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:
Davenport Mine, Auburn, Ophir District (Auburn District; Duncan Hill District), Placer Co., California, USA

Oldest recorded age at locality: 132
Youngest recorded age at locality: 132

mindat Locality ID: 85233
mindat URL: http://www.mindat.org/loc-85233.html

Tectonic Settings:

Total number of sublocalities beneath "Davenport Mine, Auburn, Ophir District (Auburn District; Duncan Hill District), Placer Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°53'19"N
Longitude: 121°3'55"W
Decimal Degree (lat, lon): 38.888611111111,-121.06527777778

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.

Chalcopyrite	Malachite	None	Pyrite	Quartz

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: C Cu Fe H O S Si

Elements from minerals reported directly at this locality: C Cu Fe H O S Si

Structural Groups for minerals in this locality:
Chalcopyrite Malachite None Pyrite Quartz

4 IMA Minerals at location:

Chalcopyrite ()*	Malachite ()*	Pyrite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	132	132	27198
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	132	132	12537
Pyrite ()*	Pyrite	FeS₂	132	132	39462
Quartz ()*	Quartz	SiO₂	132	132	61156

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
	USGS-Rb-Sr-05952	132	132	132	Rb-Sr	age not evaluated		whole rock							85233	Davenport Mine, Auburn, Ophir District (Auburn District; Duncan Hill District), Placer Co., California, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...