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Sample MV-21
NavDat sample number 127390 · TONALITE
Sample
| Sample ID | MV-21 |
|---|
| Rock name | TONALITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | age from Mora-Alvarez, G., 1992, History of Cenozoic magmatism in the Sierra Santa Ursula, Sonora, Mexico [M.S. thesis]: Austin, University of Texas, 153 p. |
Location
| Latitude | 27.9414 |
|---|
| Longitude | -110.073 |
|---|
| Location | San Carlos |
|---|
| State / province | Sonora |
|---|
| Country | MEXICO |
|---|
| Location comment | W of Guaymas |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 83 |
|
81 |
85 |
|
|
References
- Valencia-Moreno, Martin; Ruiz, Joaquin; Barton, Mark D; Patchett, P Jonathan; Zuercher, Lukas; Hodkinson, Damian G; Roldan-Quintana, Jaime (2001) A chemical and isotopic study of the Laramide granitic belt of northwestern Mexico; identification of the southern edge of the North American Precambrian basement. Geological Society of America Bulletin, vol.113, no.11, pp.1409-1422, Nov 2001 doi:10.1130/0016-7606(2001)113<1409:ACAISO>2.0.CO;2