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:
Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA

Oldest recorded age at locality: 2400
Youngest recorded age at locality: 1695

mindat Locality ID: 122418
mindat URL: http://www.mindat.org/loc-122418.html

Tectonic Settings:

Total number of sublocalities beneath "Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 43°51'58"N
Longitude: 103°31'56"W
Decimal Degree (lat, lon): 43.866111111111,-103.53222222222

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.

Feldspar	None	Zircon

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 K O Si Zr

Elements from minerals reported directly at this locality: Al K O Si Zr

Structural Groups for minerals in this locality:
Feldspar None Zircon

2 IMA Minerals at location:

Orthoclase ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	1725	1695	0		2349
Zircon ()*	Zircon	Zr(SiO₄)	1718	1712	0		5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000007	consists of a dome-shaped boxwork of sills and dikes with texture variable from fine-grained to pegmatitic, typically layered in texture and composition.
Jen_0000007a	consists of a dome-shaped boxwork of sills and dikes with texture variable from fine-grained to pegmatitic, typically layered in texture and composition.
Jen_0000007b	consists of a dome-shaped boxwork of sills and dikes with texture variable from fine-grained to pegmatitic, typically layered in texture and composition.
Jen_0000007c	consists of a dome-shaped boxwork of sills and dikes with texture variable from fine-grained to pegmatitic, typically layered in texture and composition.

5 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	Dated Mineral	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Alexandra-0372	1700	1700	1700		Age of pegmatite				Li, Be, Sn, Cs, Ta, Nb, U	122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Harney Peak	Norton and Redden (1990)	10.2138/am.2008.2633	AM75_631
Jen_0000007	1725	1695	1710±15	Rb-Sr		high	whole rock			122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Harney Peak	Černý (1991)	10.1016/0301-9268(91)90111-M	PR51_429
Jen_0000007a	1718	1712	1715±3	U-Pb		high	zircon	Zircon		122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Harney Peak	Černý (1991)	10.1016/0301-9268(91)90111-M	PR51_429
Jen_0000007b	2160	2000	2080±80	Rb-Sr						122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Harney Peak	Černý (1991)	10.1016/0301-9268(91)90111-M	PR51_429
Jen_0000007c	2400	2000	2200±200	Sm-Nd						122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Harney Peak	Černý (1991)	10.1016/0301-9268(91)90111-M	PR51_429

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...