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:
Tehachapi, Tehachapi Mts, Kern Co., California, USA

Oldest recorded age at locality: 100
Youngest recorded age at locality: 72

mindat Locality ID: 213078
mindat URL: http://www.mindat.org/loc-213078.html

Tectonic Settings:

Total number of sublocalities beneath "Tehachapi, Tehachapi Mts, Kern Co., California, USA": 21
Total number of bottom-level sublocalities: 19

Number of Child Localities: 19
Child Localities:
Buster Tom Prospect (Buster Tom Claim)
Got Rocks Deposit (Wilderness Rock)
K. S. Dixon Wild Cat Mine (Baltic Mine)
Lee Deposit
Los Angeles Aqueduct-South Quarry
Pine Tree Mine (American; Victoria)
Section 13-24 Quarry (Mojave Portland Cement Company Quarry)
Seeger Deposit
Shumaker DG Pit (Buesee Hills Pit)
Summit Lime Company Mine (Summit Lime Quarry; Summit Lime Co. Property; Pine Tree; Wild Cat; B C Mines; BCM Mines; Baltic; Nixon)
Tehachapi Lake Clay Deposit (Tehachapi Lake Clay Deposit No. 1)
Tehachapi Pass
Tehachapi Pit [2]
Tehachapi Pit [3]
Tehachapi Pit [4]
Unnamed Limestone Quarries [3]
Unnamed W Occurrence [9]
Unspecified Hg Mine [2]
Unspecified Sb Occurrence [4]

Latitude: 35°5'38"N
Longitude: 118°26'2"W
Decimal Degree (lat, lon): 35.093888888889,-118.43388888889

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.

Autunite	Clay	Copper	None	Quartz	Scheelite	Smectite-vermiculite	Stibnite

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 Au Ca H Mg Na O P S Sb Si U W

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Autunite Clay Copper None Quartz Scheelite Smectite-vermiculite Stibnite

6 IMA Minerals at location:

Autunite ()*	Gold ()*	Montmorillonite ()*	Quartz ()*	Scheelite ()*
Stibnite ()*

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
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	100	90	1	160398	1272
Gold ()*	Copper	Au	100	90	1	160407	30554
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	100	90	1	160411	1508
Quartz ()*	Quartz	SiO₂	100	90	2	160407,160416	61156
Scheelite ()*	Scheelite	Ca(WO₄)	100	90	2	160407,160416	4894
Stibnite ()*	Stibnite	Sb₂S₃	100	90	1	160418	3418

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Sample Num	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Bradley_2012_156	100	90	95±5	U/Pb	zircon		Yes	Zircon	213077	Tehachapi Mts, Kern Co., California, USA	[Tehachapi Mtns]	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183
NAVDAT-5645	89.1	72.9	81±8.1			5645			213078	Tehachapi, Tehachapi Mts, Kern Co., California, USA		NAVDAT		NAVDAT
NAVDAT-5644	88	72	80±8			5644			80154	K. S. Dixon Wild Cat Mine (Baltic Mine), Tehachapi, Tehachapi Mts, Kern Co., California, USA		NAVDAT		NAVDAT
NAVDAT-5643	89.1	72.9	81±8.1			5643			80480	Shumaker DG Pit (Buesee Hills Pit), Tehachapi, Tehachapi Mts, Kern Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...