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Table 11.4 Relation of soil-forming factors and argillic horizons (Bockheim and Hartemink
2013
)
Area
Soil taxa
Role of soil-forming factor
Citations
Climate
Conterminous
USA
All with argillic
Argillic occurs in aquic, udic, ustic,
xeric, aridic SMRs
NRCS
Conterminous
USA
All with argillic
Argillic occurs in pergelic, cryic,
frigid, mesic, thermic,
hyperthermic STRs
NRCS
Mojave desert,
CA
Typic Haplargids
Argillic relict from moister
mid-Pleistocene climate
Eghbal and
Southard
(
1993
)
KS
Paleudolls,
Paleustolls
Argillic more developed where MAP
is 750-1,100 mm/yr than
400-500 mm/yr
Gunal and Ran-
som (
2006
)
NV
Aridic Argiustolls
Argillic forming today in aridic-udic,
high montane environment
Elliott and
Drohan (
2009
)
NM
Haplargids,
Paleargids
Prominent argillic horizons occur
only in Pleistocene-age soils
Gile and
Grossman
(
1968
)
Edwards Pla-
teau, TX
Calciustolls,
Haplustalfs
Argillic more strongly developed in
humid eastern than dry western
Rabenhorst and
Wilding
(
1986a
,
b
)
Iran
Haploxeralfs,
Haplustalfs,
Argixerolls,
Argiustolls
Some argillic horizons formed during
a time when the climate was less
arid
Khormali
et al. (
2003
)
Iran
Argids
Paleo-argillic horizon formed during
moister period
Khademi and
Mermut
(
2003
)
Iran
Hapludalfs,
Haploxeralfs,
Argixerolls
Argillic more strongly developed in
udic than xeric SMR
Khormali
et al. (
2012
)
CA, NV, AZ
Haplargids,
Paleargids
Clay maxima below modern wetting
front
Nettleton
et al. (
1975
)
Parent material
Ozarks, MO
Fragiudults
Argillic forms with lithologic
discontinuity (loess/residuum)
Aide et al. (
2006
)
Northern WI,
MI
Alfic Haplorthods,
Alfic Oxyaquic
Haplorthods
Stronger argillic with lithologic
discontinuity (outwash/till)
Bockheim (
2003
)
Pampas,
Argentina
Petrocalcic Paleudolls Argillic forms with lithologic
discontinuity (loess/tosca
(paleo-calcrete))
Blanco and
Stoops (
2007
)
France
Typic/Glossic
Hapludalfs/
Fragiudalfs
Stronger argillic with lithologic dis-
continuity (loess/bedrock); “rock
effect”
Bruckert and
Bekkary
(
1992
)
NV
Aridic Argiustolls
Modern calcarous dust inhibits
argilluviation
Elliott and
Drohan (
2009
)
NM
Haplargids,
Paleargids
Morphology of argillic influenced by
authigenic carbonate, clay con-
tent, and coarse fragment content
of parent material
Gile and
Grossman
(
1968
)
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