*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled as on Oct 30, 1991:	Silawa ; Fine-loamy, siliceous Ultic Haplustalfs
Revised to :

				United States Department of Agriculture
SSL	-	Project	CP92TX099   ROBERTSON COUNTY TEXAS	Natural Resources Conservation Service
	-	Site ID	S1991TX395001   Lat: 31° 1' 58.00" north  Long: 96° 37' 0.01" west  MLRA: 87	National Soil Survey Center
	-	Pedon No.	92P0387	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
92P02369	Ap	Ap	0-12				LFS	LFS
92P02370	A	A	12-21				LFS	LFS
92P02371	E	E	21-29				LFS	LFS
92P02372	Bt1	Bt1	29-47				SCL	SCL
92P02373	Bt2	Bt2	47-87				SCL	SCL
92P02374	2Bt1	2Bt3	87-97				SCL	SCL
92P02375	2Bt2	2Bt4	97-127				SCL	SCL
92P02376	2Bt3	2Bt5	127-160				SCL	SCL
92P02377	2Bt4	2Bt6	160-180				SCL	FSL
92P02378	3BCt	3BCt	180-210				FSL	SCL
92P02379	3BC	3BC	210-218				L	FSL
92P02380	4C1	4C1	218-240				FSL	FSL
92P02381	4C2	4C2	240-270				FSL	FSL
92P02382	5C1	5C1	270-348				LFS	LFS
92P02383	5C2	5C2	348-387				FSL	FSL
92P02384	5C3	5C3	387-411				FSL	FSL
92P02385	5C4	5C4	411				C

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.33	(NA)
Clay, carbonate free, Weighted Average	33	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	40	% wt
Volume, >2mm, Weighted Average	0	% vol
Clay, total, Weighted Average	33	% wt
LE, Whole Soil, Summed to 1m	0	cm/m
Weighted averages based on control section: 29-79 cm

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

PSDA  &  Rock Fragments				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-
					(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)					( Rock Fragments   (mm) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
				3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a		3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3B1	3B1	3B1
92P02369	0-12	Ap	S	lfs	2.5	12.6	84.9	1.4		4.5	8.1	17.2	59.5	7.5	0.5	0.2	tr	tr	--	68
92P02370	12-21	A	S	lfs	3.3	12.2	84.5	1.9		4.3	7.9	20.1	55.1	8.7	0.5	0.1	tr	tr	--	64
92P02371	21-29	E	S	lfs	4.8	15.4	79.8	3.1		6.0	9.4	19.0	52.1	7.6	0.7	0.4	tr	1	--	61	1
92P02372	29-47	Bt1	S	scl	30.1	14.4	55.5	26.9		5.8	8.6	14.4	37.2	3.3	0.4	0.2	tr	tr	--	41
92P02373	47-87	Bt2	S	scl	34.1	15.8	50.1	29.2		5.4	10.4	11.3	32.8	5.0	0.6	0.4	1	tr	--	39	1
92P02374	87-97	2Bt1	S	scl	32.6	13.1	54.3	28.6		4.9	8.2	13.8	29.8	6.3	1.7	2.7	4	5	--	46	9
92P02375	97-127	2Bt2	S	scl	26.2	17.3	56.5	21.9		6.0	11.3	15.5	34.7	5.4	0.7	0.2	tr	tr	--	41
92P02376	127-160	2Bt3	S	scl	22.5	17.5	60.0	17.2		6.5	11.0	17.3	36.5	5.0	0.7	0.5	1	1	--	44	2
92P02377	160-180	2Bt4	S	fsl	19.9	13.0	67.1	14.4		4.4	8.6	14.6	42.6	9.0	0.6	0.3	2	1	--	54	3
92P02378	180-210	3BCt	S	scl	23.0	19.3	57.7	16.5		9.2	10.1	14.8	29.0	8.9	2.4	2.6	6	7	--	50	13
92P02379	210-218	3BC	S	fsl	14.5	8.8	76.7	10.9		3.0	5.8	6.7	49.6	18.3	1.2	0.9	4	8	--	74	12
92P02380	218-240	4C1	S	fsl	17.7	16.7	65.6	12.3		4.1	12.6	22.4	33.9	7.8	1.3	0.2	3	4	--	47	7
92P02381	240-270	4C2	S	fsl	12.0	6.0	82.0	8.8		1.9	4.1	7.5	55.2	18.0	0.9	0.4	1	--	--	75	1
92P02382	270-348	5C1	S	lfs	8.9	12.1	79.0	6.6		3.4	8.7	20.8	52.0	6.0	0.1	0.1	tr	--	1	59	1
92P02383	348-387	5C2	S	fsl	13.8	18.2	68.0	8.9		6.6	11.6	29.2	36.7	1.8	0.3	tr	--	--	--	39
92P02384	387-411	5C3	S	fsl	11.7	15.4	72.9	7.4		7.5	7.9	23.7	45.2	3.1	0.6	0.3	2	1	--	51	3
92P02385	411	5C4	S														19	26	15

