Disaster opportunists Guembelitrinidae: Index for environmental catastrophes

Marine Micropaleontology

Volumn 53, Issue 1-2, 2004, Pages 83-116

  Keller, Gerta ^a   Pardo, Alfonso ^b  

^a PRINCETON UNIVERSITY   (United States)

^b Grupo de Investigacion del Medio Ambiente del Centro de Estudios Superiores GIMACES   (Spain)

Author keywords

Guembelitria blooms; impacts; K T; late Maastrichtian; Volcanism

Indexed keywords

ALGAL BLOOM; ASTROBLEME; CRETACEOUS-TERTIARY BOUNDARY; DANIAN; FOSSIL RECORD; MAASTRICHTIAN; MASS EXTINCTION; SUCCESSION; VOLCANISM;

GUEMBELITRIA;

EID: 8444242926     PISSN: 03778398     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.marmicro.2004.04.012     Document Type: Article

References (111)

1. Abramovich S., Keller G. High stress late Maastrichtian paleoenvironment: inferences from planktic foraminifera in Tunisia. Palaeogeogr. Palaeoclimatol. Palaeoecol. 178:2002;145-164
2. Abramovich S., Keller G. Planktic foraminiferal response to the latest Maastrichtian abrupt warm event: a case study from South Atlantic DSDP Site 525A. Mar. Micropaleontol. 48:2003;225-249
3. Abramovich S., Almogi L.A., Benjamini C. Decline of the Maastrichtian pelagic ecosystem based on planktic foraminifera assemblage change: implication for the terminal Cretaceous faunal crisis. Geology. 26(1):1998;63-66
4. Abramovich S., Keller G., Adatte T., Stinnesbeck W., Hottinger L., Stueben D., Berner Z., Ramanivosoa B., Randriamanantenasoa A. Age and paleoenvironment of the Maastrichtian-Paleocene of the Mahajanga basin. Madagascar: a multidisciplinary approach. Mar. Micropaleontol. 47:2002;17-70
5. Abramovich S., Keller G., Stueben D., Berner Z. Characterization of late Campanian and Maastrichtian planktonic foraminiferal depth habitats and vital activities based on stable isotopes. Palaeogeogr. Palaeoclimatol. Palaeoecol. 202:2003;1-29
6. Adatte T., Keller G., Stinnesbeck W. Late Cretaceous to early Paleocene climate and sea-level fluctuations. Palaeogeogr. Palaeoclimatol. Palaeoecol. 178:2002;165-196
7. Alegret L., Thomas E. Upper Cretaceous and lower Paleogene benthic foraminifera from the Gulf of Mexico. Micropaleontology. 47:2001;269-316
8. Alegret L., Molina E., Thomas E. Benthic foraminifera at the Cretaceous-Tertiary boundary around the Gulf of Mexico. Geology. 29(10):2001;891-894
9. Alegret L., Arenillas I., Arz J.A., Liesa C., Melendez A., Molina E., Soria A.R., Thomas E. The Cretaceous/Tertiary boundary: sedimentology and micropaleontology at El Mulato section, NE Mexico. Terra Nova. 14:2002;330-336
10. Alegret L., Molina E., Thomas E. Benthic foraminiferal turnover across the Cretaceous/Paleogene boundary at Agost (southeastern Spain): paleoenvironmental inferences. Mar. Micropaleontol. 48:2003;251-279
11. Barrera E., Keller G. Stable isotope evidence for gradual environmental changes and species survivorship across the Cretaceous/Tertiary boundary. Paleoceanography. 5(6):1990;867-890
12. Barrera E., Keller G. Productivity across the Cretaceous-Tertiary boundary in high latitudes. Geol. Soc. Amer. Bull. 106:1994;1254-1266
13. Begon M., Harper J.L., Townsend C.R. Ecology: Individuals, Populations and Communities. 3rd ed.:1998;Blackwell Science, Boston, MA. 1068 pp.
14. Berggren W.A., Kent D.V., Swisher C.C. III, Miller K.G. A revised Paleogene geochronology and chronostratigraphy. Berggren W.A., Kent D.V., Handervol J. Society of Economic Geology and Paleontology. vol. 54:1995;129-213 Special Publications
