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:
Girvan, Redding District, Shasta Co., California, USA

mindat Locality ID: 238649
mindat URL: http://www.mindat.org/loc-238649.html

Tectonic Settings:

Total number of sublocalities beneath "Girvan, Redding District, Shasta Co., California, USA": 14
Total number of bottom-level sublocalities: 14

Number of Child Localities: 14
Child Localities:
Carlson Placer Mine (Sandburg)
Clear Creek Placer Mine (Gardella Mine)
Dawson Gulch Placer Mine
Dobson Gulch Placer Mine
Griffith Dragline Placer
Homestead Placer Mine
Isabel Placer Mine
Manzanita Occurrence
Olson Dredge Mine
Sunshine Placer Mine
Thurman Gold Dredging Company Mine
Unnamed Au Occurrence (23)
Unnamed Au Occurrence (32)
Woolseg Placer Mine

Latitude: 40°30'32"N
Longitude: 122°25'"W
Decimal Degree (lat, lon): 40.508888888889,-122.41666666667

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.

Copper	None

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 Pt

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Copper None

2 IMA Minerals at location:

Gold ()*	Platinum ()*

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
Gold ()*	Copper	Au			12	177179,177180,177181,177182,177183,177184,177185,177187,177188,177189,177190,177192	30554
Platinum ()*	Copper	Pt			1	177180	485

No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

All age data...