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:
Kilbourne Hole, Doña Ana Co., New Mexico, USA

Oldest recorded age at locality: 1990
Youngest recorded age at locality: 0

mindat Locality ID: 21970
mindat URL: http://www.mindat.org/loc-21970.html

Tectonic Settings:

Total number of sublocalities beneath "Kilbourne Hole, Doña Ana Co., New Mexico, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 31°58'19"N
Longitude: 106°57'53"W
Decimal Degree (lat, lon): 31.971944444444,-106.96472222222

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	Not in a structural group	Olivine	Pyroxene	Spinel

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 Ca Fe Mg O Si

Elements from minerals reported directly at this locality: Al Ca Fe Mg O Si

Structural Groups for minerals in this locality:
Feldspar None Not in a structural group Olivine Pyroxene Spinel

8 IMA Minerals at location:

Anorthite ()*	Augite ()*	Diopside ()*	Enstatite ()*	Forsterite ()*
Hercynite ()*	Sillimanite ()*	Spinel ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	# of localities containing mineral
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1990	1036
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1990	2060
Diopside ()*	Pyroxene	CaMgSi₂O₆	1990	4135
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	1990	944
Forsterite ()*	Olivine	Mg₂(SiO₄)	1990	1188
Hercynite ()*	Spinel	Fe²⁺Al₂O₄	1990	407
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1990	1516
Spinel ()*	Spinel	MgAl₂O₄	1990	1934

6 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-50682	0.08	0	0.04±0.04				50682	21970	Kilbourne Hole, Doña Ana Co., New Mexico, USA	NAVDAT	NAVDAT
USGS-Rb-Sr-06804	1990	1790	1890±100	Rb-Sr	age of metamorphic crystallization	whole rock		21970	Kilbourne Hole, Doña Ana Co., New Mexico, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06805	1990	1790	1890±100	Rb-Sr	age of metamorphic crystallization	whole rock		21970	Kilbourne Hole, Doña Ana Co., New Mexico, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06806	1990	1790	1890±100	Rb-Sr	age of metamorphic crystallization	whole rock		21970	Kilbourne Hole, Doña Ana Co., New Mexico, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06807	1990	1790	1890±100	Rb-Sr	age of metamorphic crystallization	whole rock		21970	Kilbourne Hole, Doña Ana Co., New Mexico, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-06808	1990	1790	1890±100	Rb-Sr	age of metamorphic crystallization	whole rock		21970	Kilbourne Hole, Doña Ana Co., New Mexico, USA	USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL
FKM-162	Kilbourne Hole, Doña Ana Co., New Mexico, USA	https://www.rockptx.com/fkm-151-to-fkm-175/#FKM-162

All locality data graciously provided by mindat.org

All age data...