15. Brinkhuis H., Zachariasse W.J. Dinoflagellate cysts, sea level changes and planktonic foraminifers across the Cretaceous-Tertiary boundary at El Haria, Northwest Tunisia. Mar. Micropaleontol. 13:1988;153-191
16. Buzas M.A. Another look at confidential limits for species proportions. J. Paleontol. 64:1990;842-843
17. Canudo J.I., Keller G., Molina E. Cretaceous/tertiary extinction pattern and faunal turnover at Agost and Caravaca: S.E. Spain. Mar. Micropaleontol. 17:1991;319-341
18. Chatterjee, S., Guven, N., Yoshinobu, A., Donofrio, R., 2003. The Shiva crater: implications for Deccan volcanism, India-Seychelles rifting, dinosaur extinction, and petroleum entrapment at the KT boundary. 2003 GSA Seattle Annual Meeting (November 2-5, 2003). Abstract. # 58126.
19. Coccioni, R., Luciani, B. "Guembelitria irregularis" bloom at the K-T boundary: morphological abnormalities induced by impact-related extreme environmental stress? (in preparation).
20. Courtillot V.E. Evolutionary Catastrophes: The Science of Mass Extinction. 1999;Cambridge University Press. 174 pp.
21. Culver S. Benthic foraminifera across the Cretaceous-Tertiary (K-T) boundary: a review. Mar. Micropaleontol. 47:2003;177-226
22. Cushman J.A. Some new foraminiferal genera. Contrib. Cushman Lab. Foraminifer. Res. 9:1933;32-38
23. Cushman J.A. Midway foraminifera from Alabama. Contrib. Cushman Lab. Foraminifer. Res. 16:1940;51-73
24. Denham C.R., Scotese C.R. Terra Mobilis: A Plate Tectonic Program for the Macintosh. 1987;Geoimages, Austin, TX. 26 pp.
25. D'Hondt S., Keller G. Some patterns of planktic foraminiferal assemblage turnover at the Cretaceous-Tertiary boundary. Mar. Micropaleontol. 17:1991;77-118
26. D'Hondt S., Donaghay P., Zachos J.C., Luttenberg D., Lindinger M. Organic carbon fluxes and ecological recover from the Cretaceous-Tertiary mass extinction. Science. 282:1998;276-279
27. Dressler B.O., Sharpton V.L., Morgan J., Buffler R., Moran D., Smit J., Stöffler D., Urrutia J. Investigating a 65-Ma-old smoking gun: deep drilling of the Chicxulub impact structure. EOS, Trans., Am. Geophys. Union. 84(14):2003;125-130
28. Ehrenberg C.G. Mikrogeologie. 1854;L. Voss, Leipzig. 374 pp.
29. Finlay H.J. New Zealand Foraminifera: key species in stratigraphy. Trans. R. Soc. N. Z. 69(2):1939;309-329
30. Fourcade E., Rocchia R., Gardin S., Bellier J.-P., Debrabant P., Massure E., Robin E., Pop W.T. Age of the Guatemala breccia around the Cretaceous-Tertiary boundary: relationship with the asteroid impact on the Yucatan. C. R. Acad. Sci., Ser. 2, Sci. Terre Planetes. 327:1998;47-53
31. Hallam A., Wignall P.B. Mass Extinctions and Their Aftermath. 1997;Oxford University Press, Oxford. 320 pp.
32. Hallock P. Fluctuations in the trophic resource continuum: a factor in global diversity cycles? Paleoceanography. 2:1987;457-471
33. Hallock P. Chapter I. Reefs and reef limestones in earth history. Birkeland C. Life and Death of Coral Reefs. 1996;13-42 Chapman-Hall Science, New York
34. Hallock P., Premoli-Silva I., Boersma A. Similarities between planktonic and larger foraminiferal evolutionary trends through Paleogene paleoceanographic changes. Palaeogeogr. Palaeoclimatol. Palaeoecol. 83:1991;49-64
35. Hildebrand A.R., Penfield G.T., Kring D.A., Pilkington M., Camargo Z.A., Jacobson S., Boynton W.V. Chicxulub crater: a possible cretaceous/tertiary boundary impact crater on the Yucatan Peninsula, Mexico. Geology. 19:1991;867-871
36. 39Ar dating of mineral separates and whole rocks from the Western Ghats lava pile: further constraints on duration and age of Deccan Traps. Earth Planet. Sci. Lett. 180:2000;13-27
