The Cleveland Dyke in southern Scotland

Dagley, P.; Skelhorn, R. R.; Mussett, A. E.; James, Susan; Walsh, J. N.

doi:10.1144/sjg44020123

Cited by 12 publications

(31 citation statements)

References 25 publications

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“…The dashed line extending south from the Stevenson-Coylton dyke is the course of the Cleveland dyke inferred by MacGregor (1930). It coincides south of the Southern Upland Fault with a magnetic anomaly which marks either the subsurface extension of the Cleveland dyke (Dagley et al 2008) and/or a group of minor dykes using the same conduit as the Cleveland dyke (Macdonald et al 2010). Note, in the NW corner, the dyke apparently changing its strike as it approaches the Inchgotrick Fault.…”

Section: Distribution and Field Characteristicsmentioning

confidence: 92%

“…It then turns (1930). The broken lines mark the magnetic anomaly determined by Dagley et al (2008) and thought by them to represent the subsurface extension of the Cleveland dyke. The anomaly is coincident with MacGregor's (1930) Busby et al (2009).…”

Section: Distribution and Field Characteristicsmentioning

confidence: 99%

“…This does not explain, however, why the dykes approached the fault tangentially, why the Bracken Bay-Straiton dyke first crossed and then ran parallel to it, or why at a later stage the Stevenston-Coylton changed direction again to cross it. Dagley et al (2008) conducted a detailed ground magnetic survey in the Southern Uplands over an anomaly which Table 1c, cols CB-CU). (b) Zoned plagioclase phenocryst in sample MH1.…”

Section: Intrusion Of the Bracken Bay-straiton Dykementioning

confidence: 99%

“…The Stevenston-Coylton dyke was deflected from its NW-SE course to travel 3 km along the Southern Upland Fault before The Palaeogene Bracken Bay-Straiton dyke: composition and controls on intrusion crossing the fault and adopting its previous trend (MacGregor 1930;Macdonald et al 1988Macdonald et al , 2010Dagley et al 2008;Busby et al 2009) (Fig. 2).…”

Section: Introductionmentioning

confidence: 99%

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The Palaeogene Bracken Bay–Straiton dyke: composition and controls on intrusion

MacDonald

Bagiński

MacInnes

et al. 2014

SJG

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Synopsis The Bracken Bay–Straiton dyke, a member of the Palaeogene Mull dyke swarm, is one of the Solitary dykes of southern Scotland and northern England recognized by Geikie (1897). It shows a remarkable (unique?) change of strike direction, deviating from the regional NW–SE trend to propagate along the Southern Upland Fault for 16 km before apparently resuming its southeasterly course in the Southern Uplands. The dyke is a clinopyroxene–plagioclase–phyric quartz tholeiite, showing little petrographic variation along strike. However, geochemical data indicate that the dyke segment south of the Southern Upland Fault is not comagmatic with the main dyke; it is here distinguished as the Kello Water dyke. The reason for the dyke’s deviation at the fault is uncertain but may be related to a significant role for crustal heterogeneities, particularly Caledonian fractures which had earlier been utilized by the Late Carboniferous quartz dolerite dyke swarm. Supplementary material: Electron microprobe analysis data are available at http://www.geolsoc.org.uk/SUP18737 .

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Section: Distribution and Field Characteristicsmentioning

confidence: 92%

Section: Distribution and Field Characteristicsmentioning

confidence: 99%

Section: Intrusion Of the Bracken Bay-straiton Dykementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Palaeogene Bracken Bay–Straiton dyke: composition and controls on intrusion

MacDonald

Bagiński

MacInnes

et al. 2014

SJG

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“…1). Although taken by Dagley et al (2008) to be part of the Cleveland Dyke, the minor dykes have trace element compositions distinct from it and, in many cases, from each other (Macdonald et al 2010). Several magma pulses apparently used the same conduit as the Cleveland Dyke.…”

Section: Composite Nature Of Distal Intrusionsmentioning

confidence: 99%

The Mull Paleocene dykes: some insights into the nature of major dyke swarms

MacDonald

Fettes

Bagiński

2015

SJG

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At about 1000 km long and with a magmatic volume exceeding 850 km 3 , the Paleocene Mull Dyke Swarm qualifies as a giant dyke swarm. As such, it offers important insights into the nature of such swarms. Magma flowage laterally from the Mull Central Complex is supported by evidence of recent magma flowage in rift-related volcanic areas. Conduits were frequently used by more than one magma pulse at different times. Pre-heating of conduits by basaltic magma enabled salic magmas to propagate for >400 km from Mull. The Southern Upland Fault had a major influence on dyke propagation in the southern sector of the swarm, variably arresting magma migration or diverting magma vertically or laterally, in one case for 16 km laterally. A significant role for crustal heterogeneity in controlling dyke dynamics is advocated. Recent models point to important interactions between the dykes and adjacent Paleocene central complexes. The dyke swarm can potentially contribute significant information on the evolution of the Mull plumbing system, such as the formation of compositional zoning and the role of magma input in chamber rupture.

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Large‐volume lateral magma transport from the Mull volcano: An insight to magma chamber processes

Ishizuka

Taylor

Geshi

et al. 2017

Geochem Geophys Geosyst

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Long-distance lateral magma transport within the crust has been inferred for various magmatic systems including oceanic island volcanoes, mid-oceanic ridges, and large igneous provinces. However, studying the physical and chemical properties of active fissure systems is difficult. Hence, this study investigates the movement of magma away from the Mull volcano in the North Atlantic Igneous Province, where erosion has exposed its upper crustal dike networks. Magmatic lineations within dikes indicate that the magma flow in the Mull dike suite changed from near vertical to horizontal within 30 km of the volcanic center. This implies that distal dikes were fed by lateral magma transport from Mull. Geochemical characteristics indicate that many <50 km long dikes have deep crustal signatures, reflecting storage and assimilation in Lewisian basement. Following crystallization and assimilation in the lower crust, magma fed an upper crustal reservoir, where further fractionation and incorporation of Moinian rocks generated felsic compositions. Distal dikes are andesitic and reflect events in which large volumes of mafic and felsic magma were combined by mixing between lower and upper crustal reservoirs to generate the 30-80 km 3 required to supply the long-distance dikes. Once propagated, compositions along dikes were not significantly affected by assimilation and crystallization. Supplying the distal dikes with magma would have required a large-scale evacuation of the crustal reservoirs that acted as a potential trigger for explosive volcanism and the caldera formation recorded in Mull central complex.

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The Cleveland Dyke in southern Scotland

Cited by 12 publications

References 25 publications

The Palaeogene Bracken Bay–Straiton dyke: composition and controls on intrusion

The Palaeogene Bracken Bay–Straiton dyke: composition and controls on intrusion

The Mull Paleocene dykes: some insights into the nature of major dyke swarms

Large‐volume lateral magma transport from the Mull volcano: An insight to magma chamber processes

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