CM 4
Cinco Minas, Jal.
|
-103.93
|
21.03
|
Basalt
|
K/Ar
|
gms
|
3.77
|
0.60
|
Nieto-Obregón et al. 1985
|
|
|
|
|
|
|
|
|
LTX-113
|
El Vigia, Los Tuxtlas, Ver.
|
-95.35
|
18.45
|
Alk.-Basalt
|
K/Ar
|
|
3.76
|
0.12
|
Jacobo-Albarrán et al., 1992
|
|
|
|
|
|
|
|
|
Am 61
|
Sta. Rosa, Amealco, Qro.
|
-100.17
|
20.13
|
Andestite
|
K/Ar
|
gms
|
3.74
|
0.25
|
Aguirre, 1997
|
|
|
|
|
|
|
|
|
Ped Jal 23
|
Mesa Mistemeque, Jal.
|
-103.93
|
21.02
|
Basalt
|
K/Ar
|
WR
|
3.72
|
0.06
|
Nieto-Obregón et al. 1985
|
|
|
|
|
|
|
|
|
Am 179
|
Coronita, Amealco, Qro.
|
-100.32
|
20.12
|
Rhyolite
|
K/Ar
|
glass
|
3.72
|
0.27
|
Aguirre, 1997
|
|
|
|
|
|
|
|
|
LI 106
|
Chiconquiaco-Palma Sola, Ver.
|
-96.78
|
19.65
|
Basalt alk.
|
K/Ar
|
WR
|
3.70
|
0.40
|
Lopez-Infanzon, 1990
|
|
|
|
|
|
|
|
|
Am 78
|
Hormigas, Amealco, Qro.
|
-100.20
|
20.17
|
Andesite
|
K/Ar
|
gms
|
3.70
|
0.39
|
Aguirre, 1997
|
|
|
|
|
|
|
|
|
Mas 521
|
La Coronilla, N RGS, Jal.
|
-103.28
|
20.85
|
Basalt
|
K/Ar
|
gms
|
3.69
|
0.13
|
Moore et al., 1994
|
|
|
|
|
|
|
|
|
|
|
|
|
Andesite
|
K/Ar
|
WR
|
3.60
|
0.30
|
IMP, UNPUBLISHED
|
|
|
|
|
|
|
|
|
LI 102
|
Chiconquiaco-Palma Sola, Ver.
|
-96.75
|
19.62
|
Basalt alk.
|
K/Ar
|
WR
|
3.60
|
0.40
|
Lopez-Infanzon, 1990
|
|
|
|
|
|
|
|
|
KR-109
|
C. Tio Cleto, Jal.
|
-104.50
|
20.63
|
Alk.-Basalt
|
K/Ar
|
gms
|
3.55
|
0.21
|
Righter & Carmichael, 1992
|
|
|
|
|
|
|
|
|
Am 81
|
Huichapan tuff, Hgo.
|
-99.98
|
20.13
|
Ignimbrite
|
K/Ar
|
glass
|
3.52
|
0.16
|
Aguirre, 1997
|
|
|
|
|
|
|
|
|
*
|
Teziutlan, Pue.
|
-97.48
|
19.77
|
Andesite
|
K/Ar
|
|
3.50
|
0.00
|
Yanez-G. and Garcia-D. 1980
|
|
|
|
|
|
|
|
|
LI 109
|
Chiconquiaco-Palma Sola, Ver.
|
-96.78
|
19.67
|
Trachy-basalt
|
K/Ar
|
WR
|
3.49
|
0.35
|
Lopez-Infanzon, 1990
|
|
|
|
|
|
|
|
|
KA 3051
|
Guadalajara, Jal.
|
-103.31
|
20.74
|
Ignimbrite
|
K/Ar
|
|
3.44
|
0.10
|
Gilbert et al. 1985
|
|
|
|
|
|
|
|
|
AZ 146
|
Presa Sta. Ines, Gto.
|
-100.60
|
19.98
|
Ignimbrite
|
K/Ar
|
WR
|
3.40
|
0.10
|
Pradal and Robin, 1994
|
|
|
|
|
|
|
|
|
|
Sierra Las Cruces, Mex.
