Gone With the Wind
This parent material consists of wind-blown sediments.
What is loess?
This parent material consists of relatively fine-textured, well-sorted, stratified materials deposited in lake or slack water environments.
What is lacustrine?
What is the difference between a k and a kk suffix?
A k suffix indicates accumulation of pedogenic calcium carbonate (LESS THAN 50% by volume). A kk suffix indicates the same thing, by MORE THAN 50% by volume.
Note: presence of k and kk suffixes do NOT automatically constitute calcic horizons. See thickness req, CCE req, and physical property reqs on Keys p.22.
This landform borders an active stream and is subject to inundation when the stream is at flood stage.
What is a floodplain?
Effervescence is caused by what mineral?
What are calcium carbonates?
Name a soil texture that could be associated with loess deposits.
Silt loam, loam, silty clay loam, silty clay, silt, ... sandy loam
This is sandy material deposited near the shore of a lake primarily by wave action.
What is a beach deposit?
What is the mistake in this profile naming sequence?
A - Bt - Btk1 - Btky2 - C1 - C2
Borlaug Hall (and Alderman, Hodson, Kaufert, Skok, Green, etc) are built on what glacial constructional landform?
+100 points if you can define it.
What is a kame?
A conical shaped hill - typically in a largely flat area.
True or False: you should enter a "1" in the prefix column for the first parent material you encounter.
This word refers to the action of the wind. Please spell it!
Hint: spelled slightly differently than a wind-blown parent material.
What is aeolian?
This parent material is unconsolidated and partially weathered mineral materials accumulated by disintegration of bedrock. This material has been thought to be weathered in place.
What is residuum?
What suffix is used to describe slickensides?
+100 points if you can define slickensides.
What is ss?
Slickensides are created by the swelling of clay minerals and shear failure. What is shear failure?
Name two of the five landforms under the fluvial category.
What is an alluvial fan, back swamp, floodplain, natural levee, or a stream terrance?
Name one of the reasons in the Suitability as a Roadfill Material table.
What is depth to bedrock or cemented pan; shrink swell; strength (avg 25-100cm); ponding; depth to high water table; slope; flooding (floodplain landform); frost action; or % > 8 cm stones, 0 to 40 cm?
What is one common landform found in areas with wind-blown deposited sands?
What is a dune?
What is the difference between colluvium and alluvium?
Colluvium are mixed deposits of coarse fragments and soil accumulated on and at the base of hill slopes. It's generally poorly sorted and is influenced by both gravity and water.
Alluvium are unconsolidated sediments deposited by streams in floodplains. Material stratification may or may not be obvious. Deposits can be of any age, but recent deposits likely only have SOME structure.
What are two things you can tell me about this horizon based on the name alone?
2Bt1
- there is a different parent material overlaying this horizon
- this is a subsurface horizon
- this horizon contains illuvial clay (translocated from further up in the profile)
- there is at least one more 2Bt horizon below this
- anything else?
Describe what a playa is.
Hint: another word is lakebed.
What is a level landform located on the bed of a former lake or pond and underlain by stratified lacustrine sediments.
This great group is used for mollisols with highly effervescent B horizons and precipitates.
Hint: CaCO3
What is calci?
Name one similarity and one difference between eolian deposits and loess deposits.
Similarity: both are wind blown deposits.
Difference: eolian deposits are primarily sands (fine and medium) and loess is primarily silt-sized particles.
Describe unconsolidated coastal plain sediments as a parent material.
What are materials deposited by wind and water in both marine and nonmarine environments that have not undergone compaction to the extent that they would be classified as a rock? They usually stratified sediments and can consist of any sizes.
What soil order does this profile classify as?
What is a vertisol?
These landforms are used when residuum is the deepest parent material, or when bedrock is observed or denoted at any depth on the site card.
+100 points if you can also name an example of one.
What are erosional landforms?
Examples: upland headslope, upland sideslope, upland noseslope, infterfluve/crest, or base slope
What are the three categories used in the calculation of a soil's onsite wastewater subsurface loading rate?