On Earth, the most reliable way to measure the ages
of alluvial fans is by radiocarbon dating — but that requires organic carbon, which we haven't yet found on Mars.
«We landed in the best possible place within the landing ellipse — the bottom
of an alluvial fan.»
«LA is not a desert,» insisted author D.J. Waldie, referring to the water table in layers
of alluvial fan underneath the metropolis, but you'd never know it.
Not exact matches
The appellation encompasses more than 6,500 acres
of prime vineyards, planted on the elevated terraces and
alluvial fans of the Santa Lucia mountain range.
Situated along the proposed southern dispersal route, the Al Sibetah
alluvial fan sequence provides a unique and sensitive record
of landscape change in southeast Arabia.
An
alluvial fan is a triangle - shaped deposit
of gravel, sand, and smaller materials called alluvium.
An
alluvial fan is a pattern
of sedimentary rocks, dirt, and sand deposited by flowing water â $ «in this case, perhaps an ancient Martian river.
The restoration crew works to restore the hillside
alluvial fan that was previously depositing excessive amounts
of sediment in Redwood Creek below.