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:
Seiad Creek Mine (No. 14 Mine; Northern Klamath Mountains Mine; Red Hills Mine; Reddy No. 2 Mine; Teddy Chrome Mine; Valley View; Mountain View), Copper Butte, Klamath Mts, Siskiyou Co., California, USA

Oldest recorded age at locality: 200
Youngest recorded age at locality: 145

mindat Locality ID: 95164
mindat URL: http://www.mindat.org/loc-95164.html

Tectonic Settings: Oceanic Arc (Subduction)

Total number of sublocalities beneath "Seiad Creek Mine (No. 14 Mine; Northern Klamath Mountains Mine; Red Hills Mine; Reddy No. 2 Mine; Teddy Chrome Mine; Valley View; Mountain View), Copper Butte, Klamath Mts, Siskiyou Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 41°54'35"N
Longitude: 123°8'34"W
Decimal Degree (lat, lon): 41.909722222222,-123.14277777778

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.

Amphibole	Calcite	Clay	Garnet	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: C Ca Cr Fe H Mg O Si

Elements from minerals reported directly at this locality: C Ca Cr Fe H Mg O Si

Structural Groups for minerals in this locality:
Amphibole Calcite Clay Garnet None Spinel Talc

6 IMA Minerals at location:

Anthophyllite ()*	Magnesiochromite ()*	Magnesite ()*	Talc ()*	Tremolite ()*
Uvarovite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	200	200	718
Magnesiochromite ()*	Spinel	MgCr₂O₄	200	200	311
Magnesite ()*	Calcite	Mg(CO₃)	200	200	1487
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	200	200	3337
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	200	200	2562
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃	200	200	212

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Kristen002448	Nevadan Orogeny includes the Kalamath Mountains

2 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
	podchrome-00288	200	200	Triassic-Jurassic (225-180 Ma)										Cr	95164	Seiad Creek Mine (No. 14 Mine; Northern Klamath Mountains Mine; Red Hills Mine; Reddy No. 2 Mine; Teddy Chrome Mine; Valley View; Mountain View), Copper Butte, Klamath Mts, Siskiyou Co., California, USA	Seiad Creek	Moiser et al. (2012)		USGSSIR2012_5157
	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...