TABLE OF CONTENTS

VOLUME 157--SCIENTIFIC RESULTS

SECTION 1: GEOPHYSICS--GRAN CANARIA VOLCANIC APRON

1. Determination and characterization of volcaniclastic sediments by wireline logs: Sites 953,
   955, and 956, Canary Islands 29

H. Delius, C. Bücker, and J. Wohlenberg

1. Hole 956B: Downhole FMS measurements in the southern volcanic apron of Gran Canaria,
   Central Atlantic 39

N. Binard, H.-U. Schmincke, and M. Sumita

1. Coring-induced magnetization of recovered sediment 47

M. Fuller, M. Hastedt, and B. Herr

1. Influence of drilling on two records of the Matuyama/Brunhes polarity transition in marine
   sediment cores near Gran Canaria 57

B. Herr, M. Fuller, M. Haag, and F. Heider

SECTION 2: PALEONTOLOGY--GRAN CANARIA VOLCANIC APRON

1. Late Pliocene and Quaternary paleoceanography of the Canary Island region inferred from
   planktonic foraminifer assemblages of Site 953 73

C.A. Brunner and R. Maniscalco

1. Calcareous nannofossil biostratigraphy of Site 953, Canary Basin, northeastern North Atlantic 83

J. Sblendorio-Levy and R.W. Howe

1. Biostratigraphic and magnetostratigraphic evaluation of Sites 953, 954, 955, and 956,
   Canary Islands 97

C. Brunner, J. Sblendorio-Levy, R. Maniscalco, R. Howe, B. Herr, M. Fuller, P. Goldstrand, and
P. van den Bogaard

1. Neogene and Quaternary planktonic foraminiferal biostratigraphy of the Canary Island region 115

R. Maniscalco and C.A. Brunner

SECTION 3: VOLCANOLOGY AND SEDIMENTOLOGY--GRAN CANARIA VOLCANIC APRON

1. Chronostratigraphy of Gran Canaria 127

P. van den Bogaard and H.-U. Schmincke

1. Shallow submarine to emergent basaltic shield volcanism of Gran Canaria: evidence from
   drilling into the volcanic apron 141

H.-U. Schmincke and B. Segschneider

1. Processes of volcaniclastic sedimentation during the early growth stages of Gran Canaria
   based on sediments from Site 953 183

S. Carey, T. Maria, and W. Cornell

1. Emplacement of ash layers related to high-grade ignimbrite P1 in the sea around Gran Canaria 201

A. Freundt and H.-U. Schmincke

1. Tephra event stratigraphy and emplacement of volcaniclastic sediments, Mogán and Fataga
   stratigraphic intervals, Part I: mineral and chemical stratigraphy of volcaniclastic units and
   correlation to the subaerial record 219

M. Sumita and H.-U. Schmincke

1. Tephra event stratigraphy and emplacement of volcaniclastic sediments, Mogán and Fataga
   stratigraphic intervals, Part II: origin and emplacement of volcaniclastic layers 267

H.-U. Schmincke and M. Sumita

1. Epiclastic sedimentation during the upper Miocene-lower Pliocene volcanic hiatus
   of Gran Canaria: evidence from Sites 953 and 954 293

J.-L. Schneider, C.A. Brunner, and S. Kuttner

1. Geochemistry and petrology of Pleistocene ash layers erupted at Las Cañadas Edifice
   (Tenerife) 315

U. Rodehorst, H.-U. Schmincke, and M. Sumita

1. 40 Ar/ 39 Ar ages of Pliocene-Pleistocene fallout tephra layers and volcaniclastic deposits
   in the sedimentary aprons of Gran Canaria and Tenerife (Sites 953, 954, and 956) 329

P. van den Bogaard

1. Provenance and sedimentologic variations of turbidite and slump deposits at Sites 955
   and 956 343

P.M. Goldstrand

1. Organic matter in Neogene sediments of the Southern Canary Channel, Canary Islands
   (Sites 955 and 956) 361

R. Littke, A. Lückge, and H. Wilkes

SECTION 4: IGNEOUS PETROLOGY/GEOCHEMISTRY--GRAN CANARIA VOLCANIC APRON

1. Melt, crystal, and fluid inclusions in olivine and clinopyroxene phenocrysts from the submarine
   shield stage hyaloclastites of Gran Canaria, Sites 953 and 956 375

