Description of the Scarp Segments
The northern segment has a scarp slope of approximately 3º with a significant amount
of debris on the slope. This debris had a maximum diameter of approximately 20
centimeters, and slope is sparsely vegetated with grasses and other brush cover.
The scarp appears to be affected by the presence of drainage streams, but not
significantly.
The southern segment is overall very similar to the northern segment, but in detail
some differences appear. The slope of this segment is slightly more gentle, and
appears to contain more debris of a larger size (maximum diameter of about 40 cm).
The southern segment is also much more vegetated (possibly due to land use), and
seems to be more affected by the presence of streams — the scarp is more rounded off
and it turns up stream. These observations give the southern segment an older appearance
than the northern segment.
Map
References
Hanks, Thomas C. (1997) The age of scarplike landforms from diffusion-equation analysis. Quaternary Geochronology:
Applications in Quaternary Geology and Paleoseismology.
Pearthree, Philip A. and Calvo, Susanna S. (1987) The Santa Rita Fault Zone: Evidence for large magnitude earthquakes
with very long recurrence intervals, Basin and Range Province of Southeastern Arizona. Bulletin of the
Seismological Society of America, Vol. 77, No. 1, pp. 97-116.
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