WebRock exposures are of chalk (Ulster White Limestone) with the dark grey–brown dolerite dyke trending east–west in the centre of the view. Magnetite occurs along the northern margin of the dyke. Figure 4. The northern margin of the dyke showing the dark grey, fine-grained magnetite rock in sharp contact with dolerite (top, Web14 Jun 2006 · The Ulster White Limestone Formation is an unusual chalk because it underwent a period of post-depositional emergence and erosion, followed by burial under …
Ballycastle Pellet Chalk - Habitas
Web27 Oct 2024 · The Clay-with-Flints occurs between the eroded top of the Upper Cretaceous chalk of the Ulster White Limestone Formation, ranging in age from Santonian to Maastrichtian (Mitchell, 2004 b ), and below the succeeding Paleocene basalts of the Antrim Lava Group (Cooper, 2004; GSNI, 1997 ). Web21 Feb 2011 · The Antrim Lava Group (the ‘basalts’) and the underlying Ulster White Limestone Formation (the ‘chalk’) occupy a third of the land area of Northern Ireland. … ingeniar inoxidables
Cavehill - Wikipedia
WebGuidance and literature: White Rocks ASSI. White Rocks contains the type sections for the Portrush, Ballymagarry and Tanderagee Chalk Members of the Cretaceous Ulster White … WebIt overlies typical Ulster White Limestone, forming a rather irregular mass enveloped by the lowest basalt flow above. It is one of very few occurrences in Northern Ireland where late … WebGuidance and literature: Castle Point ASSI. The limestone rocks exposed in the cliffs and rock platforms between Ballycastle Harbour and Port Calliagh belong to the Ulster White Limestone Formation and are overlain by basalt of the Antrim Lava Group. The Ballycastle and Port Calliagh Chalk Members have their type localities within the site. mithril pickaxe hypixel skyblock