Geomorphic responses as indicators of paleoclimate and climatic change

Technical Report · Wed Jul 01 04:00:00 EDT 1998

DOI:https://doi.org/10.2172/638173· OSTI ID:638173

There is little doubt that climate is an important parameter affecting the shape of the Earth`s surface. However absolute observance to the principles of climatic geomorphology leads us away from the study of processes because the analyses passes directly from climate to landscape form. An alternative approach is to examine the effects of climate change on the nature of the processes operating in the near surface environment. Utilizing this methodology, the climate-process relations take on greater significance, and lead to an understanding of the response(s) of geomorphic systems to shifts in climatic regime. Given that geomorphic systems respond to changes in climate regime, it should also be true that delineation of the changes in the types, rates, and magnitudes of geomorphic processes will provide insights into the timing and nature of past shifts in climate, particularly effective moisture. It is this approach that has been utilized herein. Specifically, geomorphic responses in eolian, lacustrine, and fluvial systems that have resulted in erosional and depositional events have been documented for several sites in Nevada (Figure 1), and used to infer the timing and character of climatic change in the Basin and Range Physiographic Province. The results and conclusions of the specific studies are provided.

• Research Organization: Univ. of Nevada, Desert Research Inst., Reno, NV (United States)
• Sponsoring Organization: USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
• DOE Contract Number: FC08-93NV11417
• OSTI ID: 638173
• Report Number(s): DOE/NV/11417--T5; ON: DE98007079
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ARID LANDS
CLIMATIC CHANGE
GEOMORPHOLOGY
NEVADA
PALEOCLIMATOLOGY
REGIONAL ANALYSIS