37. Hofker J. Analysis of a large succession of samples through the upper Maastrichtian and lower tertiary of drill hole 47.2, Shatsky Rise, Deep Sea Drilling Project. J. Foraminiferal Res. 8:1978;46-75
38. Huber B.T., Boersma A. Cretaceous origination of Zeauvigerina and its relationship to Paleogene biserial planktonic foraminifera. J. Foraminiferal Res. 24:1994;268-287
39. Huber B.T., MacLeod K.G., Norris R.D. Abrupt extinction and subsequent reworking of Cretaceous planktonic foraminifera across the Cretaceous-Tertiary boundary: evidence from the subtropical North Atlantic. Spec. Pap.-Geol. Soc. Am. 356:2002;277-289
40. Jenkins D.G. Planktonic foraminiferal zones and new taxa from the Danian to lower Miocene of New Zealand. N. Z. J. Geol. Geophys. 8:1966;1088-1126
41. Keller G. Extinction, survivorship and evolution of planktic foraminifers across the Cretaceous/Tertiary boundary at El Kef, Tunisia. Mar. Micropaleontol. 13:1988;239-263
42. Keller G. Biotic turnover in benthic foraminifera across the Cretaceous-Tertiary boundary at El Kef, Tunisia. Palaeogeogr. Palaeoclimatol. Palaeoecol. 66:1988;153-171
43. Keller G. Extended Cretaceous/Tertiary boundary extinctions and delayed population change in planktonic foraminifera from Brazos River, Texas. Paleoceanography. 4:1989;287-332
44. Keller G. Paleoecologic response of Tethyan benthic foraminifera to the Cretaceous-Tertiary boundary transition. Takayanagi Y., Saito T. Studies in Benthic Foraminifera. 1992;77091 Tokai University Press, Tokyo
45. Keller G. The Cretaceous/Tertiary boundary transition in the Antarctic Ocean and its global implications. Mar. Micropaleontol. 21:1993;1-45
46. Keller G. The end-Cretaceous mass extinction in the marine realm: year 2000 assessment. Planet. Space Sci. 49:2001;817-830
47. Keller G. Guembelitria dominated late Maastrichtian planktic foraminiferal assemblages mimic early Danian in Central Egypt. Mar. Micropaleontol. 47:2002;71-99
48. Keller G. Biotic effects of volcanism and impacts. Earth Planet. Sci. Lett. 215:2003;249-264
49. Keller G. Low diversity late Maastrichtian and early Danian planktic foraminiferal assemblages of the eastern Tethys. J. Foraminiferal Res. 2004;. (in press)
50. Keller G., Benjamini C. Paleoenvironment of the eastern Tethys in the early paleocene. Palaios. 6:1991;439-464
51. 3 record across the Cretaceous-Tertiary boundary at El Kef, Tunisia. Palaeogeogr. Palaeoclimatol. Palaeoecol. 73:1989;243-265
52. Keller G., D'Hondt S., Vallier T.L. Multiple microtektite in Upper Eocene marine sediments: no evidence for mass extinction. Science. 221:1983;150-152
53. Keller G., Barrera E., Schmitz B., Matsson E. Gradual mass extinction, species survivorship, and long term environmental changes across the Cretaceous-Tertiary boundary in high latitudes. Geol. Soc. Amer. Bull. 105:1993;979-997
54. Keller G., Stinnesbeck W., Lopez-Oliva J.G. Age, deposition and biotic effects of the cretaceous/Tertiary boundary event at Mimbral NE Mexico. Palaios. 9:1994;144-157
55. Keller G., Li L., MacLeod N. The Cretaceous-Tertiary boundary stratotype section at El Kef, Tunisia: how catastrophic was the mass extinction? Palaeogeogr. Palaeoclimatol. Palaeoecol. 119:1995;221-254
56. Keller G., Lopez-Oliva J.G., Stinnesbeck W., Adatte T. Age, stratigraphy and deposition of near K/T siliciclastic deposits in Mexico: relation to bolide impact? Geol. Soc. Amer. Bull. 109:1997;410-428
