Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Rasbury, E. T. Articles by Saller, A. H. Search for Related Content GeoRef GeoRef Citation

U-Pb dates of paleosols: Constraints on late Paleozoic cycle durations and boundary ages

¹ Department of Geosciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100
² Department of Geology, University of Kansas, Lawrence, Kansas 66045
³ Unocal Corporation, Sugar Land, Texas 77210-4551

U-Pb ages of paleosol samples from cyclothemic sections in the Sacramento Mountains of New Mexico and the Permian basin of West Texas bracket the Pennsylvanian-Permian and Carboniferous-Permian boundaries. Linear interpolation and extrapolation to boundaries are accomplished by using cyclothems as periodic subdivisions. The Carboniferous-Permian boundary is 301 ± 2 Ma (2 ), the Pennsylvanian-Permian boundary is 302 ± 2.4 (2 ), and the Missourian-Virgilian boundary is 307 ± 3 Ma (2 ). These ages are within the uncertainties of recent estimates for the boundaries but are significantly more precise. The average cycle duration for this Upper Pennsylvanian and Lower Permian interval is 143 ± 64 ka (2 ), within the uncertainty of the 100 k.y. cycle that dominated Pleistocene sea-level history. This new estimate, which is much shorter than those published previously, suggests that the Pennsylvanian and Early Permian cyclothems may have been driven in a manner similar to that which caused glacio-eustatic cycles of the Pleistocene.

This article has been cited by other articles:

				G. J. Retallack Greenhouse crises of the past 300 million years Geological Society of America Bulletin, September 1, 2009; 121(9-10): 1441 - 1455. [Abstract] [Full Text] [PDF]

				S. Leleu, A. J. Hartley, and B. P.J. Williams Large-Scale Alluvial Architecture and Correlation in a Triassic Pebbly Braided River System, Lower Wolfville Formation (Fundy Basin, Nova Scotia, Canada) Journal of Sedimentary Research, May 1, 2009; 79(5): 265 - 286. [Abstract] [Full Text] [PDF]

				E. T. Rasbury, E. H. Gierlowski-Kordesch, J. M. Cole, C. Sookdeo, G. Spataro, and J. Nienstedt Calcite cement stratigraphy of a nonpedogenic calcrete in the Triassic New Haven Arkose (Newark Supergroup) Geological Society of America Special Papers, January 1, 2006; 416(0): 203 - 221. [Abstract] [Full Text] [PDF]

				H. R. Feldman, E. K. Franseen, R.M. Joeckel, and P. H. Heckel Impact of Longer-Term Modest Climate Shifts on Architecture of High-Frequency Sequences (Cyclothems), Pennsylvanian of Midcontinent U.S.A. Journal of Sedimentary Research, May 1, 2005; 75(3): 350 - 368. [Abstract] [Full Text] [PDF]

				J. M. Cole, E. T. Rasbury, G. N. Hanson, I. P. Montanez, and V. A. Pedone Using U-Pb ages of Miocene tufa for correlation in a terrestrial succession, Barstow Formation, California Geological Society of America Bulletin, March 1, 2005; 117(3-4): 276 - 287. [Abstract] [Full Text] [PDF]

				A LATE PERMIAN CHINESE GASTROPOD SPECIES, POSSIBLY LARVAL, IN THE MIDDLE PENNSYLVANIAN OF NEW MEXICO Journal of Paleontology, February 1, 2004; 78(2): 420 - 423.

				It's All About Dating: From Nexters to Climate Change Palaios, October 1, 2003; 18(4-5): 299 - 300.

				From Cyclothems to Sequences: The Record of Eustasy and Climate on an Icehouse Epeiric Platform (Pennsylvanian-Permian, North American Midcontinent) Journal of Sedimentary Research, January 1, 2003; 73(1): 15 - 30.

				Evaluating taxonomic turnover: Pennsylvanian-Permian brachiopods and bivalves of the North American Midcontinent Paleobiology, December 1, 2001; 27(4): 646 - 668.

				Hypersaline Burial Diagenesis Delineated by Component Isotopic Analysis, Late Paleozoic Limestones, West Texas Journal of Sedimentary Research, May 1, 2001; 71(3): 372 - 379.

				D. H. Rothman From the Cover: Global biodiversity and the ancient carbon cycle PNAS, April 10, 2001; 98(8): 4305 - 4310. [Abstract] [Full Text] [PDF]

				M. L. Becker, J. M. Cole, E. T. Rasbury, V. A. Pedone, I. P. Montanez, and G. N. Hanson Cyclic variations of uranium concentrations and oxygen isotopes in tufa from the middle Miocene Barstow Formation, Mojave Desert, California Geology, February 1, 2001; 29(2): 139 - 142. [Abstract] [Full Text] [PDF]

				Relationship of Uranium to Petrography of Caliche Paleosols with Application to Precisely Dating the Time of Sedimentation Journal of Sedimentary Research, May 1, 2000; 70(3): 604 - 618.

				Diagenesis of the Lower Permian Krider Member, Southwest Kansas, U.S.A.: Fluid-Inclusion, U-Pb, and Fission-Track Evidence for Reflux Dolomitization During Latest Permian Time Journal of Sedimentary Research, May 1, 2000; 70(3): 762 - 773.