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

Bulk Density  &  Moisture				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(Bulk Density)		Cole	(- - - - - - - - - - - Water Content - - - - - - - - - - -)					( Air Dry-Oven Dry )		WRD	Aggst
				33	Oven	Whole	6	10	33	1500	1500 kPa	(- - - - Ratio - - - -)		Whole	Stabl	(- - Ratio/Clay - -)
	Depth			kPa	Dry	Soil	kPa	kPa	kPa	kPa	Moist		Corrected	Soil	2-0.5mm	CEC7	1500 kPa
Layer	(cm)	Horz	Prep	(- - - g cm-3 - - -)			(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)							cm3 cm-3	%
				4A1d	4A1h				4B1c	3C2a1a		3D1		4C1		8D1	8D1
92P02369	0-12	Ap	S	1.45	1.50	0.011			8.5	2.6		1.002		0.09		1.32	1.04
92P02370	12-21	A	S	1.58	1.60	0.004			6.4	1.8		1.002		0.07		0.58	0.55
92P02371	21-29	E	S	1.65	1.67	0.004			8.2	2.0		1.002		0.10		0.40	0.42
92P02372	29-47	Bt1	S	1.60	1.76	0.032			19.4	12.0		1.017		0.12		0.35	0.40
92P02373	47-87	Bt2	S	1.60	1.77	0.034			20.2	14.6		1.020		0.09		0.33	0.43
92P02374	87-97	2Bt1	S	1.65	1.81	0.029			19.0	12.4		1.019		0.10		0.34	0.38
92P02375	97-127	2Bt2	S	1.70	1.84	0.027			15.7	10.7		1.017		0.09		0.37	0.41
92P02376	127-160	2Bt3	S	1.69	1.81	0.023			14.6	9.2		1.016		0.09		0.42	0.41
92P02377	160-180	2Bt4	S	1.64	1.73	0.018			13.7	8.1		1.013		0.09		0.44	0.41
92P02378	180-210	3BCt	S	1.51	1.76	0.048			22.7	9.1		1.017		0.19		0.46	0.40
92P02379	210-218	3BC	S							6.3		1.009				0.50	0.43
92P02380	218-240	4C1	S							8.5		1.015				0.51	0.48
92P02381	240-270	4C2	S							6.3		1.008				0.45	0.53
92P02382	270-348	5C1	S							3.7		1.005				0.52	0.42
92P02383	348-387	5C2	S							6.8		1.012				0.59	0.49
92P02384	387-411	5C3	S							5.8		1.009				0.62	0.50
92P02385	411	5C4	S							10.3		1.015

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

Water Content				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-
				(- - Atterberg - -)		(- - - - - Bulk Density - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -)
				(- - - Limits - - -)		Field	Recon	Recon	Field	Recon	(- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -)
				LL	PI		33	Oven		33	6	10	33	100	200	500
	Depth						kPa	Dry		kPa	kPa	kPa	kPa	kPa	kPa	kPa
Layer	(cm)	Horz	Prep	pct <0.4mm		(- - - - - - - - g cm-3 - - - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -)
				4F1	4F										3C1e1a
92P02369	0-12	Ap	S												3.7
92P02370	12-21	A	S												2.6
92P02371	21-29	E	S												3.2
92P02372	29-47	Bt1	S												15.0
92P02373	47-87	Bt2	S												15.8
92P02374	87-97	2Bt1	S												15.4
92P02375	97-127	2Bt2	S												13.6
92P02376	127-160	2Bt3	S												11.5
92P02377	160-180	2Bt4	S												10.3
92P02378	180-210	3BCt	S												12.9
92P02379	210-218	3BC	S												7.9
92P02380	218-240	4C1	S												10.4
92P02381	240-270	4C2	S												6.8
92P02382	270-348	5C1	S												4.9
92P02383	348-387	5C2	S	880	880										9.2
92P02384	387-411	5C3	S												7.8
92P02385	411	5C4	S												13.6

