LOCATION STARGAZER CA
Tentative Series
NM
07/2022
STARGAZER SERIES
The Stargazer series consists of deep, well drained soils that formed in residuum from granitoid. Stargazer soils are on mountain slopes and have slopes of 0 to 60 percent. The mean annual precipitation is about 899 millimeters and the mean annual air temperature is about 12 degrees C.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Typic Argixerolls
TYPICAL PEDON: Stargazer soils in an area of Cedarpines-Stargazer-Urban land complex, 15 to 30 percent slopes on slope of 25 percent at 1696 meters elevation in an orchard. (Colors are for dry soil unless otherwise noted).
Oe--0 to 7 centimeters; grayish brown (10YR 5/2) moderately decomposed plant material, dark brown (7.5YR 3/2), moist; weak coarse subangular blocky structure; very friable, soft; strongly acid, pH 5.4; clear wavy boundary.
A--7 to 21 centimeters; grayish brown (10YR 5/2) sandy loam, very dark grayish brown (10YR 3/2), moist; moderate medium subangular blocky structure parts to moderate fine granular structure; very friable, slightly hard; common medium dendritic tubular pores; 3 percent cobbles and 4 percent gravel; moderately acid, pH 5.8; clear smooth boundary.
AB--21 to 41 centimeters; yellowish brown (10YR 5/4) sandy loam, dark brown (10YR 3/3), moist; moderate medium subangular blocky structure; friable, slightly hard; common medium dendritic tubular pores; 5 percent gravel; slightly acid, pH 6.2; clear wavy boundary.
Bt1--41 to 71 centimeters; very pale brown (10YR 7/4) clay loam, yellowish brown (10YR 5/4), moist; moderate medium subangular blocky structure; friable, hard; common coarse dendritic tubular pores; prominent strong brown (7.5YR 4/6), dry, pressure faces on all faces of peds; 7 percent gravel; slightly acid, pH 6.2; clear smooth boundary.
Bt2--71 to 130 centimeters; very pale brown (10YR 7/4) loam, yellowish brown (10YR 5/4), moist; moderate medium subangular blocky structure; friable, hard; common coarse dendritic tubular pores; faint strong brown (7.5YR 4/6), dry, clay films on all faces of peds; 7 percent gravel; strongly acid, pH 5.4; clear wavy boundary.
Cr--130 to 155 centimeters; granitoid rock.
TYPE LOCATION: San Bernardino County, CA; 516 meters east and 880 meters north of the southwest corner of section 9, T. 2 N., R. 3 W.; 34.273639 degrees latitude, -117.202028 degrees longitude NAD83; UTM Zone 11, 3792517n, 481403e. U.S.G.S Quad Name: Lake Arrowhead, CA
RANGE IN CHARACTERISTICS:
Mean annual soil temperature: 11 to 13 degrees C. Soil temperature is greater than 8 degrees C. the entire year.
Soil moisture:
Rock fragments: 0 to 15 percent
Reaction: 5.8 to 6.8
Clay content: 10 to 35 percent
A and AB horizons:
Dry color: 10YR or 7.5YR 4/3, 4/2, 4/1, 5/2, 5/3, 5/1
Moist color: 10YR or 7.5YR 3/2, 3/3, 2.5/1, 2/1, 3/1
Texture: loam, sandy loam
Clay content: 5 to 15
Rock fragments: 0 to 15 percent
Organic matter content: 2.0 to 4.0 percent
Bt1 horizons:
Dry color: 10YR, 7.5YR, 5/4, 6/4, 5/3, 6/5, 7/4
Moist color: 10YR, 7.5YR 3/3, 4/4, 4/3, 3/4, 5/4, 5/3
Texture: sandy clay loam, clay loam, gravelly clay loam
Clay content: 20 to 35 percent
Rock fragments: 0 to 20 percent
Organic matter content: 0.5 to 1.5 percent
Bt2 horizons:
Dry color: 10YR, 7.5YR, 5/4, 6/4, 5/3, 6/5, 7/4
Moist color: 10YR, 7.5YR 3/3, 4/4, 4/3, 3/4, 5/4, 5/3
Texture: sandy loam, loam, coarse sandy loam
Clay content: 10 to 25 percent
Rock fragments: 0 to 15 percent
Organic matter content: 0.1 to 1.0 percent
COMPETING SERIES:
Ahsahka soils: greater than 24 percent clay in the lower part of the argillic horizon.
