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:
Hawkinsville, Klamath Mts, Siskiyou Co., California, USA

Oldest recorded age at locality: 167
Youngest recorded age at locality: 145

mindat Locality ID: 218971
mindat URL: http://www.mindat.org/loc-218971.html

Tectonic Settings:

Total number of sublocalities beneath "Hawkinsville, Klamath Mts, Siskiyou Co., California, USA": 24
Total number of bottom-level sublocalities: 24

Number of Child Localities: 24
Child Localities:
Big Boulder Placer Mine
Blue John Placer Mine
Brazil Placer
Cardozo Mine
Espey Mining Company No. 2 Mine
Fairchild Mine (Fairchild Prospect)
Gold Bar Mine
Hawkinsville Flat Placer Mine
Island Bar Placer Mine
Jehovah Mine
Kanaka Placer Mine
Lang Property
Leal Placer Mine (Big Joe Mine)
Little Bonsa Mine (Lodge Mine)
Long Gulch Mine (Gold Leaf Mine)
O'Donnell Placer Mine
Rainbow Mine
Red Hill Mine (Gardener Mine)
Rocky Gulch Placer Mine
Spring Gulch Mine
Unnamed Au Mine (113)
Unnamed Au Mine (154)
Unnamed Au Mine (78)
Yreka Gold Dredging Company Mine

Latitude: 41°46'10"N
Longitude: 122°38'12"W
Decimal Degree (lat, lon): 41.769444444444,-122.63666666667

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	Quartz	Spinel

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 O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Copper None Quartz Spinel

3 IMA Minerals at location:

Chromite ()*	Gold ()*	Quartz ()*

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	167	145	1	179055	3902
Gold ()*	Copper	Au	167	145	18	179044,179045,179046,179048,179049,179050,179051,179052,179053,179054,179056,179057,179059,179061,179062,179063,179066,179067	30554
Quartz ()*	Quartz	SiO₂	167	145	7	179049,179050,179053,179057,179061,179063,179066	61156

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Kristen002448	Nevadan Orogeny includes the Kalamath Mountains

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
	Kristen002448	167	145	Middle to Early Jurassic							Yes				4064	Josephine Creek Placers, Josephine Creek District, Josephine Co., Oregon, USA	Nevadan Orogeny, Josephine Creek placers	Lanphere et al. (1968)	10.1130/0016-7606(1968)79[1027:IAOTNO]2.0.CO;2	GSAB79_1027

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...