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Abbravation: Quaternary Research

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Cambridge University Press

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10.1007/bf03282282

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1096-0287

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Tephrochronology of the Western Gulf of Mexico for

Authors: Karen Rabek Michael T Ledbetter Douglas F Williams
Publish Date: 1985/05
Volume: 23, Issue: 3, Pages: 403-416
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Abstract

Tephra in 31 piston cores from the western Gulf of Mexico and 7 piston cores from the equatorial Pacific were analyzed by electron microprobe Six ash layers in the western Gulf of Mexico were easily distinguished by TiO2 FeO and CaO contents and correlated by geochemistry in order to determine the distribution pattern for each ash layer Correlation by geochemistry is an easier more accurate method than biostratigraphic correlation some of the tephras were miscorrelated by biostratigraphy The six tephras were dated by geochemical identification in a piston core with oxygenisotope stratigraphy and the ages are Y5 30000 yr BP Y6 65000 yr BP Y8 84000 yr BP X2 110000 yr BP W1 136000 yr BP and W2 185000 yr BP Data from this study corroborated correlations of the Y8 tephra in the western Gulf of Mexico with the D layer in the eastern equatorial Pacific Ocean None of the other five layers in the Gulf of Mexico however were found in the Pacific Ocean The limited distribution of the Y5 Y6 X2 and W2 ash layers close to Mexico indicates possible sources in Mexico Tephra from the late Pleistocene La Primavera pumice in Mexico however does not correlate with the marine tephra

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References

citation title=Atmospherically transported volcanic glass in deep sea sediments Theoretical considerations citation author=Shaw DM citation author=Watkins ND citation author=Huang TC citation publication date=1974 citation journal title=Journal of Geophysical Research citation volume=79 citation firstpage=3087 citation lastpage=3091 citation doi=101029/JC079i021p03087

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Other Papers In This Journal:
  1. Ice-Sheet Glaciation of the Puget Lowland, Washington, during the Vashon Stade (Late Pleistocene) 1
  2. The Timing of Late Pleistocene Mammalian Extinctions in North America
  3. An Altitudinal Cline in Tropical African Grass Floras and Its Paleoecological Significance
  4. Glaciations of the West Coast Range, Tasmania
  5. Tephrochronology of Late Wisconsin Deglaciation and Holocene Glacier Fluctuations Near Glacier Peak, North Cascade Range, Washington
  6. Determining the Exposure Age of a Karst Landscape
  7. Stable Isotope Stratigraphy of a Late Last Interglacial Speleothem from Rana, Northern Norway
  8. Holocene Paleoenvironmental Change in the Kenyan Central Rift as Indicated by Micromammals from Enkapune Ya Muto Rockshelter
  9. Paleoecological Studies at Lake Patzcuaro on the West-Central Mexican Plateau and at Chalco in the Basin of Mexico 1
  10. Some Effects of Partial Recrystallisation on 14 C dating Late Pleistocene Corals and Molluscs
  11. Some Effects of Partial Recrystallisation on 14 C dating Late Pleistocene Corals and Molluscs
  12. Climate Variation and the Rise and Fall of an Andean Civilization
  13. Saharan Dust Transport and High-Latitude Glacial Climatic Variability: The Alboran Sea Record
  14. Pedogenic Gradients for Iron and Aluminum Accumulation and Phosphorus Depletion in Arctic and Alpine Soils as a Function of Time and Climate
  15. Glacial-Marine Sedimentation and Quaternary Glacial History of Marguerite Bay, Antarctic Peninsula
  16. QUA volume 31 issue 1 Cover and Front matter
  17. Paleoclimatic Significance of the Stable Isotopic Composition and Petrology of a Late Pleistocene Stalagmite from Botswana
  18. Mass Balance and Sliding Velocity of the Puget Lobe of the Cordilleran Ice Sheet During the Last Glaciation
  19. Is There Evidence for Solar Forcing of Climate in the GISP2 Oxygen Isotope Record?
  20. Plio-Pleistocene Marine-Continental Correlation using Habitat Indicators from Olduvai Gorge, Tanzania
  21. Late Weichselian Marine 14 C Reservoir Ages at the Western Coast of Norway
  22. Late-Glacial and Early Holocene Environmental and Climatic Change at Lake Tambichozero, Southeastern Russian Karelia
  23. The Late Wisconsinan Savanna Terrace in Tributaries to the Upper Mississippi River
  24. The Late Wisconsinan Savanna Terrace in Tributaries to the Upper Mississippi River
  25. Optical Dating of Holocene Dune Sands in the Ferris Dune Field, Wyoming
  26. Fire and Vegetation History from the Coastal Rain Forest of the Western Oregon Coast Range
  27. Alluvial Pollen on the North China Plain
  28. Vegetation, Climate, and Sea Level in the Past 55,000 Years, Hanjiang Delta, Southeastern China
  29. Aspartic Acid Racemization in Late Wisconsin Lake Ontario Sediments
  30. The Classic Marine Isotope Substage 5e
  31. Mire Development and Environmental Change, Barrington Tops, New South Wales, Australia
  32. Significance of Two New Pleistocene Plant Records from Western Europe
  33. Lake Tapps Tephra: An Early Pleistocene Stratigraphic Marker in the Puget Lowland, Washington
  34. Modern and Holocene Pollen Assemblages from Some Small Arctic Lakes on Somerset Island, NWT, Canada
  35. Toward the Definition of Criteria for the Recognition of Artificial Bone Alterations 1
  36. Late Weichselian and Holocene Relative Sea-level History of Bröggerhalvöya, Spitsbergen
  37. A Comparison of Radiolarian and Foraminiferal Paleoecology in the Southern Indian Ocean: New Evidence for the Interhemispheric Timing of Climatic Change
  38. Late Wisconsin Ice-Surface Profile Calculated from Esker Paths and Types, Katahdin Esker System, Maine
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