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 Mts, Kern Co., California, USA

Oldest recorded age at locality: 113.1
Youngest recorded age at locality: 72

mindat Locality ID: 213077
mindat URL: http://www.mindat.org/loc-213077.html

Tectonic Settings:

Total number of sublocalities beneath "Tehachapi Mts, Kern Co., California, USA": 77
Total number of bottom-level sublocalities: 64

Number of Child Localities: 9
Child Localities:
Elderberry Springs
Gorman District
Liebre Twins
Monolith (Manolith)
Purdie Ridge
Tehachapi
Tunis Creek
Twin Lakes
Woodford

Latitude: 34°59'28"N
Longitude: 118°33'43"W
Decimal Degree (lat, lon): 34.991111111111,-118.56194444444

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.

Allophane	Alunite	Aragonite	Arsenopyrite	Autunite	Baryte	Calcite	Chalcopyrite	Clay	Clinozoisite
Copper	Corundum	Epidote	Garnet	Ludwigite	Malachite	Mica	Molybdenite	None	Not in a structural group
Pyrite	Quartz	Rhodonite	Rocksalt	Rutile	Scheelite	Smectite-vermiculite	Spinel	Stibnite

Almandine ()*	Arsenopyrite ()*	Autunite ()*	Baryte ()*	Calcite ()*
Cassiterite ()*	Chalcopyrite ()*	Chrysocolla ()*	Cinnabar ()*	Copper ()*
Cuprite ()*	Epidote ()*	Galena ()*	Gibbsite ()*	Gold ()*
Halite ()*	Hematite ()*	Jarosite ()*	Ludwigite ()*	Maghemite ()*
Magnetite ()*	Malachite ()*	Molybdenite ()*	Montmorillonite ()*	Muscovite ()*
Niter ()*	Powellite ()*	Pyrite ()*	Quartz ()*	Rhodonite ()*
Scheelite ()*	Scorodite ()*	Smithsonite ()*	Stibnite ()*	Strontianite ()*
Vermiculite ()*	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 As Au B Ba C Ca Cl Cu Fe H Hg K Mg Mn Mo N Na O P Pb S Sb Si Sn Sr U W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Alunite Aragonite Arsenopyrite Autunite Baryte Calcite Chalcopyrite Clay Clinozoisite
Copper Corundum Epidote Garnet Ludwigite Malachite Mica Molybdenite None Not in a structural group
Pyrite Quartz Rhodonite Rocksalt Rutile Scheelite Smectite-vermiculite Spinel Stibnite

37 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
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	100	90	2	160373,160420	2353
Arsenopyrite ()*	Arsenopyrite	FeAsS	100	90	3	160377,160378,160425	9052
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	100	90	1	160398	1272
Baryte ()*	Baryte	Ba(SO₄)	100	90	1	160392	11547
Calcite ()*	Calcite	Ca(CO₃)	100	90	2	160368,160378	27770
Cassiterite ()*	Rutile	SnO₂	100	90	6	160361,160375,160377,160378,160379,160380	5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	100	90	2	160361,160378	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	100	90	2	160361,160379	3531
Cinnabar ()*	None	HgS	100	90	3	160431,160432,160434	2600
Copper ()*	Copper	Cu	100	90	2	160361,160378	3846
Cuprite ()*	Not in a structural group	Cu₂O	100	90	1	160378	2970
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	100	90	1	160378	8173
Galena ()*	Rocksalt	PbS	100	90	1	160378	24243
Gibbsite ()*	None	Al(OH)₃	100	90	1	160373	504
Gold ()*	Copper	Au	100	90	2	160407,160427	30554
Halite ()*	Rocksalt	NaCl	100	90	1	160389	1398
Hematite ()*	Corundum	Fe₂O₃	100	90	1	160379	14640
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	100	90	2	160361,160378	2228
Ludwigite ()*	Ludwigite	Mg₂Fe³⁺O₂(BO₃)	100	90	3	160361,160377,160378	134
Maghemite ()*	Spinel	(Fe³⁺_0.67 _0.33)Fe³⁺₂O₄	100	90	3	160375,160377,160380	229
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	100	90	5	160375,160377,160378,160379,160380	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	100	90	2	160361,160379	12537
Molybdenite ()*	Molybdenite	MoS₂	100	90	3	160361,160377,160378	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	100	90	1	160411	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	100	90	1	160378	17380
Niter ()*	None	K(NO₃)	100	90	1	160394	181
Powellite ()*	Scheelite	Ca(MoO₄)	100	90	2	160361,160378	494
Pyrite ()*	Pyrite	FeS₂	100	90	3	160378,160431,160434	39462
Quartz ()*	Quartz	SiO₂	100	90	2	160407,160416	61156
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	100	90	1	160373	969
Scheelite ()*	Scheelite	Ca(WO₄)	100	90	5	160361,160378,160386,160407,160416	4894
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	100	90	1	160425	1153
Smithsonite ()*	Calcite	Zn(CO₃)	100	90	1	160373	2473
Stibnite ()*	Stibnite	Sb₂S₃	100	90	1	160418	3418
Strontianite ()*	Aragonite	Sr(CO₃)	100	90	2	160361,160378	589
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	100	90	1	160378	652
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	100	90	2	160361,160378	1025

7 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	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		Zircon	213077	Tehachapi Mts, Kern Co., California, USA	[Tehachapi Mtns]	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183
USGS-U-Th-Pb-02507_206_238	113	113	113	206_238	age of intrusion	zircon		Zircon	272637	Purdie Ridge, Tehachapi Mts, Kern Co., California, USA		USGS-U-Th-Pb		USGS-U-Th-Pb
USGS-U-Th-Pb-02507_207_206	108	108	108	207_206	age of intrusion	zircon		Zircon	272637	Purdie Ridge, Tehachapi Mts, Kern Co., California, USA		USGS-U-Th-Pb		USGS-U-Th-Pb
USGS-U-Th-Pb-02507_207_235	113.1	113.1	113.1	207_235	age of intrusion	zircon		Zircon	272637	Purdie Ridge, Tehachapi Mts, Kern Co., California, USA		USGS-U-Th-Pb		USGS-U-Th-Pb
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...