A Bouguer Gravity Anomaly Map of Africa

A Bouguer Gravity Anomaly Map of Africa PDF Author: Rolf L. Slettene
Publisher:
ISBN:
Category : Gravity anomalies
Languages : en
Pages : 38

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Book Description
A Bouguer Gravity Anomaly Map of Africa has been compiled using only terrestrial data. The map is a contoured representation of one degree x one degree mean anomaly values. Some one degree x one degree values are computed by conventional or statistical means directly from observed gravity data held at DMAAC in the DOD Gravity Library. The majority of the one degree x one degree values are predicted by geophysical-gravity correlation methods. The anomaly pattern shown on the map is discussed and evaluated with respect to regional and local tectonic and geologic patterns. The entire Bouguer anomaly map is computer generated and drawn by an electronic plotting device. (Author).

A Bouguer Gravity Anomaly Map of Africa

A Bouguer Gravity Anomaly Map of Africa PDF Author: Rolf L. Slettene
Publisher:
ISBN:
Category : Gravity anomalies
Languages : en
Pages : 38

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Book Description
A Bouguer Gravity Anomaly Map of Africa has been compiled using only terrestrial data. The map is a contoured representation of one degree x one degree mean anomaly values. Some one degree x one degree values are computed by conventional or statistical means directly from observed gravity data held at DMAAC in the DOD Gravity Library. The majority of the one degree x one degree values are predicted by geophysical-gravity correlation methods. The anomaly pattern shown on the map is discussed and evaluated with respect to regional and local tectonic and geologic patterns. The entire Bouguer anomaly map is computer generated and drawn by an electronic plotting device. (Author).

The Utility of Regional Gravity and Magnetic Anomaly Maps

The Utility of Regional Gravity and Magnetic Anomaly Maps PDF Author: William J. Hinze
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 480

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Book Description
The subjects of the papers that make up the volume vary from the preparation of national maps to examples of the many uses of regional maps. The anomalities that are discussed range in areal dimension from hundreds of kilometers to tons of meters. The majority of the papers illustrate the utility of the maps in mapping structures and lithologic variations wirhin the continenetal crust, the configuration of the crystalline basements rocks, zones of crustal weakness, distribution of extrusive and intrusive igneous rocks and the geometry of sedimentary basins. Most cases are drawn from the United States and Canada, but examples from Europe, Africa, South America and Asia are included.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 994

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The History of Geophysics in Southern Africa

The History of Geophysics in Southern Africa PDF Author: Johan H de Beer
Publisher: AFRICAN SUN MeDIA
ISBN: 192068980X
Category : Science
Languages : en
Pages : 641

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Book Description
Geophysics is a comparatively young science which only evolved as a distinct discipline during the 19th century. However, its phenomena (like earthquakes, tsunamis, volcanic eruptions and lightning) had been objects of fear, curiosity and speculation since ancient times. In this book, Johan de Beer and his research team reveal that geophysical activity in South Africa can be traced back to as early as 1488. This is a truly astonishing revelation which deserves to be firmly entrenched as part of the country?s proud history. The book also discusses the history and formation of South African geophysical institutions that made a huge and seldom acknowledged contribution to the technological development of southern Africa.

The West African Orogens and Circum-Atlantic Correlatives

The West African Orogens and Circum-Atlantic Correlatives PDF Author: R.D. Dallmeyer
Publisher: Springer Science & Business Media
ISBN: 3642841538
Category : Science
Languages : en
Pages : 846

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Book Description
In December, 1987, Project 233 of the International Geological Correlation Pro gram hosted an international conference in Nouakchott, Mauritania. Discussions were focused on the "Tectonothermal Evolution Of The West Mrican Orogens And Circum-Atlantic Terrane Linkages". A wealth of new information was pre sented during the conference, and it was apparent that the time was appropriate to prepare a systematic volume dealing with the geology of northwest Mrica. The present volume is an outgrowth of this conference, but is not merely a compilation of the papers presented in Nouakchott. Instead, it represents a coordinated vol ume designed to present a balanced, comprehensive view of our present under standing of West Mrican geology and potential correlations in other Circum-At lantic Paleozoic orogens. We sincerely appreciate the efforts of all the reviewers whose comments have greatly helped to improve the quality of this volume. We also thank the various contributors for their diligence and perseverance in manuscript preparation. The calibre of the present volume is a reflection of their labor. Athens/Marseille, Autumn 1990 R. D. DALLMEYER J. P. LECORCHE Contents Chapter 1 Introduction . . . . . . . . . . . . . . . 3 R. D. DALLMEYER and J. P. LECORCHE Chapter 2 Geophysics and the Crustal structure of West Africa 9 J. ROUSSEL and A. LESQUER Chapter 3 Crystalline Basement of the West African Craton . . . . . . . . . . . . .. . . 31 .

Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 654

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Processes of Continental Rifting

Processes of Continental Rifting PDF Author: P. Morgan
Publisher: Elsevier
ISBN: 1483289826
Category : Science
Languages : en
Pages : 685

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Book Description
Selected papers from the Lunar and Planetary Institute Topical Conference, St. Helena, CA, USA, 3-5 Dec. 1981

Geology of North Africa and the Mediterranean: Sedimentary Basins and Georesources

Geology of North Africa and the Mediterranean: Sedimentary Basins and Georesources PDF Author: Sami Khomsi
Publisher: Springer Nature
ISBN: 3031187474
Category : Science
Languages : en
Pages : 294

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Book Description
This book summarizes the links between the evolution of sedimentary basins of Northern Africa and Peri-Mediterranean in different tectonic settings and the distribution of georesources in those basins. Georesources include fossil energy, geothermal energy, deep aquifers, minerals and deposits. This book also provides key information for energy resources in these important areas. The book is in part a compilation of selected papers from Atlas Georesources International Congress, Hammamet, Tunisia, (AGIC 2017) which were extended after the congress in addition to other contributions from geoscientists based at some universities and companies from the region. It is organized in a set of research studies focusing on the architecture, geodynamic evolution and modeling of sedimentary basins in the Middle East, North Africa and the Mediterranean domain. Future developments in the exploration for water, energy and other georesources are very important in these regions. In this context, this book constitutes an important reference for a wide range of geoscientists and companies as it defines the distribution and potentialities of these resources.

Monthly Catalogue, United States Public Documents

Monthly Catalogue, United States Public Documents PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1690

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 760

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Book Description