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ODP SCIENTIFIC RESULTS
LEG 146, Part 1 - Cascadia Margin

Sample Reference:
Camerlenghi, A., Lucchi, R.G., and Rothwell, R.G., 1995. Grain-size analysis and distribution in Cascadia Margin sediments, northeastern Pacific. In Carson, B., Westbrook, G.K., Musgrave, R.J., and Suess, E. (Eds.), Proc. ODP, Sci. Results, 146 (Pt. 1): College Station, TX (Ocean Drilling Program), 3-31.

Table of Contents

SECTION 1: SEDIMENTOLOGY

Chapter 1: Grain-size analysis and distribution in Cascadia Margin sediments, northeastern Pacific; p. 3-31.

A. Camerlenghi, R.G. Lucchi, and R.G. Rothwell

Chapter 2: Coarse fraction minerals of sands in Cascadia Margin sediments; p. 33-43.

N.P. Chamov and I.O. Murdmaa

SECTION 2: MICROPALEONTOLOGY

Chapter 3: Radiolarians from the Cascadia Margin, Leg 146; p. 47-61.

J.-P. Caulet

Chapter 4: Neogene diatom biostratigraphy of Site 892, Cascadia Margin; p. 63-77.

E. Fourtanier

Chapter 5: Foraminiferal biofacies, paleoenvironments, and biostratigraphy of Neogene-Quaternary sediments, Cascadia Margin; p. 79-113.

S.D. Zellers

SECTION 3: DIAGENETIC DEPOSITS

Chapter 6: Diagenetic carbonates from Cascadia Margin: textures, chemical compositions, and oxygen and carbon stable isotope signatures; p. 117-136.

A. Kopf, J.C. Sample, P. Bauer, J.H. Behrmann, and H. Erlenkeuser

Chapter 7: Isotope geochemistry of syntectonic carbonate cements and veins from the Oregon Margin: implications for the hydrogeologic evolution of the accretionary wedge; p. 137-148.

J.C. Sample and A. Kopf

SECTION 4: GAS HYDRATES

Chapter 8: Gas hydrate and sediment gas composition, Hole 892A; p. 151-161.

M. Hovland, D. Lysne, and M. Whiticar

Chapter 9: Seismic studies of methane gas hydrate, offshore Vancouver Island; p. 163-174.

G.D. Spence, T.A. Minshull, and C. Fink

Chapter 10: Relation between pore fluid chemistry and gas hydrates associated with bottom-simulating
reflectors at the Cascadia Margin, Sites 889 and 892; p. 175-187.

M. Kastner, K.A. Kvenvolden, M.J. Whiticar, A. Camerlenghi, and T.D. Lorenson

SECTION 5: MICROSTRUCTURES AND FABRICS

Chapter 11: CT scan analysis of sediments from Leg 146; p. 191-199.

J. Ashi

Chapter 12: Microstructures in accreted sediments of the Cascadia Margin; p. 201-216.

B. Clennell and A. Maltman

Chapter 13: Microstructural analysis of Sites 891 and 892: implications for deformation processes at the frontal thrust and an out-of-sequence thrust; p. 217-232.

P.A. Teas, H.J. Tobin, and P.E. García

Chapter 14: Magnetic anisotropy fabrics from the Cascadia accretionary prism; p. 233-254.

B.A. Housen and T. Sato

SECTION 6: PHYSICAL PROPERTIES AND HYDROGEOLOGY

Chapter 15: Dewatering of sediments along the Cascadia Margin: evidence from geotechnical properties; p. 257-274.

P. Hempel

Chapter 16: Permeability and stress history of sediment from the Cascadia Margin; p. 275-280.

K. Moran, W.G.D. Gray, and C.A. Jarrett

Chapter 17: The variation of the hydraulic conductivity structure of an overpressured thrust zone with effective stress; p. 281-289.

K.M. Brown

Chapter 18: In situ permeability tests at Site 892: characteristics of a hydrogeologically active fault zone
on the Oregon accretionary prism; p. 291-297.

E.J. Screaton, B. Carson, and G.P. Lennon

Chapter 19: Long-term observations of pressure and temperature in Hole 892B,
Cascadia accretionary prism; p. 299-311.

E.E. Davis, K. Becker, K. Wang, and B. Carson

Chapter 20: Log-based porosity of ODP sites on the Cascadia accretionary prism; p. 313-335.

R.D. Jarrard, M.E. MacKay, G.K. Westbrook, and E.J. Screaton

Chapter 21: Seismic velocities at Site 891 from a vertical seismic profile experiment; p. 337-348.

