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:
Owl Head District, Tortolita Mts, Pinal Co., Arizona, USA

Oldest recorded age at locality: 28.4
Youngest recorded age at locality: 27

mindat Locality ID: 194354
mindat URL: http://www.mindat.org/loc-194354.html

Tectonic Settings:

Total number of sublocalities beneath "Owl Head District, Tortolita Mts, Pinal Co., Arizona, USA": 42
Total number of bottom-level sublocalities: 38

Number of Child Localities: 2
Child Localities:
Oracle Junction Area
Owl Head Buttes Area

Latitude: 32°34'7"N
Longitude: 111°3'13"W
Decimal Degree (lat, lon): 32.568611111111,-111.05361111111

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.

Acanthite	Allophane	Aragonite	Baryte	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum
Epidote	Feldspar	Linarite	Malachite	Mica	None	Not in a structural group	Pyrite	Rocksalt	Sphalerite
Spinel

Acanthite ()*	Baryte ()*	Calcite ()*	Cerussite ()*	Chalcocite ()*
Chalcopyrite ()*	Chrysocolla ()*	Cuprite ()*	Dolomite ()*	Epidote ()*
Galena ()*	Gold ()*	Hematite ()*	Linarite ()*	Magnetite ()*
Malachite ()*	Muscovite ()*	Orthoclase ()*	Pyrite ()*	Sphalerite ()*
Tenorite ()*

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: Ag Al Au Ba C Ca Cu Fe H K Mg O Pb S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Allophane Aragonite Baryte Calcite Chalcopyrite Clay Clinozoisite Copper Corundum
Epidote Feldspar Linarite Malachite Mica None Not in a structural group Pyrite Rocksalt Sphalerite
Spinel

21 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
Acanthite ()*	Acanthite	Ag₂S	28.4	27	3	146383,146388,146391	2793
Baryte ()*	Baryte	Ba(SO₄)	28.4	27	2	146380,146392	11547
Calcite ()*	Calcite	Ca(CO₃)	28.4	27	1	146374	27770
Cerussite ()*	Aragonite	Pb(CO₃)	28.4	27	2	146383,146391	4979
Chalcocite ()*	None	Cu₂S	28.4	27	6	146372,146374,146376,146377,146379,146383	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	28.4	27	19	146367,146368,146372,146373,146374,146375,146378,146383,146384,146387,146388,146389,146392,146393,146394,146399,146400,146401,146406	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	28.4	27	19	146366,146368,146372,146375,146376,146377,146380,146382,146389,146390,146393,146395,146397,146398,146399,146400,146402,146403,146404	3531
Cuprite ()*	Not in a structural group	Cu₂O	28.4	27	1	146397	2970
Dolomite ()*	None	CaMg(CO₃)₂	28.4	27	1	146388	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	28.4	27	5	146368,146379,146399,146400,146405	8173
Galena ()*	Rocksalt	PbS	28.4	27	8	146378,146380,146382,146383,146387,146388,146391,146392	24243
Gold ()*	Copper	Au	28.4	27	1	146374	30554
Hematite ()*	Corundum	Fe₂O₃	28.4	27	4	146366,146391,146397,146404	14640
Linarite ()*	Linarite	CuPb(SO₄)(OH)₂	28.4	27	2	146383,146392	987
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	28.4	27	2	146391,146395	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	28.4	27	15	146373,146374,146375,146380,146382,146383,146384,146387,146388,146390,146393,146394,146401,146405,146406	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	28.4	27	15	146366,146367,146374,146376,146379,146380,146382,146383,146391,146392,146397,146398,146399,146400,146404	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	28.4	27	1	146406	2349
Pyrite ()*	Pyrite	FeS₂	28.4	27	6	146367,146368,146378,146382,146398,146400	39462
Sphalerite ()*	Sphalerite	ZnS	28.4	27	1	146388	21482
Tenorite ()*	None	CuO	28.4	27	1	146383	1101

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Giersdorf_00000388	28.4	27	27.7±0.7	K-Ar				UAKA-63-36		Yes				68675	Owl Head Mine (Owl Head Claims), Brady Wash Area, Durham Hills, Durham-Suizo District, Pinal Co., Arizona, USA	Brady Wash	Shafiqullah et al. (1980)		AGSD12_201

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...