<p><font size=3>All,</font>
<p><font size=3>Below is an AGU abstract contributed by Elizabeth Barnett
on the Boulder Creek fault (Kendall Scarp); she also says that she'd provide
figures of location maps, trench logs, and LiDAR if they'd be helpful.
Please let me know, or send the email to the listserve (pnw-earthquake-hazards@geohazards.cr.usgs.gov),
if you'd like more information from her.</font>
<p><font size=3>Thanks Elizabeth and Happy New Year All!</font>
<p><font size=3>Joan</font>
<p>
<p><font size=3>Paleoseismic trenching studies document an active east-west
trending fault</font>
<p><font size=3>located at the northeast margin of the Puget Lowland, approximately
35 km</font>
<p><font size=3>northeast of Bellingham, Washington. Thrust faulting of
Late Pleistocene glacial</font>
<p><font size=3>outwash sediments over Holocene soils produced the south-side
up Kendall scarp,</font>
<p><font size=3>initially revealed by LiDAR surveys of the North Fork of
the Nooksack River. Trenching</font>
<p><font size=3>and coring of adjacent wetlands suggest a minimum of one
folding event and two</font>
<p><font size=3>surface-rupturing earthquakes along the Kendall scarp fault
within the latter half of</font>
<p><font size=3>the Holocene with combined vertical offset of at least
two meters. Dated organic</font>
<p><font size=3>material from buried soils within the wetlands and trenches
suggest possible dates</font>
<p><font size=3>of between ~7700-3200 yrs BP for the folding event and
~3200 yr BP and ~1000 yr BP</font>
<p><font size=3>for the two surface-rupture events. Mazama ash from the
base of the wetlands cores</font>
<p><font size=3>provides a maximum age for all faulting events recorded
in the trenches and</font>
<p><font size=3>wetlands of ~7700 yr BP.</font>
<p>
<br><font size=2 face="sans-serif">Joan Gomberg<br>
US Geological Survey<br>
University of Washington<br>
Dept of Earth and Space Sciences, Box 351310<br>
Seattle, Washington 98195-1310<br>
206-616-5581(office) <br>
206-553-8350 (fax)<br>
206-941-7498 (cell)<br>
gomberg@usgs.gov</font>