*** Taxonomy Characterization Data ***

Pedon ID: 91MT015348

( Chouteau, Montana )

Print Date: Nov 11 2024 9:45PM

Sampled as on Jul 30, 1991:	Whitlash ; Loamy-skeletal, mixed Lithic Haploborolls
Revised to :

				United States Department of Agriculture
SSL	-	Project	RP92MT053   CHOUTEAU COUNTY	Natural Resources Conservation Service
	-	Site ID	S1991MT015348   Lat: 48° 12' 34.01" north  Long: 109° 49' 50.01" west	National Soil Survey Center
	-	Pedon No.	92P0255	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

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Taxonomy Tier 1

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

Fine

CaCO3

1500

.1-75

Bulk

Cole

Vol

Resist

Clay

Clay

Clay

kPa

Clay

mm

Den

Whole

% of

Min

Depth

<.002

<.0002

<.002

/Clay

Est

Frac

33 kPa

Soil

Whole

%

Layer

(cm)

Horz

Prep

(---------% of <2 mm-------)

(-------- % --------)

g cm-3

cm cm-1

3A1a1a

8D1

92P01693

0-15

A

S

20.1

0.92

66

41

92P01694

15-38

Bw

S

26.2

0.72

35

46

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Taxonomy Tier 2

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

pH

pH

Org

Tot

Al+½ Fe

CO3 as

(--- Base Sat ---)

NZ

ECEC

CEC7

ECEC

Al

Depth

H2O

NaF

C

C

Oxal

ODOE

CaCO3

NH4

Bases

P Ret

cmol(+)

/Clay

/Clay

Sat

E C

ESP

Layer

(cm)

Horz

Prep

(------------------------------------------ % --------------------------------------------)

kg -1

%

dS m-1

%

4C1a2a

6A1c

5C1

5C3

8D1

5D2

92P01693

0-15

A

S

6.5

4.83

90

72

1.50

tr

92P01694

15-38

Bw

S

6.7

3.09

100*

84

1.29

1

^*Extractable Ca may contain Ca from calcium carbonate or gypsum.

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Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	1.29	(NA)
Clay, carbonate free, Weighted Average	26	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	35	% wt
Volume, >2mm, Weighted Average	46	% vol
Clay, total, Weighted Average	26	% wt
Weighted averages based on control section: 25-38 cm