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DSDP Volume LXIX Table of Contents

doi:10.2973/dsdp.proc.69.1983
Publication date: May 2007

Preliminary Pages

Part I: Introduction and Site Chapters

1. Geothermal Phenomena at the Costa Rica Rift: Background and Objectives for Drilling at Deep Sea Drilling Project Sites 501, 504, and 505

M.G. Langseth, J.R. Cann, J.H. Natland, and M. Hobart
doi:10.2973/dsdp.proc.69.101.1983

2. Sites 501 and 504: Sediments and Ocean Crust in an Area of High Heat Flow on the Southern Flank of the Costa Rica Rift

Shipboard Scientific Parties of Leg 68 (Site 501), Leg 69, and Leg 70
doi:10.2973/dsdp.proc.69.102.1983

3. Site 505: Sediments and Ocean Crust in an Area of Low Heat Flow South of the Costa Rica Rift

Shipboard Scientific Party
doi:10.2973/dsdp.proc.69.103.1983

Part II: Geophysical Studies

4. Gloria Survey over Costa Rica Rift: Sites 501, 504, and 505

R.C. Searle
doi:10.2973/dsdp.proc.69.104.1983

5. Deep Crustal Geothermal Measurements, Hole 504B, Deep Sea Drilling Project Legs 69 and 70

K. Becker, M.G. Langseth, and R.P. Von Herzen
doi:10.2973/dsdp.proc.69.105.1983

6. In Situ Large-Scale Electrical Resistivity of Ocean Crust, Hole 504B

R.P. Von Herzen, T.J.G. Francis, and K. Becker
doi:10.2973/dsdp.proc.69.106.1983

7. Permeability, Underpressures, and Convection in the Oceanic Crust at Deep Sea Drilling Project Hole 504B

M.D. Zoback and R.N. Anderson
doi:10.2973/dsdp.proc.69.107.1983

8. The Implications of Fracture and Void Distribution from Bore-Hole Televiewer Imagery for the Seismic Velocity of the Upper Oceanic Crust at Deep Sea Drilling Project Holes 501 and 504B

R.N. Anderson and M.D. Zoback
doi:10.2973/dsdp.proc.69.108.1983

9. First Measurements of the Magnetic Field within the Ocean Crust: Deep Sea Drilling Project Legs 68 and 69

V.N. Ponomarev and V.L. Nekhoroshkov
doi:10.2973/dsdp.proc.69.109.1983

10. Downhole Logging at Deep Sea Drilling Project Sites 501, 504, and 505, near the Costa Rica Rift

J.R. Cann and R.P. Von Herzen
doi:10.2973/dsdp.proc.69.110.1983

11. The Oblique Seismic Experiment on Deep Sea Drilling Project Leg 70

R.A. Stephen
doi:10.2973/dsdp.proc.69.111.1983

Part III: Sedimentology and Paleontology

12. Biostratigraphic and Paleoceanographic Events in the Eastern Equatorial Pacific: Results of Deep Sea Drilling Project Leg 69

C.A. Sancetta
doi:10.2973/dsdp.proc.69.112.1983

13. Upper Cenozoic Silicoflagellates from offshore Ecuador, Deep Sea Drilling Project Site 504

D. Bukry
doi:10.2973/dsdp.proc.69.113.1983

14. Sedimentary and Diagenetic Processes in the Central Panama Basin Since the Late Miocene: The Lithology and Composition of Sediments from Deep Sea Drilling Project Sites 504 and 505

H. Beiersdorf and J.H. Natland
doi:10.2973/dsdp.proc.69.114.1983

15. Mineralogy of Sediments Encountered during Deep Sea Drilling Project Leg 69 (Costa Rica Rift, Panama Basin), as Determined by X-Ray Diffraction

H. Beiersdorf and H. Rösch
doi:10.2973/dsdp.proc.69.115.1983

16. Petrology and Geochemistry of Silicified Upper Miocene Chalk, Costa Rica Rift, Deep Sea Drilling Project Leg 69

J.R. Hein, C. Sancetta, and L.A. Morgenson
doi:10.2973/dsdp.proc.69.116.1983

17. Oxygen-Isotope Composition of Secondary Silica Phases, Costa Rica Rift, Deep Sea Drilling Project Leg 69

J.R. Hein and H.-W. Yeh
doi:10.2973/dsdp.proc.69.117.1983

18. Stable Isotope Record of Hole 504 Sediments: High Resolution Record of the Pleistocene

N.J. Shackleton and M.A. Hall
doi:10.2973/dsdp.proc.69.118.1983

19. Organic Matter in Deep Sea Drilling Project Site 504 and 505 Sediments Studied by a Thermal Analysis-Gas Chromatography Technique

