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:
Continental Chief Mine, Dyer Mountain, Horseshoe District, Mosquito Range, Lake Co., Colorado, USA

Oldest recorded age at locality: 45.1
Youngest recorded age at locality: 39.9

mindat Locality ID: 46640
mindat URL: http://www.mindat.org/loc-46640.html

Tectonic Settings:

Total number of sublocalities beneath "Continental Chief Mine, Dyer Mountain, Horseshoe District, Mosquito Range, Lake Co., Colorado, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 39°13'57"N
Longitude: 106°10'31"W
Decimal Degree (lat, lon): 39.2325,-106.17527777778

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.

Aragonite	Baryte	Calcite	Clay	Copper	Malachite	None	Not in a structural group	Pyrite	Rocksalt
Smectite-vermiculite	Sphalerite	Tetrahedrite

Aurichalcite ()*	Azurite ()*	Baryte ()*	Cerussite ()*	Dolomite ()*
Galena ()*	Hemimorphite ()*	Hydrozincite ()*	Malachite ()*	Pyrite ()*
Rosasite ()*	Sauconite ()*	Silver ()*	Smithsonite ()*	Sphalerite ()*
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 Ba C Ca Cu Fe H Mg Na O Pb S Sb Si Zn

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

Structural Groups for minerals in this locality:
Aragonite Baryte Calcite Clay Copper Malachite None Not in a structural group Pyrite Rocksalt
Smectite-vermiculite Sphalerite Tetrahedrite

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆	45.1	39.9	919
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	45.1	39.9	5509
Baryte ()*	Baryte	Ba(SO₄)	45.1	39.9	11547
Cerussite ()*	Aragonite	Pb(CO₃)	45.1	39.9	4979
Dolomite ()*	None	CaMg(CO₃)₂	45.1	39.9	9895
Galena ()*	Rocksalt	PbS	45.1	39.9	24243
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	45.1	39.9	1689
Hydrozincite ()*	None	Zn₅(CO₃)₂(OH)₆	45.1	39.9	1066
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	45.1	39.9	12537
Pyrite ()*	Pyrite	FeS₂	45.1	39.9	39462
Rosasite ()*	Malachite	CuZn(CO₃)(OH)₂	45.1	39.9	454
Sauconite ()*	Clay Smectite-vermiculite	Na_0.3Zn₃(Si,Al)₄O₁₀(OH)₂·4H₂O	45.1	39.9	56
Silver ()*	Copper	Ag	45.1	39.9	5186
Smithsonite ()*	Calcite	Zn(CO₃)	45.1	39.9	2473
Sphalerite ()*	Sphalerite	ZnS	45.1	39.9	21482
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	45.1	39.9	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
	sedznpb-00489	45.1	39.9	42.5±2.6							Yes				5991	Sherman Mine (Sherman Tunnel; Leadville Corporation Mine; Day Mines; Hilltop Mine), Upper Iowa Gulch, Leadville District, Lake Co., Colorado, USA	Sherman	Singer et al. (2009)		USGSOFR2009-1252

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...