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:
Virginia Shaft, Nederland District, Boulder Co., Colorado, USA

Oldest recorded age at locality: 1905
Youngest recorded age at locality: 58

mindat Locality ID: 110601
mindat URL: http://www.mindat.org/loc-110601.html

Tectonic Settings:

Total number of sublocalities beneath "Virginia Shaft, Nederland District, Boulder Co., Colorado, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 39°57'0"N
Longitude: 105°32'60"W
Decimal Degree (lat, lon): 39.95,-105.55

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.

No IMA Minerals occur at this locality according to mindat

10 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-32630	68	58	63±5				32630	110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	NAVDAT	NAVDAT
USGS-Rb-Sr-05809	1905	1645	1775±130	Rb-Sr		whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05810	1881.16	1704.4	1792.78±88.38	Rb-Sr		whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05812	1905	1645	1775±130	Rb-Sr		whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05813	1881.16	1704.4	1792.78±88.38	Rb-Sr		whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05814	1514.98	1460.54	1487.76±27.22	Rb-Sr	age of metamorphic crystallization	whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05815	1514.98	1460.54	1487.76±27.22	Rb-Sr	age of metamorphic crystallization	whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05816	1514.98	1460.54	1487.76±27.22	Rb-Sr	age of metamorphic crystallization	whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05817	1514.98	1460.54	1487.76±27.22	Rb-Sr	age of metamorphic crystallization	whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05819	1514.98	1460.54	1487.76±27.22	Rb-Sr	age of metamorphic crystallization	whole rock		110601	Virginia Shaft, Nederland District, Boulder Co., Colorado, USA	USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...