LAR 512 – Fall 2002

 

PROBLEM #7 – DRAINAGE & LANDSCAPE CATENAS


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Outer Banks & Pamlico Surface Region

http://www.mo14.nc.nrcs.usda.gov/Publishd%20Soil%20Surveys/hyde-cd.pdf

 

Using the above website, review the Soil Survey of Hyde County, North County and answer the following questions:

 

  1. Print a copy of Page 25, Figure 8 – Soils and Vegetation Zones of Ocracoke Island, look up the various soil series shown on the cross section, and plot on Figure 8 the depth to seasonally high water table using data from Table 18 on Page 205.  What are the major factors that determine the high water table across the island?  ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

 

 

  1. Review the Figure 3 on Page 14 in relationship to the Pocosin area between Lake Mattamuskeet and Pungo Lake, review Figure 4 on Page 15, and look up the various soil series shown on Figure 4.  What portion of the landscape has the highest high water table and why? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

 

Coastal Plain Region

http://www.mo14.nc.nrcs.usda.gov/Publishd%20Soil%20Surveys/halifax.pdf

Using the above website, review the Soil Survey of Halifax County, North County and answer the following questions:

 

3.   Review a typical coastal plain landscape setting on Figure 3 on Page 19.  What are the general changes in the depth to seasonally high water table from the floodplain to the upland and the broad upland flats on the right side of the figure? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

 


  1. Why is there a high water table in the middle of the coastal plain uplands?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

 

Piedmont Region

http://www.mo14.nc.nrcs.usda.gov/Publishd%20Soil%20Surveys/randolph.pdf

 

Using the above website, review the Soil Survey of Randolph County, North County and answer the following questions:

 

  1. Review the Figure 2 on Page 16, Figure 3 on Page 18, Figure 4 on Page 19, Figure 5 on Page 21, and Figure 6 on Page 22; review the narrative about for each of these landscape settings and their distinctive geologic, soils, relief, and drainage.  The landscape setting represents the variety of conditions across the Carolina Slate Belt portion of the piedmont region.

 

Which landscape setting goes with each of the Figures?

 

            Acid crystalline (light colored metamorphic rocks) = Figure _____

 

Argillite metamorphic sedimentary rocks (from volcanic deposition in an ancient sea) = Figure _____

 

            Felsic volcanic metamorphic rocks = Figure _____

 

Mafic intrusive metamorphic rocks; diorite and gabbro (dark colored rocks) = Figure _____

 

Volcanic epiclastic metamorphic sedimentary rocks (from volcanic deposition in close proximity to the volcano) = Figure _____

           

Which landscape setting has the highest seasonally high water table outside of the floodplain? ________________________________________________________ Why? ____________________________________________________________ ______________________________________________________________________________________________________________________________________________________________________________________________________

 

 

Piedmont Foothills and Blue Ridge Mountain Region

 

http://www.mo14.nc.nrcs.usda.gov/Publishd%20Soil%20Surveys/rutherford.pdf

 

Using the above website, review the Soil Survey of Randolph County, North County and answer the following questions:

 

  1. Review the general setting on Figure 3 on Page 14 and the landscape setting for Figure 4 on Page 18, Figure 5 on Page 23, and Figure 6 on Page 25; review the narrative about for each of these landscape settings and their distinctive geologic, soils, relief, and drainage.  The landscape setting represents the variety of conditions across the piedmont foothills and mountain region.

 

Which landscape setting goes with each of the Figures?

 

            Recent alluvium of broad floodplains = Figure _____

 

            Weathered metamorphic gneiss (various types) = Figure _____

 

            Weathered high grade metamorphic biotite gneiss = Figure _____

 

What is the landscape setting for the following general soil groups: 8, 9, 10, and 11, starting on Page 26?

 

8.      Evard-Cowee-Fannin = ________________________________________________________

 

9.      Cliffield-Evard-Cowee-Pigeonroost = ________________________________________________________

 

10.  Ashe-Edneyville-Rock outcrop-Cleveland = ________________________________________________________

 

11.  Greenlee-Tate = ________________________________________________________