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



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3-71-9 P

W of El Palmito, Dgo.

-105.85

23.55

Ignimbrite

K/Ar

Pl

23.30

0.40

McDowell & Keitzer, 1977





































Basalt

K/Ar

WR

23.30

1.50

IMP, UNPUBLISHED

























Ped Jal 1

La Carbonera, Bolaños, Jal.

-103.70

21.86

Ignimbrite

K/Ar

Pl

23.23

0.52

Nieto-Obregón et al. 1981

























3-71-2 F

SE of El Salto, Dgo.

-105.32

23.75

Ignimbrite

K/Ar

Feld

23.20

0.50

McDowell & Keitzer, 1977

























3-71-8 F

Espinazo del Diablo, Dgo.

-105.77

23.64

Ignimbrite

K/Ar

Feld

23.10

0.50

McDowell & Keitzer, 1977

























3-71-7 P

SW of Espinazo del Diablo, Dgo.

-105.80

23.63

Ignimbrite

K/Ar

Pl

23.00

0.50

McDowell & Keitzer, 1977































-101.68

22.45

Rhyolite

K/Ar

San

23.00

2.00

IMP, UNPUBLISHED

























Mx 88-38

Misterio del Chorro, Gto.

-101.22

20.93

Rhyolite

K/Ar

San

23.00

1.00

Pasquarè et al., 1991































-102.46

20.70

Rhyolite

K/Ar

Pl

23.00

2.00

IMP, UNPUBLISHED

























IL 89 1

N of El Tambor, Zac.

-103.47

21.28

Ignimbrite

Ar/Ar

San

22.99

0.05

Moore et al., 1994

























IL 89 10

El Tambor, Zac.

-103.47

21.27

Ignimbrite

Ar/Ar

San

22.92

0.05

Moore et al., 1994

























IL 89 12

El Tambor, Zac.

-103.47

21.27

Ignimbrite

Ar/Ar

San

22.92

0.05

Moore et al., 1994

























1-70-2 P

E of Espinazo del Diablo, Dgo.

-105.75

23.66

Ignimbrite

K/Ar

Pl

22.90

0.50

McDowell & Keitzer, 1977

























TS 21

Jesus Maria, Nay.







Andesite

Ar/Ar

Pl

22.60

0.30

Ferrari et al., in prep.

























Ped Jal 19

S. Pedro Analco, Jal.

-103.95

21.13

Latite

K/Ar

Pl

22.54

0.47

Nieto-Obregón et al. 1985

























*A

El Casco, Nay.

-104.80

21.78

Andesitic tuff

K/Ar




22.40

4.00

Soto and Ortega, 1982

























TS 26

W of Mesa del Nayar, Nay.







Ignimbrite

Ar/Ar

San

22.40

0.50

Ferrari et al., in prep.

























R 14

Nazas, Dur.

-104.49

25.12

Alk. Basalt

K/Ar

WR

22.40

0.4

Aguirre & McDoweell, 1993

























HM 1

El Roble, Sin.

-106.38

23.22

Dacite

K/Ar

Bio

22.30

0.30

Henry & Fredrikson, 1987

























Ped Jal 4

W Bolanos, Jal.

-103.70

21.86

Ignimbrite

K/Ar

San

22.23

0.46

Nieto-Obregón et al. 1981

























Na 55 a

Nazas, Dur.

-104.20

25.19

Alk. Basalt

K/Ar

WR

22.10

0.4

Aguirre & McDoweell, 1993





































Rhyolite

K/Ar

San

22.00

4.00

IMP, UNPUBLISHED

























Mx 88-41

S. Jose Los Allende, Gto.

-101.02

20.87

Ignimbrite

K/Ar

San

22.00

1.00

Pasquarè et al., 1991





































Porfido dacitico

K/Ar

WR

22.00

1.00

IMP, UNPUBLISHED

























A 60

C. San Vicente, Teul, Zac.

-103.38

21.55

Bas.-Andesite

K/Ar

gms

21.81

1.04

Moore et al., 1994





































Basalt

K/Ar

WR

21.70

1.30

IMP, UNPUBLISHED

























UAKA 82-02

Corral Blanco, Bolanos, Zac.

-103.87

21.62

Ignimbrite

K/Ar

Bio

21.30

0.50

Scheubel et al., 1988

























246

S S. Maria Oro, Nay.

-104.53

21.29

Rhyolite

K/Ar

Pl

21.30

0.90

Gastil et al. 1979

























Ped Jal 6

San Martin Bolanos, Jal.

-103.70

21.86

Basaltic dike

K/Ar

WR

21.03

0.44

Nieto-Obregón et al. 1981

























Mx 88-2

P.to La Sosa, Mich.

-101.13

19.51

Ignimbrite

K/Ar

San

21.00

1.00

Pasquarè et al., 1991

























W4

C. las Tetillas, Jal.

-103.47

21.32

Andesite

K/Ar

WR

21.00

1.00

Castillo-Hdz. and Romero-Rios, 1991

























Ped Jal 10

C. El Mexicano, Jal.

-103.23

21.12

Basalt

K/Ar

WR

20.89


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