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:
Pecos Mine (Hamilton Mine; Cowles Mine), Willow Creek District, San Miguel Co., New Mexico, USA

Oldest recorded age at locality: 2500
Youngest recorded age at locality: 541

mindat Locality ID: 48271
mindat URL: http://www.mindat.org/loc-48271.html

Tectonic Settings:

Total number of sublocalities beneath "Pecos Mine (Hamilton Mine; Cowles Mine), Willow Creek District, San Miguel Co., New Mexico, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 35°45'32"N
Longitude: 105°40'5"W
Decimal Degree (lat, lon): 35.758888888889,-105.66805555556

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.

Amphibole	Chalcopyrite	Clay	Copper	Corundum	Mica	Nickeline	None	Pyrite	Quartz
Rocksalt	Sphalerite	Spinel

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: Ag Al Au Ca Cu Fe H K Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Ag Al Au Ca Cu Fe H K Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Amphibole Chalcopyrite Clay Copper Corundum Mica Nickeline None Pyrite Quartz
Rocksalt Sphalerite Spinel

12 IMA Minerals at location:

Actinolite ()*	Chalcopyrite ()*	Galena ()*	Gold ()*	Hematite ()*
Magnetite ()*	Muscovite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Silver ()*	Sphalerite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	2500	541	3419
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2500	541	27198
Galena ()*	Rocksalt	PbS	2500	541	24243
Gold ()*	Copper	Au	2500	541	30554
Hematite ()*	Corundum	Fe₂O₃	2500	541	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2500	541	14899
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2500	541	17380
Pyrite ()*	Pyrite	FeS₂	2500	541	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2500	541	9056
Quartz ()*	Quartz	SiO₂	2500	541	61156
Silver ()*	Copper	Ag	2500	541	5186
Sphalerite ()*	Sphalerite	ZnS	2500	541	21482

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
	vms-01068	2500	541	Proterozoic											48271	Pecos Mine (Hamilton Mine; Cowles Mine), Willow Creek District, San Miguel Co., New Mexico, USA	Pecos	Moiser et al. (2009)		USGSOFR2009-1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...