This article is about the geological process. For the mining term, see Stoping (mining).
Stoping is a process accommodating the ascent of magmatic bodies from their sources in the mantle or lower crust to the surface. The theory was independently developed by Canadian geologist Reginald Aldworth Daly[1] and American geologist Joseph Barrell.[2]
White granite intruding and stoping black basalt at Whale Cove, Nunavut
The process involves the mechanical disintegration of the surrounding country/host rock, typically through fracturing due to pressure increases associated with thermal expansion of the host rock in proximity of the interface with the melt. After fractures are formed, melt and/or volatiles will typically invade, widening the fracture and promoting the foundering of host rock blocks (i.e. stoped blocks). Once suspended in the melt, stoped blocks may either sink or float depending upon the density of the block relative to that of the melt. Additionally, blocks submerged within melt are subject to further thermally-induced fracturing which may account for the often observed "lack of evidence" for the process of stoping.
stoping, geology, this, article, about, geological, process, mining, term, stoping, mining, stoping, process, accommodating, ascent, magmatic, bodies, from, their, sources, mantle, lower, crust, surface, theory, independently, developed, canadian, geologist, r. This article is about the geological process For the mining term see Stoping mining Stoping is a process accommodating the ascent of magmatic bodies from their sources in the mantle or lower crust to the surface The theory was independently developed by Canadian geologist Reginald Aldworth Daly 1 and American geologist Joseph Barrell 2 White granite intruding and stoping black basalt at Whale Cove Nunavut The process involves the mechanical disintegration of the surrounding country host rock typically through fracturing due to pressure increases associated with thermal expansion of the host rock in proximity of the interface with the melt After fractures are formed melt and or volatiles will typically invade widening the fracture and promoting the foundering of host rock blocks i e stoped blocks Once suspended in the melt stoped blocks may either sink or float depending upon the density of the block relative to that of the melt Additionally blocks submerged within melt are subject to further thermally induced fracturing which may account for the often observed lack of evidence for the process of stoping See also editMethods of pluton emplacementReferences edit Reginald Aldworth Daly Encyclopaedia Britannica 1925 Biographical Memoir of Joseph Barrell by Charles Schuchert nbsp This article about geological processes is a stub You can help Wikipedia by expanding it vte nbsp This article about igneous petrology is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Stoping geology amp oldid 1167396767, wikipedia, wiki, book, books, library,
