IDENTIFIERS

Current Taxon Name (Soil Name): Miguel

OSD

Series Extent

User Site ID: S1993TX177008

User Pedon ID: 93TX177008

Vegetation Plot ID: S1993TX177008

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 93P0596

NCSS Pedon Lab Data NASIS Record ID - 65939

Print Date: 11/23/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 29.2388897

Std. Longitude: -97.7055588

Datum: WGS84

Location Description: From intersection of US Hwy 87 & Texas Hwy 80 in Nixon, TX; .5 mile S on TX Hwy 80 to intersection with city of Nixon 8th; .3 mile E on 8th St. until it merges with County Rd 170; 2.5 miles SE on County Rd 170 to intersection with County Rd 171; .5 mile E then .6 mile N on County Rd 171 to intersection with County Rd 534; .7 mile S on County Rd 534 to Ranch Rd; .3 mile E on Ranch Rd; 50 feet N in rangeland.

State: Texas

County: TX177—Gonzales

MLRA: 83A—Northern Rio Grande Plain

Non-MLRA Soil Survey Area: TX177—Gonzales County, Texas

7.5 Minute USGS Quad: 29097-B6—Bald Mound, Texas

PEDON

Describers Name: Edward L. Griffin

Current Taxon Kind: series

Pedon Type: representative pedon for component

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 8

Sampled As Information:

Soil Name - Miguel

Taxonomic Class - Fine, mixed Typic Paleustalfs

PSC - 18 to 68 cm.

Classificaton Date - 6/10/1993

Moisture Class - ustic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: upland

Landform: hillside

Geomorphic Component Hills: side slope

Hill Slope Profile: backslope

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: low

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 6/10/1993 (actual site observation date)

Air Photo ID: A.S. 53

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, grassland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
BOSA ECHIN2 PROSO QUST QUST	Bothriochloa saccharoides Echinocactus Prosopis Quercus stellata Quercus stellata	silver bluestem echinocactus mesquite post oak post oak	— — — — —	— — — — —	— — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
abrupt textural change argillic horizon	18—0 18—130	—- —-

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
2	—	—	88	—	180	—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 18 centimeters (0.0 to 7.1 inches); brown (7.5YR 5/3), dark brown (7.5YR 3/4), moist; fine sandy loam; weak fine and medium subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; moderately rapid permeability; 2.0 medium roots throughout and 20.0 fine roots throughout and 0.5 coarse roots throughout; 2.0 fine low-continuity tubular pores; fragments; 1 percent krotovinas (volume percent); noneffervescent, by hcl, unspecified; abrupt smooth boundary. Lab sample # 93P04225; moist when described;. few siliceous pebbles.

Bt1—18 to 40 centimeters (7.1 to 15.7 inches); reddish brown (2.5YR 4/4), dark reddish brown (2.5YR 3/4), moist; clay; 2 percent reddish brown (2.5YR 4/4) fine faint mottles; weak coarse prismatic parts to weak medium and coarse angular blocky structure; very hard, very firm, very sticky, very plastic; very slow permeability; 2.0 medium roots throughout and 15.0 fine roots throughout and 0.5 coarse roots throughout; 0.5 fine low-continuity tubular pores; 2 percent distinct pressure faces on faces of peds and 10 percent prominent dark brown (7.5YR 3/2), moist, clay films on faces of peds; fragments; 1 percent krotovinas (volume percent); noneffervescent, by hcl, unspecified; gradual smooth boundary. Lab sample # 93P04226; moist when described;. few siliceous pebbles.; continuous - phpvsfiid 176127; patchy - phpvsfiid 176128; continuous - phpvsfiid 176127; patchy - phpvsfiid 176128

Bt2—40 to 69 centimeters (15.7 to 27.2 inches); red (2.5YR 4/6), dark red (2.5YR 3/6), moist; sandy clay; 2 percent yellowish red (5YR 4/6) medium distinct and 2 percent strong brown (7.5YR 5/6) fine distinct mottles; weak very coarse prismatic parts to weak medium subangular blocky structure; very hard, firm, moderately sticky, moderately plastic; slow permeability; 0.5 medium roots between peds and 2.0 fine roots between peds and 0.5 coarse roots between peds; 0.5 fine low-continuity tubular pores; 10 percent prominent dark brown (7.5YR 3/2), moist, clay films on faces of peds; fragments; noneffervescent, by hcl, unspecified; gradual smooth boundary. Lab sample # 93P04227; moist when described;. few chert pebbles.; discontinuous - phpvsfiid 176129; discontinuous - phpvsfiid 176129

