Doolough granite, Mayo County, Connacht, Irelandi
| Regional Level Types | |
|---|---|
| Doolough granite | Outcrop |
| Mayo County | County |
| Connacht | Province |
| Ireland | Country |
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Latitude & Longitude (WGS84):
54° 9' 21'' North , 9° 56' 21'' West
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Belmullet | 1,089 (2017) | 8.4km |
| Knocknalower | 612 (2014) | 12.2km |
| Bangor | 293 (2013) | 13.0km |
| Dooagh | 582 (2014) | 23.5km |
| Achill Sound | 275 (2014) | 25.4km |
The granite is exposed along the shore of Blacksod Bay. The central outcrop is c. 500 m long.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β 'Hornblende' Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β Magnetite Formula: Fe2+Fe3+2O4 Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β Microcline Formula: K(AlSi3O8) Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β 'Monazite' Formula: REE(PO4) Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β Quartz Formula: SiO2 Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β Titanite Formula: CaTi(SiO4)O Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
| β Zircon Formula: Zr(SiO4) Reference: Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642.; Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| β | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| β | Microcline | 9.FA.30 | K(AlSi3O8) |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | Titanite | 9.AG.15 | CaTi(SiO4)O |
| β | Zircon | 9.AD.30 | Zr(SiO4) |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| β | 'Hornblende' | - | |
| β | 'Monazite' | - | REE(PO4) |
| β | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| O | Oxygen | |
| O | β Quartz | SiO2 |
| O | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | β Microcline | K(AlSi3O8) |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| O | β Zircon | Zr(SiO4) |
| O | β Monazite | REE(PO4) |
| O | β Magnetite | Fe2+Fe23+O4 |
| O | β Titanite | CaTi(SiO4)O |
| F | Fluorine | |
| F | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Na | Sodium | |
| Na | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Al | Aluminium | |
| Al | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | β Microcline | K(AlSi3O8) |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | β Microcline | K(AlSi3O8) |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Si | β Zircon | Zr(SiO4) |
| Si | β Titanite | CaTi(SiO4)O |
| P | Phosphorus | |
| P | β Monazite | REE(PO4) |
| K | Potassium | |
| K | β Microcline | K(AlSi3O8) |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Ca | Calcium | |
| Ca | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | β Titanite | CaTi(SiO4)O |
| Ti | Titanium | |
| Ti | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Ti | β Titanite | CaTi(SiO4)O |
| Fe | Iron | |
| Fe | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Fe | β Magnetite | Fe2+Fe23+O4 |
| Zr | Zirconium | |
| Zr | β Zircon | Zr(SiO4) |
Geochronology
Mineralization age: Mesoproterozoic : 1093 Β± 78 MaImportant note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
| Geologic Time | Rocks, Minerals and Events | ||||||
|---|---|---|---|---|---|---|---|
| Precambrian | |||||||
| Proterozoic | |||||||
| Mesoproterozoic | |||||||
| Stenian |
| ||||||
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Woolley A.R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe, p.357
Aftalion, M., & Max, M. D. (1987). U-Pb zircon geochronology from the Precambrian Annagh Division gneisses and the Termon granite, NW County Mayo, Ireland. Journal of the Geological Society, 144(3), 401-406.
Winchester, J. A., & Max, M. D. (1987). A displaced and metamorphosed peralkaline granite related to the late Proterozoic Labrador and Gardar suites: the Doolough Granite of County Mayo, northwest Ireland. Canadian Journal of Earth Sciences, 24(4), 631-642.
Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
Ireland (island)Island
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