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:
Agathla Peak (El Capitan), Mineral Mining District, Navajo Co., Arizona, USA

Oldest recorded age at locality: 180
Youngest recorded age at locality: 180

mindat Locality ID: 310587
mindat URL: http://www.mindat.org/loc-310587.html

Tectonic Settings:

Total number of sublocalities beneath "Agathla Peak (El Capitan), Mineral Mining District, Navajo Co., Arizona, USA": 5
Total number of bottom-level sublocalities: 4

Number of Child Localities: 2
Child Localities:
Channel No. 53 (Paleochannel No. 53)
Koley Black Group (Cold Mesa; Channel No. 37)

Latitude: 36°49'46"N
Longitude: 110°10'6"W
Decimal Degree (lat, lon): 36.829444444444,-110.16833333333

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.

Alunite	Calcite	Clay	Malachite	Mica	None	Not in a structural group

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 C Ca Cu Fe H K O S Si U V

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Calcite Clay Malachite Mica None Not in a structural group

6 IMA Minerals at location:

Azurite ()*	Calcite ()*	Jarosite ()*	Malachite ()*	Muscovite ()*
Tyuyamunite ()*

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
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	180	180	2	143255,143257	5509
Calcite ()*	Calcite	Ca(CO₃)	180	180	3	143255,143256,143257	27770
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	180	180	1	143255	2228
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	180	180	2	143255,143257	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	180	180	1	143255	17380
Tyuyamunite ()*	None	Ca(UO₂)₂(VO₄)₂·5-8H₂O	180	180	1	143258	628

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000992	Uranium mineralization is hosted by the Chinle Formation in the Monument Valley district. The major deposits are particularly found within the Shinarump Member of the Chinle Formation. Uranium deposits are commonly localised at confluences and intersections of channels and/or near bends. This is interpreted to be caused by stronger currents able to cut deep scours in the basement.

1 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	Run 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_00000992	180	180	180							Yes			U	310569	Mineral Mining District, Navajo Co., Arizona, USA	Monument Valley Mining District	Jaireth et al. (2010)		AN97_21	Age of the initial mineralization of U in the district with several following mobilization events

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...