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:
El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico

Oldest recorded age at locality: 1571
Youngest recorded age at locality: 0

mindat Locality ID: 191823
mindat URL: http://www.mindat.org/loc-191823.html

Tectonic Settings:

Total number of sublocalities beneath "El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico": 0
Total number of bottom-level sublocalities: 0

Latitude: 28°1'59"N
Longitude: 113°33'59"W
Decimal Degree (lat, lon): 28.033055555556,-113.56638888889

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	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Covellite	Diaspore	Digenite	Epidote
Feldspar	Kaolinite	Malachite	Mica	Molybdenite	None	Not in a structural group	Pyrite	Quartz	Rocksalt
Sphalerite	Spinel

Albite ()*	Azurite ()*	Bornite ()*	Calcite ()*	Chalcocite ()*
Chalcopyrite ()*	Chrysocolla ()*	Copper ()*	Covellite ()*	Cuprite ()*
Digenite ()*	Dioptase ()*	Epidote ()*	Galena ()*	Goethite ()*
Gold ()*	Kaolinite ()*	Magnetite ()*	Malachite ()*	Molybdenite ()*
Muscovite ()*	Pyrite ()*	Quartz ()*	Sphalerite ()*

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 C Ca Cu Fe H K Mo Na O Pb S Si Zn

Elements from minerals reported directly at this locality: Al Au C Ca Cu Fe H K Mo Na O Pb S Si Zn

Structural Groups for minerals in this locality:
Allophane Calcite Chalcopyrite Clay Clinozoisite Copper Covellite Diaspore Digenite Epidote
Feldspar Kaolinite Malachite Mica Molybdenite None Not in a structural group Pyrite Quartz Rocksalt
Sphalerite Spinel

24 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1571	0	8803
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	164.5	163.7	5509
Bornite ()*	None	Cu₅FeS₄	164.5	163.7	5516
Calcite ()*	Calcite	Ca(CO₃)	1571	0	27770
Chalcocite ()*	None	Cu₂S	164.5	163.7	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	164.5	163.7	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	164.5	163.7	3531
Copper ()*	Copper	Cu	164.5	163.7	3846
Covellite ()*	Covellite	CuS	164.5	163.7	4165
Cuprite ()*	Not in a structural group	Cu₂O	164.5	163.7	2970
Digenite ()*	Digenite	Cu_1.8S	164.5	163.7	1027
Dioptase ()*	None	CuSiO₃·H₂O	164.5	163.7	164
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	164.5	163.7	8173
Galena ()*	Rocksalt	PbS	164.5	163.7	24243
Goethite ()*	Diaspore	FeO(OH)	1571	0	7437
Gold ()*	Copper	Au	164.5	163.7	30554
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	164.5	163.7	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1571	0	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	164.5	163.7	12537
Molybdenite ()*	Molybdenite	MoS₂	164.5	163.7	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1571	0	17380
Pyrite ()*	Pyrite	FeS₂	164.5	163.7	39462
Quartz ()*	Quartz	SiO₂	1571	0	61156
Sphalerite ()*	Sphalerite	ZnS	164.5	163.7	21482

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000172	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000173	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000174	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000175	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000176	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000177	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000178	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000179	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000180	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000181	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000182	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000183	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000184	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000185	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000186	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000187	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000188	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000189	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000190	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000191	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000192	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000193	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000194	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000195	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000196	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000197	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000198	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000199	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000200	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000201	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000202	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000203	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000204	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000205	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000206	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000207	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000208	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000209	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000210	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000211	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000212	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000213	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000214	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000215	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000216	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000217	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000218	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000219	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000220	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000221	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000222	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000223	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000224	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro
Jen_0000225	El Arco-Calmalli Region, central Baja California, approximately 40 km east of the city of Guerrero Negro

