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



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2

Rio G. Santiago, Jal.

-103.33

20.85

Basalt

K/Ar

WR

9.20

0.10

Watkins et al. 1971

























LI 203

Chiconquiaco-Palma Sola, Ver.

-96.87

19.76

Trachy-dacite

K/Ar

WR

9.20

0.50

Lopez-Infanzon, 1990

























3

Rio G. Santiago, Jal.

-103.31

20.83

Ignimbrite

K/Ar

WR

9.10

0.10

Watkins et al. 1971

























DCH 6

Ayotlàn, Jal.

-102.27

20.48

Ignimbrite

K/Ar

WR

9.10

0.40

Castillo-Hdz. and Romero-Rios, 1991

























LIRT 35

Tenochitlan, Ver.

-96.91

19.82

Dacitic ignimbrite

K/Ar

Bio

9.08

0.70

Lopez-Infanzon, 1990

























4

Rio G. Santiago, Jal.

-103.33

20.81

Basalt

K/Ar

WR

9.00

0.20

Watkins et al. 1971

























HF 7

Taxbatha, Hgo.

-99.60

20.50

Andesite

K/Ar




9.00

0.80

Venegas et al. 1985





































Trachyte

K/Ar

WR

9.00




IMP, UNPUBLISHED

























*

S Atemajac, Jal.

-103.70

20.10

Bas.-Andesite

K/Ar

WR

9.00

0.00

CFE 1980

























MS 102

Atotonilco, Jal.

-103.75

20.33

Basalt

K/Ar

WR

9.00

1.00

CFE 1980

























95-R1

Cruz de Leon, Pue.

-97.85

19.61

Andesite

K/Ar

WR

9.00

0.40

Carrasco-Nuñez et al., 1998

























ZI 43

N Zimampan, Hgo.

-99.40

20.78

Andesite

K/Ar

WR

9.00

0.30

Cantagrel et al. 1979

























KR 381

Cinco de Mayo, Nay.

-105.09

21.69

Alk.-Basalt

Ar/Ar

gms

8.93

0.11

Righter et al., 1995

























KR 452

Jumantan, Nay.

-105.03

21.67

Alk.-Basalt

Ar/Ar

gsm

8.91

0.06

Righter et al., 1995

























95-X4d

Cuyoaco, Pue.

-97.70

19.60

Andesite

K/Ar

WR

8.90

0.40

Carrasco-Nuñez et al., 1998

























ROE 142

Villa Chavinda, Mich.

-102.39

20.03

Basalt

K/Ar

WR

8.80

0.80

Rosas et al., 1989

























*K

C. S. Isidro, Nay.

-104.79

21.59

Basalt

K/Ar

WR

8.70

0.70

Soto and Ortega, 1982




























Ocotlán toll house, Jal.

-103.75

20.42

Basalt

Ar/Ar

gms

8.70

1.00

Rosas & Urrutia-Fucugauchi

























CB1 N7

Ceboruco Well, Nay.







Basaltic-and.

Ar/Ar

Pl

8.60

0.20

Ferrari et al., in prep.

























DCH 10

Huascato, Jal.

-102.24

20.49

Rhyolite

K/Ar

San

8.60

0.30

Castillo-Hdz. and Romero-Rios, 1991

























Ped Jal 17

Mistemeque, Jal.

-103.79

20.99

Basalt

K/Ar

WR

8.52

0.10

Nieto-Obregón et al. 1985





































Basalt

K/Ar

WR

8.30

1.00

IMP, UNPUBLISHED

























1152

Punta Raza, Nay.

-105.26

21.01

Basalt

K/Ar

Pl

8.30

0.60

Gastil et al. 1979

























PR 67

Mesa Chinacatiahua, Zac.







Basalt

K/Ar

WR

10.20

0.40

Ferrari et al., in prep.

























Mx 88-20

Queretaro airport, Qro.

-100.37

20.62

Basalt

K/Ar

WR

8.10

0.80

Pasquarè et al., 1991

























*NT-29

Mexquital valley, Hgo.







Basalt

K/Ar

gms

8.00

0.50

Suter, Lopez, unpublished

























Ped Jal 11

C. Las Higueras, Jal.

-103.23

20.75

Basalt

K/Ar

WR

8.02

0.10

Nieto-Obregón et al. 1981








































K/Ar

WR

8.00




IMP, UNPUBLISHED

























Cu 8

Peña el Panal, Mich.

-101.16

19.75

Andesite

K/Ar

WR

7.81

0.60

Pasquarè et al., 1991

























HF 24

Pathè, Hgo.

-99.72

20.64

Rhyolite

K/Ar




7.80

0.40

Venegas et al. 1985

























421

El Jicote, N Mecatan, Nay.

-105.03

21.71

Rhyolite

K/Ar

Feld

7.80

0.60

Gastil et al. 1979

























KA 4289

Zapotlanejo, Jal.

-103.03

20.71

Ignimbrite

K/Ar




7.73

0.20

Gilbert et al. 1985














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