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

Carbon  &  Extractions				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-
				(- - - - - Total - - - - -)			Est	OC	C/N	(- - - Dith-Cit Ext - - -)			(- - - - - - Ammonium Oxalate Extraction - - - - - -)						(- - - Na Pyro-Phosphate - - -)
	Depth			C	N	S	OC	(WB)	Ratio	Fe	Al	Mn	Al+½Fe	ODOE	Fe	Al	Si	Mn	C	Fe	Al	Mn
Layer	(cm)	Horz	Prep	(- - - - - - - - - - % of <2 mm - - - - - - - - - -)						(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)								mg kg-1	(- - - - - - % of < 2mm - - - - -)
								6A1c		6C2b	6G7a	6D2a		8J	6C9b	6G12b	6V2b	6D5b
92P02369	0-12	Ap	S					0.88		0.4	tr	--	0.05	0.01	0.06	0.02	0.01	57.3
92P02370	12-21	A	S					0.26		0.4	tr	--	0.02	0.01	0.03	0.01	--	--
92P02371	21-29	E	S					0.19		0.5	tr	--	0.03	tr	0.04	0.01	--	--
92P02372	29-47	Bt1	S					0.35		2.0	0.2	--	0.18	0.02	0.19	0.09	0.02	--
92P02373	47-87	Bt2	S					0.28		2.2	0.2	--	0.16	0.01	0.12	0.10	0.02	--
92P02374	87-97	2Bt1	S					0.21		3.3	0.2	--	0.13	0.01	0.09	0.09	0.01	--
92P02375	97-127	2Bt2	S					0.14		1.8	0.1	--	0.08	tr	0.05	0.06	0.01	--
92P02376	127-160	2Bt3	S					0.09		1.9	0.1	--	0.06	0.01	0.03	0.04	0.01	--
92P02377	160-180	2Bt4	S					0.06		1.6	0.1	--	0.05	--	0.03	0.03	0.01	--
92P02378	180-210	3BCt	S					0.07		2.9	0.1	tr	0.05	0.02	0.04	0.03	0.02	--
92P02379	210-218	3BC	S					0.04		2.0	0.1	--	0.03	tr	0.02	0.02	0.01	--
92P02380	218-240	4C1	S					0.05		2.2	0.1	tr	0.03	tr	0.02	0.02	0.01	--
92P02381	240-270	4C2	S					0.03		1.3	0.1	--	0.03	0.02	0.02	0.02	0.01	--
92P02382	270-348	5C1	S					0.03		0.5	tr	--	0.01	0.02	0.01	0.01	--	--
92P02383	348-387	5C2	S					0.01		0.5	tr	--	0.01	0.02	0.01	0.01	0.01	--
92P02384	387-411	5C3	S					0.01		0.8	tr	--	0.01	0.02	--	0.01	--	--
92P02385	411	5C4	S					0.05						0.02	0.06	0.03	0.03	--

