Geomorphology of Minnesota

Table Name Field Name Begin Column Definition Valid Values Description
LANDFNE2.PAT GEOMORPH 25 16,16,c Too Many to list. See other codes for validity. This is the full landform code which is a combination of Glacial Association, Association Phase, Topographic Expression, Sedimentary Association and any qualifiers
GEO_ASSOC 41 1,1,c Geomorphic Association
A Lake Agassiz
B Glacial Lake Minnesota
C Scoured Bedrock Uplands
D Des Moines Lobe
E Obscure glacial landscape, no glacial landforms present
F Fluvial
G Grantsburg Lobe
H Lake Duluth
I Iowan Erosion Surface
J Lake and pond sediment
K Koochiching Lobe
L St. Louis Lobe
M Upper Mississippi river
N River Warren
O Organic Deposits
P Pre-Wisconsinan Till Plains
Q Glacial Lake Benson
R Rainy Lobe
S Superior Lobe
T Dissected Bedrock Terranes
U Lake Upham/Aitkin
V Red River Lobe
W Wadena Lobe
X Mines
Y Water
_ Undifferentiated
PHASE 42 2,2,c Glacial phase, ice margin association or age.
Al Altamont
An Ann
Ar Archean
Be Bemis Phase
Bs Big Stone
Ca Campbell Phase
Cu Culver
De Dent
Du Duluth
Er Erskine
Fz Frazee
Gu Guthrie
He Hewitt
Hi Highland
Ho Holocene
Hr Herman Phase
It Itasca
Kn Knife
Ko Koochiching Phase
Mi Milnor Phase
Ml Mille Lacs
Ne Nemadji
Ni Nickerson
No Norcross Phase
Ou Outing
Pc Pine City
Pr Proterozoic
Sr Split Rock
St St. Croix
Ti Tintah Phase
Ve Verdi
Wi Wisconsonian
Wp Pre-Wisonsonian
__ Undifferentiated
TOPO 44 1,1,C General Topographic Expression
1 Level. Includes areas of little relief relative to adjacent topography such as lake and outwash plain
2 Rolling to Undulating. Areas exhibiting variable relief over broad reaches including till plains and drumlinized terrain.
3 Hummocky. Includes areas of highly variable relief relative to adjacent topography. Typically supraglacial complexes, esker complexes and end moraines (kame-kettle topo).
4 Steep. Used primarily for glacially-scoured or stream-dissected bedrock terranes.
5 Inclined slopes intermediate between rolling and steep; predominantly sloping in one direction; no undrained depressions
_ Undifferentiated
SED_ASSOC 45 1,1,C Sedimentary Association / Rock Type.
A Alluvium
B Bedrock dominated
C Outlets
D Sedimentary
G Igneous
I Ice Contact
L Lacustrine
M Metamorphic
O Outwash
P Peat
R Terrace
S Supraglacial Drift Complex
T Till Plain
_ Undifferentiated
QUAL 46 10,10,C Additional Information or Qualifiers.
A landform may have more than one qualifier. All qualifiers are stored in this item and multiple qualifiers are separated by commas. All qualifiers are lower case.
ag Anorthositic Gabbro Troctolite
ar Argillite
be Beach or Strandline. Elongate form representing past lake stage.
fe Banded Iron Formation
ch Outwash Channel or Outlet Channel
co collapsed or palimpsest outwash
di Disintigration ridge
dw Deep Water Facies Offshore deep water lake clays.
dr Drumlin or Flutes
dc Duluth Complex
es Esker
eg Ely Greenstone
fp floodplain
fn Fan. Fan -shaped features including glacial outwash fans, alluvial fans, some deltas.
gr Granite
gi Giants Range Granite
gv gravel
ic Predominately ice-contact deposits
iw Ice-Walled Lake Plains Abundant
ka Kame
ks karst
lm Lake Modified and/or wave-planed till. Reworking but usually not eliminating original landform characteristics.
lo Loess mantled sediment
ma Mantled by a veneer of younger drift
ms Metasedimentary
mv Metavolcanic
no Non-glacial source (terrace)
ns North Shore Volcanic Group
od outwash derived (terrace)
po Predominately Outwash
pa Peat Deposits Abundant
rb Raised Bog
rl river channel
ro Rove Formation
st stream washed
sw Shallow Water Facies. Near shore lake sands.
sg Saganaga Granite
th Thrust
tm Till Mantled
tr Trommald Formation
tv Tunnel Valley
vg Vermilion Granite
em Eolian Modification (windblown dunes)
vl Unknown (currently under investigation)
SOURCE 56 1,1,C Field that store information on the party responsible for delineating and/or assigining attributes to the feature.
D University Minnesota-Duluth (UMD)
M Minnesota Gelogical Survey (MGS)
R Minnesota Department of Natural Resources (DNR)
LANDFNE2.AAT
LINE_CODE 33 2,2,I This item contains values designed to store the original values as digitized in Autocad. As Autocad does not support topology or attributing, codes were assigned to linework to help identify what types of landforms the polygon features represented.
20 Beach deposit arc that is part of a polygon border
21 Beach deposit arc that is a free standing arc
30 Drainage Channel arc that is part of a polygon border
31 Drainage Channel arc that is free standing
45 Esker arc that is part of a polygon border
50 Geomorphic Contact Inferred
60 Geomorphic Contact
70 Ice Contact Face arcs that arc part of a polygon border
71 Ice Contact Face arc that are free standing
80 Lineation arcs that are free standing
85 Peat arcs that are part of a valid polygon border
86 Raised Bog arcs that are part of a valid polygon border
90 State Boundary
92 Map sheet boundary caused by interpreted differences
DESC 35 32,32,c This item stores descriptions of line values based on a collapsed classification of the LINE_CODE items. LINE_CODES that were included in each of the classes are indicated in parenthesis.
GEOMORPHIC CONTACT Geomorphic contact evident on source products (20,30,45,60,70,85,86)
GEOMORPHIC CONTACT INFERRED Geomorphic contact inferred, gradational, or approximately located (50)
ICE CONTACT FACE Distinct slope or scarp deposited in contact with ice and formed by meltout of ice and subsequent collapse. Steep slope faces ice. (71)
LINEATION Prominent lineation or directional trend (convex or concave) identifiable on aerial photographs or topograhic maps that are not associated with geomorphic contacts (21,80,83)
DRUMLIN Lines indicate location and are crudely proportional to shape (length and width) and trend of drumlin. (40)
STATE BOUNDARY State Boundary (90)
TEXT LEADER Leader line to annotation (91)
SOURCE 67 1,1,C Field that store information on the party responsible for delineating and/or assigining attributes to the feature.
D University Minnesota-Duluth (UMD)
M Minnesota Gelogical Survey (MGS)
R Minnesota Department of Natural Resources (DNR)
DNR Database Description Form for including data in the DNR GIS Data Dictionary
Feel free to step outside of lines when providing description information—Supplementary documentation always welcome
Form Version 1.0 5 12/11/96