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



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Andesite

K/Ar

WR

27.00

2.00

IMP, UNPUBLISHED





































Granodiorite

K/Ar

Bio

27.00

2.00

IMP, UNPUBLISHED




























Sta. Maria Tlaxiaco, Oax.







Ignimbrite

K/Ar




27.00




Moran-Zenteno et al. unpub.

























*

Panalillo, SLP

-101.16

21.82

Ignimbrite

K/Ar

WR

26.80

1.30

Labarthe-Hernandez et al., 1982

























CM 2

Cinco Minas, Ags.

-103.91

21.03

Microdiorite Dike

K/Ar

gms

26.70

0.60

Nieto-Obregón et al. 1985

























RGS 11

S. Pedro Analco, Ags.

-103.95

21.08

Granodiorite

K/Ar

Hb

26.60

0.60

Nieto-Obregón et al. 1985

























*3

Mojarras, Nay.

-104.44

21.37

Diorite

K/Ar

WR

26.20

3.10

Gastil, 1975





































Rhyolite

K/Ar

San

26.00

2.00

IMP, UNPUBLISHED




























Magdalena Zahuatlan, Oax.







Ignimbrite

K/Ar

San

26.00




Moran-Zenteno et al. unpub.

























LP476

Juchipila, Zac.

-103.00

21.51

Ignimbrite

FT

Zr

25.90

2.50

Webber et al., 1994




























La Ordeña, Gto.

-101.01

20.68

Rhyolite

K/Ar

WR

25.90

0.20

Hasenaka et al., 1994

























HR467

Juchipila, Zac.

-103.18

21.50

Ignimbrite

FT

Zr

25.30

2.40

Webber et al., 1994

























BQ483

Juchipila, Zac.

-103.30

21.45

Ignimbrite

FT

Zr

25.20

2.20

Webber et al., 1994





































Andesite

K/Ar

WR

25.00

2.00

IMP, UNPUBLISHED

























HR460

Juchipila, Zac.

-103.17

21.50

Ignimbrite

FT

Zr

24.90

2.70

Webber et al., 1994

























AMC-03

La Sauceda, Gto.

-101.17

20.89

Ignimbrite

K/Ar

San

24.80

0.60

Nieto-Samaniego et al., 1996

























BV 12

Buenavista, Gro.

-99.37

18.48

Ignimbrite

K/Ar

Hb

24.80

1.30

Alba-Aldarve et al., 1996

























CM 3

Cinco Minas, Ags.

-103.90

21.03

Andesite

K/Ar

gms

24.70

0.60

Nieto-Obregón et al. 1985

























DCH 1

Cueramaro, Gto.

-101.67

20.22

Rhyolite

K/Ar

San

24.70

1.00

Castillo-Hdz. and Romero-Rios, 1991

























SLP 9

Matehuala







Rhyolite

K/Ar

San

24.38

1.20

Ferrari unpublished

























SL29

Nazas, Dur.

-104.20

25.26

Alk. Basalt

K/Ar

WR

24.30

0.5

Aguirre & McDoweell, 1993

























DCH 3

Cerro Grande, Jal.

-102.02

20.67

Ignimbrite

K/Ar

San

24.10

0.80

Castillo-Hdz. and Romero-Rios, 1991





































Rhyolite

K/Ar

San

24.00

3.00

IMP, UNPUBLISHED





































Ignimbrite

K/Ar

San

24.00

2.00

IMP, UNPUBLISHED

























3-71-3- F

SE of El Salto, Dgo.

-105.32

23.75

Ignimbrite

K/Ar

Feld

23.90

0.50

McDowell & Keitzer, 1977




























N of San Ignacio, Sin.

-106.43

24.06

Rhyolitic dike

K/Ar

Bio

23.80

0.30

Henry & Fredrikson, 1987

























UAKA 82-01

El Rosario, Bolanos, Zac.

-103.90

21.67

Andesite

K/Ar

Pl

23.70

0.60

Scheubel et al., 1988

























FM291

Juchipila, Zac.

-103.02

21.43

Ignimbrite

K/Ar

WR

23.70

1.40

Webber et al., 1994

























Ped Jal 15

P. La Cuna, Jal.

-103.78

21.01

Ignimbrite

K/Ar

Pl

23.60

0.50

Nieto-Obregón et al. 1981

























79-02

Las Canoas, Nay.

-104.32

22.43

Ignimbrite

K/Ar

Feld

23.51

0.50

Clark et al., 1981

























3-71-4 P

W of El Salto, Dgo.

-105.42

23.76

Ignimbrite

K/Ar

Pl

23.40

0.50

McDowell & Keitzer, 1976

























3-71-6 F

W of Las Adjuntas, Dgo.

-105.52

23.75

Ignimbrite

K/Ar

Feld

23.30

0.50

McDowell & Keitzer, 1977

















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