IDENTIFIERS

Current Taxon Name (Soil Name): Kirkland

OSD

Series Extent

User Site ID: S1991OK083005

User Pedon ID: 91OK083005

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 91P0876

NCSS Pedon Lab Data NASIS Record ID - 63914

Print Date: 11/11/2024

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: 35.8158340

Std. Longitude: -97.5674973

Datum: WGS84

Location Description: This site is 50 feet W of typical pedon for Kirkland series; this site is on the divide between Cottonwood Cr. and Cimarron R. drainages.

Country: US—United States

State: Oklahoma

County: OK083—Logan

MLRA: 80A—Central Rolling Red Prairies

Regional Office: SC—South Central

MLRA Soil Survey Area: SC-STW—Stillwater, Oklahoma

PEDON

Current Taxonomic Class: Fine, mixed, thermic Udertic Paleustolls

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 5

Sampled As Information:

Soil Name - Kirkland

Taxonomic Class - Fine, mixed, thermic Udertic Paleustolls

PSC - 20 to 71 cm.

Classificaton Date - 6/1/1991

Moisture Class - ustic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: upland

Slope Shape Down: concave

Runoff: very low

Drainage Class: poorly

Bedrock: with 10 to <45

Surface Fragments: 0.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 6/1/1991 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - crop cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon argillic horizon paralithic contact	0—104 20—216 216—0	—- —- —-

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	—	—	305	—	90	79	—	—	17	27	4	17	28	6	—	—	—	3821	—

Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark grayish brown (10YR 4/2) exterior and grayish brown (10YR 5/2) crushed, very dark brown (10YR 2/2) exterior and very dark grayish brown (10YR 3/2) crushed, moist; silt loam; moderate medium subangular blocky, and moderate fine granular structure; soft, very friable; 2.5 very fine and fine roots throughout; 2.5 very fine and fine vesicular and tubular pores; fragments; strongly acid, pH 5.3, hellige-truog; abrupt wavy boundary. Lab sample # 91P05325. discontinuous 1/2" to 2" plowpan; common very fine and fine roots throughout

Bt1—20 to 48 centimeters (7.9 to 18.9 inches); dark grayish brown (10YR 4/2) exterior and dark grayish brown (10YR 4/2) crushed, black (10YR 2/1) exterior and very dark gray (10YR 3/1) crushed, moist; silty clay; 40 percent clay; weak medium prismatic, and strong medium subangular blocky structure; very hard, very firm; 2.5 very fine and fine roots throughout; 2.5 very fine and fine vesicular and tubular pores; 1 percent fine spherical iron-manganese concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 91P05326. few fine iron-manganese concretions concentrations; common very fine and fine roots throughout

Bt2—48 to 71 centimeters (18.9 to 28.0 inches); brown (7.5YR 4/2) exterior and brown (7.5YR 4/3) crushed, dark brown (7.5YR 3/2) exterior and dark brown (7.5YR 3/3) crushed, moist; silty clay; 42 percent clay; weak medium and coarse prismatic, and strong medium subangular blocky structure; extremely hard, extremely firm*; 2.5 very fine and fine roots throughout; 2.5 very fine and fine vesicular and tubular pores; fragments; moderately alkaline, pH 8.0, hellige-truog; clear smooth boundary. Lab sample # 91P05327. common very fine and fine roots throughout

Btk—71 to 104 centimeters (28.0 to 40.9 inches); brown (7.5YR 4/2) exterior and brown (7.5YR 4/3) crushed, dark brown (7.5YR 3/2) exterior and dark brown (7.5YR 3/3) crushed, moist; silty clay; 45 percent clay; weak medium and coarse prismatic, and strong medium angular blocky structure; extremely hard, extremely firm*; 2.5 very fine and fine roots throughout; 2.5 very fine and fine vesicular and tubular pores; 1 percent fine and medium irregular carbonate threads and 1 percent medium spherical carbonate concretions; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 91P05328. 2% visible secondary CaCO3; coatings of (10YR 2/2) material from above in vertical cracks; this material is faint on 85% of vertical ped surfaces; few fine and medium carbonate threads concentrations; few medium carbonate concretions concentrations; common very fine and fine roots throughout; effervescence is continuous