57. Keller G., Adatte T., Stinnesbeck W., Stueben D., Kramar U., Berner Z., Li L., von Salis Perch Nielsen K. The Cretaceous-Tertiary transition on the shallow Saharan platform of southern Tunisia. Geobios. 30(7):1998;951-975
58. Keller G., Han Q., Adatte T., Burns S.J. Paleoenvironment of the Cenomanian Turonian transition at Eastbourne, England. Cretac. Res. 22:2001;391-422
59. Keller G., Adatte T., Stinnesbeck W., Luciani V., Karoui-Yaakoub N., Zaghbib-Turki D. Paleoecology of the Cretaceous-Tertiary mass extinction in planktonic foraminifera. Palaeogeogr. Palaeoclimatol. Palaeoecol. 178:2002;257-297
60. Keller G., Stinnesbeck W., Adatte T., Stueben D. Multiple impacts across the Cretaceous-Tertiary boundary. Earth-Sci. Rev. 62:2003;327-363
61. Keller G., Adatte T., Stinnesbeck W., Rebolledo-Vieyra M., Urrutia-Fucugauchi J., Stueben D. Chicxulub impact predates the KT boundary mass extinction. Proc. Natl. Acad. Sci. 101(11):2004;3753-3758
62. Kelley P.S., Gurov E. Boltysh, another end-Cretaceous impact. Meteorit. Planet. Sci. 37:2002;1031-1043
63. Koutsoukos E.A.M. Early Stratigraphic record and phylogeny of the planktonic genus Guembelitria Cushman, 1933. J. Foraminiferal Res. 24(4):1994;288-295
64. Koutsoukos E.A.M. Phenotypic experiments into new pelagic niches in early Danian planktonic foraminifera: aftermath of the K/T boundary event. Hart M.B. Biotic Recovery from Mass Extinction Events. Spec. Publ.-Geol. Soc. vol. 102:1996;319-335
65. Kroon D., Nederbragt A.J. Ecology and paleoecology of triserial planktic foraminifera. Mar. Micropaleontol. 16:1990;25-38
66. Leckie R.M. Paleoecology of mid-cretaceous planktonic foraminifera: a comparison of open ocean and epicontinental sea assemblages. Micropaleontology. 33:1987;264-276
67. Li L., Keller G. Maastrichtian climate, productivity and faunal turnovers in planktic foraminifera in South Atlantic DSDP Sites 525 and 21. Mar. Micropaleontol. 33:1998;55-86
68. Li L., Keller G. Abrupt deep-sea warming at the end of the cretaceous. Geology. 26:1998;995-999
69. Li L., Keller G., Adatte T., Stinnesbeck W. Late cretaceous sea level changes in Tunisia: a multi-disciplinary approach. J. Geol. Soc. (Lond.). 157:2000;447-458
70. Lipps J.H. Ecology and paleoecology of planktic foraminifera. Foraminiferal Ecology and Paleoecology. SEPM Short Course. vol. 6:1979;62-104. Houston, TX
71. Liu G., Olsson R.K. Evolutionary radiation of microperforate planktic foraminifera following the K/T mass extinction event. J. Foraminiferal Res. 22:1992;328-346
72. Loeblich A.R. Jr. Coiling in the Heterohelicidae. Contrib. Cushman. Lab. Foraminifer. Res. 2:1951;106-110
73. Loeblich A.R. Jr., Tappan H. Woodringina, a new foraminiferal genus (Heterohelicidae) from the Paleocene of Alabama. J. Wash. Acad. Sci. 47:1957;39-40
74. Lopez Oliva J.G., Keller G. Age and stratigraphy of near-K/T boundary clastic deposits in northeastern Mexico. Catastrophes in Earth History. Special Paper Geological Society of America. vol. 307:1996;227-242. Boulder, CO
75. Luciani V. Planktonic foraminiferal turnover across the Cretaceous-Tertiary boundary in the Vajont valley (Southern Alps, northern Italy). Cretac. Res. 18:1997;799-821
76. Luger P. Maastrichtian to Paleocene facies evolution and cretaceous/tertiary boundary in middle and southern Egypt. Rev. Esp. Micropaleontol. 30:1988;37-49
77. MacLeod N., Keller G. How complete are Cretaceous/Tertiary boundary sections? Geol. Soc. Amer. Bull. 103:1991;1439-1457
78. MacLeod N., Ortiz N., Fefferman N., Clyde W., Schulter C., MacLean J. Phenotypic response of foraminifera to episodes of global environmental change. Culver S.J., Rawson P. Biotic Response to Global Environmental Change: The Last 145 Million Years. 2000;51-78 Cambridge University Press, Cambridge
