Figure 11
Brokenleg Bend Exposure #1, Section 4-12N-24W, Roger
Mills County, Oklahoma. View is to the northeast. The white banded sediments at
lower right record a spring-fed perennial pond spanning the Last Glacial
Maximum. The profile is transected by an erosional unconformity that dips to the
left. Above the oxidized units associated with this event is a series of marsh
soils largely dating 11,500 to 9,000 years ago. This profile stands some 70' (21
m) in elevation above the modern canyon floor.