Ecological Land Types within LTA 35.
ELT 35a
Soil Summary:
very deep, very gravelly fine sand over stratified sands, fine sands, gravelly coarse sands, etc., mixed limy and non-limy layers, little or no development; dominated by Pima County soil survey map unit 66 (Redington very gravelly fine sand, 3 to 50 percent slopes) which comprises 96% of the ELT
Geologic Materials:
alluvium, colluvium, and residuum associated with Willow Canyon, Apache Canyon, and Schellenberger Canyon Formations (Kbs); Glance Conglomerate (KJg?); old alluvium (QTs); upper member of Pantano Formation (Tpu); Turkey Track Andesite (Tpv); Cienega Creek middle to late Pleistocene terraces (Qir); and Glance, limestone clast, granite clast, heterolithic facies (Kbg) which comprise 23%, 24%, 13%, 9%, 7%, 6% and 5% of the ELT, respectively
Landforms:
coarsely to moderately dissected, weakly to moderately incised fans, pediments and low hills
ELT 35b
Soil Summary:
shallow to phyllite or similar bedrock, extremely channery loam surface layer over extremely channery clay subsoil, no lime, moderate to strong development (clay accumulation); dominated by Pima County soil survey map unit 24 (Deloro-Rock outcrop complex, 15 and 60 percent slopes) which comprises 97% of the ELT
Geologic Materials:
alluvium, colluvium, and residuum associated with with Turkey Ranch Formation, Bisbee Group, quartzose sandstone (Kbt); Pantano Lower Conglomerate (Tpi); Glance Conglomerate (KJg); Willow Canyon, Apache Canyon, and Schellenberger Canyon Formations (Kbs); and Cienega Creek channel deposits and Holocene terraces (Qyr) which comprise 28%, 26%, 21%, 10% and 7% of the ELT, respectively
Landforms:
coarsely to moderately dissected, weakly to moderately incised fans, pediments and low hills
ELT 35c
Soil Summary:
very deep, very gravelly fine sand over stratified sands, fine sands, gravelly coarse sands, etc., mixed limy and non-limy layers, little or no development; dominated by Pima County soil survey map unit 66 (Redington very gravelly fine sand, 3 to 50 percent slopes) which comprises 90% of the ELT
Geologic Materials:
alluvium, colluvium, and residuum associated with Lower Davidson Canyon facies, mixed conglomerate, reddish (Tpi); Cienega Creek middle to late Pleistocene terraces (Qir); old alluvium (QTs); Willow Canyon, Apache Canyon, and Schellenberger Canyon Formations (Kbs); late Holocene deposits in active stream channels and low terraces (Qy2); and Cienega Creek channel deposits and Holocene terraces (Qyr) which comprise 41%, 19%, 15%, 10%, 6% and 5% of the ELT, respectively
Landforms:
coarsely to moderately dissected, weakly to moderately incised fans, pediments and low hills
ELT 35d
Soil Summary:
very deep, very gravelly fine sand over stratified sands, fine sands, gravelly coarse sands, etc., mixed limy and non-limy layers, little or no development; dominated by Pima County soil survey map unit 66 (Redington very gravelly fine sand, 3 to 50 percent slopes) which comprises 92% of the ELT
Geologic Materials:
alluvium, colluvium, and residuum associated with Miocene to Quaternary conglomerate with colluvial veneer (QTsc); Upper Member of Pantano Formation (Tpu); Quaternary surficial deposits, undivided (Qs) and Lower Davidson Canyon facies, mixed conglomerate, reddish (Tpi) which comprise 39%, 30%, 20% and 7% of the ELT, respectively
Landforms:
coarsely to moderately dissected, weakly to moderately incised fans, pediments and low hills
ELT 35e
Soil Summary:
mostly shallow and moderately deep to bedrock, a complex of extremely gravelly loams associated with schist with lime accumulations and non-limy extremely gravelly sandy loams over extremely gravelly sandy clays related to rhyolite; soils are moderately to well developed (lime and clay accumulations); dominated by Pima County soil survey map unit 58 (Pantano-Granolite complex, 5 to 25 percent slopes) which comprises 83% of the ELT
Geologic Materials:
alluvium, colluvium, and residuum associated with Lower Davidson Canyon facies, mixed conglomerate, reddish (Tpi); Turkey Track Andesite (Tpv); old alluvium (QTs); early Pleistocene river terrace deposits (Qor); and Miocene to Quaternary conglomerate with colluvial veneer (QTsc) which comprise 22%, 20%, 17%, 14%and 10% of the ELT, respectively
Landforms:
coarsely to moderately dissected, weakly to moderately incised fans, pediments and low hills
ELT 35f
Soil Summary:
very deep, gravelly loam,very gravelly loam and sandy loam surfaces with subsoils ranging from clays, very gravelly sandy clay loams to sandy clay loams, lime occurs deep in the profile or is lacking altogether, well developed (clay accumulation); other included soils are shallow and moderately deep to a caliche hardpan, have very gravelly sandy loam surfaces over very and extremely gravelly sandy loam and sandy clay loam subsurface layers, are limy throughout and have strong development (lime accumulation and cementation); dominated by Pima County soil survey map unit 27 (Diaspar sandy loam, 1 to 5 percent slopes), 9 (Caralampi very gravelly sandy loam, 5 to 15 percent slopes), 85 (White House gravelly loam, 1 to 8 percent slopes) and 65 (Powerline-Kimrose family complex, 10 to 35 percent slopes) which comprise 26%, 22%, 17% and 11% of the ELT, respectively
Geologic Materials:
alluvium, colluvium, and residuum associated with Quaternary surficial deposits, undivided (Qs); alluvium (Qi); Proterozoic granite (Tpx); and sandstone, siltstone and conglomerate, undivided (QTs) which comprise 39%, 34%, 11% and 7% of the ELT, respectively
Landforms:
coarsely to moderately dissected, weakly to moderately incised fans, pediments and low hills