J.K. Whelan and J.M. Hunt
doi:10.2973/dsdp.proc.69.119.1983

20. Rhyolitic and Basaltic Ashes from the Galapagos Mounds Area, Leg 70, Deep Sea Drilling Project

H.-U. Schmincke
doi:10.2973/dsdp.proc.69.120.1983

Part IV: Pore-Fluid and Formation Fluid Geochemistry

21. Elemental and Stable-Isotope Composition of Pore Waters and Carbonate Sediments from Deep Sea Drilling Project Sites 501/504 and 505

M.J. Mottl, J.R. Lawrence, and L.D. Keigwin
doi:10.2973/dsdp.proc.69.121.1983

22. Chemistry of Waters Sampled from Basaltic Basement in Deep Sea Drilling Project Holes 501, 504B, and 505B

M.J. Mottl, R.N. Anderson, W.J. Jenkins, and J.R. Lawrence
doi:10.2973/dsdp.proc.69.122.1983

23. Uranium Results from Hole 504B Water Samples

M.P. Bacon
doi:10.2973/dsdp.proc.69.123.1983

24. Alkali and Sr Isotope Geochemistry of Waters Collected from Basaltic Basement, Deep Sea Drilling Project Hole 504B, Costa Rica Rift

S.R. Hart and M.J. Mottl
doi:10.2973/dsdp.proc.69.124.1983

Part V: Basalt Alteration

25. Alteration in Site 501 (Leg 68) and Site 504 (Leg 69) Basalts: Preliminary Results

Y. Noack, R. Emmermann, and H.-W. Hubberten
doi:10.2973/dsdp.proc.69.125.1983

26. Alteration Processes in Layer 2 Basalts from Deep Sea Drilling Project Hole 504B, Costa Rica Rift

J. Honnorez, C. Laverne, H.-W. Hubberten, R. Emmermann, and K. Muehlenbachs
doi:10.2973/dsdp.proc.69.126.1983

27. Occurrence and Origin of Anhydrite from Deep Sea Drilling Project Leg 70, Hole 504B, Costa Rica Rift

J.C. Alt, J. Honnorez, H.-W. Hubberten, and E. Saltzman
doi:10.2973/dsdp.proc.69.127.1983

28. Chemistry of Alteration Minerals from Deep Sea Drilling Project Sites 501, 504, and 505

A.C. Adamson
doi:10.2973/dsdp.proc.69.128.1983

29. Alteration Zones near Veins in Basalts from Deep Sea Drilling Project Sites 501/504 and 505, Costa Rica Rift

N.N. Pertsev and V.A. Boronikhin
doi:10.2973/dsdp.proc.69.129.1983

30. Secondary Minerals in Basalt from the Costa Rica Rift, Holes 501 and 504B, Deep Sea Drilling Project Legs 68, 69, and 70

V.B. Kurnosov, I.V. Kholodkevich, V.M. Chubarov, and A.Ya. Shevchenko
doi:10.2973/dsdp.proc.69.130.1983

31. A Mössbauer Study of Saponite in Layer 2 Basalt, Deep Sea Drilling Project Leg 69

A.J. Andrews, W.A. Dollase, and M.E. Fleet
doi:10.2973/dsdp.proc.69.131.1983

32. Secondary K-Feldspar in Basalts at Deep Sea Drilling Project Hole 504B and the Problem of K-Feldspathization in Oceanic Basalts

N.N. Pertsev and V.A. Boronikhin
doi:10.2973/dsdp.proc.69.132.1983

33. Occurrence of Melanite and Aegirine-Augite in Deep Sea Drilling Project Hole 504B

C. Laverne
doi:10.2973/dsdp.proc.69.133.1983

34. Sulfide Petrology of Basalts from Deep Sea Drilling Project Holes 504B and 505B

V.V. Distler, N.N. Pertsev, and V.A. Boronikhin
doi:10.2973/dsdp.proc.69.134.1983

35. Sulfur-Isotope Composition of Hydrothermal Sulfides from Hole 504B, Deep Sea Drilling Project Leg 70, Costa Rica Rift

V.M. Belyi, A.A. Migdisov, N.V. Barskaya, and V.A. Grinenko
doi:10.2973/dsdp.proc.69.135.1983

36. Sulfur Content and Sulfur Isotopes of Basalts from the Costa Rica Rift (Hole 504B, Deep Sea Drilling Project Legs 69 and 70)

H.-W. Hubberten
doi:10.2973/dsdp.proc.69.136.1983

37. Oxygen- and Hydrogen-Isotope Composition of Some Basalts from Deep Sea Drilling Project Hole 504B, Costa Rica Rift, Legs 69 and 70

