Geographic location |
-110.958333, 33.403333
110°
57'
30"
W,
33°
24'
12"
N
Gila county,
AZ
Inspiration
1:24,000 scale map quadrangle
Accurate to within 1 minute (~1 mile)
DRILL HOLE SOUTH OF THE PINTO VALLEY PIT, GLOBE-MIAMI DISTRICT
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Source of sample | Core or cutting |
Rock name | Porphyry |
Description | UNALTERED, PORPHYRY PHASE OF THE SCHULTZE GRANITE |
Laboratories | USGS Menlo Park |
Compiler name | Marvin, R.F. |
Date compiled | 1984 11 |
Precision of location | Accurate to within 1 minute (~1 mile) |
Location comment | DRILL HOLE SOUTH OF THE PINTO VALLEY PIT, GLOBE-MIAMI DISTRICT |
Bibliographic reference | Creasey, S.C., 1980, Chronology Of Intrusion and Deposition Of Porphyry Copper Ores, Globe-Miami District, Arizona: Economic Geology, v. 75, p. 830-844. |
(click for info) | |
Geologic map unit | -110.958333, 33.403333 |
Nearby scientific data | Find additional scientific data near this location |
Age estimate | 64.4 ± 0.7Ma |
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Type of analysis | conventional K-Ar |
Rock or mineral analyzed | biotite |
Analytical details | |
Lab sample ID | 9 |
Decay constants | 4.962E-04, 0.581E-04, 1.1167E-04 |
Radiogenic 40Ar concentration | 8.6417 |
Radiogenic Ar | 69 % |
Comments | ROCK PROBABLY FORMED 60-65 M.Y. AGO |