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



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Basalt

K/Ar

gms

10.23

0.34

Moore et al., 1994

























1131

Arandas, Jal.

-102.31

20.70

Basalt

K/Ar

WR

10.20

0.30

Nixon et al. 1987




























La Ordeña, Gto.

-101.05

20.72

Andesite

K/Ar

WR

10.20

0.10

Hasenaka et al., 1994

























1151

Punta Mita, Nay.

-105.50

20.78

Basalt

K/Ar

WR

10.20

0.80

Gastil et al. 1979

























PR 90

A. Mezcala (C. La Col), Jal.







Basalt

K/Ar

WR

6.30

7.50


0.90

0.80


Ferrari et al., in prep.

























IL 89 8

S. Cristobal, Jal.

-103.42

21.03

Ignimbrite (W Pum.)

Ar/Ar

San

10.17

0.04

Moore et al., 1994

























ZHG JRE-7

W Atemajac, Jal.

-103.68

20.24

Basalt

K/Ar

gms

10.10

0.50

Rosas et al., 1997

























1150

S. Vallejo, Nay.

-105.36

20.95

Basalt

K/Ar

WR

10.10

0.30

Gastil et al. 1979

























DCH 9

S Atotonilco el alto, Jal.

-102.38

20.52

Rhyolite

K/Ar

WR

10.10

0.40

Castillo-Hdz. and Romero-Rios, 1991

























Az 20

Los Azufres (-2700), Mich.

-100.68

19.75

Andesite

K/Ar

WR

10.10

0.60

Aumento and Negrin 1980

























M203a

E Sayula Lake, Jal.

-103.45

20.06

Andesite

K/Ar

WR

10.10

0.40

Allan 1986

























CHP 711

North of Atoyac, Jal.

-103.48

20.08

Andesite-bas.

K/Ar




10.08

0.80

Delgado et al., 1995

























Ped Jal 8

S. Cristobal Barranca, Jal.

-103.41

21.01

Andesite-bas.

K/Ar

gms

10.05

0.32

Damon et al., 1979

























GTO 2

Neutla, Gto.







Andesite

Ar/Ar

gms

10.00§

0.20

Cerca-Martínez, 1998

























S 8

NW Arandas, Gua.

-102.43

20.76

Basalt

K/Ar

WR

10.00

2.00

Verma et al. 1985





































Andesite

K/Ar

WR

10.00




IMP, UNPUBLISHED





































Andesite

K/Ar

Pl

10.00

1.00

IMP, UNPUBLISHED

























C3

Mesa Barduces, Jal.

-103.17

21.02

Basalt (ol px)

K/Ar

WR

10.00

1.00

Castillo-Hdz. and Romero-Rios, 1991

























Ped Jal 14

C. La Campana, Ags.

-102.85

20.87

Basalt

K/Ar

WR

9.97




Nieto-Obregón et al. 1981

























193

N Mecatan, Tepic

-105.08

21.68

Basalt

K/Ar

WR

9.90

0.30

Gastil et al. 1979

























*

Sierra Las Cruces, DF

-99.30

19.28

Ignimbrite

K/Ar

WR

9.80

1.00

Mooser et al. 1974

























95-G4a

El Creston

-97.71

19.45

Andesite

K/Ar

WR

9.70

0.50

Carrasco -Nuñez et al., 1998

























A 28

S. Cristobal, Jal.

-103.40

21.03

Basalt

K/Ar

gms

9.61

0.28

Moore et al., 1994





































Andesite

K/Ar

WR

9.60

1.00

IMP, UNPUBLISHED

























Ped Jal 12

Lagunillas, Jal.

-102.90

20.84

Basalt

K/Ar

WR

9.58

0.35

Nieto-Obregón et al. 1981

























1

Rio G. Santiago, Jal.

-103.31

20.85

Basalt

K/Ar

WR

9.50

0.10

Watkins et al. 1971

























Joy 72

Volcán La Joya, Gto.







Andesite

Ar/Ar

gms

10.60§

0.50

Aguirre et al., in prep.




























La Ordeña, Gto.

-101.02

20.68

Andesite

K/Ar

WR

9.44

0.10

Hasenaka et al., 1994

























LIRT 100

Chiconquiaco-Palma Sola, Ver.

-96.74

19.61

Basalt alk.

K/Ar

Pl

9.40

0.90

Lopez-Infanzon, 1990

























EN 33

N Pathè, Hgo.

-99.42

20.68

Basalt

K/Ar

WR

9.38

0.50

Jacobo-Albarrán, 1986

























DCH 5

E Atotonilco, Jal.

-102.34

20.47

Basalt

K/Ar

WR

9.30

0.90

Castillo-Hdz. and Romero-Rios, 1991

























DCH 7

Atotonilco el alto, Jal.

-102.45

20.48

Ignimbrite

K/Ar

San

9.30

0.40

Castillo-Hdz. and Romero-Rios, 1991























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