Gorda Ridge

1. Front Matter

   Pages i-xv

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2. Introduction

   1. Front Matter

      Pages 1-1

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   2. Geology and Geophysics of Gorda Ridge

      • Martin R. Fisk, Katherine J. Howard

      Pages 3-17

3. Gorda Ridge Mineral Potential

   1. Front Matter

      Pages 19-19

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   2. Hydrography and Geochemistry of Northern Gorda Ridge

      • Robert W. Collier, Edward T. Baker

      Pages 21-29

   3. Geology of the GR14 Site on Northern Gorda Ridge

      • David A. Clague, Peter A. Rona

      Pages 31-50

   4. Multistage Hydrothermal Systems in the Blanco Fracture Zone

      • Roger Hart, Jochen Hoefs, Douglas Pyle

      Pages 51-75

   5. Distribution and Composition of Massive Sulfide Deposits at Escanaba Trough, Southern Gorda Ridge

      • Janet L. Morton, Randolph A. Koski, William R. Normark, Stephanie L. Ross

      Pages 77-92

   6. Submersible Observations in Escanaba Trough, Southern Gorda Ridge

      • Mark L. Holmes, Robert A. Zierenberg

      Pages 93-115

   7. A Comparison of Sulfide Deposits from Modern Sediment-Covered Spreading Axes with Besshi-Type Deposits of Japan

      • Randolph A. Koski

      Pages 117-130

   8. Deposition of Metalliferous Sediment Beneath a Brine Pool in the Atlantis II Deep, Red Sea

      • Robert A. Zierenberg

      Pages 131-142

   9. Economic Perspective on Development of Potential Gorda Ridge Sulfide Deposits

      • Joseph L. Ritchey, Nicholas Wetzel, Scott A. Stebbins, Benjamin W. Haynes

      Pages 143-152

4. Technology

   1. Front Matter

      Pages 153-153

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   2. Hydrothermal Plume Prospecting: Hydrographic and Geochemical Techniques

      • Edward T. Baker

      Pages 155-167

   3. Acoustic Techniques for Imaging the Seafloor

      • Christopher G. Fox

      Pages 169-177

   4. Technologies for Geophysical Exploration on the Ocean Bottom

      • John A. Hildebrand

      Pages 179-189

   5. Seafloor Electromagnetic Exploration Methods

      • Alan D. Chave

      Pages 191-200

   6. An Electric Drill for Deep-Sea Coring

      • Patrick J. C. Ryall

      Pages 201-210

   7. Mining Technology for Gorda Ridge Sulfides

      • Michael J. Cruickshank

      Pages 211-221

5. Benthic Ecology

   1. Front Matter

      Pages 223-223

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Gorda Ridge presents a primarily technical summary of recent advances in seafloor research related to mineral exploration of the only seafloor spreading center within the United States' Exclusive Economic Zone (EEZ). Spreading centers are known to be the locus of hydrothermal activity and to host mineral deposits of hydrothermal origin. The book includes sections on the results of mineral exploration on Gorda Ridge, the newest technologies for mineral exploration and sampling on the seafloor, and the evolving field of hydrothermal vent biology and ecology. What makes the book unique is that it is: 1) a site book, 2) a truly multidisciplinary summation of the state of the art in complementary areas of deep ocean geology and biology, and 3) a marker in the evolution of federal-state relations concerning ocean development.

• Fauna
• Ocean
• Pacific Ocean
• development
• ecology
• mineral resources

• Oregon Department of Geology and Mineral Industries, Portland, USA

  Gregory R. McMurray

• Dames & Moore, Portland, USA

  Gregory R. McMurray

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