Compaction and grain repacking, bioturbation, as well as mineralogical changes all occur at varying degrees.
12.
Where it occurs, " Aphaenogaster " bioturbation is an important soil and landscape process.
13.
Darwin would be proud : Bioturbation, dynamic denudation, and the power of theory in science.
14.
In addition to seasonal variation of sedimentary processes and deposition, varve formation requires the absence of bioturbation.
15.
Crayfish burrow in the wet basins and ants build up the mounds, magnifying the formations through bioturbation.
16.
Shell debris ( ammonites, belemnites, nautiloids, bivalves, etc . ) and bioturbation are also present.
17.
Bioturbation was initially recognized as a pedogenic force by Charles Darwin, and remains a key term of the pedogenic lexicon.
18.
Because lamination is a fine structure, it is easily destroyed by bioturbation ( the activity of burrowing organisms ) shortly after deposition.
19.
Shaler extended Charles Darwin's work of the importance of earthworm soil bioturbation to soil formation to other animals, such as ants.
20.
Lamination therefore survives better under anoxic circumstances, or when the sedimentation rate was high and the sediment was buried before bioturbation could occur.
