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Science 5 July 1996:
Vol. 273. no. 5271, pp. 97 - 100
DOI: 10.1126/science.273.5271.97
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Reports
Detrital Zircon Link Between Headwaters and Terminus of the
Upper Triassic Chinle-Dockum Paleoriver System
N. R. Riggs,
T. M. Lehman,
G. E. Gehrels,
W. R. Dickinson
New detrital-zircon geochronologic data reveal that a through-going
paleoriver connected Texas with Nevada in Late Triassic time. Sandstone
from the Upper Triassic Santa Rosa Sandstone (Dockum Group) from
northwestern Texas contains a detrital zircon suite nearly identical to
that found in western Nevada in the Upper Triassic Osobb Formation
(Auld Lang Syne Group, correlative with the Chinle Formation). The
Santa Rosa Sandstone was derived in large part from the eroded Cambrian
core of the Amarillo-Wichita uplift, as evidenced by abundant zircons
with ages of 515 to 525 million years. Other zircon grains in the
sandstone are Permian, Devonian, Proterozoic, and Archean in age and,
with the exception of the Archean grain, are also matched by the
population in the Nevada strata.
N. R. Riggs, Department of Geology, Box 4099, Northern Arizona
University, Flagstaff, AZ 86011, USA.
T. M. Lehman, Department of Geosciences, Texas Tech University,
Lubbock, TX 79409, USA.
G. E. Gehrels and W. R. Dickinson, Department of Geosciences,
University of Arizona, Tucson, AZ 85721, USA.
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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- T. F. Lawton, I. A. Bradford, F. J. Vega, G. E. Gehrels, and J. M. Amato (2009)
Geological Society of America Bulletin
121, 820-836
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- U-Pb Ages of Detrital Zircons in Relation to Paleogeography: Triassic Paleodrainage Networks and Sediment Dispersal Across Southwest Laurentia.
- W. R. Dickinson and G. E. Gehrels (2008)
Journal of Sedimentary Research
78, 745-764
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- Revisions to stratigraphic nomenclature of the Upper Triassic Chinle Group in New Mexico: New insights from geologic mapping, sedimentology, and magnetostratigraphic/paleomagnetic data.
- K. E. Zeigler, S. Kelley, and J. W. Geissman (2008)
Rocky Mountain Geology
43, 121-141
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- Pedogenic carbonate isotopes as evidence for extreme climatic events preceding the Triassic-Jurassic boundary: Implications for the biotic crisis?.
- D. M. Cleveland, L. C. Nordt, S. I. Dworkin, and S. C. Atchley (2008)
Geological Society of America Bulletin
120, 1408-1415
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- The Mojave-Sonora megashear: The hypothesis, the controversy, and the current state of knowledge.
- R. S. Molina-Garza and A. Iriondo (2007)
Geological Society of America Special Papers
422, 233-259
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- Isotopic age of the Black Forest Bed, Petrified Forest Member, Chinle Formation, Arizona: An example of dating a continental sandstone.
- N.R. Riggs, S.R. Ash, A.P. Barth, G.E. Gehrels, and J.L. Wooden (2003)
Geological Society of America Bulletin
115, 1315-1323
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- Post-Paleozoic alluvial gravel transport as evidence of continental tilting in the U.S. Cordillera.
- P. L. Heller, K. Dueker, and M. E. McMillan (2003)
Geological Society of America Bulletin
115, 1122-1132
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- Rare-earth elements in synthetic zircon: Part 2. A single-crystal X-ray study of xenotime substitution.
- R. J. Finch, J. M. Hanchar, P. W. O. Hoskin, and P. C. Burns (2001)
American Mineralogist
86, 681-689
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- Nuclear waste forms for actinides.
- R. C. Ewing (1999)
PNAS
96, 3432-3439
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