79. Magaritz M., Benjamini C., Keller G., Moshkovitz S. Early diagenetic isotopic signal at the Cretaceous/Tertiary boundary, Israel. Palaeogeogr. Palaeoclimatol. Palaeoecol. 91:1992;291-304
80. McGowran B. Foraminifera. von der Borch C.C., Slater J.G., et al. Initial Reports of the Deep Sea Drilling Project. vol. 22:1974;609-628 U.S. Government Printing Office, Washington
81. Meudt, M., Berner, Z., Kramar, U., Stüben, D., Keller, G., 2003. Hydrothermal influence on benthic foraminiferal geochemistry: evidence from DSDP-Site 216, Ninetyeast Ridge, Indian Ocean. Mantle Plumes: physical processes, chemical signatures, biological effects, Meeting, 10-11 Sept., Cardiff University/National Museum and Gallery, Cardiff. Abstract.
82. Michel H.V., Asaro F., Alvarez W. Geochemical study of the Cretaceous-Tertiary boundary region at hole 752B. Proc. Ocean Drill. Program Sci. Results. 121:1991;415-422
83. Moore D.G., Curray J.R., Raitt R.W., Emmel F.J. Stratigraphic-seismic sections correlations and implications to Bengal fan history. von der Borch C.C., Slater J.G., et al. Initial Reports of the Deep Sea Drilling Project. vol. 22:1974;403-412 U.S. Government Printing Office, Washington
84. Morozova V.G. Danian-Montian planktonic foraminifera of the southern USSR. Paleontol. Z. 2:1961;8-19
85. Norris R.D., Firth J., Blusztajn J., Ravizza G. Mass failure of the North Atlantic margin triggered by the Cretaceous-Paleogene bolide impact. Geology. 28:2000;1119-1122
86. Oberhänsli H., Keller G., Adatte T., Pardo A. Environmentally and diagenetically controlled changes across the K/T transition at Koshak, Mangyshlak (Kazakstan). Bull. Soc. Geol. Fr. 169(4):1998;493-501
87. Olsson R.K. Foraminifera of latest cretaceous and earliest tertiary age in the New Jersey coastal plain. J. Paleontol. 34:1960;157-188
88. Pardo A. Planktic foraminiferal turnovers across the K-T and P-E transitions in the northern Tethys realm. Anubar Ediciones. 1999;. Zaragoza; 177 pp.
89. Pardo A., Ortiz N., Keller G. Latest Maastrichtian and K/T boundary foraminiferal turnover and environmental changes at Agost, Spain. McLeod N., Keller G. Biotic and Environmental Events across the Cretaceous/Tertiary Boundary. 1996;139-171 Norton Press, New York
90. Pardo A., Adatte T., Keller G., Oberhänsli H. Paleoenvironmental changes across the K-T transition in Koshak (Kazakstan) based on planktic foraminifera and clay minerals. Palaeogeogr. Palaeoclimat. Palaeoecol. 154:1999;247-273
91. Rögle F., von Salis K., Preisinger A., Aslanian S., Summesberger H. Stratigraphy across the Cretaceous/Paleogene boundary near Bjala, Bulgaria. Bull. Cent. Rech. Explor. Prod. Elf-Aquitaine, Mem. 16:1996;673-683
92. Shackleton N.J., Hall M.A., Boersma A. Oxygen and carbon isotope data from Leg 74 foraminifers. Initial Rep. Deep Sea Drill. Proj. 74:1994;599-612
93. Sharpton V.L., Dalrymple G.B., Marin L.E., Ryder G., Schuraytz B.C., Urrutia-Fucugauchi J. New links between the Chicxulub impact structure and the Cretaceous/Tertiary boundary. Nature. 359:1992;819-820
94. Schmitz B., Keller G., Stenvall O. Stable isotope and foraminiferal changes across the Cretaceous-Tertiary boundary at Stevns Klint, Denmark: arguments for long-term oceanic instability before and after bolide impact. Palaeogeogr. Palaeoclimatol. Palaeoecol. 96:1992;233-260
95. Smit J. The global stratigraphy of the Cretaceous-Tertiary boundary impact ejecta. Annu. Rev. Earth Planet. Sci. 27:1999;75-113
