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:
Davier Mine, Annie Creek, Bald Mountain District, Lawrence Co., South Dakota, USA

Oldest recorded age at locality: 60
Youngest recorded age at locality: 39

mindat Locality ID: 30932
mindat URL: http://www.mindat.org/loc-30932.html

Tectonic Settings:

Total number of sublocalities beneath "Davier Mine, Annie Creek, Bald Mountain District, Lawrence Co., South Dakota, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 44°19'59"N
Longitude: 103°52'38"W
Decimal Degree (lat, lon): 44.333055555556,-103.87722222222

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	Autunite	Diaspore	Fluorite	None

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: Ba Ca F Fe H O P Si U

Elements from minerals reported directly at this locality: Ba Ca F Fe H O P Si U

Structural Groups for minerals in this locality:
Amorphous Autunite Diaspore Fluorite None

6 IMA Minerals at location:

Autunite ()*	Fluorite ()*	Goethite ()*	Metauranocircite-I ()*	Opal ()*
Uranocircite-II ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	60	39	1272
Fluorite ()*	Fluorite	CaF₂	60	39	9617
Goethite ()*	Diaspore	FeO(OH)	60	39	7437
Metauranocircite-I ()*	None	Ba(UO₂)₂(PO₄)₂·6H₂O	60	39	38
Opal ()*	Amorphous	SiO₂·nH₂O	60	39	2994
Uranocircite-II ()*	None	Ba(UO₂)₂(PO₄)₂·10H₂O	60	39	89

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
	NAVDAT-2705	60	39	49+11/-10					2705						30932	Davier Mine, Annie Creek, Bald Mountain District, Lawrence Co., South Dakota, USA		NAVDAT		NAVDAT
	NAVDAT-92273	54.85	54.47	54.66±0.19					92273						30932	Davier Mine, Annie Creek, Bald Mountain District, Lawrence Co., South Dakota, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...