IDENTIFIERS

Current Taxon Name (Soil Name): Chen

OSD

Series Extent

User Site ID: S2005NV007009

User Pedon ID: S2005NV007009

Vegetation Plot ID: S2005NV007009

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 06N0250

NCSS Pedon Lab Data NASIS Record ID - 17985

Print Date: 2/17/2025

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: 40.9359436

Std. Longitude: -115.9093323

Datum: WGS84

Township: 35N.

Range: 54E.

Section: 9

Location Description: located about 10 miles northwest of Elko in the Adobe Range

Map Unit: 1881—Chen, moderately steep-Chen-Lerrow association

State: Nevada

County: NV007—Elko

MLRA: 25—Owyhee High Plateau

Non-MLRA Soil Survey Area: NV767—Elko County, Nevada, Central Part

7.5 Minute USGS Quad: 40115-H8—Adobe Summit, Nevada

PEDON

Describers Name: Paul W. Blackburn

Current Taxonomic Class: Clayey-skeletal, smectitic, frigid Lithic Argixerolls

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Pedon #: 9

Correlated Information:

Soil Name - Chen

PSC - 15 to 41 cm.

Classificaton Date - 6/29/2006

Soil Taxonomic Edition - ninth edition

Moisture Class - aridic (torric)

Moisture Subclass - xeric

Sampled As Information:

Soil Name - Chen

Classificaton Date - 8/12/2005

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: loess and/or residuum weathered from volcanic rock

Landscape: hills

Landform: slightly concave hill

Runoff: very high

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: strongly coherent tuff, unspecified at 41cm

Surface Fragments: 20.00 percent nonflat 2- to 76-millimeter rhyolite, 5.00 percent 76- to 250-millimeter

Benchmark Soil?: no

VEGETATION

Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
Ecological Site ID	Ecological Site Name	Correlation Data	Classifier
R025XY017NV	CLAYPAN 12-16 P.Z.

SITE OBSERVATION

Observation Date: 8/12/2005 (actual site observation date)

Plant Association Name: R025XY017NV CLAYPAN 12-16" P.Z.

Surface Cover Properties:

Site Obs. Cover Kind 1 - shrub cover

Site Obs. Cover Kind 2 - rangeland, shrubby

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
ARAR8 FEID LECI4 POSE PSSPS PUTR2	Artemisia arbuscula Festuca idahoensis Leymus cinereus Poa secunda Pseudoroegneria spicata ssp. spicata Purshia tridentata	little sagebrush Idaho fescue basin wildrye Sandberg bluegrass bluebunch wheatgrass antelope bitterbrush	— — — — — —	— — — — — —	— — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, lithic	strongly coherent	41 -	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon argillic horizon lithic contact	0—30 15—41 41—	—- —- —-

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
15	—	—	1962	—	355	360	—	90	6.7	—	—	—	—	—	—	—	—	—	—

A1—0 to 5 centimeters (0.0 to 2.0 inches); grayish brown (10YR 5/2), very dark grayish brown (10YR 3/2), moist; gravelly loam; 18 percent clay; weak medium platy parts to moderate fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 5.0 very fine interstitial and 0.5 fine vesicular pores; 15 percent by volume nonflat 20-48-76 millimeter rhyolite fragments and 15 percent by volume nonflat 2-11-20 millimeter rhyolite fragments; neutral, pH 6.6; abrupt smooth boundary. Lab sample # 06N00961; observed in pit, small. although too much sand in A1 and A2 horizon to be SIL they are loaded with VFS size particles that are probably glass shards

A2—5 to 15 centimeters (2.0 to 5.9 inches); brown (10YR 5/3), very dark grayish brown (10YR 3/2), moist; very gravelly loam; 20 percent clay; weak thin platy parts to moderate fine and medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 3.0 very fine roots and 0.5 medium roots and 3.0 fine roots; 3.0 very fine tubular and 5.0 very fine interstitial pores; 10 percent by volume nonflat 76-163-250 millimeter rhyolite fragments and 15 percent by volume nonflat 2-11-20 millimeter rhyolite fragments and 20 percent by volume nonflat 20-48-76 millimeter rhyolite fragments; neutral, pH 6.8; abrupt smooth boundary. Lab sample # 06N00962; observed in pit, small

Bt1—15 to 23 centimeters (5.9 to 9.1 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; very gravelly clay loam; 30 percent clay; moderate fine and medium subangular blocky structure; slightly hard, very friable, moderately sticky, moderately plastic; 3.0 very fine roots and 0.5 medium roots and 3.0 fine roots; 5.0 very fine tubular and 5.0 fine tubular pores; 25 percent distinct clay bridges between sand grains and 25 percent distinct clay films on all faces of peds; 10 percent by volume nonflat 76-163-250 millimeter rhyolite fragments and 15 percent by volume nonflat 20-48-76 millimeter rhyolite fragments and 20 percent by volume nonflat 2-11-20 millimeter rhyolite fragments; neutral, pH 6.8; abrupt smooth boundary. Lab sample # 06N00963; observed in pit, small. fragment weights at sampling: Total weight = 26 lb 19-75 mm = 5 lb 75-250 mm = 1 lb

Bt2—23 to 30 centimeters (9.1 to 11.8 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; very gravelly clay; 40 percent clay; moderate fine and medium angular blocky structure; hard, friable, very sticky, very plastic; 3.0 very fine roots and 3.0 medium roots and 3.0 fine roots; 3.0 very fine tubular and 3.0 fine tubular pores; 15 percent prominent clay films on all faces of peds and 60 percent prominent clay films on surfaces along pores and 60 percent prominent clay bridges between sand grains; 10 percent by volume nonflat 76-163-250 millimeter rhyolite fragments and 10 percent by volume nonflat 2-11-20 millimeter rhyolite fragments and 25 percent by volume nonflat 20-48-76 millimeter rhyolite fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # 06N00964; observed in pit, small

Bt3—30 to 41 centimeters (11.8 to 16.1 inches); light brown (7.5YR 6/3), dark yellowish brown (10YR 3/4), moist; very gravelly clay; 42 percent clay; moderate fine and medium angular blocky structure; hard, firm, very sticky, very plastic; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 3.0 very fine tubular and 3.0 fine tubular pores; 60 percent prominent clay films on surfaces along pores and 60 percent prominent clay films on all faces of peds and 60 percent prominent clay bridges between sand grains; 10 percent by volume nonflat 76-163-250 millimeter tuff, unspecified fragments and 10 percent by volume nonflat 2-11-20 millimeter tuff, unspecified fragments and 30 percent by volume nonflat 20-48-76 millimeter tuff, unspecified fragments; neutral, pH 7.2; clear wavy boundary. Lab sample # 06N00965; observed in pit, small

R—41 centimeters (16.1 inches); unweathered bedrock; 0.5 very fine roots in cracks and 0.5 fine roots; 1 percent silica concretions on bottom of rock fragments; fragments. Lab sample # 06N00966; observed in pit, small