Publication Date:
2017-11-03
Description:
Two discontinuous tephra layers were discovered at Burney Spring Mountain, northern California.
Stratigraphic relationships suggest that they are two distinct primary fall tephras. The geochemistries of these
tephras from electron probe microanalysis were compared with those of known layers found in the area to test for
potential correlations, using clustering analysis on geochemistry. In most cases, geochemical data from a tephra
layer can be assigned to a single cluster, but in some cases the analyses are spread over several clusters. This
spreading is a direct result of mixing and reworking of several tephra layers. The mixing, in turn, appears to be
related to the influence of wind in a marshy environment.
Type:
Article
,
PeerReviewed
Format:
text