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:
Headwall Prospect, Aniak District, Bethel Census Area, Alaska, USA

Oldest recorded age at locality: 72
Youngest recorded age at locality: 72

mindat Locality ID: 197928
mindat URL: http://www.mindat.org/loc-197928.html

Tectonic Settings:

Total number of sublocalities beneath "Headwall Prospect, Aniak District, Bethel Census Area, Alaska, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 61°39'28"N
Longitude: 159°6'39"W
Decimal Degree (lat, lon): 61.657777777778,-159.11083333333

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.

Arsenic	Arsenopyrite	Chalcopyrite	Clay	Meneghinite	Mica	None	Pyrochlore	Quartz	Rocksalt

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 As Bi Cu Fe H K O Pb S Sb Si

Elements from minerals reported directly at this locality: Al As Bi Cu Fe H K O Pb S Sb Si

Structural Groups for minerals in this locality:
Arsenic Arsenopyrite Chalcopyrite Clay Meneghinite Mica None Pyrochlore Quartz Rocksalt

9 IMA Minerals at location:

Arsenopyrite ()*	Bindheimite ()*	Bismuth ()*	Chalcopyrite ()*	Galena ()*
Muscovite ()*	Pekoite ()*	Quartz ()*	Scorodite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	72	72	9052
Bindheimite ()*	Pyrochlore	Pb₂Sb⁵⁺₂O₇	72	72	450
Bismuth ()*	Arsenic	Bi	72	72	1966
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	72	72	27198
Galena ()*	Rocksalt	PbS	72	72	24243
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	72	72	17380
Pekoite ()*	Meneghinite	CuPbBi₁₁S₁₈	72	72	39
Quartz ()*	Quartz	SiO₂	72	72	61156
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	72	72	1153

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
	Hg-00126	72	72		?-?						Yes		Cinnabar, Metacinnabar	Hg	203058	Aniak District, Bethel Census Area, Alaska, USA		Szumigala (1996)		GODAM3_1317

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...