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Publication Extents

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Selected caves and lava-tube systems in and near Lava Beds National Monument, California
Aaron Clement Waters, Julie M. Donnelly-Nolan, Bruce W. Rogers
1990, Bulletin 1673
Lava Beds National Monument (fig. 1) lies on the north slope of the huge Medicine Lake shield (fig. 2), a complex volcanic edifice of greater volume than the steep-sided Mount Shasta volcanic cone, which towers as a snowclad land mark 40 mi southwest of the monument (fig. 3). Much of the...
Environmental changes in the Tule Lake basin, Siskiyou and Modoc Counties, California, from 3 to 2 million years before present
David P. Adam, J. Platt Bradbury, Hugh J. Rieck, Andrei M. Sarna-Wojcicki
1990, Bulletin 1933
Pollen and diatom analyses of a core from the town of Tulelake, Siskiyou County, California, for the period between 3 and 2 Ma reveal a paleoclimatic and paleolimnologic sequence recording a long, warm time interval that lasted from about 2.9 to 2.6 Ma and had a short, cooler interval within...