U.S. Geological Survey
   U.S. Geological Survey Open-File Report 99-338

Figure 6

Figure 6.

Figure 6. Average paleoclimatic changes inferred from packrat middens in the Yucca Mountain region for four intervals of late Pleistocene time. Arrows indicate the apparent directions of change through time; n = number of assemblages. As discussed in the text, elevation apparently influences the degree of temperature and precipitation change through time, and this effect is not taken into account in this figure.

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