XVI. The Hurlet Sequence in North Ayrshire

Macnair, Peter

doi:10.1144/transglas.15.2.200

Cited by 5 publications

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“…Undoubtedly the best section of the Hurlet Limestone and the strata immediately underlying it to be seen in the Hurlet district is that exposed in Arkleston cutting, east of Paisley, and a comparison of it with the Thorntonhall and Brae head sections shows the close resemblance of the strata at the two localities (16). We have shown that what in all probability is the Blackbyre Limestone cropped out to the west of the bridge over the railway at Arkleston.…”

Section: Description Op Sectionsmentioning

confidence: 63%

XXIII. The Hurlet Sequence in North Lanarkshire

Macnair¹

1916

TRNGL

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Section: Description Op Sectionsmentioning

confidence: 63%

XXIII. The Hurlet Sequence in North Lanarkshire

Macnair¹

1916

TRNGL

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“…The new correlation resembles that of Richey (1924Richey ( , 1925Richey et al 1930) below the level of the supra-Dockra (Hurlet) disconformity and that of Wilson (1979) for the Hosie Limestones though for somewhat different reasons. It only corresponds with MacNair's (1915) correlations at the level of the Top Hosie Limestone, but it does agree in emphasizing the importance of disconformities. MacNair was perhaps unfortunate in that his knowledge of the successions was incomplete.…”

Section: And Can Be Traced Westwards Tomentioning

confidence: 78%

“…Stigmarian roots and rootlets may penetrate down into the limestone (eg. 3, 72, 73) and as was recognized by both MacNair (1915MacNair ( ,1917 and Richey (1925Richey ( ,1946b the characters of the limestone result from the effects of penecontemporaneous leaching. That this represents a disconformity within the sequence was first appreciated by Craig (1882Craig ( ,1885 and has been most explicitly stated by Richey (1925,1946b) and Richey et al (1930) who provided clear evidence for the secondary nature of the bleaching and for erosion of the limestone.…”

Section: Introductionmentioning

confidence: 92%

“…2). Both MacNair (1915) and Carruthers and Richey (1915) also believed that the Top Hosie Limestone and Ayrshire Hosie D are equivalent on the basis of their lithological similarity, their position relative to the overlying Johnstone Shell Bed and the presence of Posidonia corrugata. Carruthers and Richey (1915) also pointed out that the correlation of Top and Second Hosie Limestones with Ayrshire Hosie Limestones C and D is supported by the correspondence between the Lillie's Shale Coal and the Hosie Fireclay (Fig.…”

Section: And Can Be Traced Westwards Tomentioning

confidence: 99%

“…In the North Ayrshire succession however there is no bed with these characters and its correlation therefore poses some problems. Both MacNair (1915) and Carruthers and Richey (1915) suggested that the Blackhall Limestone is equivalent to one of the Ayrshire Hosie Limestones but their grounds for these correlations are not compelling. It is here suggested (Fig.…”

Section: And Can Be Traced Westwards Tomentioning

confidence: 99%

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The Upper Brigantian (Lower Carboniferous) of Central Strathclyde

Whyte¹

1981

SJG

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Synopsis The stratigraphy of the upper Brigantian (Lower Limestone Group and upper Calciferous Sandstone Measures) of the south-west margin of the Central Coalfield, of North and Central Ayrshire and of the Douglas Coalfield and Muirkirk Syncline is reviewed. The prolonged basal overlap of the upper Brigantian on to an upland area is seen to have been complicated by both gradual and intermittent tectonic activity. Sequences have thus been affected by a number of disconformities of varying extent and magnitude. A new correlation between Ayrshire and the Paisley district is proposed. The Dockra, Broadstone and Upper and Lower Old Mill Limestones of Ayrshire correlate respectively with the Hurlet, