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



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BAJA CALIFORNIA SUR

















































383-5-3

Punta S. Telmo

-110.95

25.31

Ignimbrite Rhyol.

K/Ar




28.00

0.7

Hausback, 1984

























HM-3-13

A. S. Gregorio (S. Gr. Fm.)

-112.28

26.1

Ignimbrite Rhyol.

K/Ar




27.20

0.6

Hausback, 1984

























260

A. San Hilario (S.Gr. Fm.)

-110.99

24.21

Ignimbrite Rhyol.

K/Ar




25.50

0.4

Hausback, 1984

























482-26-7

Pump House area(S. Gr. Fm.)

-112.05

26.19

Ignimbrite Rhyol.

K/Ar




25.30

0.3

Hausback, 1984

























394

S of Quarry

-110.27

24.14

Ignimbrite Rhyol.

K/Ar




25.00

0.6

Hausback, 1984

























28-3-16

La Ventana (S. Gr. Fm.)

-112.18

26.12

Ignimbrite Rhyol.

K/Ar




23.90

0.4

Hausback, 1984

























28-3-8

N side A. Sauzoso

-110.65

24.3

Andesite

K/Ar




23.90

0.7

Hausback, 1984

























238

A. La Purisima (S. Gr. Fm.)

-112.18

26.12

Ignimbrite Rhyol.

K/Ar




23.40

0.3

Hausback, 1984

























Bj4

S of Quarry

-110.25

24.15

Ignimbrite Rhyol.

K/Ar




23.20

1.6

Hausback, 1984

























425

N side A. Sauzoso

-110.65

24.3

Andesite

K/Ar




22.70

1.7

Hausback, 1984

























178

C. El Indio

-110.30

24.28

Ignimbrite Rhyol.

K/Ar




22.00

0.4

Hausback, 1984

























292A

N arr. Camaron

-110.65

24.32

Ignimbrite Rhyol.

K/Ar




21.80

0.2

Hausback, 1984

























38

6 km S S.J. de la Costa

-110.78

24.44

Ignimbrite Rhyol.

K/Ar




21.50

0.4

Hausback, 1984

























266

Isla Espiritu Santo

-110.34

24.52

Ignimbrite Rhyol.

K/Ar




21.20

0.2

Hausback, 1984

























317

6 km S S.J. de la Costa

-110.68

24.34

Ignimbrite Rhyol.

K/Ar




21.00

0.4

Hausback, 1984

























45

La Paz (Ferry term.)

-110.32

24.27

Rhyolite tephra

K/Ar




20.60

0.2

Hausback, 1984

























45

NW Salinas (el Coyote)

-110.26

24.3

Ignimbrite Rhyol.

K/Ar




20.30

0.5

Hausback, 1984

























383

Playa Pichilingue

-110.32

24.27

Andesite

K/Ar




20.30

0.4

Hausback, 1984

























239

NE La Paz

-110.27

24.15

Ignimbrite Rhyol.

K/Ar




20.00

0.4

Hausback, 1984

























3

NE La Paz

-110.27

24.15

Ignimbrite Rhyol.

K/Ar




19.80

0.3

Hausback, 1984

























119B

Coromuel

-110.28

24.19

Rhyodacite

K/Ar




19.70

0.2

Hausback, 1984

























45

Old Loreto grade

-110.49

25.97

Andesite

K/Ar




19.40

0.9

Hausback, 1984

























Bj2

2 km NE cementery

-110.27

24.17

Rhyodacite

K/Ar




19.20

0.5

Hausback, 1984

























Bj1

SW side C. Atravesado

-110.28

24.12

Rhyodacite

K/Ar




19.10

1.2

Hausback, 1984

























28

N cement. NE La Paz

-110.28

24.16

Rhyolite pum

K/Ar




18.70

1.1

Hausback, 1984

























383-10-1A

Cerro El Indio

-110.30

24.28

Andesite

K/Ar




18.60

2.4

Hausback, 1984

























57A

NE La Paz

-110.27

24.15

Ignimbrite Rhyol.

K/Ar




18.00

0.6

Hausback, 1984

























57B

S. Juan de La Costa

-110.70

24.35

Ignimbrite Rhyol.

K/Ar




17.80

0.3

Hausback, 1984

























286

S. Juan de La Costa

-110.69

24.37

Ignimbrite Rhyol.

K/Ar




17.20

0.6

Hausback, 1984

























429

W side of Isla E. Santu

-110.38

24.47

Andesite

K/Ar




16.50

0.3

Hausback, 1984

























Bj3

S. Juan Tuff

-110.69

24.36

Ignimbrite Rhyol.

K/Ar




16.40

0.6

Hausback, 1984














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