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Mid-Ocean Ridges: Hydrothermal Interactions Between the Lithosphere and Oceans, Volume 148

Christopher R. German (Editor), Jian Lin (Editor), Lindsay M. Parson (Editor)
ISBN: 978-0-87590-413-9
318 pages
January 2004, American Geophysical Union
Mid-Ocean Ridges: Hydrothermal Interactions Between the Lithosphere and Oceans, Volume 148 (0875904130) cover image

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 148.

Mid-ocean ridges play an important role in the plate-tectonic cycle of our planet. Extending some 50–60,000 km across the ocean-floor, the global mid-ocean ridge system is the site of creation of the oceanic crust and lithosphere that covers more than two thirds of the Earth's exterior. Approximately 75% of Earth's total heat flux occurs through oceanic crust, much of it at mid-ocean ridges through complex processes associated with magma solidification, heat transfer, and cooling of young oceanic lithosphere. While the majority of this heat loss occurs through conduction, approximately one third of the total heat loss at mid-ocean ridges is influenced by a convective process: hydrothermal circulation.

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Preface
Christopher R. German, Jian Lin, and Lindsay M. Parson vii

The Thermal Structure of the Oceanic Crust, Ridge-Spreading and Hydrothermal Circulation:
How Well Do We Understand Their Inter-Connections?
Christopher R. German and Jian Lin 1

Geophysical Constraints Upon the Thermal Regime of the Ocean Crust
Martin C. Sinha and Rob L. Evans 19

The Rheology and Morphology of Oceanic Lithosphere and Mid-Ocean Ridges
R. C. Searle and J. Escartfn 63

Modeling the Thermal State of the Oceanic Crust
Yongshun John Chen 95

Some Hard Rock Constraints on the Supply of Heat to Mid-Ocean Ridges
Mathilde Cannat, Joe Cann, and John Maclennnan 111

Effects of Hydrothermal Cooling and Magma Injection on Mid-Ocean Ridge
Temperature Structure, Deformation, and Axial Morphology
Mark D. Behn, Jian Lin, and Maria T. Zuber 151

Experimental Constraints on Thermal Cracking of Peridotite at Oceanic Spreading Centers
Brian deMartin, Greg Hirth, and Brian Evans 167

Submarine Lava Flow Emplacement at the East Pacific Rise 9° 50'N: Implications for
Uppermost Ocean Crust Stratigraphy and Hydrothermal Fluid Circulation
Daniel Fornari, Maurice Tivey, Hans Schouten, Michael Perfit, Dana Yoerger, Al Bradley Margo
Edwards, Rachel Haymon, Daniel Scheirer, Karen Von Damm, Timothy Shank, and Adam Soule 187

Hydrothermal Processes at Mid-Ocean Ridges: Results From Scale Analysis and Single-Pass Models
Robert P. Lowell and Leonid N. Germanovich 219

On the Global Distribution of Hydrothermal Vent Fields
Edward T. Baker and Christopher R. German 245

Ultramafic-Hosted Hydrothermal Systems at Mid-Ocean Ridges: Chemical and
Physical Controls on pH, Redox and Carbon Reduction Reactions W. E. Seyfried, Jr., D. I. Foustoukos and D. E. Allen 267

Evolution of the Hydrothermal System at East Pacific Rise 9°50'N:
Geochemical Evidence for Changes in the Upper Oceanic Crust
Karen L. Von Damm 285

Vigorous Venting and Biology at Pito Seamount, Easter Microplate
D. F. Naar, R. Hekinian, M. Segonzac, J. Francheteau, and the Pito Dive Team 305

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