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:
Organ Pipe Cactus National Monument, Pima Co., Arizona, USA

Oldest recorded age at locality: 17.9
Youngest recorded age at locality: 14.94

mindat Locality ID: 39725
mindat URL: http://www.mindat.org/loc-39725.html

Tectonic Settings:

Total number of sublocalities beneath "Organ Pipe Cactus National Monument, Pima Co., Arizona, USA": 32
Total number of bottom-level sublocalities: 20

Number of Child Localities: 6
Child Localities:
Ajo Mts
Comobabi Mts
Copper Mountain Prospect (Copper Mountain Cu-Au Occurrence)
Growler Mts
Gunsight Hills
Puerto Blanco & Sonoyta Mts

Latitude: 32°4'42"N
Longitude: 112°46'10"W
Decimal Degree (lat, lon): 32.078333333333,-112.76944444444

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	Baryte	Calcite	Corundum	None	Rocksalt	Wollastonite

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 Ba C Ca Cl Cu Fe O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Baryte Calcite Corundum None Rocksalt Wollastonite

7 IMA Minerals at location:

Acanthite ()*	Baryte ()*	Calcite ()*	Chalcocite ()*	Chlorargyrite ()*
Hematite ()*	Wollastonite ()*

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	17.9	14.94	1	143988	2793
Baryte ()*	Baryte	Ba(SO₄)	17.9	14.94	1	143964	11547
Calcite ()*	Calcite	Ca(CO₃)	17.9	14.94	1	143988	27770
Chalcocite ()*	None	Cu₂S	17.9	14.94	1	143970	5707
Chlorargyrite ()*	Rocksalt	AgCl	17.9	14.94	1	143988	1382
Hematite ()*	Corundum	Fe₂O₃	17.9	14.94	1	143965	14640
Wollastonite ()*	Wollastonite	CaSiO₃	17.9	14.94	1	143974	1247

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
Giersdorf_00000437	17.9	16.9	17.4±0.5	K-Ar	UAKA-72-42	39725	Organ Pipe Cactus National Monument, Pima Co., Arizona, USA	Organ Pipe Cactus National Monument	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000445	16.11	15.31	15.71±0.4	K-Ar	UAKA-72-40	39725	Organ Pipe Cactus National Monument, Pima Co., Arizona, USA	Gu Vo Hills	Shafiqullah et al. (1980)	AGSD12_201
Giersdorf_00000448	15.84	14.94	15.39±0.45	K-Ar	UAKA-72-41	39725	Organ Pipe Cactus National Monument, Pima Co., Arizona, USA	Gu Vo Hills	Shafiqullah et al. (1980)	AGSD12_201

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...