Caldera formation in the Rum Central Igneous Complex, Scotland

  title={Caldera formation in the Rum Central Igneous Complex, Scotland},
  author={Valentin R. Troll and C. Henry Emeleus and Colin H. Donaldson},
  journal={Bulletin of Volcanology},
Abstract. The Northern Marginal Zone of the Rum Central Igneous Complex in NW Scotland represents part of the early, felsic phase of the volcano. The marginal zone is a relic of the early caldera floor and the infilling of sedimentary and igneous rocks. Its formation has been explored through field examination of the ring fracture system of the Complex and its pyroclastic and epiclastic intracaldera facies. A sequence of magmatic tumescence and chamber growth caused initial doming, followed by… 
Felsites and breccias in the Northern Marginal Zone of the Rum Central Complex: changing views, c. 1900–2000
SUMMARY As in several other parts of the British Tertiary Igneous Province, breccias and felsite sheets are closely associated on the Isle of Rum. This association has been described and interpreted
Collapse mechanism of the Paleogene Sakurae cauldron, SW Japan
The Paleogene Sakurae cauldron of SW Japan is characterized by a nested structure with a polygonal outline (21×13 km2) including a circular collapsed part (5 km in diameter). Total thickness of the
The formation and evolution of the Central Arran Igneous Complex
The Central Arran Igneous Complex – a system of intrusive and pyroclastic volcanic rocks – is one of the least understood onshore ‘central complexes’ of the British Palaeogene Igneous Province
Pre-eruptive magma mixing in ash-flow deposits of the Tertiary Rum Igneous Centre, Scotland
The Northern Marginal Zone of the Rum Igneous Centre is a remnant of an early caldera and its infill. It is composed of intra-caldera breccias and various small-volume pyroclastic deposits, overlain
Fault-Controlled Magma Ascent Recorded in the Central Series of the Rum Layered Intrusion, NW Scotland
The Palaeogene layered ultrabasic intrusion of the Isle of Rum forms the hearth of the Rum Igneous Centre in NW-Scotland. The regional Long Loch Fault, which is widely held to represent the feeder
Early mafic magmatism and crustal anatexis on the Isle of Rum: evidence from the Am Màm intrusion breccia
Abstract The Rum Igneous Centre comprises two early marginal felsic complexes (the Northern Marginal Zone and the Southern Mountains Zone), along with the later central ultrabasic–basic layered
Intrusive history of the Slieve Gullion ring dyke, Ireland: implications for the internal structure of silicic sub-caldera magma chambers
Abstract The Palaeogene Slieve Gullion Igneous Complex comprises a layered central intrusion surrounded by a slightly older ring dyke. The ring dyke contains two major intrusive rock types. About 70%
A proximal record of caldera-forming eruptions: the stratigraphy, eruptive history and collapse of the Palaeogene Arran caldera, western Scotland
Caldera-forming volcanic eruptions are among the most dangerous, and can generate extensive pyroclastic deposits and deliver ash into global atmospheric circulation systems. As calderas collapse, the