Hydrothermal Processes at Seafloor Spreading Centers

Hydrothermal Processes at Seafloor Spreading Centers PDF Author: Peter A. Rona
Publisher: Springer Science & Business Media
ISBN: 1489904026
Category : Technology & Engineering
Languages : en
Pages : 802

Get Book Here

Book Description
During the past ten years, evidence has developed to indicate that seawater convects through oceanic crust driven by heat derived from creation of lithosphere at the Earth-encircling oceanic ridge-rift system of seafloor spreading centers. This has stimulated multiple lines of research with profound implications for the earth and life sciences. The lines of research comprise the role of hydrothermal convection at seafloor spreading centers in the Earth's thermal regime by cooling of newly formed litho sphere (oceanic crust and upper mantle); in global geochemical cycles and mass balances of certain elements by chemical exchange between circulating seawater and basaltic rocks of oceanic crust; in the concentration of metallic mineral deposits by ore-forming processes; and in adaptation of biological communities based on a previously unrecognized form of chemosynthesis. The first work shop devoted to interdisciplinary consideration of this field was organized by a committee consisting of the co-editors of this volume under the auspices of a NATO Advanced Research Institute (ARI) held 5-8 April 1982 at the Department of Earth Sciences of Cambridge University in England. This volume is a product of that workshop. The papers were written by members of a pioneering research community of marine geologists, geophysicists, geochemists and biologists whose work is at the stage of initial description and interpretation of hydrothermal and associated phenomena at seafloor spreading centers.

Hydrothermal Processes at Seafloor Spreading Centers

Hydrothermal Processes at Seafloor Spreading Centers PDF Author: Peter A. Rona
Publisher: Springer Science & Business Media
ISBN: 1489904026
Category : Technology & Engineering
Languages : en
Pages : 802

Get Book Here

Book Description
During the past ten years, evidence has developed to indicate that seawater convects through oceanic crust driven by heat derived from creation of lithosphere at the Earth-encircling oceanic ridge-rift system of seafloor spreading centers. This has stimulated multiple lines of research with profound implications for the earth and life sciences. The lines of research comprise the role of hydrothermal convection at seafloor spreading centers in the Earth's thermal regime by cooling of newly formed litho sphere (oceanic crust and upper mantle); in global geochemical cycles and mass balances of certain elements by chemical exchange between circulating seawater and basaltic rocks of oceanic crust; in the concentration of metallic mineral deposits by ore-forming processes; and in adaptation of biological communities based on a previously unrecognized form of chemosynthesis. The first work shop devoted to interdisciplinary consideration of this field was organized by a committee consisting of the co-editors of this volume under the auspices of a NATO Advanced Research Institute (ARI) held 5-8 April 1982 at the Department of Earth Sciences of Cambridge University in England. This volume is a product of that workshop. The papers were written by members of a pioneering research community of marine geologists, geophysicists, geochemists and biologists whose work is at the stage of initial description and interpretation of hydrothermal and associated phenomena at seafloor spreading centers.

Subseafloor Biosphere Linked to Hydrothermal Systems

Subseafloor Biosphere Linked to Hydrothermal Systems PDF Author: Jun-ichiro Ishibashi
Publisher: Springer
ISBN: 4431548653
Category : Science
Languages : en
Pages : 651

Get Book Here

Book Description
This book is the comprehensive volume of the TAIGA (“a great river ” in Japanese) project. Supported by the Japanese government, the project examined the hypothesis that the subseafloor fluid advection system (subseafloor TAIGA) can be categorized into four types, TAIGAs of sulfur, hydrogen, carbon (methane), and iron, according to the most dominant reducing substance, and the chemolithoautotrophic bacteria/archaea that are inextricably associated with respective types of TAIGAs which are strongly affected by their geological background such as surrounding host rocks and tectonic settings. Sub-seafloor ecosystems are sustained by hydrothermal circulation or TAIGA that carry chemical energy to the chemosynthetic microbes living in an extreme environment. The results of the project have been summarized comprehensively in 50 chapters, and this book provides an overall introduction and relevant topics on the mid-ocean ridge system of the Indian Ocean and on the arc-backarc systems of the Southern Mariana Trough and Okinawa Trough.

Marine Hydrothermal Systems and the Origin of Life

Marine Hydrothermal Systems and the Origin of Life PDF Author: N.G. Holm
Publisher: Springer Science & Business Media
ISBN: 9401127417
Category : Science
Languages : en
Pages : 248

Get Book Here

Book Description
Research of the origins of life in connection with a marine environment started at the end of the seventies, when the `black smokers' in the Pacific were discovered and the Red Sea deep hydrothermal brines were found to be a fruitful environment for abiotic synthesis of life precursors. For a while this research was categorised under the heading `chemistry', but in less than a decade the topic became fully integrated into the science of 'oceanography'. The Scientific Committee on Oceanographic Research (SCOR) initiated Working Group 91: Chemical Evolution and Origin of Life in Marine Hydrothermal Systems'. This volume contains the final report of this working group.