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

CEC  &  Bases				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(- - - - - - NH4OAC Extractable Bases - - - - -)								CEC8	CEC7	ECEC		(- - - - Base - - - -)
								Sum	Acid-	Extr	KCl	Sum	NH4	Bases	Al	(- Saturation -)
	Depth			Ca	Mg	Na	K	Bases	ity	Al	Mn	Cats	OAC	+Al	Sat	Sum	NH4OAC
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)							mg kg-1	(- - - - cmol(+) kg-1 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2e	6O2d	6P2b	6Q2b		6H5a	6G9c		5A3a	5A8b	5A3b	5G1	5C3	5C1
92P02369	0-12	Ap	S	2.1	0.5	tr	0.2	2.8	1.5	--		4.3	3.3			65	85
92P02370	12-21	A	S	1.1	0.5	tr	0.1	1.7	0.9			2.6	1.9			65	89
92P02371	21-29	E	S	1.2	0.5	tr	0.1	1.8	0.3			2.1	1.9			86	95
92P02372	29-47	Bt1	S	6.3	2.2	0.1	0.5	9.1	4.1			13.2	10.4			69	88
92P02373	47-87	Bt2	S	6.4	3.2	0.1	0.2	9.9	3.2			13.1	11.2			76	88
92P02374	87-97	2Bt1	S	5.3	3.3	0.1	0.2	8.9	3.9	tr		12.8	11.0			70	81
92P02375	97-127	2Bt2	S	5.0	3.2	0.1	0.1	8.4	3.7	0.3		12.1	9.6	8.7	3	69	88
92P02376	127-160	2Bt3	S	4.7	3.3	0.1	0.2	8.3	2.2	0.1		10.5	9.4	8.4	1	79	88
92P02377	160-180	2Bt4	S	4.5	3.2	0.1	0.1	7.9	1.9	--		9.8	8.7			81	91
92P02378	180-210	3BCt	S	5.4	4.0	0.1	0.2	9.7	1.6			11.3	10.6			86	92
92P02379	210-218	3BC	S	3.4	2.8	0.1	0.1	6.4	1.6	tr		8.0	7.2	6.5	2	80	89
92P02380	218-240	4C1	S	4.4	3.8	0.1	0.1	8.4	1.6	--		10.0	9.0			84	93
92P02381	240-270	4C2	S	2.8	2.3	0.1	0.1	5.3	1.5			6.8	5.4			78	98
92P02382	270-348	5C1	S	2.6*	1.9	0.1	tr	4.6	0.5			5.1	4.6			90	100
92P02383	348-387	5C2	S	4.8	3.0	0.1	0.1	8.0	0.7			8.7	8.1			92	99
92P02384	387-411	5C3	S	4.3*	2.7	0.1	0.1	7.2	0.5			7.7	7.2			94	100
92P02385	411	5C4	S	7.3	3.9	0.2	0.2		2.9				12.5

^*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

Salt				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-	-20-
				(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)																	1:2
																			Total	Elec	Elec	Exch
	Depth			Ca	Mg	Na	K	CO3	HCO3	F	Cl	PO4	Br	OAC	SO4	NO2	NO3	H2O	Salts	Cond	Cond	Na	SAR
Layer	(cm)	Horz	Prep	(- - - - - mmol(+) L-1 - - - - -)				(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)										(- - - - % - - - -)		(- - dS m-1 - -)		%
																					4F1a1a1
92P02369	0-12	Ap	S																		0.22	--
92P02370	12-21	A	S																		0.06	--
92P02371	21-29	E	S																		0.05	--
92P02372	29-47	Bt1	S																		0.05	1
92P02373	47-87	Bt2	S																		0.05	1
92P02374	87-97	2Bt1	S																		0.07	1
92P02375	97-127	2Bt2	S																		0.07	1
92P02376	127-160	2Bt3	S																		0.05	1
92P02377	160-180	2Bt4	S																		0.04	1
92P02378	180-210	3BCt	S																		0.04	1
92P02379	210-218	3BC	S																		0.04	1
92P02380	218-240	4C1	S																		0.03	1
92P02381	240-270	4C2	S																		0.03	2
92P02382	270-348	5C1	S																		0.03	2
92P02383	348-387	5C2	S																		0.03	1
92P02384	387-411	5C3	S																		0.03	1
92P02385	411	5C4	S																		0.03

