Journal
QUATERNARY RESEARCH
Volume 66, Issue 2, Pages 273-287Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1016/j.yqres.2006.05.001
Keywords
paleoecology; medieval climate; Late Holocene; climate change; Long Valley volcanism; Inyo craters; forest history; paleoclimatic modeling; tree-ring; dating
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Deadwood tree stems scattered above treeline on tephra-covered slopes of Whitewing Mtn (3051 in) and San Joaquin Ridge (3122 in) show evidence of being killed in an eruption from adjacent Glass Creek Vent, Inyo Craters. Using tree-ring methods, we dated deadwood to AD 8151350 and infer from death dates that the eruption occurred in late summer AD 1350. Based on wood anatomy, we identified deadwood species as Pinus albicaulis, R monticola, P lambertiana, R contorta, R jeffreyi, and Tsuga mertensiana. Only P albicaulis grows at these elevations currently; P lambertiana is not locally native. Using contemporary distributions of the species, we modeled paleoclimate during the time of sympatry to be significantly warmer (+3.2 degrees C annual minimum temperature) and slightly drier (-24 mm annual precipitation) than present, resembling values projected for California in the next 70-100 yr. (c) 2006 University of Washington. All fights reserved.
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