Cascada El Salto, Jal
-103.20
|
19.92
|
Andesite
|
K/Ar
|
WR
|
1.70
|
0.06
|
Nieto-Obregón et al. 1981
|
|
|
|
|
|
|
|
|
*
|
E Cofre de Perote, Ver
|
-97.00
|
19.50
|
Basalt
|
K/Ar
|
WR
|
1.70
|
0.00
|
Negendank et al. 1985
|
|
|
|
|
|
|
|
|
Hz 2
|
Zitacuaro area, Mich.
|
-100.10
|
19.25
|
Andesite
|
K/Ar
|
gms
|
1.70
|
0.30
|
CFE, 1992b
|
|
|
|
|
|
|
|
|
Ml 69
|
S Sayula, Jal.
|
-103.60
|
19.81
|
Dacite Ho
|
K/Ar
|
Hb
|
1.70
|
0.10
|
Allan 1986
|
|
|
|
|
|
|
|
|
CHP 722
|
Cerro Garcia, Jal.
|
-103.38
|
20.19
|
Andesite
|
K/Ar
|
|
1.69
|
0.54
|
Delgado et al., 1995
|
|
|
|
|
|
|
|
|
706
|
C. Grande La Piedad, Jal.
|
-102.08
|
20.25
|
Andesite
|
K/Ar
|
WR
|
1.60
|
0.10
|
Nixon et al. 1987
|
|
|
|
|
|
|
|
|
LTX-23
|
Plateau S. Andres, Tuxtlas, Ver.
|
-94.97
|
18.37
|
Alk.-Basalt
|
K/Ar
|
|
1.60
|
0.60
|
Jacobo-Albarrán et al., 1992
|
|
|
|
|
|
|
|
|
Ar 07
|
Atarjea de Tesc., Nay.
|
|
|
Andesite
|
K/Ar
|
gms
|
1.60
|
0.30
|
Ferrari et al., in prep.
|
|
|
|
|
|
|
|
|
Ls 443
|
ENE Zinapecuaro, Mich.
|
-100.75
|
19.88
|
Rhyolite (Obs.)
|
K/Ar
|
WR
|
1.60
|
0.15
|
Nixon et al., 1987
|
|
|
|
|
|
|
|
|
Hz 25
|
Zitacuaro area, Mich.
|
-100.33
|
19.38
|
Dacite
|
K/Ar
|
Hb
|
1.60
|
0.30
|
CFE, 1992b
|
|
|
|
|
|
|
|
|
NE 20
|
Nevado de Toluca
|
-99.63
|
18.88
|
Andesite
|
K/Ar
|
|
1.60
|
0.10
|
Cantagrel et al. 1981
|
|
|
|
|
|
|
|
|
VE 52
|
E Cofre de Perote
|
-96.80
|
19.48
|
Andesite
|
K/Ar
|
WR
|
1.57
|
0.07
|
Cantagrel et al. 1979
|
|
|
|
|
|
|
|
|
CHP 549
|
SSE Jocotepec, SW Chap. l.
|
-103.37
|
20.17
|
Andesite
|
K/Ar
|
|
1.56
|
0.50
|
Delgado G. H., 1992
|
|
|
|
|
|
|
|
|
VNE 5
|
Nevado de Toluca
|
-99.80
|
19.15
|
Andesite
|
K/Ar
|
WR
|
1.54
|
0.00
|
Cantagrel et al. 1981
|
|
|
|
|
|
|
|
|
AR 5
|
Mesa Comalera, Zinapecuaro
|
-100.80
|
19.85
|
Rhyolite
|
K/Ar
|
WR
|
1.53
|
0.13
|
Ferrari et al., 1991
|
|
|
|
|
|
|
|
|
195
|
San Sebastian, Jal.
|
-104.88
|
20.82
|
Bas.-Andesite
|
K/Ar
|
WR
|
1.52
|
0.12
|
Lange & Carmichael, 1992
|
|
|
|
|
|
|
|
|
Hz 40
|
Zitacuaro area, Mich.
