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:
Webb Station, West Belt, Mariposa Co., California, USA

Oldest recorded age at locality: 170
Youngest recorded age at locality: 170

mindat Locality ID: 248636
mindat URL: http://www.mindat.org/loc-248636.html

Tectonic Settings:

Total number of sublocalities beneath "Webb Station, West Belt, Mariposa Co., California, USA": 14
Total number of bottom-level sublocalities: 14

Number of Child Localities: 14
Child Localities:
Akoz Mine (Asposozien Mine; B.A.B. Mine; Radium Mine)
Antler Claim
Cherokee I Mine
Cotton Creek Deposit
Exchequer Mine
Fitch Mine
Jones Flat Placer
Prouty Ranch Deposit
Three Tree Mine
Unidentified Au Mine Workings [7]
Unnamed Au Mine [40]
Unnamed Au Property [58]
Unnamed Clay Deposit [1]
Unnamed Cr Property [1]

Latitude: 37°35'38"N
Longitude: 120°17'59"W
Decimal Degree (lat, lon): 37.593888888889,-120.29972222222

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.

Baryte	Chalcopyrite	Clay	Copper	Kaolinite	Mica	None	Pyrite	Quartz	Rocksalt
Sphalerite	Talc	Tetrahedrite

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 Au Ba Cu Fe H K Mg O Pb S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Baryte Chalcopyrite Clay Copper Kaolinite Mica None Pyrite Quartz Rocksalt
Sphalerite Talc Tetrahedrite

11 IMA Minerals at location:

Baryte ()*	Chalcopyrite ()*	Galena ()*	Gold ()*	Kaolinite ()*
Muscovite ()*	Pyrite ()*	Quartz ()*	Sphalerite ()*	Talc ()*
Tetrahedrite-(Zn) ()*

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
Baryte ()*	Baryte	Ba(SO₄)	170	170	2	163424,163429	11547
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	170	2	163424,163429	27198
Galena ()*	Rocksalt	PbS	170	170	1	163424	24243
Gold ()*	Copper	Au			3	163426,163428,163432	30554
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	170	170	2	163424,163429	5591
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	170	170	1	163424	17380
Pyrite ()*	Pyrite	FeS₂	170	170	1	163424	39462
Quartz ()*	Quartz	SiO₂			3	163426,163428,163432	61156
Sphalerite ()*	Sphalerite	ZnS	170	170	2	163424,163429	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	163431	3337
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			1	163429	5317

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-01020	170	170	Jurassic										S	81928	Akoz Mine (Asposozien Mine; B.A.B. Mine; Radium Mine), Webb Station, West Belt, Mariposa Co., California, USA	Akoz	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...