BCt1—69 to 95 centimeters (27.2 to 37.4 inches); light red (2.5YR 6/6), red (2.5YR 5/6), moist; sandy clay loam; 2 percent yellowish red (5YR 4/6) medium prominent mottles; weak very coarse prismatic parts to weak medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; moderate permeability; 0.5 medium roots between peds and 0.5 fine roots between peds and 0.5 coarse roots between peds; 0.5 fine low-continuity tubular pores; 1 percent distinct brown (10YR 4/3), moist, iron stains on faces of peds and 5 percent distinct dark brown (7.5YR 3/2), moist, clay films on horizontal faces of peds; 1 percent fine irregular iron concretions throughout; 1 percent fine spherical carbonate concretions throughout; fragments; noneffervescent, by hcl, unspecified; gradual smooth boundary. Lab sample # 93P04228; moist when described;. patchy - phpvsfiid 176131; discontinuous - phpvsfiid 176130; patchy - phpvsfiid 176131; discontinuous - phpvsfiid 176130

BCt2—95 to 130 centimeters (37.4 to 51.2 inches);, strong brown (7.5YR 5/6) and yellowish red (5YR 5/6), moist; sandy clay loam; 2 percent red (2.5YR 4/6) medium prominent mottles; weak very coarse prismatic parts to weak medium and coarse subangular blocky structure; hard, firm, slightly sticky, slightly plastic; moderate permeability; 0.5 fine roots between peds; 0.5 fine low-continuity tubular pores; 5 percent distinct dark brown (7.5YR 3/2) clay films on faces of peds and in pores and 5 percent distinct brown (10YR 4/3) iron stains on faces of peds; 1 percent fine irregular ironstone nodules between peds; 1 percent spherical very dark gray (10YR 3/1) worm casts; fragments; noneffervescent, by hcl, unspecified; clear smooth boundary. Lab sample # 93P04229; moist when described;. 1/4 thick layer of sandstone between horizons BCt2 and CB.; patchy - phpvsfiid 176133; discontinuous - phpvsfiid 176132; patchy - phpvsfiid 176133; discontinuous - phpvsfiid 176132

CB—130 to 143 centimeters (51.2 to 56.3 inches);, pale yellow (2.5Y 7/3) and strong brown (7.5YR 5/6) and yellowish red (5YR 5/8), moist; sandy clay loam; hard, firm, slightly sticky, slightly plastic; moderately slow permeability; 0.5 fine roots in cracks; 1 percent faint yellowish red (5YR 4/6) clay films on horizontal faces of peds and 5 percent distinct brown (10YR 4/3) iron stains on faces of peds; 1 percent fine irregular brown (7.5YR 4/3) iron-manganese concretions throughout; 1 percent fine irregular gypsum crystals, unspecified throughout; fragments; noneffervescent, by hcl, unspecified; abrupt smooth boundary. Lab sample # 93P04230; dry when described;. few stratified layers of weakly consolidated sandstone.; patchy - phpvsfiid 176134; patchy - phpvsfiid 176135; patchy - phpvsfiid 176134; patchy - phpvsfiid 176135

C—143 to 200 centimeters (56.3 to 78.7 inches); pale yellow (2.5Y 8/3), pale yellow (2.5Y 7/3), moist; sandy clay loam; 5 percent strong brown (7.5YR 5/8) medium distinct mottles; hard, friable, slightly sticky, slightly plastic; moderately slow permeability; 0.5 fine roots in cracks; 2 percent prominent brown (10YR 4/3) iron stains on upper surfaces of peds or rocks; 1 percent fine irregular brown (7.5YR 4/3) iron-manganese concretions throughout; 1 percent fine irregular gypsum crystals, unspecified throughout; fragments; noneffervescent, by hcl, unspecified. Lab sample # 93P04231; dry when described;. few stratified layers of weakly consolidated sandstone.; discontinuous - phpvsfiid 176136; discontinuous - phpvsfiid 176136