96. Smit J., Montanari A., Swinburne N.H.M., Alvarez W., Hildebrand A., Margolis S.V., Claeys P., Lowrie W., Asaro F. Tektite bearing deep-water clastic unit at the Cretaceous-Tertiary boundary in northeastern Mexico. Geology. 20:1992;99-103
97. Speijer R.P., van der Zwaan G.J. Extinction and recovery patterns in benthic foraminiferal paleocommunities across the Cretaceous/Paleogene and Paleocene/Eocene boundaries. Geol. Ultraiectina. 124:1994;19-64
98. Speijer R.P., van der Zwaan G.J. Extinction and survivorship of southern Tethyan benthic foraminifera across the Cretaceous/Tertiary boundary. Hart M.B. Biotic Recovery from Mass Extinction Events. Geol. Soc. Spec. Publ. vol. 102:1996;245-258
99. Stenestad E. Three new species of Heterohelix Ehrenberg from the upper Senonian of Denmark. Medd. Dan. Geol. Foren. 18:1968;64-70
100. Stinnesbeck W., Keller G., de la Cruz J., de Leon C., MacLeod N., Whittaker J.E. The Cretaceous-Tertiary transition in Guatemala: limestone breccia deposits from the South Peten basin. Geol. Rundsch. 86:1997;686-709
101. Stinnesbeck W., Keller G., Schulte P., Stueben D., Berner Z., Kramar U., Lopez-Oliva J.G. The Cretaceous-Tertiary (K/T) boundary transition at Coxquihui, State of Veracruz, Mexico: evidence for an early Danian impact event? J. South Am. Res. 15:2002;497-509
102. Stueben D., Kramar U., Berner Z., Eckhardt J.D., Stinnesbeck W., Keller G., Adatte T., Heide K. Two anomalies of platinum group elements above the Cretaceous-Tertiary boundary at Beloc, Haiti: geochemical context and consequences for the impact scenario. Spec. Pap.-Geol. Soc. Am. 356:2002;163-188
103. Tantawy A.A.A. Calcareous nannofossil biostratigraphy and paleoecology of the Cretaceous-Tertiary transition in the western desert of Egypt. Mar. Micropaleoentol. 47:2003;323-356
104. Thomas E. Late Cretaceous through Neogene deep sea benthic foraminifera (Maud Rise Weddell Sea, Antarctica). Proc. Ocean Drill. Program. 113:1990;571-594
105. Thomas E. Late Cretaceous-early Eocene mass extinctions in the deep sea. Sharpton V.L., Ward P.D. Global Catastrophes in Earth History, An Interdisciplinary Conference on Impacts, Volcanism and Mass Mortality. Spec. Pap.-Geol. Soc. Am. vol. 247:1990;481-495
106. Thompson G., Bryan W.B., Frey F.A., Sung A.C. Petrology and geochemistry of basalts and related rocks from sites 214, 215, 217 DSDP Leg 22, Indian Ocean. von der Borch C.C., Slater J.G., et al. Initial Reports of the Deep Sea Drilling Project. vol. 22:1974;459-468 U.S. Government Printing Office, Washington
107. Yancey T.E. Stratigraphy and depositional environments of the Cretaceous/Tertiary boundary complex and basal section. Brazos River, Texas. Trans.-Gulf Coast Assoc. Geol. Soc. 46:1996;433-442
108. Voloshina A.M. Some new species of upper Cretaceous Foraminifera from the Volhyn-Podol Platform. Paleontol. Sb. (L'vov). 1:1961;71-81
109. Widmark J.G.V., Malmgren B. Benthic foraminiferal changes across the Cretaceous-Tertiary boundary in the deep sea: DSDP Sites 525, 527, and 465. J. Foraminiferal Res. 22:1992;81-113
110. Zachos J.C., Arthur M.A., Dean W.E. Geochemical evidence for suppression of pelagic marine productivity at the Cretaceous/Tertiary boundary. Nature. 337:1989;61-67
111. Zachos J.C., Aubry M.P., Berggren W.A., Ehrendorfer T., Heider F., Lohmann K.C. Chemobiostratigraphy of the Cretaceous/Paleocene boundary at Site 750, Southern Kerguelen PlateauWise. Proc. Ocean Drill. Program Sci. Results. 120:1992;961-977