Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Kaolinite at Sierrita Mts, Pima Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 67Ma - 53Ma at this locality

Age range from children

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
EG94_211-00050	67	67				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
PorphCu-00037	57	53		Bornite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Enargite, Epidote, Ferrimolybdite, Fluorite, Galena, Jarosite, Kaolinite, Magnetite, Marcasite, Molybdenite, Montmorillonite, Pyrite, Pyrrhotite, Rutile, Sphalerite	Cu	11013	Esperanza Mine [new] (Esperanza Pit; Esperanza Open Pit Mines; West Esperanza Mine), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155

Specified age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
PorphCu-00037	57	53		Bornite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Enargite, Epidote, Ferrimolybdite, Fluorite, Galena, Jarosite, Kaolinite, Magnetite, Marcasite, Molybdenite, Montmorillonite, Pyrite, Pyrrhotite, Rutile, Sphalerite	Cu	11013	Esperanza Mine [new] (Esperanza Pit; Esperanza Open Pit Mines; West Esperanza Mine), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
EG94_211-00050	67	67				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00051	67	67				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00052	63	63				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00053	58	58				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
EG94_211-00054	58	58				22945	Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Bouse et al. (1999)	EG94_211
Mo-00122	63.1	56.9		Ferrimolybdite, Lindgrenite, Molybdenite	Mo	11013	Esperanza Mine [new] (Esperanza Pit; Esperanza Open Pit Mines; West Esperanza Mine), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Titley et al. (1986); Livingston et al. (1968); Barra et al. (2005)
NAVDAT-51644	2000	0				31830	Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51646	2000	0				190326	Unnamed Cu Prospect (5), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
NAVDAT-51659	2000	0				190326	Unnamed Cu Prospect (5), Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	NAVDAT	NAVDAT
PorphCu-00012	58	58		Actinolite, Bornite, Brochantite, Chalcopyrite, Chrysocolla, Copper, Diopside, Epidote, Ferrimolybdite, Fluorite, Galena, Magnetite, Molybdenite, Montmorillonite, Powellite, Pyrite, Pyrolusite, Pyrrhotite, Scheelite, Siderite, Sphalerite, Wollastonite	Cu	3376	Twin Buttes Mine (Twin Buttes Open Pit Mine), Twin Buttes, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00089	58	58		Actinolite, Chalcopyrite, Chrysocolla, Jarosite, Pyrite	Cu	32002	Mission Pit (Mission Mine [old]; East Pima Mine; Mission Porphyry Copper Deposit), Mission Complex, San Xavier, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA	Singer et al. (2008)	USGSOFR2008_1155