*** Taxonomy Characterization Data ***

Pedon ID: 91MT089012

( Sanders, Montana )

Print Date: Nov 21 2024 12:38PM

Sampled as on May 30, 1991:	Irvine ; Fine-silty, illitic (calcareous), frigid Typic Xerorthents
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP91MT199   SANDERS COUNTY	Natural Resources Conservation Service
	-	Site ID	S1991MT089012   Lat: 47° 27' 44.00" north  Long: 114° 24' 8.00" west	National Soil Survey Center
	-	Pedon No.	91P0857	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		3A1a1a	8D1			4A1d
91P05169	0-8	A	S	46.2		0.3	0.28		4	1.33	0.017	2
91P05170	8-18	C1	S	49.5		1.5	0.30		1	1.26	0.016
91P05171	18-31	C2	S	46.6		1.2	0.29		tr
91P05172	31-50	C31	S	36.1		1.2	0.24		1	1.41	0.012
91P05173	50-60	C32	S	9.2		0.6	0.32		tr
91P05174	60-70	C33	S	67.7		1.8	0.30		6	1.40	0.040	2
91P05175	70-152	C34	S	42.4		1.5	0.30		1
91P05176	100-106	C35	variable							1.41

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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			8J	6E1g	5C1	5C3	6S4		8D1			8A3a	5D2
91P05169	0-8	A	S	8.1		1.32		0.24	0.04	5	100*	100	28		0.23			1.34	2
91P05170	8-18	C1	S	8.3		0.40		0.18	0.03	8	100*	100	45		0.39			0.71	2
91P05171	18-31	C2	S	8.2		0.10		0.19	0.03	8	100*	100	50		0.39			3.12	4
91P05172	31-50	C31	S	8.0		0.10		0.21	0.04	8	100*	100	50		0.46			5.04	6
91P05173	50-60	C32	S	8.3		0.04		0.14	0.03	8	100*	100	42		0.40			3.19	17
91P05174	60-70	C33	S	8.0		0.10		0.26	0.04	4	100*	100	31		0.19			5.98	13
91P05175	70-152	C34	S	8.2		0.07		0.17	0.03	7	100*	100	50		0.18			3.45	14

^*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	0.31	(NA)
Clay, carbonate free, Weighted Average	39	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	1	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	40	% wt
Weighted averages based on control section: 25-100 cm