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:
Big Bend, Butte Co., California, USA

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

mindat Locality ID: 245635
mindat URL: http://www.mindat.org/loc-245635.html

Tectonic Settings:

Total number of sublocalities beneath "Big Bend, Butte Co., California, USA": 13
Total number of bottom-level sublocalities: 11

Number of Child Localities: 4
Child Localities:
Big Bend Mountain
Clarke Brothers Mine
Dowden Occurrence
Surcease Mine (Bunker Hill Mine; Treasure Hill Mine)

Latitude: 39°42'15"N
Longitude: 121°26'33"W
Decimal Degree (lat, lon): 39.704166666667,-121.4425

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.

Arsenic	Baryte	Bournonite	Chalcopyrite	Clay	Copper	Covellite	Malachite	Marcasite	Nickeline
None	Not in a structural group	Pyrite	Quartz	Rocksalt	Sphalerite	Spinel	Talc	Tetrahedrite

Antimony ()*	Azurite ()*	Baryte ()*	Bornite ()*	Bournonite ()*
Chalcocite ()*	Chalcopyrite ()*	Chromite ()*	Covellite ()*	Galena ()*
Gold ()*	Malachite ()*	Marcasite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Silver ()*	Sphalerite ()*	Talc ()*	Tetrahedrite-(Zn) ()*

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

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Arsenic Baryte Bournonite Chalcopyrite Clay Copper Covellite Malachite Marcasite Nickeline
None Not in a structural group Pyrite Quartz Rocksalt Sphalerite Spinel Talc Tetrahedrite

20 IMA Minerals at location:

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
Antimony ()*	Arsenic	Sb			1	151379	363
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	170	170	1	151369	5509
Baryte ()*	Baryte	Ba(SO₄)	170	170	1	151369	11547
Bornite ()*	None	Cu₅FeS₄	170	170	2	151369,151379	5516
Bournonite ()*	Bournonite	CuPbSbS₃			1	151379	1089
Chalcocite ()*	None	Cu₂S	170	170	1	151369	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	170	2	151369,151379	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄			1	151378	3902
Covellite ()*	Covellite	CuS	170	170	2	151369,151379	4165
Galena ()*	Rocksalt	PbS	170	170	2	151369,151379	24243
Gold ()*	Copper	Au	170	170	6	151369,151370,151372,151375,151377,151379	30554
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	170	170	1	151369	12537
Marcasite ()*	Marcasite	FeS₂			1	151379	5674
Pyrite ()*	Pyrite	FeS₂	170	170	1	151369	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	151379	9056
Quartz ()*	Quartz	SiO₂	170	170	5	151369,151370,151372,151377,151379	61156
Silver ()*	Copper	Ag	170	170	1	151369	5186
Sphalerite ()*	Sphalerite	ZnS	170	170	2	151369,151370	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	151374	3337
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	170	170	1	151369	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-01022	170	170	Jurassic										S	74035	Big Bend Mine (Evening Star Mine; Evening Star Claim; Pinkston Mine), Big Bend Mountain, Big Bend, Butte Co., California, USA	Big Bend	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...