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Palynological Data from a 989-Ft (301-M) Core of Pliocene and Early Pleistocene Sediments from Bruneau, Idaho

U.S. Geological Survey Open-File Report 92-713
Version 1.0

By Robert S. Thompson

1992

The U.S. Geological Survey's PRISM (Pliocene Research Investigations and Synoptic Mapping) Project is conducting multi-disciplinary research on paleoclimatic conditions during the middle Pliocene, the last period of sustained warmth in Earth history. Mapped paleoclimatic data from this period will be used to validate numerical-model simulations of past climates, and will thus aid in the improvement of these models' ability to predict climates substantially different from that of today. Additionally, these data may provide insights into the nature of regional climatic patterns in a warmer-than-modern global climate and help determine the nature, amplitude, and timing of paleoclimatic variations within this warm period. In an effort to extend the geographic coverage of the PRISM data set and to increase knowledge of Pliocene paleoclimatic variations in the interior of North America, a 989-ft (301-m)-long sediment core was obtained from the Bruneau and Glenns Ferry Formations near the town of Bruneau, Idaho. This report presents basic coring data and palynological counts from this core, and some preliminary observations on their possible paleoclimatic significance.

CONTENTS

  1. README - Text file
  2. Contents - Text file
  3. Open-File Report 92-713 - Text file
  4. Original digital file [Macintosh self-extracting archive encoded using BinHex 4.0]

This work was funded by the U.S. Geological Survey Global Change and Climate History Program and the U.S. Department of Energy (Agreement No. DE-AI21-83MC20422).

This open-file report is available for purchase from:

USGS Information Services, Box 25286,
Federal Center, Denver, CO 80225
telephone: 303-202-4210; e-mail: infoservices@usgs.gov

DISCLAIMERS

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although all data and software released with this open file have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software.

U.S. Department of Interior, U.S. Geological Survey
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Last modified: 03.02.01 (krw)