Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Echo Cliffs (Base Of Echo Cliffs Bentonite Deposit; Echo Cliffs Clay Deposit), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA

Oldest recorded age at locality: 1480
Youngest recorded age at locality: 94

mindat Locality ID: 47213
mindat URL: http://www.mindat.org/loc-47213.html

Tectonic Settings:

Total number of sublocalities beneath "Echo Cliffs (Base Of Echo Cliffs Bentonite Deposit; Echo Cliffs Clay Deposit), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 36°24'45"N
Longitude: 111°31'30"W
Decimal Degree (lat, lon): 36.4125,-111.525

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Clay	None	Smectite-vermiculite

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ca H Na O Si

Elements from minerals reported directly at this locality: Al Ca H Na O Si

Structural Groups for minerals in this locality:
Clay None Smectite-vermiculite

1 IMA Minerals at location:

Beidellite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Beidellite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3Al₂(Si,Al)₄O₁₀(OH)₂·nH₂O	223	94	0		85

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000574	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000575	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000576	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000577	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000578	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000579	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000580	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000581	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000582	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000583	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000584	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones
Giersdorf_00000585	Pitchblende (uraninite) ore disseminated through Upper Triassic Sandstones

12 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Giersdorf_00000577	132	124	128±4	238U-206U			uraninite	K-178	Yes	Uraninite	Uraninite	U	43065	Alyce Tolino Mine, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U238-Pb206 analysis
Giersdorf_00000578	223	213	218±5	235U-207Pb			uraninite	K-178	Yes	Uraninite	Uraninite	U	43065	Alyce Tolino Mine, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U235-Pb207 analysis
Giersdorf_00000579	1480	1320	1400±80	207Pb-206Pb	The Pb207-Pb206 age given for these samples is described as being highly erroneous due to the systematic sensitivity of the analytic methods	low	uraninite	K-178	Yes	Uraninite	Uraninite	U	43065	Alyce Tolino Mine, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for Pb207-Pb206 analysis
Giersdorf_00000574	181	161	171±10	238U-206U			uraninite	K-151	Yes	Uraninite	Uraninite	U	19006	Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U238-Pb206 analysis
Giersdorf_00000575	217	197	207±10	235U-207Pb			uraninite	K-151	Yes	Uraninite	Uraninite	U	19006	Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U235-Pb207 analysis
Giersdorf_00000576	730	650	690±40	207Pb-206Pb	The Pb207-Pb206 age given for these samples is described as being highly erroneous due to the systematic sensitivity of the analytic methods	low	uraninite	K-151	Yes	Uraninite	Uraninite	U	19006	Huskon No. 7 Mine (Huskon No. 7 - Yazzie No. 102 Mine; Yazzie No. 102 Mine), Huskon Mines, Cameron, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for Pb207-Pb206 analysis
Giersdorf_00000580	102	94	98±4	238U-206U			uraninite	K-183a	Yes	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U238-Pb206 analysis
Giersdorf_00000581	155	145	150±5	235U-207Pb			uraninite	K-183a	Yes	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U235-Pb207 analysis
Giersdorf_00000583	166	158	162±4	238U-206U			uraninite	K-183b	Yes	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U238-Pb206 analysis
Giersdorf_00000582	1170	1090	1130±40	207Pb-206Pb	The Pb207-Pb206 age given for these samples is described as being highly erroneous due to the systematic sensitivity of the analytic methods	low	uraninite	K-183a	Yes	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for Pb207-Pb206 analysis
Giersdorf_00000584	200	190	195±5	235U-207Pb			uraninite	K-183b	Yes	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for U235-Pb207 analysis
Giersdorf_00000585	830	730	780±50	207Pb-206Pb	The Pb207-Pb206 age given for these samples is described as being highly erroneous due to the systematic sensitivity of the analytic methods	low	uraninite	K-183b	Yes	Uraninite	Uraninite	U	52997	Ramco No. 20 Mine (Ramco No. 20 Claim), Cameron Area, Cameron Mining District, Coconino Co., Arizona, USA	Cameron	Miller et al. (1963)	10.1130/0016-7606(1963)74[609:IEOTOO]2.0.CO;2	GSAB74_609	Age given for Pb207-Pb206 analysis

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...