Hydrothermal Mineral Deposits

Hydrothermal Mineral Deposits PDF Author: Franco Pirajno
Publisher: Springer Science & Business Media
ISBN: 3642756719
Category : Science
Languages : en
Pages : 721

Get Book Here

Book Description
This book is intended primarily for exploration geologists and post graduate students attending specialist courses in mineral exploration. Exploration geologists are engaged not only in the search for new mineral deposits, but also in the extension and re-assessment of existing ones. To succeed in these tasks, the exploration geologist is required to be a "generalist" of the Earth sciences rather than a specialist. The exploration geologist needs to be familiar with most aspects of the geology of ore deposits, and detailed knowledge as well as experience play an all important role in the successful exploration for mineral commodities. In order to achieve this, it is essential that the exploration geologist be up to date with the latest developments in the evolution of concepts and ideas in the Earth sciences. This is no easy task, as thousands of publications appear every year in an ever increasing number of journals, periodicals and books. For this reason it is also difficult, at times, to locate appropriate references on a particular mineral deposit type, although this problem is alleviated by the existence of large bibliographic data bases of geological records, abstracts and papers on computers. During my teaching to explorationists and, indeed, during my years of work as an explorationist, the necessity of having a text dealing with the fundamental aspects of hydrothermal mineral deposits has always been compelling. Metallic mineral deposits can be categorised into three great families, namely: (I) magmatic; (2) sedimentary and residual; (3) hydrothermal.

Backarc Basins

Backarc Basins PDF Author: Brian Taylor
Publisher: Springer Science & Business Media
ISBN: 9780306449376
Category : Science
Languages : en
Pages : 560

Get Book Here

Book Description
Experts in the field offer the first comprehensive review of the tectonics and magmatism of backarc basins, covering their initial rift stage to mature spreading. Complete with numerous illustrations, each of the twelve chapters focuses on a young, active backarc basin of the circum-Pacific-where volcano-tectonic processes are best studied because of their activity. Key themes in this volume include volcano-tectonics setting; cause and location; rift magmas; and hydrothermal activity. Researchers also present models of the dynamic processes occurring in backarc basins.

Hydrothermal Processes and Mineral Systems

Hydrothermal Processes and Mineral Systems PDF Author: Franco Pirajno
Publisher: Springer Science & Business Media
ISBN: 140208613X
Category : Science
Languages : en
Pages : 1250

Get Book Here

Book Description
Hydrothermal processes on Earth have played an important role in the evolution of our planet. These processes link the lithosphere, hydrosphere and biosphere in continuously evolving dynamic systems. Terrestrial hydrothermal processes have been active since water condensed to form the hydrosphere, most probably from about 4.4 Ga. The circulation of hot aqueous solution (hydrothermal systems) at, and below, the Earth’s surface is ultimately driven by magmatic heat. This book presents an in-depth review of hydrothermal proceses and systems that form beneath the oceans and in intracontinental rifts, continental margins and magmatic arcs. The interaction of hydrothermal fluids with rockwalls, the hydrophere and the biophere, together with changes in their composition through time and space, contribute to the formation of a wide range of mineral deposit types and associated wallrock alteration. On Earth, sites of hydrothermal activity support varied ecosystems based on a range of chemotrophic microorganisms both at surface and in the subsurface. This book also provides an overview of hydrothermal systems associated with meteorite impacts and explores the possibility that hydrothermal processes operate on other terrestrial planets, such as Mars, or satellites of the outer planets such as Titan and Europa. Possible analogues of extraterrestrial putative hydrothermal processes pose the intriguing question of whether primitive life, as we know it, may exist or existed in these planetary bodies. Audience: This volume will be of interest to scientists and researchers in geosciences and life sciences departments, as well as to professionals and scientists involved in mining and mineral exploration.

Publications Abstracts

Publications Abstracts PDF Author: Environmental Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Environmental policy
Languages : en
Pages : 224

Get Book Here

Book Description


U.S. Geological Survey Bulletin

U.S. Geological Survey Bulletin PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 120

Get Book Here

Book Description


Subsea Mineral Resources

Subsea Mineral Resources PDF Author: Vincent Ellis McKelvey
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 128

Get Book Here

Book Description


Legal and Scientific Aspects of Continental Shelf Limits

Legal and Scientific Aspects of Continental Shelf Limits PDF Author: Myron H. Nordquist
Publisher: BRILL
ISBN: 9047413539
Category : Law
Languages : en
Pages : 483

Get Book Here

Book Description
The legal and scientific aspects of continental shelf limits are of growing importance to those concerned with the international law of the sea. It is rare that the current thinking of both leading lawyers and scientists are brought together in one volume. Among the topics raised in this volume are: geomorphology and geology; ridge issues; Commission on the Limits of the Continental Shelf; shelf resources and current issues, such as the outer limit of the continental shelf in the Arctic Ocean, evaluating U.S. data holdings relevant to the definition of continental shelf limits, delimiting China’s continental shelves and future directions of the International Seabed Authority. Lastly, the Under Secretary General for Legal Affairs, United Nations, H.E. Hans Corell, provides a strategic overview on the challenges in implementing international ocean governance. Another unique feature of the volume is that a CD is placed in the back cover containing visual materials not included in the printed text.