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



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LTX-78

C. San Martin, Tuxtlas

-94.79

18.27

Alk.-Basalt

K/Ar

WR

5.90

2.90

Jacobo-Albarrán et al., 1992

























Az 7

Los Azufres (Mix), Mich.

-100.68

19.75

Andesite

K/Ar

WR

5.90

0.40

Aumento and Negrin 1980

























AG 69

Apaseo el Alto, Gto.







Rhyolite (obs.)

K/Ar

gms

6.70

0.20

Aguirre and Lopez, unpublished

























Am 67

N Amealco caldera, Qro.

-100.10

20.35

Basaltic Andes.

K/Ar

WR

5.69

0.35

Aguirre, 1997

























LIRT 200

Chiconquiaco-Palma Sola, Ver.

-96.86

19.79

Basaltic-andesite

K/Ar

WR

5.60

0.90

Lopez-Infanzon, 1990

























Jal 7

N Presa S. Rosa, Jal.

-103.67

20.93

Ignimbrite

K/Ar




5.53

0.10

Nieto-Obregón et al. 1985

























5

Rio G. Santiago, Jal.

-103.50

20.80

Andesite

K/Ar

WR

5.50

0.10

Watkins et al. 1971

























AG 56

La Joya, S. Los Agustinos, Gto.







Andesite

K/Ar

WR

5.50

0.40

Aguirre and Lopez, unpublished

























KA 4290

La Soledad, Jal.

-103.30

20.82

Rhyolite

K/Ar




5.47

0.17

Gilbert et al. 1985

























CHP 552

Teocuitatlan, Jal.

-103.37

20.11

Andesite

K/Ar




5.45

0.85

Delgado et al., 1995

























Mx 88-43

Puroagua, Siete Cruces, Mich.

-100.44

20.09

Rhyolite

K/Ar

San

5.40

0.50

Ferrari et al. 1991

























C 85

E Sayula L., Jal.

-103.58

20.08

Andesite

K/Ar

Hb

5.40

0.20

Allan 1986

























OB 3

Espinazo del Diablo, Jal.







Rhyolite

FT

Obs

5.36

0.21

Ferrari et al., in prep.

























Aca 2

El Zapote, Mich.

-100.93

19.98

Andesite

K/Ar

WR

5.32

0.50

Pasquarè et al., 1991

























ZHG JRE-5

Sierra de Tapalpa, Jal.

-103.67

20.25

Andesite

K/Ar

WR

5.30

0.30

Rosas et al., 1997

























CHP 726b

Cerro La Caja, Jal.

-102.86

20.06

Andesite

K/Ar




5.23

0.63

Delgado et al., 1995

























C 78

Zacoalco, Guad.

-103.55

20.20

Andesite

K/Ar

Hb

5.20

0.40

Allan 1986

























KA 3252

N S. Francisco Tesitan, Gua.

-103.38

20.78

Rhyolite

K/Ar




5.19

0.06

Gilbert et al. 1985

























CHP 113

Las Presitas, Jal.

-103.56

20.20

Andesite

K/Ar

WR

5.17

0.82

Delgado et al., 1995

























EN 55

SE Apaseo, Gto.

-100.63

20.40

Basalt

K/Ar

WR

5.15

1.00

Jacobo-Albarrán, 1986

























CHP 533

W Cajititlan lake, Jal.

-103.43

20.42

Andesite

K/Ar




5.15

0.61

Delgado G. H., 1992

























AG 82

Sierra Los Agostinos, Gto.







Basalt

K/Ar

WR

5.10

0.30

Aguirre and Lopez, unpublished





































Andesite

K/Ar

WR

5.00

0.40

IMP, UNPUBLISHED





































Andesite

K/Ar

WR

5.00




IMP, UNPUBLISHED





































Basalt

K/Ar

WR

5.00




IMP, UNPUBLISHED

























*

Teziutlan, Pue.

-97.20

19.73

Andesite

K/Ar




5.00

0.00

Yanez-G. and Garcia-D. 1980





































Andesite

K/Ar

WR

5.00




IMP, UNPUBLISHED

























Az 6

Los Azufres (-700), Mich.

-100.66

19.76

Andesite

K/Ar

WR

5.00

0.40

Aumento and Negrin 1980

























Joy 78

Volcán La Joya, Gto.







Basalt

Ar/Ar

WR

6.20§

0.60

Aguirre et al., in prep.

























EN 69

Sierra Los Agostinos, Gto.

-100.76

20.25

Basalt

K/Ar

WR

4.99

1.50

Jacobo-Albarrán, 1986

























Al 20

Atoyac, Jal.

-103.53

20.00

Andesite

K/Ar

WR

4.96

0.03

Allan 1986

























Mas-512

La Coronilla, Jal.

-103.22

20.67

Bas.-Andesite

K/Ar

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