http://earthwise.bgs.ac.uk/index.php/Antrim_Lava_Group,_Palaeogene_extrusive_igneous_rocks,_Northern_Ireland Apr 13, 2024 ·
The Age of the Antrim Lava Group, Northern Ireland, and
WebJul 22, 2011 · @article{Ganerd2011GeochronologyOT, title={Geochronology of the Tardree Rhyolite Complex, Northern Ireland: implications for zircon fission track studies, the North … WebMar 14, 2024 · In the Thulean Tertiary igneous province former tridymite is known from certain acid lavas, for example, the Tardree rhyolite (von Lasaulx, 1877) and certain Icelandic liparites (Hawkes, 1916), and from metamorphosed arkoses adjacent to basic igneous intrusions (Harker, 1908, 1932), but it has not previously been noted in the … fake twin ultrasound
Hydrothermal alteration processes of the Tertiary lavas of …
WebJun 11, 2024 · The controls necessary for the enrichment of these and other elements to achieve economic levels are a complex balance of geochemical, geographical, and biological parameters. Specific conditions leading to laterite formation have been documented previously ( Grubb, 1963 ; Bardossy and Aleva, 1990 ; Oliviera and Campos, … WebNumbers refer to igneous centres; 1. Tardree (rhyolite), 2. Scrabo Sill (dolerite), 3a. Newry Igneous Complex (granodiorite) including 3b. Slieve Gullion, 4. Mourne Mountains (granites), 5. ... A rhyolite complex associated with the Antrim Lava Group is located in county Antrim. Numerous Palaeogene dyke swarms and sills including the Scrabo ... WebPerlite, the industrial name for volcanic glass, occurs at Sandy Braes [J 320 396] southeast of Ballymena, Co. Antrim where it forms part of the Palaeogene Tardree Rhyolite Complex (see Palaeogene intrusive igneous rocks article). A nearby occurrence at Loonburn [J 322 395] is a sinuous lenticular deposit formed from an ash flow. fake ultrasound free