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:
Foothill Copper Belt, Fresno Co., California, USA

Oldest recorded age at locality: 114.1
Youngest recorded age at locality: 109

mindat Locality ID: 251970
mindat URL: http://www.mindat.org/loc-251970.html

Tectonic Settings:

Total number of sublocalities beneath "Foothill Copper Belt, Fresno Co., California, USA": 13
Total number of bottom-level sublocalities: 11

Number of Child Localities: 2
Child Localities:
Table Mountain Rancheria
Wildcat Mountain

Latitude: 36°56'26"N
Longitude: 119°32'38"W
Decimal Degree (lat, lon): 36.940555555556,-119.54388888889

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.

Calcite	Chalcopyrite	Chlorite	Clay	Copper	Nickeline	None	Pyrite	Quartz	Rocksalt
Sphalerite

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 C Cu Fe H Mg O Pb S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Chalcopyrite Chlorite Clay Copper Nickeline None Pyrite Quartz Rocksalt
Sphalerite

11 IMA Minerals at location:

Chalcocite ()*	Chalcopyrite ()*	Clinochlore ()*	Galena ()*	Gold ()*
Magnesite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Silver ()*
Sphalerite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Chalcocite ()*	None	Cu₂S	1	155790	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	155790,155793	27198
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1	155798	1756
Galena ()*	Rocksalt	PbS	2	155790,155793	24243
Gold ()*	Copper	Au	1	155790	30554
Magnesite ()*	Calcite	Mg(CO₃)	3	155797,155799,155801	1487
Pyrite ()*	Pyrite	FeS₂	3	155790,155793,155796	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2	155790,155793	9056
Quartz ()*	Quartz	SiO₂	1	155793	61156
Silver ()*	Copper	Ag	1	155790	5186
Sphalerite ()*	Sphalerite	ZnS	2	155790,155793	21482

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
USGS-U-Th-Pb-00640_206_238	114.1	114.1	114.1	206_238	zircon	Zircon	76330	Grubstake, Wildcat Mountain, Foothill Copper Belt, Fresno Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00640_207_206	109	109	109	207_206	zircon	Zircon	76330	Grubstake, Wildcat Mountain, Foothill Copper Belt, Fresno Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-00640_207_235	113.8	113.8	113.8	207_235	zircon	Zircon	76330	Grubstake, Wildcat Mountain, Foothill Copper Belt, Fresno Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...