G.F. Moore, J. Dellinger, M.E. MacKay, and H. Hoskins

Chapter 22: Laboratory measurement of velocity vs. effective stress in thrust faults of the Oregon accretionary prism: implications for fault zone overpressure; p. 349-358.

H.J. Tobin, J.C. Moore, and G.F. Moore

Chapter 23: Frontal thrust, Oregon accretionary prism: geometry, physical properties, and fluid pressure;
p. 359-366.

J.C. Moore, K. Moran, M.E. MacKay, and H. Tobin

SECTION 7: SYNTHESES

Chapter 24: Siliceous microfossil stratigraphic synthesis of Site 892, Cascadia Margin; p. 369-374.

E. Fourtanier and J.-P. Caulet

Chapter 25: Geochemical evidence for fluid flow and diagenesis at the Cascadia convergent margin; p. 375-384.

M. Kastner, J.C. Sample, M.J. Whiticar, M. Hovland, B.A. Cragg, and J.R. Parkes

Chapter 26: Organic geochemistry of gases, fluids, and hydrates at the Cascadia accretionary margin; p. 385-397.

M.J. Whiticar, M. Hovland, M. Kastner, and J.C. Sample

Chapter 27: The impact of fluid and gas venting on bacterial populations and processes in sediments from the Cascadia Margin accretionary system (Sites 888-892) and the geochemical consequences; p. 399-411.

B.A. Cragg, R.J. Parkes, J.C. Fry, A.J. Weightman, P.A. Rochelle, J.R. Maxwell, M. Kastner, M. Hovland, M.J. Whiticar, and J.C. Sample

Chapter 28: Modern fluid flow in the Cascadia accretionary wedge: a synthesis; p. 413-421.

B. Carson and G.K. Westbrook

SECTION 8: DATA REPORTS

Chapter 29: Data Report: Provenance analysis of Quaternary sands and sandstones from Cascadia Margin;
p. 425-429.

J.H. Behrmann, P. Bauer, and A. Kopf

Chapter 30: Data Report: Chemical and isotopic compositions of pore fluids in sediments of the Cascadia accretionary complex; p. 431-438.

M. Kastner and H. Elderfield

Chapter 31: Data Report: Molecular and stable isotope analyses of sorbed and free hydrocarbon gases of Leg 146, Cascadia and Oregon Margins; p. 439-449.

M.J. Whiticar and M. Hovland

Chapter 32: Data Report: Anisotropy of magnetic susceptibility of a set of samples from the Cascadia Margin; p. 451-453.

W.H. Owens

SECTION 9: REPRINT

Chapter 33: Origin of bottom-simulating reflectors: geophysical evidence from the Cascadia accretionary prism; p. 457-460.

M.E. MacKay, R.D. Jarrard, G.K. Westbrook, R.D. Hyndman, and Shipboard Scientific Party of Ocean Drilling Program Leg 146

(Reprinted by permission from Geology, 22:459-462, 1994.

Chapter 34: Technical notes and additions to: origin of bottom-simulating reflectors: geophysical evidence from the Cascadia accretionary prism; p. 461-463.

M.E. MacKay, R.D. Jarrard, G.K. Westbrook, R.D. Hyndman, and Shipboard Scientific Party of Ocean Drilling Program Leg 146

SECTION 10: INDEX

Index; p. 467-477.

BACK-POCKET MATERIALS

Seismic reflection line through Hole 892B.

CD-ROM

The CD-ROM in the back of this volume contains an electronic version of this volume and in Adobe Acrobat. The indexes for all published Proceedings volumes are included in Acrobat format, along with the Acrobat Search engine. The Chapter 15 appendix is also on this CD in ASCII format. The Acrobat Reader 2.1 is included for installation on a personal computer (386-based or higher) running Windows 3.1 or a Macintosh computer (68020 or later processor).

Scientific Results, Vol. 146 (Pt. 1), Directory Structure:

Acrobat:
Copy of Acrobat Reader 2.1 for Macintosh
Copy of Acrobat Reader 2.1 for Windows

Book (Acrobat viewing files linked for viewing):

Chapters
Chapters.PDF

Figures
Chapter number_figure number.PDF

Index
Volume index

Intro_pg (introductory pages of volume)
Intro.PDF

Plates
Chapter number_plate number.PDF

Data (ASCII data file of an appendix within the volume):
Chapter 15: Appendix. Physical properties of all samples analyzed on board and at the shore-based laboratory up to seven years later: 15RKA_1.txt, 15RKC_2.txt, 15RKC_3.txt, and 15AT_4.txt

Index (Acrobat file of all Proceedings indexes)
ODP_NDX.PDF


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Last Modified: 12 January 1996