A.A. Gurenko, T.H. Hansteen, and H.-U. Schmincke

1. Sulfur, chlorine, and fluorine in glass inclusions in olivine and clinopyroxene from basaltic
   hyaloclastites representing the Gran Canaria shield stage at Sites 953 and 956 403

T.H. Hansteen and A.A. Gurenko

1. Pre-eruptive H 2 O and CO 2 contents of mafic magmas from the submarine to emergent shield
   stages of Gran Canaria 411

P.J. Wallace

1. Geochemistry of sideromelane and felsic glass shards in Pleistocene ash layers at Sites 953,
   954, and 956 421

A.A. Gurenko and H.-U. Schmincke

1. Textural and fluid inclusion evidence for hydrothermal activity in the volcaniclastic apron
   of Gran Canaria 429

S. Lindblom and M. Gérard

SECTION 5: SYNTHESIS--GRAN CANARIA VOLCANIC APRON

1. Volcanic evolution of Gran Canaria reconstructed from apron sediments: synthesis of VICAP
   project drilling 443

H.-U. Schmincke and M. Sumita

SECTION 6: GEOPHYSICS--MADEIRA ABYSSAL PLAIN

1. Seismic facies of the Madeira Abyssal Plain: a correlation between seismic reflection profile and borehole data 473

R.G. Rothwell, B. Alibés, and P.P.E. Weaver

SECTION 7: PALEONTOLOGY--MADEIRA ABYSSAL PLAIN

1. Calcareous nannofossil biostratigraphy and sediment accumulation of turbidite sequences
   on the Madeira Abyssal Plain, Sites 950-952 501

R.W. Howe and J. Sblendorio-Levy

SECTION 8: SEDIMENTOLOGY--MADEIRA ABYSSAL PLAIN

1. Sedimentation on the Madeira Abyssal Plain: Eocene-Pleistocene history of turbidite infill 523

S.M. Lebreiro, P.P.E. Weaver, and R.W. Howe

SECTION 9: GEOCHEMISTRY--MADEIRA ABYSSAL PLAIN

1. Chemostratigraphy of Madeira Abyssal Plain Miocene-Pleistocene turbidites, Site 950 535

I. Jarvis, J. Moreton, and M. Gérard

1. Oxidation fronts in Madeira Abyssal Plain turbidites: persistence of early diagenetic trace-
   element enrichments during burial, Site 950 559

J. Thomson, I. Jarvis, D.R.H. Green, and D. Green

1. Oxic vs. anoxic diagenetic alteration of turbiditic sediments in the Madeira Abyssal Plain,
   eastern North Atlantic 573

G.J. De Lange

1. Extents and implications of organic matter alteration at oxidation fronts in turbidites from the
   Madeira Abyssal Plain 581

G. Cowie, S. Calvert, G. De Lange, R. Keil, and J. Hedges

1. Changes in kerogen composition across an oxidation front in Madeira Abyssal Plain turbidites
   as revealed by pyrolysis GC-MS 591

M.J.L. Hoefs, J.S. Sinninghe Damste, G. De Lange, and J.W. de Leeuw

1. High-resolution silica pore-water profiles in sediments of the Madeira Abyssal Plain,
   eastern North Atlantic 609

G.J. De Lange

SECTION 10: DATA REPORT--MADEIRA ABYSSAL PLAIN

1. Data Report: Post-cruise correction of core depths of Madeira Abyssal Plain sites for general
   reference use 615

S.M. Lebreiro and P.P.E. Weaver

SECTION 11: SYNTHESIS--MADEIRA ABYSSAL PLAIN

1. Neogene turbidite sequence on the Madeira Abyssal Plain: basin filling and diagenesis
   in the deep ocean 619

P.P.E. Weaver, I. Jarvis, S.M. Lebreiro, B. Alibés, J. Baraza, R. Howe, and R.G. Rothwell

SECTION 12: INDEX

1. Index 637

BACK-POCKET MATERIALS

Oversized Tables and Figure

Chapter 10:
Table 1. Distribution of planktonic foraminifers, Hole 953A.

Table 3. Distribution of planktonic foraminifers, Hole 953C.

Table 4. Distribution of planktonic foraminifers, Hole 954B.

Chapter 29:
Table 1. Miocene nannofossil distribution chart, Hole 950A.

Table 2. Paleogene nannofossil distribution chart, Hole 950A.

Table 3. Composite Miocene nannofossil distribution chart, Holes 951A and 951B.

Table 4. Miocene nannofossil distribution chart, Hole 952A.

Chapter 30:
Figure 2. Lithologic logs for the three Madeira Abyssal Plain Sites 950, 951, and 952. Individual turbidites are recorded and divided into their respective compositional groups. The magnetic susceptibility log is also shown with high values being indicative of sediments containing a high volcanic component such as the volcanic-rich turbidites. Some of the correlations between the sites are shown, but many more are possible. Note the very similar sequences in each site above ~235 mbsf and the stronger differences below this level.

CD-ROM

The "Proceedings, Scientific Results" CD-ROM contains an electronic version of the Leg 157 Scientific Results volume in Adobe Acrobat, as well as data sets not included in the printed volume (see directory structure below). The volume is designed for Adobe Acrobat Reader 3 software, which is supplied on the CD. All files with a .PDF extension should be viewed through Acrobat. Data files in ASCII format (files with .TXT extensions) or Excel format (files with .XLS extensions) should be opened through a spreadsheet or text-editing software application.

There are four starting points for this CD in the root directory:

ACROREAD.TXT is an ASCII file that explains how to install Adobe Acrobat on any of the available platforms.

README.PDF is an Acrobat file that contains information about the CD, lists available files and how to use them, and describes how the core images were created.

README.TXT is an ASCII file that contains information about the CD, lists available files and how to use them, and describes how the core images were created.

157SR.PDF lists the table of contents for this volume and contains links to the volume chapters.

PROCEEDINGS, SCIENTIFIC RESULTS CD
Directory Structure:

ACROREAD.TXT (readme file for Acrobat Reader)

README.PDF (PDF readme file for Leg 157 Scientific Results volume)

README.TXT (ASCII readme file for Leg 157 Scientific Results volume)

157SR.PDF (volume table of contents)

ACROBAT (Acrobat software)

VOLUME

PRELIM.PDF (volume preliminary pages)

CHAP_01.PDF

CHAP_02.PDF

CHAP_03.PDF

CHAP_04.PDF

CHAP_05.PDF

CHAP_06.PDF

CHAP_07.PDF

CHAP_08.PDF

CHAP_09.PDF

CHAP_10.PDF

CHAP_11.PDF

CHAP_12.PDF

CHAP_13.PDF

CHAP_14.PDF

CHAP_15.PDF

CHAP_16.PDF

CHAP_17.PDF

CHAP_18.PDF

CHAP_19.PDF

CHAP_20.PDF

CHAP_21.PDF

CHAP_22.PDF

CHAP_23.PDF

CHAP_24.PDF

CHAP_25.PDF

CHAP_26.PDF

CHAP_27.PDF

CHAP_28.PDF

CHAP_29.PDF

CHAP_30.PDF

CHAP_31.PDF

CHAP_32.PDF

CHAP_33.PDF

CHAP_34.PDF

CHAP_35.PDF

CHAP_36.PDF

CHAP_37.PDF

CHAP_38.PDF

157INDEX.PDF

CD_ONLY (see below for list of files)

INDEX (Compiled Electronic Index of the Proceedings of the Ocean Drilling Program)

List of CD-ONLY files by chapter:

CHAP_07 (Chapter 7):

07_03.TXT: Table 3. Percentages of planktonic foraminifers from late Pliocene and Quaternary intervals, Site 953.

CHAP_08 (Chapter 8):

08_02.TXT: Table 2. Distribution chart of Pliocene-Pleistocene calcareous nannofossils. Site 953.

08_05.TXT: Table 5. Distribution chart of Miocene calcareous nannofossils, Site 953.

CHAP_37 (Chapter 37):

Tables 1-3 are available in ASCII tab-delimited format and as Excel spreadsheets. The tables are organized in the following directory structure:

37_01.TXT, 37_01.XLS: Table 1. Depth correction table for Hole 950A.

37_02.TXT, 37_02.XLS: Table 2. Depth correction table for Hole 951A.

37_03.TXT, 37_03.XLS: Table 3. Depth correction table for Hole 952A