2Bt1—104 to 127 centimeters (40.9 to 50.0 inches); brown (7.5YR 4/4) exterior and dark brown (7.5YR 3/4) crushed, dark brown (7.5YR 3/4) exterior and dark brown (7.5YR 3/4) crushed, moist; silty clay; 47 percent clay; strong medium prismatic, and strong medium angular blocky structure; extremely hard, extremely firm*; 0.5 very fine and fine roots throughout; 2.5 very fine and fine vesicular and tubular pores; 1 percent fine and medium spherical iron-manganese concretions; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 91P05329. few fine and medium iron-manganese concretions concentrations; few very fine and fine roots throughout; effervescence is continuous

2Bt2—127 to 150 centimeters (50.0 to 59.1 inches); reddish brown (2.5YR 4/4) exterior and reddish brown (2.5YR 4/4) crushed, dark reddish brown (2.5YR 3/4) exterior and dark reddish brown (2.5YR 3/4) crushed, moist; silty clay loam; 37 percent clay; 11 percent dark red (2.5YR 3/6) medium distinct and 30 percent dark red (2.5YR 3/6) fine distinct mottles; moderate medium and coarse prismatic, and strong medium angular blocky structure; very hard, very firm; 2.5 very fine and fine roots throughout; 2.5 very fine and fine vesicular and tubular pores; 1 percent fine and medium spherical iron-manganese concretions and 1 percent coarse spherical iron-manganese concretions; 1 percent by volume 2-39-75 millimeter metamorphic, unspecified fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; gradual wavy boundary. Lab sample # 91P05330. cracks between peds are filled with (7.5YR 3/3) sicl material; few 1 cm gravels, mottles are associated with root channels; few fine and medium iron-manganese concretions concentrations; few coarse iron-manganese concretions concentrations; common very fine and fine roots throughout; many fine distinct 2.5YR36 mottles; common medium distinct 2.5YR36 mottles; effervescence is continuous

2Bt3—150 to 188 centimeters (59.1 to 74.0 inches); red (2.5YR 4/6) exterior and reddish brown (2.5YR 4/4) crushed, dark reddish brown (2.5YR 3/4) and dark red (2.5YR 3/6) exterior, moist; silty clay loam; 34 percent clay; 11 percent very dark gray (10YR 3/1) fine and medium prominent and 11 percent gray (10YR 6/1) fine and medium prominent mottles; moderate coarse prismatic, and moderate medium and coarse subangular blocky structure; very hard, very firm; 0.5 very fine and fine roots throughout; 2.5 very fine vesicular and tubular and 2.5 fine vesicular and tubular pores; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; diffuse wavy boundary. Lab sample # 91P05331. cracks between peds are filled with (7.5 YR 3/3) sicl(37% clay)material from above, mottles are associated with root channels; few very fine and fine roots throughout; common fine and medium prominent 10YR31 mottles; common fine and medium prominent 10YR61 mottles; effervescence is continuous

2Bt4—188 to 216 centimeters (74.0 to 85.0 inches); red (2.5YR 4/6) exterior and reddish brown (2.5YR 4/4) crushed, dark red (2.5YR 3/6) exterior and dark reddish brown (2.5YR 3/4) crushed, moist; silty clay loam; 36 percent clay; 1 percent brown (7.5YR 5/3) medium prominent and 11 percent reddish gray (5YR 5/2) fine distinct and 11 percent very dark grayish brown (10YR 3/2) fine prominent mottles; moderate coarse prismatic, and moderate medium and coarse subangular blocky, and moderate subangular blocky structure; very hard, very firm; 2.5 very fine roots throughout; 2.5 very fine vesicular and tubular and 2.5 fine vesicular and tubular pores; 1 percent fine irregular carbonate threads; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.0, hellige-truog; abrupt wavy boundary. Lab sample # 91P05332. mottles are associated with root channels; few fine carbonate threads concentrations; common very fine roots throughout; few medium prominent 7.5YR53 mottles; common fine distinct 5YR52 mottles; common fine prominent 10YR32 mottles; effervescence is continuous

3Cr—216 to 244 centimeters (85.0 to 96.1 inches); red (2.5YR 5/8) exterior, red (2.5YR 4/8) exterior, moist; silt loam; 23 percent clay; very hard, very firm; 2.5 very fine roots in cracks; fragments; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 91P05333. rock structure, sandy siltstone; very few very fine roots in fractures; fractured plates 3-10 cm in length; laminar; common very fine roots in cracks