IDENTIFIERS

Current Taxon Name (Soil Name): Firebrick

OSD

Series Extent

User Site ID: S1996CA005009

User Pedon ID: 96CA005009

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 97P0073

Print Date: 11/21/2024

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: 38.2871163

Std. Longitude: -120.8973820

Datum: WGS84

Township: 5N

Range: 10E

Section: 17

PLSS Details: About 1 1/4 miles SE of Buena Vista on Buena Vista Road; 15 feet south of the northern E/W dirt road, 860 feet easterly from the intersection with N/S road along the western boundary; near the center of the SW 1/4, NW 1/4, NE 1/4, NW 1/4, SE 1/4

Location Description: (NW 1/4 Grid B2).

State: California

County: CA005—Amador

MLRA: 18—Sierra Nevada Foothills

Regional Office: SW—Southwest

MLRA Soil Survey Area: SW-SON—Sonora, California

Non-MLRA Soil Survey Area: CA628—Amador Area, California

7.5 Minute USGS Quad: 38120-C8—Ione, California

PEDON

Describers Name: Terry D. Cook and William Westerling.

Current Taxonomic Class: Clayey, kaolinitic, thermic, shallow Typic Haploxerults

Current Taxon Kind: taxadjunct

Pedon Type: taxadjunct to the series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 9

Correlated Information:

Soil Name - Firebrick

PSC - 7 to 40 cm.

Classificaton Date - 1/25/2024

Classifier - Cathy Scott

Soil Taxonomic Edition - thirteenth edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - UNNAMED

Taxonomic Class - Clayey, kaolinitic, shallow Typic Haploxerults

PSC - 7 to 40 cm.

Classificaton Date - 5/4/1996

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: alluvium and/or sandstone

Landscape: hills

Landform: terrace

Slope Position: on a slope

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: medium

Drainage Class: well

Bedrock: moderately coherent sandstone, unspecified at 40cm

Surface Fragments: 9.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/4/1996 (actual site observation date)

Air Photo ID: 10-2-6

Surface Cover Properties:

Site Obs. Cover Kind 1 - other

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, paralithic	moderately coherent	40 - 195	- 155 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon kandic horizon paralithic contact paralithic materials	0—7 7—40 20—40 40— 40—195	—7— —33— —20— —- —155—

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
5	—	—	110	—	135	500	—	—	16	—	—	—	—	—	—	—	—	—	—

A—0 to 7 centimeters (0.0 to 2.8 inches); pinkish gray (5YR 6/2), dark reddish gray (5YR 4/2), moist; gravelly fine sandy loam; 68 percent sand; 14 percent silt; 19 percent clay; moderate very thick platy parts to weak medium and coarse subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 0.5 very fine and fine roots and 3.0 medium and coarse roots; 3.0 very fine and fine tubular and 3.0 very fine interstitial pores; 20 percent by volume 2-39-75 millimeter quartzite fragments; very strongly acid, pH 4.8, hellige-truog; abrupt wavy boundary. Lab sample # 97P00441. Few subrounded and rounded petroplinthitic fragments.

Bt1—7 to 20 centimeters (2.8 to 7.9 inches); pink (5YR 7/3), reddish brown (5YR 4/4) and brown (7.5YR 4/4), moist; gravelly loam; 40 percent sand; 15 percent silt; 45 percent clay; moderate medium and coarse subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 0.5 fine and medium roots and 0.5 coarse roots; 3.0 very fine and fine tubular and 0.5 medium tubular pores; 10 percent clay films on sand and gravel; 25 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # 97P00442. 25 percent mostly quartzitic gravel with a mixture of sandstone, petroplinthite, and shale fragments of the Ione Fm.

Bt2—20 to 40 centimeters (7.9 to 15.7 inches); light reddish brown (5YR 6/4), yellowish red (5YR 5/6) and strong brown (7.5YR 5/6), moist; gravelly clay; 31 percent sand; 7 percent silt; 62 percent clay; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; 0.5 fine and medium roots and 0.5 coarse roots; 3.0 very fine and fine tubular and 3.0 medium tubular pores; 10 percent clay films on faces of peds and 30 percent clay films in root channels and/or pores; 30 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.8, hellige-truog; clear irregular boundary. Lab sample # 97P00443. 30 percent mostly quartzitic gravel mixture of sandstone, petroplinthite, and shale fragments of the Ione Fm.

2Crv/2Bv1—40 to 87 centimeters (15.7 to 34.3 inches); 75 percent brownish yellow (10YR 6/6) and brownish yellow (10YR 6/8) and yellowish brown (10YR 5/6) and 12 percent red (2.5YR 4/6) and dark red (2.5YR 3/6) and red (10R 4/6), 12 percent light brownish gray (10YR 6/2) and gray (10YR 6/1), moist; bedrock; 38 percent sand; 4 percent silt; 59 percent clay; massive; firm, nonsticky, very plastic; 0.1 fine roots in cracks; 10 percent clay films; fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # 97P00444. Variegated and reticulate lenticular masses. Clay films line fracture planes.

2Crv/2Bv2—87 to 133 centimeters (34.3 to 52.4 inches); 75 percent red (2.5YR 4/6) and dark red (2.5YR 3/6) and red (10R 4/6) and 12 percent brownish yellow (10YR 6/6) and brownish yellow (10YR 6/8) and yellowish brown (10YR 5/6), 12 percent light brownish gray (10YR 6/2) and gray (10YR 6/1) and light gray (N 7/0), moist; bedrock; 38 percent sand; 7 percent silt; 55 percent clay; massive; firm, nonsticky, very plastic; 0.1 fine roots in cracks; 10 percent clay films; fragments; very strongly acid, pH 4.9, hellige-truog; clear wavy boundary. Lab sample # 97P00445. Variegated and reticulate lenticular masses; films line fracture planes.

3Cr—133 to 195 centimeters (52.4 to 76.8 inches);, 15 percent 5YR 3/6 (5YR 3/6) and 15 percent brownish yellow (10YR 6/8) and 40 percent pinkish gray (5YR 6/2) and 15 percent yellowish red (5YR 4/6) and 15 percent yellowish brown (10YR 5/6), moist; bedrock; 63 percent sand; 15 percent silt; 22 percent clay; massive; extremely hard, extremely firm*; fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # 97P00446. Mixed weakly to strongly consolidated sediments with equal proportions of all matrix colors.