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

pH  &  Carbonates				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
				(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)						(- - Carbonate - -)		(- - Gypsum - - -)
					CaCl2					As CaCO3		As CaSO4*2H2O		Resist
	Depth				0.01M	H2O	Sat			<2mm	<20mm	<2mm	<20mm	ohms
Layer	(cm)	Horz	Prep	KCl	1:2	1:1	Paste	Oxid	NaF	(- - - - - - - - - - - - % - - - - - - - - - - -)				cm-1
				4C1a2a3	4C1a2a	4C1a2a
92P02369	0-12	Ap	S	4.7	4.8	5.3
92P02370	12-21	A	S	4.9	5.1	5.7
92P02371	21-29	E	S	5.0	5.3	6.0
92P02372	29-47	Bt1	S	5.0	5.6	6.3
92P02373	47-87	Bt2	S	5.3	5.9	6.6
92P02374	87-97	2Bt1	S	4.3	4.8	5.5
92P02375	97-127	2Bt2	S	3.9	4.5	5.2
92P02376	127-160	2Bt3	S	4.1	4.7	5.4
92P02377	160-180	2Bt4	S	4.3	4.9	5.6
92P02378	180-210	3BCt	S	4.5	5.1	5.6
92P02379	210-218	3BC	S	4.2	4.7	5.5
92P02380	218-240	4C1	S	4.3	4.8	5.7
92P02381	240-270	4C2	S	4.5	5.1	5.8
92P02382	270-348	5C1	S	4.5	5.2	6.1
92P02383	348-387	5C2	S	4.5	5.3	6.1
92P02384	387-411	5C3	S	4.8	5.5	6.3
92P02385	411	5C4	S	4.9	4.5	5.0

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

Clay Mineralogy (<.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Elemental

EGME

Inter

SiO2

Al2O3

Fe2O3

MgO

CaO

K2O

Na2O

Retn

preta

Depth

Fract

7A2i

7C3

tion

Layer

(cm)

Horz

ion

( - - - - - - - - - peak size - - - - - - - - - - )

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

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

mg g-1

92P02370

12.0-21.0

A

tcly

KK 3

MI 2

QZ 2

MT 1

24

7.9

1.2

92P02372

29.0-47.0

Bt1

tcly

KK 4

MI 3

MM 1

GE 1

HE 1

26

9.9

1.6

92P02373

47.0-87.0

Bt2

tcly

KK 4

MI 3

MM 2

HE 1

GE 1

26

10.0

1.4

MT 1

92P02374

87.0-97.0

2Bt1

tcly

KK 4

MI 3

MM 1

HE 1

GE 1

26

10.0

1.3

92P02376

127.0-160.0

2Bt3

tcly

KK 4

MI 3

MT 2

GE 2

HE 1

27

10.2

1.2

92P02377

160.0-180.0

2Bt4

tcly

KK 5

MI 3

MT 3

GE 2

HE 1

24

9.2

1.0

92P02378

180.0-210.0

3BCt

tcly

KK 5

MT 3

MI 3

GE 2

QZ 2

24

10.0

1.1

LE 1

HE 1

92P02381

240.0-270.0

4C2

tcly

KK 4

MT 3

MI 2

GE 2

HE 1

21

10.6

0.5

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
GE Goethite	HE Hematite	KK Kaolinite	LE Lepidocrocite	MI Mica
MM Montmorillonite-Mica	MT Montmorillonite	QZ Quartz

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: 91TX395001

( Robertson, Texas )

Print Date: Nov 21 2024 11:35AM

Sampled As	:	Silawa		Fine-loamy, siliceous Ultic Haplustalfs
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  92P0387

---

Sand - Silt Mineralogy (2.0-0.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Optical

EGME

Inter

Tot Re

Grain Count

Retn

preta

Depth

Fract

7B1a2

tion

Layer

(cm)

Horz

ion

( - - - - - - - - peak size - - - - - - - - - )

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

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

mg g-1

92P02372

29.0-47.0

Bt1

fs

94

QZ 94

FK 5

PO tr

BT tr

GS tr

92P02373

47.0-87.0

Bt2

fs

96

QZ 96

FK 4

92P02374

87.0-97.0

2Bt1

fs

96

QZ 96

FK 4

92P02377

160.0-180.0

2Bt4

fs

95

QZ 95

FK 5

OP tr

92P02378

180.0-210.0

3BCt

fs

93

QZ 92

FK 7

BT 1

OP 1

RA tr

92P02381

240.0-270.0

4C2

fs

90

QZ 90

FK 10

OP tr

92P02384

387.0-411.0

5C3

fs

88

QZ 88

FK 10

MS 1

OP tr

RA tr

FRACTION INTERPRETATION:
fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
BT Biotite	FK Potassium Feldspar	GS Glass	MS Muscovite	OP Opaques
PO Plant Opal	QZ Quartz	RA Resistant Aggregates