55 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	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
Jen_0000213	181	85.2	133.1±47.9	U-Pb	age of crystallization of El Arco Stock	zircon	16	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000200	174.5	162.1	168.3±6.2	U-Pb	age of crystallization of El Arco Stock	zircon	11	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000201	230	147	188.5±41.5	U-Pb	age of crystallization of El Arco Stock	zircon	11	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000202	673	225	449±224	U-Pb	age of crystallization of El Arco Stock	zircon	11	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000203	202.2	176.2	189.2±13	U-Pb	age of crystallization of El Arco Stock	zircon	12	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000204	288.7	128.1	208.4±80.3	U-Pb	age of crystallization of El Arco Stock	zircon	12	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000205	826	36	431±395	U-Pb	age of crystallization of El Arco Stock	zircon	12	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000206	179.7	151.1	165.4±14.3	U-Pb	age of crystallization of El Arco Stock	zircon	13	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000207	246.6	64.2	155.4±91.2	U-Pb	age of crystallization of El Arco Stock	zircon	13	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000208	179.2	155.4	167.3±11.9	U-Pb	age of crystallization of El Arco Stock	zircon	14	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000209	198.3	65.5	131.9±66.4	U-Pb	age of crystallization of El Arco Stock	zircon	14	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000210	172.1	146.1	159.1±13	U-Pb	age of crystallization of El Arco Stock	zircon	15	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000211	165.5	58.5	112±53.5	U-Pb	age of crystallization of El Arco Stock	zircon	15	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000212	174.6	151.2	162.9±11.7	U-Pb	age of crystallization of El Arco Stock	zircon	16	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000199	703	0	267±436	U-Pb	age of crystallization of El Arco Stock	zircon	10	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000214	181.9	147.1	164.5±17.4	U-Pb	age of crystallization of El Arco Stock	zircon	17	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000215	229.4	103.6	166.5±62.9	U-Pb	age of crystallization of El Arco Stock	zircon	17	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000216	593	0	194±399	U-Pb	age of crystallization of El Arco Stock	zircon	17	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000217	181.6	146.8	164.2±17.4	U-Pb	age of crystallization of El Arco Stock	zircon	18	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000218	218.8	67.8	143.3±75.5	U-Pb	age of crystallization of El Arco Stock	zircon	18	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000219	182.4	146.2	164.3±18.1	U-Pb	age of crystallization of El Arco Stock	zircon	19	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000220	229.5	110.5	170±59.5	U-Pb	age of crystallization of El Arco Stock	zircon	19	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000221	610	0	250±360	U-Pb	age of crystallization of El Arco Stock	zircon	19	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000222	181.2	149.6	165.4±15.8	U-Pb	age of crystallization of El Arco Stock	zircon	20	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000223	200	98	149±51	U-Pb	age of crystallization of El Arco Stock	zircon	20	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000224	181.7	149.7	165.7±16	U-Pb	age of crystallization of El Arco Stock	zircon	21	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000225	186.8	109.8	148.3±38.5	U-Pb	age of crystallization of El Arco Stock	zircon	21	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
PorphCu-00216	164.5	163.7	164.1±0.4	Re-Os					Chalcopyrite, Chrysocolla, Copper, Covellite, Cuprite, Dioptase, Epidote, Galena, Gold, Kaolinite, Molybdenite, Pyrite, Sphalerite	Cu	191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco	Singer et al. (2008)		USGSOFR2008_1155
Jen_0000186	170.7	153.5	162.1±8.6	U-Pb	age of crystallization of El Arco Stock	zircon	6	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000173	237.6	55.4	146.5±91.1	U-Pb	age of crystallization of El Arco Stock	zircon	1	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000174	164.6	150.4	157.5±7.1	U-Pb	age of crystallization of El Arco Stock	zircon	2	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000175	211.9	126.9	169.4±42.5	U-Pb	age of crystallization of El Arco Stock	zircon	2	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000176	601	79	340±261	U-Pb	age of crystallization of El Arco Stock	zircon	2	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000177	177.1	165.7	171.4±5.7	U-Pb	age of crystallization of El Arco Stock	zircon	3	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000178	269.6	145.2	207.4±62.2	U-Pb	age of crystallization of El Arco Stock	zircon	3	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000179	937	341	639±298	U-Pb	age of crystallization of El Arco Stock	zircon	3	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000180	171.3	152.1	161.7±9.6	U-Pb	age of crystallization of El Arco Stock	zircon	4	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000181	356.9	138.1	247.5±109.4	U-Pb	age of crystallization of El Arco Stock	zircon	4	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000182	1571	763	1167±404	U-Pb	age of crystallization of El Arco Stock	zircon	4	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000183	188.3	156.9	172.6±15.7	U-Pb	age of crystallization of El Arco Stock	zircon	5	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000184	331	93	212±119	U-Pb	age of crystallization of El Arco Stock	zircon	5	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000185	1241	111	676±565	U-Pb	age of crystallization of El Arco Stock	zircon	5	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000172	182.4	154.2	168.3±14.1	U-Pb	age of crystallization of El Arco Stock	zircon	1	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000187	226.5	80.9	153.7±72.8	U-Pb	age of crystallization of El Arco Stock	zircon	6	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000188	568	0	26±542	U-Pb	age of crystallization of El Arco Stock	zircon	6	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000189	169.8	146.8	158.3±11.5	U-Pb	age of crystallization of El Arco Stock	zircon	7	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000190	201.8	60.4	131.1±70.7	U-Pb	age of crystallization of El Arco Stock	zircon	7	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000191	173.2	151.2	162.2±11	U-Pb	age of crystallization of El Arco Stock	zircon	8	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000192	235.8	79.8	157.8±78	U-Pb	age of crystallization of El Arco Stock	zircon	8	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000193	649	0	92±557	U-Pb	age of crystallization of El Arco Stock	zircon	8	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000194	163.8	147.4	155.6±8.2	U-Pb	age of crystallization of El Arco Stock	zircon	9	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000195	260.2	117.4	188.8±71.4	U-Pb	age of crystallization of El Arco Stock	zircon	9	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000196	1007	247	627±380	U-Pb	age of crystallization of El Arco Stock	zircon	9	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000197	168.6	146.4	157.5±11.1	U-Pb	age of crystallization of El Arco Stock	zircon	10	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event
Jen_0000198	231.5	97.7	164.6±66.9	U-Pb	age of crystallization of El Arco Stock	zircon	10	Zircon			191823	El Arco Mine, El Arco, Ensenada Municipality, Baja California, Mexico	El Arco Mine	Valencia et al. (2006)	10.1016/j.jsames.2006.08.005	JSEAS22_39	consequence of the Laramide orogeny, island-arc volcanism of the oceanic Cedros–El Arco Callovian magmatic event

All locality data graciously provided by mindat.org

All age data...