| Site Type: | Various |
| Site Status: | |
| Grid Reference: | |
| Google maps: | , |
| Rocks |
|---|
| Rock Age: | Devonian, Silurian, Ordovician, Precambrian |
| Rock Name: | Tyrone Volcanic Group, Newry Igneous Complex, Old Red Sandstone, Pomeroy Granite, Slieve Gallion Granodiorite, Tyrone Plutonic Group |
| Rock Type: | Basalt, Breccia, Breccia, Volcanic, Chert, Feldspar porphyry, Gabbro, Granite, Granodiorite, Granophyre, Greywacke, Hornfels, Microgranite, Mylonite, Pegmatite, Pillow lava, Porphyry, Quartz porphyry, Quartz-feldspar porphyry, Rhyolite, Shale, Tuff, Turbi |
| Interest |
|---|
| Fossil Groups: | Graptolite |
| Other interest: | breccia, Caledonian, dyke, fiamme, mineral vein, tuff, turbidite, pluton, enclave, normal zoning, mineral layering, ophiolite, pillow lava, lopolith, Extrusion, Intrusion |
Since the 1960's the evolution of the world's metamorphic belts, including the Caledonides have been viewed in the context of global plate tectonic theory. Plate tectonics and in particular the key mechanism of continental drift, have revolutionized the way that geologists have modeled the evolution of the continents. Plate tectonic theory offers a mechanism whereby, through geological time, large areas of lithospheric crust (plates) can migrate large distances across the surface of the Earth. Oceans open and close, and in the process create sedimentary depositional basins and mountain chains. Plate tectonic models also provide the key to our understanding of the origins of magmatic activity and the important relationship between igneous rocks type and tectono-stratigraphic environment.
