Peter Piper
Parent Material
Parent Material
What is Nate's favorite constructional landform? (Hint: it's the name of a fantastic sci-fi movie)
What is a sand dune
The type of landform (erosional or constructional) you should mark if you see residuum, bedrock, or pedisediment exposed in the pit
What is an erosional landform?
* only one landform should be marked in each pit. If the soil developed in transported materials, do not use erosional landforms.
The value/chroma requirement/rule for an albic horizon (or albic material)?
What is a value 2x the chroma
The distinctness of the lower boundary of the last horizon is not to be determined (- in box) unless it is:
what is a lithic (R) or paralithic (Cr) contact?
Horizonation for a horizon with lamellae
Bt & E, or E & Bt
The minimum thickness of material need to be to be recognized as as second parent material
What is 25 cm
The types of landforms associated with 'none' slope position
What is a nearly level till plain, outwash plain, terrace, or floodplains?
describe a Lithic Hapludalf
Double points: Which ecoregion/section is this soil most likely to be found?
What is an Alfisol (argillic horizon present) with no glossic features and with wetness features deeper than 50 cm (if present at all); Lithic (R) contact present?
Double points: What is Soils Formed in Loamy or Silty Materials and the Underlying Residuum from Bedrock?
Name two of the four properties used for estimating wastewater loading rate.
Nerd point: Name all four.
What is structure shape, structure grade, moist consistence, and texture.
Typical horizonation for a glossic horizon (containing clay films and 1.2x clay as the horizon above)
What is E/Bt (or Bt/E)?
A difference between outwash and glaciofluvial parent materials
What is... 1) Glaciofluvial may contain boulders and large gravels in addition to fines. Outwash is generally restricted to fines. 2) Glaciofluvial form besides, below or downstream from ice. Outwash is a periglacial material (forms in a glacier influenced env., not necessarily on or next to the glacier)
How is this different than till?
Describe the difference in soil features between a floodplain, stream terrace, outwash plain, loess plain, lake plain, and till plain
Floodplain - land bordering an active stream, alluvium parent material, fine textured soil
Stream terrace - landform in a stream or river valley, below the upland and above the current floodplain. typically deposited by glacial meltwater, parent materials are typically glacial outwash, alluvium or lacustrine deposit. some capped with loess
Outwash plain - low-relief area, composed of glacio-fluvial debris spread away from the glacier margins by meltwaters that were not confined to a river valley. topography can be smooth or very irregular. deepest parent material is glaciofluvial (outwash) and landform is NOT a kame/esker.
Loess plain - landforms consisting of windblown silt deposits. Loess is the deepest parent material described
Lake plain - level landform located on the bed of a former lake, underlain by stratified lacustrine sediments. deepest parent material is lacustrine.
Till plain - extensive flat to undulating area underlain by till. Till plain includes ground, recessional, end, or terminal moraines, and drumlins. Eolion, glaciolacustrine, and/or glaciofluvial sediments. If outwash and till are observed in the same profile, and the landscape is clearly a moraine, the correct landform would be till plain/drumlin/moraine, even if outwash is the bottom parent material
What percent of a horizon needs to be albic material to classify as glossic? AND what is the minimum thickness?
What is a cool 85% and 5 cm, ahhhh
How should you mark a scorecard box that doesn't contain any information?
What is mark it with a dash (--) since blanks will NOT be accepted?
The typical soil structure of dense till (Cd)
A landform on which would you expect glaciofluvial material
Nerd point: Name two
What is a kame or an esker?
Label this diagram with erosional landforms (A - D)
Nerd point: What kind of parent material might you expect at E?
A - Interfluve
B - Nose slope
C - Side slope
D - Head slope
E - Alluvium (likely)
Is it possssible to mark Glossic, Albic, and Argillic at the same time? Why or why not?
Nerd point: Which would you mark if you observed a Bt/E and no underlaying Bt's?
Yes?
E/Bt no Bt = Glossic
Bt/E no Bt = Glossic and Argillic
E/Bt or Bt/E and Bt = Glossic and Argillic
The depth of the material that you evaluate the loading rate
What is 75 cm?
Describe as much as you can about this horizon: Bhsm
what is a spodic diagnostic subsurface horizon, spodic materials (humus, sesquioxides), materials are cemented. pH has to be 5.9 or less. family particle size class of sandy, sandy-skeletal, or coarse-loamy?
Describe two pieces of evidence that suggest alluvial parent material.
What is sorted materials (e.g. layers of sorted materials OR lateral variations across the floodplain) and rounded coarse fragments?
The two (lowest) parent materials you will see with erosional landforms.
Nerd point: Name a third non-parent material material
What is pedisediment, residuum, or *bedrock*
What is the difference between an Epiaquoll and an Endoaquoll?
Epiaquoll is top-down saturation (gleyed over non-gleyed horizons), endoaquoll is bottom-up?
What taxonomic system, simplified or keys, is being used for the contest?
What is... either is accepted in the case of differing classifications
The soil features that are components of the potato suitability index