Gsa data Repository Compilation of ages of magmatic rocks in central Mexico



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1156

S. Vallejo, Nay.

-105.20

20.95

Gabbro

K/Ar

Pl

13.30

2.00

Gastil et al. 1979

























79-20

El Zopilote, Nay.

-104.93

21.96

Ignimbrite dac.

K/Ar

Pl

13.21

0.35

Clark et al., 1981




























La Ordeña, Gto.

-101.80

20.68

Andesite

K/Ar

WR

13.20

0.20

Hasenaka et al., 1994

























AG 47

El Sauz, Gto.







Andesite

K/Ar

gms

13.20

0.20

Aguirre and Lopez, unpublished

























GTO 6

San José de los Allende, Gto.







Basalto

Ar/Ar

gms

12.70§

12.50§



0.30

0.30


Cerca-Martínez, 1998

























Hz 22

Zitacuaro area, Mich.

-100.27

19.57

Andesite

K/Ar

gms

13.10

1.00

CFE, 1992b





































Rhyolite

K/Ar

Feld

13.00

1.00

IMP, UNPUBLISHED





































Andesite

K/Ar

WR

13.00

0.80

IMP, UNPUBLISHED





































Andesite

K/Ar

WR

13.00

1.00

IMP, UNPUBLISHED

























GTO 14

Mesa el Gato, Gto.







Basalto

Ar/Ar

WR

12.50

0.20

Cerca-Martínez, 1998





































Basalt

K/Ar

WR

13.00

1.00

IMP, UNPUBLISHED

























*G

Calera de Cofrados, Nay.

-104.73

21.61

Trachyte

K/Ar




12.90

0.50

Soto and Ortega, 1982

























RK 13

Metates, Dur.

-105.07

23.87

Alk. Basalt

K/Ar

Pl

12.60

1.3

McDowell & Keitzer, 1977

























*

Candelaria, Ver.

-96.49

19.74

Microdiorite

K/Ar




12.60

0.00

Negendank et al. 1985

























1153

S. Vallejo, Nay.

-105.40

20.91

Basaltic dike

K/Ar

WR

12.60

0.40

Gastil et al. 1979

























-

N of S. M. de Allende, Gto.

-100.76

21.00

Basalt

K/Ar

WR

12.50

0.90

Carranza-Castaneda et al., 1994

























RK 24

Metates, Dur.

-104.86

23.93

Alk. Basalt




Amph

12.40

0.4

McDowell & Keitzer, 1977

























EN 11

N Zimampan, Pach.

-99.20

20.86

Andesite

K/Ar

WR

12.40

0.60

Jacobo-Albarrán, 1986

























*

Candelaria, Ver.

-96.49

19.74

Microdiorite

K/Ar




12.30

0.00

Negendank et al. 1985

























Nucleo 5

Copilco 1 well, DF -1700

-99.08

19.40

Basalt

K/Ar

WR

12.30

1.00

Jacobo-Albarrán, 1986

























Nucleo 7

Tulyehualco 1 well, D.F. -1330

-99.08

19.40

Basalt

K/Ar

WR

12.20

0.60

Jacobo-Albarrán, 1986

























EN 114

Sierra Gavilan, Pur.

-101.49

20.03

Andesite

K/Ar

WR

12.12

0.20

Jacobo-Albarrán, 1986

























Jag 3

Palo Huerfano volcano., Gto.

-101.71

20.83

Andesite

K/Ar

Pl

12.10

0.60

Perez-Venzor et al., 1997

























-

Cerro Cubilete, Gto.

-101.37

21.02

Basalt

K/Ar

WR

12.10

0.20

Aguirre-Diaz et al., 1997

























S 1

E Arandas, Jal.

-102.20

20.67

Basalt

K/Ar

WR

12.00

2.00

Verma et al. 1985





































Porfido

K/Ar

Pl

12.00

1.00

IMP, UNPUBLISHED

























79-19

El Zopilote, Nay.

-104.96

21.96

Bas.-And. dike

K/Ar

WR

11.92

0.26

Clark, 1981

























EN 38

E S.Juan del Rio, Pach.

-99.84

20.36

Andesite

K/Ar

WR

11.88

0.60

Jacobo-Albarrán, 1986

























Nucleo 10

Tulyehualco 1 well, DF -1898

-99.10

19.40

Andesite

K/Ar

WR

11.80

1.90

Jacobo-Albarrán, 1986

























RK 12

Metates, Dgo.

-104.87

23.92

Alk. Basalt

K/Ar

Amph

11.70

0.3

McDowell & Keitzer, 1977

























*H

Presa el Bañadero, Nay.

-104.72

21.59

Rhyolite

K/Ar

WR

11.60

0.70

Soto and Ortega, 1982




























Metates, Dgo.

-104.87

23.92

Alk. Basalt

Ar/Ar

WR

11.59

0.05

Henry & Aranda-Gomez, 1997

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