Ophiolites and oceanic crust : new insights from field studies and the ocean drilling program / edited by Yildirim Dilek ... [and others].

Format:

Book

Conference/Event

Contributor:

Dilek, Yildirim, 1957-

Conference Name:

Geological Society of America Penrose Conference (1998 : Marshall, Calif.)

Series:

Special papers (Geological Society of America) ; 349.

Special paper ; 349

Language:

English

Subjects (All):

Ophiolites.

Ocean bottom.

Earth (Planet)--Crust.

Earth (Planet).

Physical Description:

viii, 552 pages : illustrations, maps ; 28 cm.

Place of Publication:

Boulder, Colo. : Geological Society of America, 2000.

Contents:

Section I. Ophiolites, Oceanic Crust, and Global Tectonics: Introduction 1

1. Tethyan ophiolites, mantle convection, and tectonic "historical contingency": A resolution of the "ophiolite conundrum" / Eldridge M. Moores, Louise H. Kellogg, Yildirim Dilek 3

2. Evidence for subduction-related contamination of the mantle beneath the southern Chile Ridge: Implications for ambiguous ophiolite compositions / Marnie E. Sturm, Emily M. Klein, Jill L. Karsten, Jeffrey A. Karson 13

3. The ophiolite-oceanic lithosphere analogue: New insights from the Northern Apennines (Italy) / Elisabetta Rampone, Giovanni B. Piccardo 21

4. Significance of serpentine mud volcanism in convergent margins / Patricia Fryer, John P. Lockwood, Nathan Becker, Steven Phipps, Clifford S. Todd 35

5. Spatial and temporal relationships between ophiolites and their metamorphic soles: A test of models of forearc ophiolite genesis / John Wakabayashi, Yildirim Dilek 53

Section II. Oceanic Lower Crust and Upper Mantle: Introduction 65

6. Large mantle upwellings and related variations in crustal thickness in the Oman ophiolite / Adolphe Nicolas, Francoise Boudier 67

7. Lower oceanic crust formed at an ultra-slow-spreading ridge: Ocean Drilling Program Hole 735B, Southwest Indian Ridge / Paul T. Robinson, Henry J.B. Dick, James H. Natland, The ODP Leg 176 Shipboard Party 75

8. Magmatic and tectonic controls on the evolution of oceanic magma chambers at slow-spreading ridges: Perspectives from ophiolitic and continental layered intrusions / Peter Thy, Yildirim Dilek 87

9. Syntexis and the genesis of lower oceanic crust / Jean H. Bedard, Rejean Hebert, Alain Berclaz, Veronika Varfalvy 105

10. Can downward flow of dense cumulate slurry through mushy upper gabbros produce lower gabbros at a fast-spreading center? / W. Roger Buck 121

11. Evolution of gabbroic rocks of the Northern Apennine ophiolites (Italy): Comparison with the lower oceanic crust from modern slow-spreading ridges / Riccardo Tribuzio, Massimo Tiepolo, Riccardo Vannucci 129

12. New insights concerning the influence of water during the formation of podiform chromitite / Stephen J. Edwards, Julian A. Pearce, Jonathan Freeman 139

13. Gauging stress from mantle chromitite pods in the Oman ophiolite / Benjamin Holtzman 149

Section III. Structure and Physical Properties of Upper Oceanic Crust: Introduction 159

14. Dependence of crustal accretion and ridge-axis topography on spreading rate, mantle temperature, and hydrothermal cooling / Yongshun John Chen 161

15. Comparison of volcanic construction in the Troodos ophiolite and oceanic crust using paleomagnetic inclinations from Cyprus Crustal Study Project (CCSP) CY-1 and CY-1A and Ocean Drilling Program (ODP) 504B drill cores / Hans Schouten, Charles R. Denham 181

16. On the boundary between seismic layers 2 and 3: A stress change? / Philippe A. Pezard 195

17. Characterization of the upper oceanic crust using high-resolution seismic amplitude modeling / Yue-Feng Sun, David Goldberg 203

Section IV. Hydrothermal Processes: Introduction 211

18. A synthesis of geological and geochemical investigations of the TAG hydrothermal field: Insights into fluid-flow and mixing processes in a hydrothermal system / Susan E. Humphris, Margaret K. Tivey 213

