Soil Series Atlas

Seitz soil series

Clayey-skeletal, smectitic Ustic Glossocryalfs

050100150cm1 ft2 ft3 ft4 ft5 ftOiOrganic layer · slightly decomposed0–5 cm · 0–2 inOeOrganic layer · moderately decomposed5–10 cm · 2–4 inATopsoil10–15 cm · 4–6 inELeached layer15–33 cm · 6–13 inE/BMixed leached layer and subsoil33–46 cm · 13–18 inBt1Subsoil · clay build-up46–81 cm · 18–32 inBt2Subsoil · clay build-up81–91 cm · 32–36 inCParent material91–163 cm · 36–64 in050100150cmOiOrganic layer ·slightly decomposed0–5 cm · 0–2 inOeOrganic layer ·moderately decomposed5–10 cm · 2–4 inATopsoil10–15 cm · 4–6 inELeached layer15–33 cm · 6–13 inE/BMixed leached layer andsubsoil33–46 cm · 13–18 inBt1Subsoil · clay build-up46–81 cm · 18–32 inBt2Subsoil · clay build-up81–91 cm · 32–36 inCParent material91–163 cm · 36–64 in
Typical pedon, to scale: 163 cm (64 in), 8 horizons.

Alfisols — moderately leached soils with a clay-enriched subsoil

Nationally Seitz is a small series: 391,313 acres, 791st of 24,791 by area. It is the only series in the atlas that belongs to the great group Glossocryalfs. It is the only atlas series whose parent material includes basalt/lava. Every mapped acre is in Colorado. It is the state soil of Colorado.

Depth
Very deep
Drainage
Well drained
Water movement
Slow

Compare with another seriesSimilar series in the finder

Where Seitz is mapped

391,313 acres in 13 soil survey areas, from current SSURGO data.

AlabamaArizonaColorado: 391,313 acresFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaNorth DakotaOklahomaPennsylvaniaSouth DakotaTexasWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaIowaKentuckyMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode Island

Share of all Seitz acres

  1. Colorado100%
  • Rank in the state · share of its mapped soil
  • Colorado 21st of 1,609 · 0.79%

In the field

Drainage

Well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Permeability

Slow

SlowFast
Parent material
Colluvium, slope alluvium, igneous/metamorphic rock, sandstone, shale, basalt/lava
Landform
Hills, ridges/interfluves, valleys/basins, mountains
Type location
Colorado

How it is classified

  1. OrderAlfisols
  2. SuborderCryalfs
  3. Great groupGlossocryalfs
  4. SubgroupUstic Glossocryalfs
  5. FamilyClayey-skeletal, smectitic Ustic Glossocryalfsclayey-skeletal particle-size classsmectitic mineralogy class

Against other Alfisols

Seitz makes up 0.14% of all mapped Alfisols — the 133rd largest of 4,001 series in the order.

Solum thickness (topsoil + subsoil)

91 cm under a median of 127 cm

Depth to the subsoil

46 cm over a median of 23 cm

Depth described

163 cm over a median of 156 cm

Its relatives

1 other established series share the family “Clayey-skeletal, smectitic Ustic Glossocryalfs”

  1. Seitz391 k
  2. Vulcan44 k

Other Alfisols in this atlas

  1. Seitz163 cm · Ustic Glossocryalfs
  2. Amarillo251 cm · Aridic Paleustalfs
  3. Blount200 cm · Aeric Epiaqualfs
  4. Guyton203 cm · Typic Glossaqualfs
  5. Fayette185 cm · Typic Hapludalfs
  6. Loring165 cm · Oxyaquic Fragiudalfs

Horizon by horizon

HorizonLayerDepthThickness
OiOrganic layer: slightly decomposed0–5 cm0–2 in5 cm
OeOrganic layer: moderately decomposed5–10 cm2–4 in5 cm
ATopsoil10–15 cm4–6 in5 cm
ELeached layer15–33 cm6–13 in18 cm
E/BMixed leached layer and subsoil33–46 cm13–18 in13 cm
Bt1Subsoil: clay build-up46–81 cm18–32 in35 cm
Bt2Subsoil: clay build-up81–91 cm32–36 in10 cm
CParent material91–163 cm36–64 in72 cm

Sources: USDA–NRCS Official Series Description (revised 2010-01), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides