|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
1 Earth Science Department, Rice University, 6100 Main Street, Houston, Texas 77005; present address: PanTerra Geoconsultants B.V., Weversbaan 1-3, 2352 BZ Leiderdorp, Netherlands; g.mallarino{at}panterra.nl
2 ExxonMobil Exploration Co., Houston, Texas; rick.t.beaubouef{at}exxonmobil.com
3 Earth Science Department, Rice University, 6100 Main Street, Houston, Texas 77005; andre{at}rice.edu
4 Hydrocarbon Systems Resources Stratigraphy Core Group, ExxonMobil Exploration Co., Houston, Texas; vitor.abreu{at}exxonmobil.com
5 Laboratoire des Sciences du Climat et de l'Environnement, Institut Universitaire de France, Université Versailles–St. Quentin, Unité mixte CEA-CNRS, Av de la Terrasse, Domaine du CNRS F91198 GifsurYvett, France; Labeyrie{at}lsce.cnrs-gif.fr
Gianni Mallarino received his B.S. degree and M.S. degree equivalent from the University of Palermo and his Ph.D. from the University of Naples. His Ph.D. focused on Jurassic drowned carbonate platforms. After that, Gianni spent 2 years at Rice University as a postdoctorate researcher working on late Quaternary deep-water systems. Currently, he works for PanTerra, a geoconsulting company based in the Netherlands.
Rick T. Beaubouef earned a Ph.D. in geology from the University of Houston in 1992. Since then, he has worked as a geologist for ExxonMobil. He is currently the ExxonMobil stratigraphy coordinator. In this role, he is responsible for stewardship and oversight of stratigraphy-related activities in the range of exploration, development, production, research, and training programs on a global basis.
André W. Droxler received his master's degree equivalent from University of Neuchâtel (Switzerland) and pursued his Ph.D. at the Rosenstiel School of Marine and Atmospheric Science, University of Miami (Florida). Since 1987, he has been a faculty member at Rice University. His research has focused on carbonate and mixed siliciclastic-carbonate deposits on slopes and basins surrounding carbonate platforms, in terms of processes, evolution, and paleoceanographic and climatic records.
Vitor Abreu has a Ph.D. from Rice University and is currently working for ExxonMobil. Vitor is an adjunct professor at Rice University and the University of Houston and a research councilor of SEPM. He has published several papers and has given numerous talks and seminars. Vitor was the recipient of the Jules Braunstein Memorial Award (best poster presentation, 2002 AAPG Annual Meeting).
Laurent Labeyrie earned his Ph.D. from the University of Paris. His first professorship was at the University Paris Sud-Orsay, followed by the University of Versailles St. Quentin and, currently, at the Laboratoire des Sciences du Climat et de l'Environnement in Gif/Yvette, France. Laurent Labeyrie was trained as a physicist and geochemist at the University of Paris. He is currently a faculty at University of Versailles St. Quentin, where he codirects the Master School on Climate Change and Sustainable Development. His specialties are application of physics and geochemistry to paleoclimatology and paleoceanography, including both observational and modeling aspects.
This study focuses on the sedimentary fill of basin 4, the termination of the Brazos-Trinity minibasin slope system in the northwestern Gulf of Mexico. Results from multistratigraphic analyses of 15 giant piston cores provided (1) important information regarding the nature (hemipelagic versus gravity-induced mud and sand deposits) and the timing of the sedimentary fill; (2) some key chronostratigraphic constraints for the evolution of this system; and (3) strong links between well-known cycles of sea level change to clearly imaged deposits in the fill of basin 4. Gravity-flow–induced sedimentation in basin 4 occurred and increased in importance during the stepwise sea level regression that developed between 115 and 15 ka and clearly ceased just prior to the meltwater spike in the Gulf of Mexico dated at about 14 ka. The onset of gravity-induced deposition in basin 4 is dated at marine isotope stage (MIS) 5d (
115 ka). This finding implies that sandy turbidity currents reached this distal setting as a consequence of a higher frequency sea level fall within a time of general high sea level (MIS 5). An interval of hemipelagic sedimentation lasting from 90 to 45 ka illustrates cessation of gravity-induced deposits in basin 4. Turbidite sandy deposits resumed in mid-MIS 3 and increased toward MIS 2 (approximately from 30 to 15 ka). The largest proportion of reservoir-grade sandy sediment was deposited during the maximum sea level lowstand of the last glacial maximum, consistent with the prevailing view of sequence-stratigraphic models for deep-water deposition.
This article has been cited by other articles:
|
|
 |
|
  A. S. Madof, N. Christie-Blick, and M. H. Anders Stratigraphic controls on a salt-withdrawal intraslope minibasin, north-central Green Canyon, Gulf of Mexico: Implications for misinterpreting sea level change AAPG Bulletin, April 1, 2009; 93(4): 535 - 561. [Abstract] [Full Text] [PDF]
|
|
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
