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:
Meade Co., South Dakota, USA

Oldest recorded age at locality: 83.6
Youngest recorded age at locality: 46

mindat Locality ID: 4116
mindat URL: http://www.mindat.org/loc-4116.html

Tectonic Settings:

Total number of sublocalities beneath "Meade Co., South Dakota, USA": 26
Total number of bottom-level sublocalities: 21

Number of Child Localities: 18
Child Localities:
Bear Butte
Crystal Cave (Bethlehem Cave)
Dakota Plaster Company Pit (U.S. Gypsum Company Blackhawk Operation)
Dalzell
Doyle Lime Plant And Quarry (W. V. Doyle Plant)
Elm Springs
Hay Draw
Ice Cave
Maurine
Piedmont
S. Dak Cement Company Gypsum Quarry
Stagebarn Caverns
Sturgis
Tilford
Union Center
Unorganized District
Whitewood Creek
Wonderland Cave

Latitude: 44°21'8"N
Longitude: 103°11'37"W
Decimal Degree (lat, lon): 44.352222222222,-103.19361111111

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	Aragonite	Baryte	Beryl	Calcite	Diaspore	Gypsum	Marcasite	None	Not in a structural group
Oxalate	Quartz	Rocksalt	Tridymite

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 Ba Be C Ca Cl Fe H Mg Na O S Si

Elements from minerals reported directly at this locality: Al Be C Ca Mg O S Si

Structural Groups for minerals in this locality:
Amorphous Aragonite Baryte Beryl Calcite Diaspore Gypsum Marcasite None Not in a structural group
Oxalate Quartz Rocksalt Tridymite

14 IMA Minerals at location:

Anhydrite ()*	Aragonite ()*	Baryte ()*	Beryl ()*	Calcite ()*
Dolomite ()*	Goethite ()*	Gypsum ()*	Halite ()*	Ice ()*
Marcasite ()*	Quartz ()*	Siderite ()*	Whewellite ()*

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
Anhydrite ()*	Not in a structural group	Ca(SO₄)	83.6	46	0		1588
Aragonite ()*	Aragonite	Ca(CO₃)	83.6	46	3	265873,265885,265897	3250
Baryte ()*	Baryte	Ba(SO₄)	83.6	72.1	4	265876,265879,265887,265890	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	83.6	46	0		4286
Calcite ()*	Calcite	Ca(CO₃)	83.6	72.1	5	265873,265876,265879,265885,265897	27770
Dolomite ()*	None	CaMg(CO₃)₂	83.6	46	0		9895
Goethite ()*	Diaspore	FeO(OH)	58	46	3	265872,265873,265885	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	83.6	72.1	4	265876,265879,265894,265895	6890
Halite ()*	Rocksalt	NaCl	83.6	46	1	265883	1398
Ice ()*	Amorphous Tridymite	H₂O	83.6	46	1	265880	59
Marcasite ()*	Marcasite	FeS₂	83.6	72.1	1	265876	5674
Quartz ()*	Quartz	SiO₂	83.6	46	2	265882,265883	61156
Siderite ()*	Calcite	Fe(CO₃)	83.6	46	1	265873	6417
Whewellite ()*	Oxalate	Ca(C₂O₄)·H₂O	83.6	72.1	2	265876,265878	66

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_575	Concretions bearing whewellite are found in the Gregory Member of the Pierre Shale, Meade County, South Dakota . They have been reported at Elm Springs, Elk Creek and along the Cheyenne River. Concretions are described as septarian limestone and often fossiliferous, from 30 cm to a few meters in diameter.

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
	Michelle_575	83.6	72.1	Campanian	stratigraphy	Age of the Gregory Member of the Pierre Shale	high						Whewellite		4116	Meade Co., South Dakota, USA	Meade County	Campbell and Roberts (1986)		MR17_131	Age of the Gregory member of the Cretaceous Pierre shale (from Hanczaryk & Gallagher (2007)).
	NAVDAT-92274	58	46	52±6					92274						44879	Bear Butte, Meade Co., South Dakota, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...