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:
Afterthought Mine, Ingot, East Shasta Copper - Zinc District, Klamath Mts, Shasta Co., California, USA

Oldest recorded age at locality: 260
Youngest recorded age at locality: 260

mindat Locality ID: 27934
mindat URL: http://www.mindat.org/loc-27934.html

Tectonic Settings: Continental Arc

Total number of sublocalities beneath "Afterthought Mine, Ingot, East Shasta Copper - Zinc District, Klamath Mts, Shasta Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 40°44'0"N
Longitude: 122°5'"W
Decimal Degree (lat, lon): 40.733333333333,-122.08333333333

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.

Baryte	Calcite	Chalcopyrite	Clay	Copper	Covellite	Digenite	Malachite	Mica	None
Not in a structural group	Pyrite	Quartz	Rocksalt	Sphalerite	Stannite	Tetrahedrite

Azurite ()*	Baryte ()*	Bornite ()*	Calcite ()*	Chalcocite ()*
Chalcopyrite ()*	Covellite ()*	Digenite ()*	Dolomite ()*	Galena ()*
Luzonite ()*	Malachite ()*	Muscovite ()*	Pyrite ()*	Quartz ()*
Silver ()*	Sphalerite ()*	Tenorite ()*	Tetrahedrite-(Zn) ()*

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: Ag Al As Ba C Ca Cu Fe H K Mg O Pb S Sb Si Zn

Elements from minerals reported directly at this locality: Ag Al As Ba C Ca Cu Fe H K Mg O Pb S Sb Si Zn

Structural Groups for minerals in this locality:
Baryte Calcite Chalcopyrite Clay Copper Covellite Digenite Malachite Mica None
Not in a structural group Pyrite Quartz Rocksalt Sphalerite Stannite Tetrahedrite

19 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	260	260	5509
Baryte ()*	Baryte	Ba(SO₄)	260	260	11547
Bornite ()*	None	Cu₅FeS₄	260	260	5516
Calcite ()*	Calcite	Ca(CO₃)	260	260	27770
Chalcocite ()*	None	Cu₂S	260	260	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	260	260	27198
Covellite ()*	Covellite	CuS	260	260	4165
Digenite ()*	Digenite	Cu_1.8S	260	260	1027
Dolomite ()*	None	CaMg(CO₃)₂	260	260	9895
Galena ()*	Rocksalt	PbS	260	260	24243
Luzonite ()*	Stannite Sphalerite	Cu₃AsS₄	260	260	198
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	260	260	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	260	260	17380
Pyrite ()*	Pyrite	FeS₂	260	260	39462
Quartz ()*	Quartz	SiO₂	260	260	61156
Silver ()*	Copper	Ag	260	260	5186
Sphalerite ()*	Sphalerite	ZnS	260	260	21482
Tenorite ()*	None	CuO	260	260	1101
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	260	260	5317

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
	vms-01019	260	260	Late Permian										S	27934	Afterthought Mine, Ingot, East Shasta Copper - Zinc District, Klamath Mts, Shasta Co., California, USA	Afterthought	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...