19. Volatiles in mid-ocean ridge environments / Deborah S. Kelley, Gretchen L. Fruh-Green 237

20. Lower-crustal cracking front at fast-spreading ridges: Evidence from the East Pacific Rise and the Oman ophiolite / Craig E. Manning, Christopher J. MacLeod, Patricia E. Weston 261

21. Hydrothermal alteration and fluid fluxes in ophiolites and oceanic crust / Jeffrey C. Alt, Damon A.H. Teagle 273

22. Hydrothermal alteration patterns in supra-subduction zone ophiolites / Kathryn M. Gillis, Neil R. Banerjee 283

Section V. Pacific Rim Ophiolites: Introduction 299

23. Macquarie Island: Its geology, structural history, and the timing and tectonic setting of its N-MORB to E-MORB magmatism / Rick Varne, Anthony V. Brown, Trevor Falloon 301

24. The Timor ophiolite, Indonesia: Model or myth? / Ron Harris, Timothy Long 321

25. Proterozoic-early Paleozoic ophiolites of the Andean basement of southern South America / Victor A. Ramos, Monica Escayola, Diana I. Mutti, Graciela I. Vujovich 331

26. Prospecting for ophiolites along the California continental margin / Robert G. Coleman 351

27. Mesozoic assimilation of oceanic crust and island arc into the North American continental margin in California and Nevada: Insights from geophysical data / Nicola J. Godfrey, Yildirim Dilek 365

28. Tectonostratigraphic significance of sedimentary strata occurring within and above the Coast Range ophiolite (California Coast Ranges) and the Josephine ophiolite (Klamath Mountains), northwestern California / Emile A. Pessagno, Jr., Donna M. Hull, Clifford A. Hopson 383

29. Models for origin and emplacement of Jurassic ophiolites of northern California / Raymond V. Ingersoll 395

30. Geology and geochemistry of the ophiolitic Trinity terrane, California: Evidence of middle Paleozoic depleted supra-subduction zone magmatism in a proto-arc setting / Rodney V. Metcalf, E. Timothy Wallin, Keith R. Willse, Edward R. Muller 403

31. Sulfide minerals as an indicator for petrogenesis and serpentinization of peridotites: An example from the Hayama-Mineoka belt, central Japan / Hiroshi Sato, Yujiro Ogawa 419

Section VI. Ophiolites from the Iapetus, Rheic-Pleionic, Neotethyan, and Indian Oceans: Introduction 431

32. Contrasting mantle sequences exposed in the Lewis Hills massif: Evidence for the early, arc-related history of the Bay of Islands ophiolite / Gunter Suhr, Stephen John Edwards 433

33. Petrology, tectonics, and hydrothermal alteration of a fossil backarc oceanic crust: Solund-Stavfjord ophiolite complex of the western Norwegian Caledonides

A review / Harald Furnes, Kjell Petter Skjerlie, Yildirim Dilek 443

34. Early Devonian boninites from the Magnitogorsk arc, southern Urals (Russia): Implications for early development of a collisional orogen / Piera Spadea, Jane H. Scarrow 461

35. Constraints on the formation and emplacement age of western Greek ophiolites (Vourinos, Pindos, and Othris) inferred from deformation structures in peridotites / Annie Rassios, Alan G. Smith 473

36. Petrology and geochemistry of the Shahr-Babak ophiolite, central Iran / A. Mohamad Ghazi, A.A. Hassanipak 485

37. Aswad massif (United Arab Emirates): Archetype of the Oman-UAE ophiolite belt / Adolphe Nicolas, Francoise Boudier, K. Michibayashi, L. Gerbert-Gaillard 499

38. A new structural profile along the Muscat-Ibra transect, Oman: Implications for emplacement of the Samail ophiolite / David R. Gray, Robert T. Gregory, John McL. Miller 513

39. Formation and evolution of the western Indian Ocean as evidenced by the Masirah ophiolite: A review / Tjerk Peters 525.

Notes:

Papers from the Penrose Conference on Ophiolites and Oceanic Crust held September 13-17, 1998 in Marshall, California.

Includes bibliographical references and index.

ISBN:

0813723493

OCLC:

43885801