|
-99.35
|
19.55
|
Dacite
|
K/Ar
|
WR
|
3.40
|
|
Negendank et al., 1981
|
|
|
|
|
|
|
|
|
LTX-67
|
El Vigia, Los Tuxtlas, Ver.
|
-95.36
|
18.53
|
Alk.-Basalt
|
K/Ar
|
|
3.40
|
0.20
|
Jacobo-Albarrán et al., 1992
|
|
|
|
|
|
|
|
|
KR 403C
|
Sta. Cruz Camotlán, Nay.
|
-104.68
|
20.97
|
Basalt
|
Ar/Ar
|
WR
|
3.38
|
0.05
|
Righter et al., 1995
|
|
|
|
|
|
|
|
|
KR-122
|
M. Llano Grande, Nay.
|
-104.53
|
20.80
|
Alk.-Basalt
|
K/Ar
|
gms
|
3.38
|
0.10
|
Righter & Carmichael, 1992
|
|
|
|
|
|
|
|
|
KR 386
|
Jalotemba, Nay.
|
-105.17
|
21.40
|
Alk.-Basalt
|
K/Ar
|
gms
|
3.36
|
0.17
|
Righter et al., 1995
|
|
|
|
|
|
|
|
|
213
|
Atenguillo, Jal.
|
-104.43
|
20.46
|
Lamprophire
|
K/Ar
|
gms
|
3.30
|
0.14
|
Wallace & Carmichael, 1989
|
|
|
|
|
|
|
|
|
ROE 144
|
Ixtlan de Los Herv., Mich.
|
-102.36
|
20.14
|
Andesite
|
K/Ar
|
WR
|
3.30
|
0.30
|
Rosas et al., 1989
|
|
|
|
|
|
|
|
|
LTX-33
|
Barrosa, Los Tuxtlas, Ver.
|
-95.14
|
18.19
|
Alk.-Basalt
|
K/Ar
|
|
3.30
|
0.26
|
Jacobo-Albarrán et al., 1992
|
|
|
|
|
|
|
|
|
Mas-704
|
E San Marcos, Jal.
|
-103.52
|
20.20
|
Bas.-Andesite
|
K/Ar
|
gms
|
3.29
|
0.12
|
Moore et al., 1994
|
|
|
|
|
|
|
|
|
B 69
|
E of Tapalpa, Jal.
|
-103.70
|
19.93
|
Lamprophyre
|
K/Ar
|
WR
|
3.29
|
0.02
|
Allan 1986
|
|
|
|
|
|
|
|
|
Mas 530
|
N Hostotipaquillo, Jal.
|
-103.99
|
21.05
|
Basalt
|
K/Ar
|
gms
|
3.26
|
0.18
|
Moore et al., 1994
|
|
|
|
|
|
|
|
|
KA 4155
|
Guadalajara, Jal.
|
-103.39
|
20.70
|
Ignimbrite
|
K/Ar
|
|
3.23
|
0.08
|
Gilbert et al. 1985
|
|
|
|
|
|
|
|
|
TQ-308
|
Hostotipaquillo, Jal.
|
-103.95
|
21.03
|
Basalt
|
K/Ar
|
gms
|
3.19
|
0.26
|
Moore et al., 1994
|
|
|
|
|
|
|
|
|
241
|
Atenguillo, Jal.
|
-104.39
|
20.25
|
Lamprophire
|
K/Ar
|
|
3.16
|
0.06
|
Wallace & Carmichael, 1989
|
|
|
|
|
|
|
|
|
KR 389
|
Jalotemba, Nay.
|
-105.18
|
21.40
|
Alk.-and.
|
K/Ar
|
gms
|
3.11
|
0.07
|
Righter et al., 1995
|
|
|
|
|
|
|
|
|
Az 20b
|
Los Azufres (800-1000), Mich.
|
-100.68
|
19.75
|
Dacite (Ign?)
|
K/Ar
|
|
3.10
|
0.20
|
Aumento and Negrin 1980
|
|
|
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