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:
Nemo, Lawrence Co., South Dakota, USA

Oldest recorded age at locality: 1871.18
Youngest recorded age at locality: 1731.18

mindat Locality ID: 234791
mindat URL: http://www.mindat.org/loc-234791.html

Tectonic Settings:

Total number of sublocalities beneath "Nemo, Lawrence Co., South Dakota, USA": 8
Total number of bottom-level sublocalities: 8

Number of Child Localities: 8
Child Localities:
Box Elder Creek
Box Elder Creek (2)
Box Elder Creek (3)
Box Elder Creek (4)
Estes Creek
Little Elk Creek
Roberts Draw
Unnamed Talc Prospect

Latitude: 44°10'45"N
Longitude: 103°29'46"W
Decimal Degree (lat, lon): 44.179166666667,-103.49611111111

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.

Apatite	Calcite	Clay	Clinozoisite	Corundum	Epidote	Malachite	Mica	Nickeline	None
Not in a structural group	Quartz	Rutile	Spinel	Talc	Titanite	Zircon

Calcite ()*	Cuprite ()*	Epidote ()*	Fluorapatite ()*	Ilmenite ()*
Magnetite ()*	Malachite ()*	Muscovite ()*	Pyrrhotite ()*	Quartz ()*
Rutile ()*	Talc ()*	Titanite ()*	Zircon ()*	Zoisite ()*

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 C Ca Cu F Fe H K Mg O P S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Apatite Calcite Clay Clinozoisite Corundum Epidote Malachite Mica Nickeline None
Not in a structural group Quartz Rutile Spinel Talc Titanite Zircon

15 IMA Minerals at location:

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
Calcite ()*	Calcite	Ca(CO₃)			1	265706	27770
Cuprite ()*	Not in a structural group	Cu₂O			1	265699	2970
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1871.18	1731.18	1	265704	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	265706	2740
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	265706	5433
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1871.18	1731.18	2	265699,265704	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	265699	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			2	265703,265705	17380
Pyrrhotite ()*	Nickeline	Fe₇S₈	1871.18	1731.18	1	265704	9056
Quartz ()*	Quartz	SiO₂			1	265700	61156
Rutile ()*	Rutile	TiO₂	1871.18	1731.18	2	265700,265704	5614
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			3	265701,265702,265706	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	1871.18	1731.18	1	265704	4899
Zircon ()*	Zircon	Zr(SiO₄)	1871.18	1731.18	1	265704	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1871.18	1731.18	1	265704	1025

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
USGS-Rb-Sr-04818	1871.18	1731.18	1801.18±70	Rb-Sr	age of metamorphic crystallization	whole rock	122087	Little Elk Creek, Nemo, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04819	1871.18	1731.18	1801.18±70	Rb-Sr	age of metamorphic crystallization	whole rock	122087	Little Elk Creek, Nemo, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-04822	1863.36	1863.36	1863.36	Rb-Sr	age of metamorphic crystallization	whole rock	122087	Little Elk Creek, Nemo, Lawrence Co., South Dakota, USA	USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...