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:
Parkhill, Butte Co., California, USA

Oldest recorded age at locality: 185
Youngest recorded age at locality: 165

mindat Locality ID: 245590
mindat URL: http://www.mindat.org/loc-245590.html

Tectonic Settings:

Total number of sublocalities beneath "Parkhill, Butte Co., California, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Clark Chrome Mine (Clark Mine; David Mine; War Eagle Mine; War Eagle Deposit; War Eagle And Miller Deposits; Mountain Of Chrome Claims [?])
Dorothy Placer Mine
Hendricks No. 1 Mine (Hendricks Prospect)
Poe Limestone Deposit No. 2 (King)
Poe Mine (Poe Limestone Deposit)
Unnamed Au Mine (15)
Unnamed Placer Au Mine (56)

Latitude: 39°43'43"N
Longitude: 121°28'48"W
Decimal Degree (lat, lon): 39.728611111111,-121.48

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.

Clay	Copper	None	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: Au Cr Fe H Mg O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Clay Copper None Spinel Talc

4 IMA Minerals at location:

Chromite ()*	Gold ()*	Magnesiochromite ()*	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
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	185	165	1	151774	3902
Gold ()*	Copper	Au	185	165	3	151773,151774,151778	30554
Magnesiochromite ()*	Spinel	MgCr₂O₄	185	165	1	151772	311
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	185	165	1	151772	3337

9 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-02573_206_238	165	165	165	206_238	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02573_207_206	169	169	169	207_206	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02573_207_235	165	165	165	207_235	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02574_206_238	173	173	173	206_238	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02574_207_206	179	179	179	207_206	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02574_207_235	173	173	173	207_235	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02575_206_238	181	181	181	206_238	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02575_207_206	185	185	185	207_206	zircon	Zircon	245590	Parkhill, Butte Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02575_207_235	182	182	182	207_235	zircon	Zircon	245590	Parkhill, Butte 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...