Canyonspring soils: 25 to 50 centimeters to a paralithic contact of gneiss and granitoid rock.
Colma soils: greater than 150 centimeters to a lithic contact.
Currymountain soils: 60 to 85 centimeters to a paralithic contact of marine sandstone and shale.
Dragnot soils: 50 to 100 centimeters to a lithic contact of granodiorite.
Duzel soils: greater than 15 percent fragments in the upper part of the particle control section.
Elkheights soils: 140 to 160 centimeters to a densic horizon.
Facey soils: greater than 15 percent clay in the A horizon.
Farrot soils: 50 to 100 centimeters to a lithic contact of weathered quartz diorite.
Foehlin soils: greater than 15 percent rock fragments throughout the control section.
Immiant soils: 50 to 100 centimeters to a lithic contact of weathered latite.
Ladd soils: volcanic ash present from 0 to 20 centimeters and have a mean annual air temperature below 12 degrees C.
Lobitos soils: 50 to 80 centimeters to a lithic contact of basalt.
Mehlhorn soils: are moderately deep to a lithic contact formed in material weathered from basalt and have mean annual air temperature below 12 degrees C.
Picketpin soils: have lamellae present from 90 to 150 centimeters.
Piniipitt soils: 50 to 100 centimeters to a lithic contact of basalt and have 15 to 35 percent rock fragments in the particle size control section.
Pittville soils: greater than 150 centimeters to a lithic contact and have less than 0.2 percent organic matter in the lower Bt.
Sagaser soils: have 17 to 27 percent clay in the A horizon.
Taneum soils: greater than 150 centimeters to a lithic contact and have a mean annual soil temperature of less than 12 degrees C.
Tieton soils: 100 to 150 centimeters to a lithic contact of andesite and have secondary carbonates in the Bk and C horizons.
Tweedy soils: 50 to 100 centimeters to a paralithic contact of schist.
Vollmer soils: 50 to 100 centimeters to a lithic contact of basalt.
Yardarm soils: 50 to 100 centimeters to a lithic contact of schist and have 15 to 35 percent rock fragments in particle size control section.
GEOGRAPHIC SETTING:
Landscape: mountains
Landform: mountain slopes
Parent Material: residuum from granitoid
Slope: 0 to 65 percent slopes
Elevation: 1240 to 2170 meters
Mean annual precipitation: 620 to 1100 millimeters
Mean January temperature: 5 degrees C
Man July temperature: 23 degrees C
Mean annual temperature: 9.5 to 13.0 degrees C
Frost-free season: 150 to 205 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Canyonspring soils: 25 to 50 centimeters to paralithic contact of gneiss and granitoid rock and are on similar landscape positions.
Cedarpines soils: 50 to 100 centimeters to a paralithic contact of granitoid rock, lack an argillic horizon, have a cambic horizon, are coarse-loamy, and on similar landscape positions.
Heapspeak soils: lack an argillic horizon, have a cambic horizon, are coarse-loamy and are on ridges.
Plaskett soils: 25 to 50 centimeters to a lithic contact of sandstone, are loamy-skeletal, lack an argillic horizon and are on mountain ridges.
Runningsprings soils: 25 to 50 centimeters to a paralithic contact of granitoid rock, are loamy, lack an argillic horizon and are on similar landscape positions.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; moderately slow to moderate saturated hydraulic conductivity.
USE AND VEGETATION: Used for recreation, watershed and wildlife habitat. Some areas are used locally for homesites. The present vegetation is mainly incense cedar, California black oak, big berry manzanita, Coulter pine and shrubs.
DISTRIBUTION AND EXTENT: Southern California Coastal Plains and Mountains, MLRA 19. This soil is moderately extensive.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Davis, California.
SERIES ESTABLISHED: 2004
REMARKS:
Diagnostic horizons and features recognized in this pedon include:
Mollic epipedon:7 to 41 centimeters
Argillic horizon: 41 to 91 centimeters
Paralithic contact: 130 centimeters
Particle-size control section: 41 to 89 centimeters
ADDITIONAL DATA:
NASIS User Site ID: 2004CA071015
Pedon ID: ca777-6864-171-G
Classified using the Twelfth Edition Keys to Soil Taxonomy (2014)
National Cooperative Soil Survey
U.S.A.