Image of the Day — Slickenlines on Dakota sandtone
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Posted: Saturday, January 25, 2025
Image taken:
07/30/2020
by: Matthew Zimmerer
©
2020
Longitude: -106.715215
Latitude: 36.542412
(WGS 84 or NAD 83)
About this image
Slickensides (aka slickenlines) form when rocks move past one another along a fault. With close observation, these features can indicate the relative motion accross the fault. It is apparent from this photograph that the this partucular minor fault was strike-slip.
Location
Rio Chama Wild and Scenic River between El Vado Lake and Abiquiu Reservoir.
Image posted: 02-06-2020