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:
Chinese Station, Tuolumne Co., California, USA

Oldest recorded age at locality: 281
Youngest recorded age at locality: 281

mindat Locality ID: 123064
mindat URL: http://www.mindat.org/loc-123064.html

Tectonic Settings:

Total number of sublocalities beneath "Chinese Station, Tuolumne Co., California, USA": 11
Total number of bottom-level sublocalities: 11

Number of Child Localities: 11
Child Localities:
Burns And Turzich Mine (Burns And Tarzich Mine)
Eggling And Williams Mines (Mariano Ranch)
Leonard Le Pappe Mine (Leonard Le Pappe Prospect)
Mariano Ranch Occurrence
Monarch Prospect (Monarch Claim)
Perconi Ranch Deposits (Perconi Ranch Mine; Cherry Creek Mine; Whittle Property)
Peter Maki Deposit (Sunshine Claim; Snowdrift Claim)
Sims Property (Sims Mine)
Unknown Cr Claim [2]
Unnamed Cr Mines [1] (Reported Mines)
White Rock Mine

Latitude: 37°52'24"N
Longitude: 120°27'40"W
Decimal Degree (lat, lon): 37.873333333333,-120.46111111111

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.

Amorphous	Calcite	Chlorite	Clay	None	Pyroxene	Spinel	Talc

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 Cr H Mg O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Calcite Chlorite Clay None Pyroxene Spinel Talc

6 IMA Minerals at location:

Clinochlore ()*	Enstatite ()*	Magnesiochromite ()*	Magnesite ()*	Opal ()*
Talc ()*

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
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			1	182781	1756
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			1	182781	944
Magnesiochromite ()*	Spinel	MgCr₂O₄	281	281	5	182780,182781,182782,182785,182787	311
Magnesite ()*	Calcite	Mg(CO₃)			3	182784,182786,182790	1487
Opal ()*	Amorphous	SiO₂·nH₂O			1	182790	2994
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	281	281	1	182785	3337

2 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
	podchrome-00089	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)										Cr	98077	Perconi Ranch Deposits (Perconi Ranch Mine; Cherry Creek Mine; Whittle Property), Chinese Station, Tuolumne Co., California, USA	Perconi Ranch	Moiser et al. (2012)		USGSSIR2012_5157
	podchrome-00090	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)										Cr	98199	Sims Property (Sims Mine), Chinese Station, Tuolumne Co., California, USA	Sims Property	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...