|
-100.35
|
19.27
|
Andesite
|
K/Ar
|
gms
|
1.50
|
0.30
|
CFE, 1992b
|
|
|
|
|
|
|
|
|
VE 116
|
Pico de Orizaba
|
-98.11
|
19.63
|
Bas.-Andesite
|
K/Ar
|
WR
|
1.50
|
0.00
|
Cantagrel et al. 1979
|
|
|
|
|
|
|
|
|
KR 320
|
N Zacualpan, Nay.
|
-105.15
|
21.28
|
Basalt
|
Ar/Ar
|
gms
|
1.49
|
0.03
|
Righter et al., 1995
|
|
|
|
|
|
|
|
|
TUX-120
|
Plateau S. Andres, Tuxtlas
|
-95.17
|
18.62
|
Alk.-Basalt
|
K/Ar
|
|
1.46
|
0.29
|
Jacobo-Albarrán et al., 1992
|
|
|
|
|
|
|
|
|
Bl 3
|
N S. Marcos, Jal.
|
-103.53
|
20.35
|
Andesite
|
K/Ar
|
WR
|
1.44
|
0.02
|
Allan 1986
|
|
|
|
|
|
|
|
|
Cl 7
|
Cerro Tipicato, Coeneo
|
-101.61
|
19.85
|
Andesite
|
K/Ar
|
WR
|
1.40
|
0.40
|
Pasquarè et al., 1991
|
|
|
|
|
|
|
|
|
Ar 09
|
C. las Bartolinas, Nay.
|
-104.69
|
21.12
|
Andesite
|
K/Ar
|
WR
|
1.40
|
0.28
|
Ferrari et al., in prep.
|
|
|
|
|
|
|
|
|
W 1
|
C. Chicharron (RGS)
|
-103.42
|
20.90
|
Rhyolite
|
K/Ar
|
San
|
1.39
|
0.50
|
Spinnler et al., 1993
|
|
|
|
|
|
|
|
|
AZ 82
|
Cerro Cuate, Mich.
|
-100.75
|
19.84
|
Rhyolite
|
K/Ar
|
WR
|
1.39
|
0.05
|
Pradal and Robin, 1994
|
|
|
|
|
|
|
|
|
CHP 538
|
S. Cruz de las Flores
|
-103.52
|
20.48
|
Andesite
|
K/Ar
|
|
1.39
|
0.43
|
Delgado et al., 1995
|
|
|
|
|
|
|
|
|
KA 4287
|
NE Chapala, Guad.
|
-103.13
|
20.49
|
Basalt
|
K/Ar
|
WR
|
1.37
|
0.20
|
Gilbert et al. 1985
|
|
|
|
|
|
|
|
|
Jal 6
|
Santa Rosa, Jal.
|
-103.72
|
20.88
|
Alk.-Basalt
|
K/Ar
|
WR
|
1.34
|
0.20
|
Nieto-Obregón et al. 1985
|
|
|
|
|
|
|
|
|
M 231
|
Cantaro Complex, Col.
|
-103.71
|
19.71
|
Dacite Ho
|
K/Ar
|
Bio
|
1.33
|
0.20
|
Allan 1986
|
|
|
|
|
|
|
|
|
AZ 11
|
Ucareo, Mich.
|
-100.69
|
19.85
|
Rhyolite
|
K/Ar
|
WR
|
1.31
|
0.04
|
Pradal and Robin, 1994
|
|
|
|
|
|
|
|
|
Cl 48
|
N S. Marcos, Gua.
|
-103.53
|
20.35
|
Andesite
|
K/Ar
|
WR
|
1.31
|
0.19
|
Allan 1986
|
|
|
|
|
|
|
|
|
Pu 7
|
Volcan Grande, Puruandiro
|
-101.61
|
20.10
|
Basalt
|
K/Ar
|
WR
|
1.30
|
0.10
|
Pasquarè et al., 1991
|
|
|
|
|
|
| |
Share with your friends: |
