Coastal & Marine Geology InfoBank
Our Mapping Systems
The USGS and Science Education
USGS Fact Sheets
ground penetrating radar
Comment: 11:49 - 12:27 (00:38)
Source: Annenberg/CPB Resources - Earth Revealed - 17. Sedimentary Rocks: The Key to Past Environments
Keywords: "Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", deposition, "depositional environment", erosion, transportation
Our transcription: The deposition of sediment is recorded in the rock record as "sedimentary structures."
Sedimentary structures are useful to us because they can allow us to reconstruct the environments of deposition of the sediments, and hence that's where the sedimentary structures are formed.
They're not formed during erosion; they're not formed during transportation; but during deposition.
So the sedimentary structures, and there's a very wide variety of sedimentary structures, are indicative of a given site of deposition.
Geology School Keywords