages : en
Pages : 554

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Book Description
"The Umbria-Marche Apennines are entirely made of marine sedimentary rocks, representing a continuous record of the geotectonic evolution of an epeiric sea from the Early Triassic to the Pleistocene. The book includes reviews and original research works accomplished with the support of the Geological Observatory of Coldigioco"--

Gravity and Magnetic Exploration

Gravity and Magnetic Exploration PDF Author: William J. Hinze
Publisher: Cambridge University Press
ISBN: 0521871018
Category : Science
Languages : en
Pages : 527

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Book Description
This combination of textbook and reference manual provides a comprehensive account of gravity and magnetic methods for exploring the subsurface using surface, marine, airborne and satellite measurements. It describes key current topics and techniques, physical properties of rocks and other Earth materials, and digital data analysis methods used to process and interpret anomalies for subsurface information. Each chapter starts with an overview and concludes by listing key concepts to consolidate new learning. An accompanying website presents problem sets and interactive computer-based exercises, providing hands-on experience of processing, modeling and interpreting data. A comprehensive online suite of full-color case histories illustrates the practical utility of modern gravity and magnetic surveys. This is an ideal text for advanced undergraduate and graduate courses and reference text for research academics and professional geophysicists. It is a valuable resource for all those interested in petroleum, engineering, mineral, environmental, geological and archeological exploration of the lithosphere.

Cyclostratigraphy and Astrochronology

Cyclostratigraphy and Astrochronology PDF Author: Michael Montenari
Publisher: Academic Press
ISBN: 0128155183
Category : Science
Languages : en
Pages : 402

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Book Description
Stratigraphy and Time Scale, Volume Three in the Advances in Sequence Stratigraphy series, covers current research across many stratigraphic disciplines, providing information on the most recent developments for the geoscientific research community. This fully commissioned review publication aims to foster and convey progress in stratigraphy, including geochronology, magnetostratigraphy, lithostratigraphy, event-stratigraphy, isotope stratigraphy, astrochronology, climatostratigraphy, seismic stratigraphy, biostratigraphy, ice core chronology, cyclostratigraphy, palaeoceanography, sequence stratigraphy, and more. Updated chapters include topics such as the Cyclostratigraphy of shallow-water carbonates – limitations and opportunities, Muschelkalk ramp cycles, Orbital Control on Paleozoic Source Rock Formation, and Cyclostratigraphy in different Jurassic carbonate ramps (Iberian Basin, NE Spain). - Contains contributions from leading authorities in the field - Informs and updates on all the latest developments in the field - Aims to foster and convey progress in stratigraphy, including geochronology, magnetostratigraphy, lithostratigraphy, event-stratigraphy, and more

The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective

The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective PDF Author: McElhinny
Publisher: Academic Press
ISBN: 0080954634
Category : Science
Languages : en
Pages : 417

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Book Description
The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective