LEG 157—SCIENTIFIC RESULTS
Gran Canaria and Madeira Abyssal Plain
Sites 950-956

August 1998
ISSN 1096-7451
doi:10.2973/odp.proc.sr.157.1998

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TABLE OF CONTENTS

Preliminary Pages

SECTION 1: GEOPHYSICS--GRAN CANARIA VOLCANIC APRON

1. Comparison of seismic reflection data to a synthetic seismogram in a volcanic apron at Site 953, pp. 3-10
T. Funck and H. Lykke-Andersen (3.3 MB)
doi:10.2973/odp.proc.sr.157.100.1998


2. Seismic structure of the volcanic apron north of Gran Canaria, pp. 11-28
T. Funck and H. Lykke-Andersen (7 MB)
doi:10.2973/odp.proc.sr.157.101.1998


3. Determination and characterization of volcaniclastic sediments by wireline logs: Sites 953, 955, and 956, Canary Islands, pp. 29-38
H. Delius, C. Bücker, and J. Wohlenberg (2.3 MB)
doi:10.2973/odp.proc.sr.157.137.1998

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4. Hole 956B: Downhole FMS measurements in the southern volcanic apron of Gran Canaria,
Central Atlantic, pp. 39-46
N. Binard, H.-U. Schmincke, and M. Sumita (1.8 MB)
doi:10.2973/odp.proc.sr.157.138.1998

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5. Coring-induced magnetization of recovered sediment, pp. 47-56
M. Fuller, M. Hastedt, and B. Herr (.7 MB)
doi:10.2973/odp.proc.sr.157.103.1998

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6. Influence of drilling on two records of the Matuyama/Brunhes polarity transition in marine sediment cores near Gran Canaria , pp. 57-70
B. Herr, M. Fuller, M. Haag, and F. Heider (11.7 MB)
doi:10.2973/odp.proc.sr.157.105.1998

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SECTION 2: PALEONTOLOGY--GRAN CANARIA VOLCANIC APRON

7. Late Pliocene and Quaternary paleoceanography of the Canary Island region inferred from planktonic foraminifer assemblages of Site 953, pp. 73-82
C.A. Brunner and R. Maniscalco (6 MB)
doi:10.2973/odp.proc.sr.157.106.1998

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8. Calcareous nannofossil biostratigraphy of Site 953, Canary Basin, northeastern North Atlantic, pp. 83-96
J. Sblendorio-Levy and R.W. Howe (707 KB)
doi:10.2973/odp.proc.sr.157.107.1998

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9. Biostratigraphic and magnetostratigraphic evaluation of Sites 953, 954, 955, and 956,
Canary Islands , pp. 97-114
C. Brunner, J. Sblendorio-Levy, R. Maniscalco, R. Howe, B. Herr, M. Fuller, P. Goldstrand, and
P. van den Bogaard (899 KB)
doi:10.2973/odp.proc.sr.157.108.1998

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10. Neogene and Quaternary planktonic foraminiferal biostratigraphy of the Canary Island region, pp. 115-124
R. Maniscalco and C.A. Brunner (643 KB)
doi:10.2973/odp.proc.sr.157.109.1998

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

11. Chronostratigraphy of Gran Canaria, pp. 127-140
P. van den Bogaard and H.-U. Schmincke (1.8 MB)
doi:10.2973/odp.proc.sr.157.116.1998

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12. Shallow submarine to emergent basaltic shield volcanism of Gran Canaria: evidence from drilling into the volcanic apron, pp. 141-182
H.-U. Schmincke and B. Segschneider (20.5 MB)
doi:10.2973/odp.proc.sr.157.110.1998

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13. Processes of volcaniclastic sedimentation during the early growth stages of Gran Canaria based on sediments from Site 953, pp. 183-200
S. Carey, T. Maria, and W. Cornell (11.8 MB)
doi:10.2973/odp.proc.sr.157.119.1998

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14. Emplacement of ash layers related to high-grade ignimbrite P1 in the sea around Gran Canaria, pp. 201-218
A. Freundt and H.-U. Schmincke (6.6 MB)
doi:10.2973/odp.proc.sr.157.112.1998

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15. 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, pp. 219-266
M. Sumita and H.-U. Schmincke (9.9 MB)
doi:10.2973/odp.proc.sr.157.114.1998

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16. Tephra event stratigraphy and emplacement of volcaniclastic sediments, Mogán and Fataga stratigraphic intervals, Part II: origin and emplacement of volcaniclastic layers, pp. 267-292
H.-U. Schmincke and M. Sumita (27.6 MB)
doi:10.2973/odp.proc.sr.157.113.1998

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17. Epiclastic sedimentation during the upper Miocene-lower Pliocene volcanic hiatus of Gran Canaria: evidence from Sites 953 and 954, pp. 293-314
J.-L. Schneider, C.A. Brunner, and S. Kuttner (5.6 MB)
doi:10.2973/odp.proc.sr.157.120.1998

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18. Geochemistry and petrology of Pleistocene ash layers erupted at Las Cańadas Edifice (Tenerife), pp. 315-328
U. Rodehorst, H.-U. Schmincke, and M. Sumita (1 MB)
doi:10.2973/odp.proc.sr.157.117.1998

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19. 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), pp. 329-342
P. van den Bogaard (921 KB)
doi:10.2973/odp.proc.sr.157.141.1998

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20. Provenance and sedimentologic variations of turbidite and slump deposits at Sites 955 and 956, pp. 343-360
P.M. Goldstrand (942KB)
doi:10.2973/odp.proc.sr.157.122.1998

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21. Organic matter in Neogene sediments of the Southern Canary Channel, Canary Islands
(Sites 955 and 956), pp. 361-372
R. Littke, A. Lückge, and H. Wilkes (1.4 MB)
doi:10.2973/odp.proc.sr.157.144.1998

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

22. Melt, crystal, and fluid inclusions in olivine and clinopyroxene phenocrysts from the submarine shield stage hyaloclastites of Gran Canaria, Sites 953 and 956, pp. 375-402
A.A. Gurenko, T.H. Hansteen, and H.-U. Schmincke (1.3 MB)
doi:10.2973/odp.proc.sr.157.111.1998

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23. 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, pp. 403-410
T.H. Hansteen and A.A. Gurenko (796 KB)
doi:10.2973/odp.proc.sr.157.139.1998

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24. Pre-eruptive H2O and CO2 contents of mafic magmas from the submarine to emergent shield
stages of Gran Canaria, pp. 411-420
P.J. Wallace (1.5 MB)
doi:10.2973/odp.proc.sr.157.146.1998

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25. Geochemistry of sideromelane and felsic glass shards in Pleistocene ash layers at Sites 953,
954, and 956, pp. 421-428
A.A. Gurenko and H.-U. Schmincke (1 MB)
doi:10.2973/odp.proc.sr.157.118.1998

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26. Textural and fluid inclusion evidence for hydrothermal activity in the volcaniclastic apron of Gran Canaria, pp. 429-440
S. Lindblom and M. Gérard (16.8 MB)
doi:10.2973/odp.proc.sr.157.124.1998

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SECTION 5: SYNTHESIS--GRAN CANARIA VOLCANIC APRON

27. Volcanic evolution of Gran Canaria reconstructed from apron sediments: synthesis of VICAP project drilling, pp. 443-470
H.-U. Schmincke and M. Sumita (2.2 MB)
doi:10.2973/odp.proc.sr.157.135.1998

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SECTION 6: GEOPHYSICS--MADEIRA ABYSSAL PLAIN

28. Seismic facies of the Madeira Abyssal Plain: a correlation between seismic reflection profile and borehole data, pp. 473-498
R.G. Rothwell, B. Alibés, and P.P.E. Weaver (8.1 MB)
doi:10.2973/odp.proc.sr.157.127.1998

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SECTION 7: PALEONTOLOGY--MADEIRA ABYSSAL PLAIN

29. Calcareous nannofossil biostratigraphy and sediment accumulation of turbidite sequences
on the Madeira Abyssal Plain, Sites 950-952, pp. 501-520
R.W. Howe and J. Sblendorio-Levy (15.3 MB)
doi:10.2973/odp.proc.sr.157.147.1998

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SECTION 8: SEDIMENTOLOGY--MADEIRA ABYSSAL PLAIN

30. Sedimentation on the Madeira Abyssal Plain: Eocene-Pleistocene history of turbidite infill, pp. 523-532
S.M. Lebreiro, P.P.E. Weaver, and R.W. Howe (592 KB)
doi:10.2973/odp.proc.sr.157.128.1998

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SECTION 9: GEOCHEMISTRY--MADEIRA ABYSSAL PLAIN

31. Chemostratigraphy of Madeira Abyssal Plain Miocene-Pleistocene turbidites, Site 950, pp. 535-558
I. Jarvis, J. Moreton, and M. Gérard (1.6 MB)
doi:10.2973/odp.proc.sr.157.129.1998

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32. Oxidation fronts in Madeira Abyssal Plain turbidites: persistence of early diagenetic trace-element enrichments during burial, Site 950, pp. 559-572
J. Thomson, I. Jarvis, D.R.H. Green, and D. Green (835 KB)
doi:10.2973/odp.proc.sr.157.130.1998

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33. Oxic vs. anoxic diagenetic alteration of turbiditic sediments in the Madeira Abyssal Plain,
eastern North Atlantic, pp. 573-580
G.J. De Lange (900 KB)
doi:10.2973/odp.proc.sr.157.143.1998

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34. Extents and implications of organic matter alteration at oxidation fronts in turbidites from the Madeira Abyssal Plain, pp. 581-590
G. Cowie, S. Calvert, G. De Lange, R. Keil, and J. Hedges (2.3 MB)
doi:10.2973/odp.proc.sr.157.150.1998

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35. Changes in kerogen composition across an oxidation front in Madeira Abyssal Plain turbidites
as revealed by pyrolysis GC-MS, pp. 591-608
M.J.L. Hoefs, J.S. Sinninghe Damste, G. De Lange, and J.W. de Leeuw (4.8 MB)
doi:10.2973/odp.proc.sr.157.140.1998

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36. High-resolution silica pore-water profiles in sediments of the Madeira Abyssal Plain, eastern North Atlantic, pp. 609-612
G.J. De Lange (467 KB)
doi:10.2973/odp.proc.sr.157.142.1998

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SECTION 10: DATA REPORT--MADEIRA ABYSSAL PLAIN

37. Data Report: Post-cruise correction of core depths of Madeira Abyssal Plain sites for general reference use, pp. 615-616
S.M. Lebreiro and P.P.E. Weaver (145 KB)
doi:10.2973/odp.proc.sr.157.148.1998

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SECTION 11: SYNTHESIS--MADEIRA ABYSSAL PLAIN

38. Neogene turbidite sequence on the Madeira Abyssal Plain: basin filling and diagenesis in the deep ocean, pp. 619-634
P.P.E. Weaver, I. Jarvis, S.M. Lebreiro, B. Alibés, J. Baraza, R. Howe, and R.G. Rothwell (1.6 MB)
doi:10.2973/odp.proc.sr.157.136.1998

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SECTION 12: INDEX

 

Index pp. 637 (148 KB)


CORE DATA

 
Logging Data for Leg 157, please contact Lamont-Doherty Earth Observatory.