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:
Unnamed Feldspar Occurrence [6], Seven Oaks, San Bernardino Mts, San Bernardino Co., California, USA

Oldest recorded age at locality: 250
Youngest recorded age at locality: 65

mindat Locality ID: 218941
mindat URL: http://www.mindat.org/loc-218941.html

Tectonic Settings:

Total number of sublocalities beneath "Unnamed Feldspar Occurrence [6], Seven Oaks, San Bernardino Mts, San Bernardino Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 34°12'0"N
Longitude: 116°54'4"W
Decimal Degree (lat, lon): 34.2,-116.90111111111

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

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

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

Structural Groups for minerals in this locality:
Feldspar None

1 IMA Minerals at location:

Orthoclase ()*

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)	250	65	0		2349

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Jen_0001547	250	65	65–250		brannerite	Brannerite	218941	Unnamed Feldspar Occurrence [6], Seven Oaks, San Bernardino Mts, San Bernardino Co., California, USA	San Bernardino Mountains	Lumpkin et al. (2012)	10.1016/j.chemgeo.2011.09.008	CG291_55
Jen_0001548	150	150	150		euxinite		218941	Unnamed Feldspar Occurrence [6], Seven Oaks, San Bernardino Mts, San Bernardino Co., California, USA	San Bernardino Mountains	Lumpkin et al. (2012)	10.1016/j.chemgeo.2011.09.008	CG291_55	age is debated due to possible metamorphic alteration and textural similarities
Jen_0001549	220	220	220	U-Th-Pb	brannerite	Brannerite	218941	Unnamed Feldspar Occurrence [6], Seven Oaks, San Bernardino Mts, San Bernardino Co., California, USA	San Bernardino Mountains	Lumpkin et al. (2012)	10.1016/j.chemgeo.2011.09.008	CG291_55

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...