T.J. Barrett and H. Friedrichsen
doi:10.2973/dsdp.proc.69.137.1983

38. Strontium- and Lead-Isotope Composition of Some Basalts from Deep Sea Drilling Project Hole 504B, Costa Rica Rift, Legs 69 and 70

T.J. Barrett
doi:10.2973/dsdp.proc.69.138.1983

39. Inert-Gas Contents of Altered Samples from Deep Sea Drilling Project Holes 501, 504B, and 505B, Costa Rica Rift

D.J. Terrell and J.G. Mitchell
doi:10.2973/dsdp.proc.69.139.1983

Part VI: Physical and Magnetic Properties of Sediments and Basalts

40. Physical Properties of Sediments of the Costa Rica Rift, Deep Sea Drilling Project Sites 504 and 505

R.H. Wilkens and M.G. Langseth
doi:10.2973/dsdp.proc.69.140.1983

41. Shipboard Physical-Properties Measurements of Basalts from the Costa Rica Rift, Deep Sea Drilling Project Legs 69 and 70

S. Karato, R.H. Wilkens, and M.G. Langseth
doi:10.2973/dsdp.proc.69.141.1983

42. High-Pressure Seismic Studies of Leg 69 and 70 Basalts

R.H. Wilkens, N.I. Christensen, and L. Slater
doi:10.2973/dsdp.proc.69.142.1983

43. Physical Properties of Basalts from Deep Sea Drilling Project Hole 504B, Costa Rica Rift

S. Karato
doi:10.2973/dsdp.proc.69.143.1983

44. Basement Paleomagnetism of Hole 504B

T. Furuta and S. Levi
doi:10.2973/dsdp.proc.69.144.1983

45. Magnetic Properties of Basalts, Deep Sea Drilling Project Legs 69 and 70

D.M. Pechersky, L.V. Tikhonov, and N.N. Pertsev
doi:10.2973/dsdp.proc.69.145.1983

46. Magnetic Properties of Basalt Samples from Holes 504B and 505B on the Costa Rica Rift, Deep Sea Drilling Project Legs 69 and 70

T. Furuta
doi:10.2973/dsdp.proc.69.146.1983

47. Magnetic Properties of Basalts from Hole 504B, Deep Sea Drilling Project Leg 69

J.B. O'Donovan and W. O'Reilly
doi:10.2973/dsdp.proc.69.147.1983

Part VII: Igneous Petrology

48. Costa Rica Rift Zone Basalts: Geochemical and Experimental Data from a Possible Example of Multistage Melting

L.K. Autio and J.M. Rhodes
doi:10.2973/dsdp.proc.69.148.1983

49. Trace Element Geochemistry of Basalts from Hole 504B, Panama Basin, Deep Sea Drilling Project Legs 69 and 70

N.G. Marsh, J. Tarney, and G.L. Hendry
doi:10.2973/dsdp.proc.69.149.1983

50. Costa Rica Rift: Variably Depleted Basalts in the Same Hole

J. Etoubleau, O. Corre, J.L. Joron, H. Bougault, and M. Treuil
doi:10.2973/dsdp.proc.69.150.1983

51. Major- and Trace-Element Chemistry of Hole 504B Basalts and Their Alteration Products (Costa Rica Rift, Deep Sea Drilling Project Leg 70)

A.Ya. Sharaskin, A.A. Migdisov, I.A. Rostschina, and A.Z. Miklishansky
doi:10.2973/dsdp.proc.69.151.1983

52. Geochemistry of Basalts from Costa Rica Rift Sites 504 and 505 (Deep Sea Drilling Project Legs 69 and 70)

H.-W. Hubberten, R. Emmermann, and H. Puchelt
doi:10.2973/dsdp.proc.69.152.1983

53. Chromian Spinels in Costa Rica Rift Basalts, Deep Sea Drilling Project Site 505—A Preliminary Interpretation of Electron Microprobe Analyses

T. Furuta and H. Tokuyama
doi:10.2973/dsdp.proc.69.153.1983

54. A Compositionally Nearly Steady-State Magma Chamber at the Costa Rica Rift: Evidence from Basalt Glass and Mineral Data, Deep Sea Drilling Project Sites 501, 504, and 505

J.H. Natland, A.C. Adamson, C. Laverne, W.G. Melson, and T. O'Hearn
doi:10.2973/dsdp.proc.69.154.1983

Part VIII: Appendix

Appendix: Interlaboratory Comparison of Leg 69 and 70 Basalt Standards

H.-W. Hubberten and J.H. Splain
doi:10.2973/dsdp.proc.69.app.1983

DSDP Data and Samples

Citations

Citation information about scientific publications related to this and other DSDP legs is available in the Ocean Drilling Citation Database.

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