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:
Valdez Creek District, Southeast Fairbanks Census Area, Alaska, USA

mindat Locality ID: 203139
mindat URL: http://www.mindat.org/loc-203139.html

Tectonic Settings:

Total number of sublocalities beneath "Valdez Creek District, Southeast Fairbanks Census Area, Alaska, USA": 19
Total number of bottom-level sublocalities: 19

Number of Child Localities: 19
Child Localities:
Azurite Occurrence
Bird Beak Prospect
Boulder Creek Occurrence (Seven Mile Claims)
Cleopatra Prospect
East Fork Maclaren River Prospect
Greenstone Occurrence Occurrence
Maclaren Glacier Lode Prospect
Moneta-Porcupine Prospect
Richards Occurrence
Sunshine; Greentree Prospect
Unnamed Occurrence (ARDF - HE117; Between Upper West Fork And Yanert Glaciers)
Unnamed Occurrence (ARDF - MH076; South Of Upper Sevenmile Lake)
Unnamed Occurrence (ARDF - MH091; West Of Lower Eureka Glacier)
Unnamed Occurrence (ARDF - MH092; West Of Lower Eureka Glacier)
Unnamed Occurrence (ARDF - MH093; West Of Eureka Glacier)
Unnamed Occurrence (ARDF - MH095; North Of Upper East Fork Maclaren River)
Unnamed Occurrence (ARDF - MH096; West Of The Terminus Of Eureka Glacier)
Unnamed Prospect (ARDF - HE114; West Of Lower West Fork Glacier)
Unnamed Prospect (ARDF - HE118; Southeast Of Hess Mountain)

Latitude: 63°19'31"N
Longitude: 146°35'26"W
Decimal Degree (lat, lon): 63.325277777778,-146.59055555556

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.

Amorphous	Calcite	Chalcopyrite	Clinozoisite	Copper	Epidote	Malachite	Melonite	Nickeline	None
Not in a structural group	Pentlandite	Pyrite	Pyroxene	Quartz	Sphalerite	Spinel

Azurite ()*	Bornite ()*	Calcite ()*	Chalcocite ()*	Chalcopyrite ()*
Chromite ()*	Cuprite ()*	Diopside ()*	Epidote ()*	Gold ()*
Magnetite ()*	Malachite ()*	Moncheite ()*	Opal ()*	Pentlandite ()*
Platinum ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Sphalerite ()*

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: Al Au Bi C Ca Cr Cu Fe H Mg Ni O Pt S Si Te Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Calcite Chalcopyrite Clinozoisite Copper Epidote Malachite Melonite Nickeline None
Not in a structural group Pentlandite Pyrite Pyroxene Quartz Sphalerite Spinel

20 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	3	134069,134075,134080	5509
Bornite ()*	None	Cu₅FeS₄	3	134074,134076,134080	5516
Calcite ()*	Calcite	Ca(CO₃)	2	134075,134080	27770
Chalcocite ()*	None	Cu₂S	1	134074	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	12	134069,134070,134072,134074,134075,134076,134079,134080,134083,134084,134085,134087	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	3	134070,134082,134083	3902
Cuprite ()*	Not in a structural group	Cu₂O	1	134078	2970
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	134075	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	4	134074,134077,134078,134080	8173
Gold ()*	Copper	Au	3	134071,134073,134075	30554
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	3	134070,134075,134083	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	5	134074,134075,134076,134078,134080	12537
Moncheite ()*	Melonite	Pt(Te,Bi)₂	1	134070	133
Opal ()*	Amorphous	SiO₂·nH₂O	1	134084	2994
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2	134070,134083	1512
Platinum ()*	Copper	Pt	1	134073	485
Pyrite ()*	Pyrite	FeS₂	3	134069,134080,134084	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	4	134070,134072,134083,134085	9056
Quartz ()*	Quartz	SiO₂	6	134074,134077,134078,134080,134081,134086	61156
Sphalerite ()*	Sphalerite	ZnS	1	134075	21482

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...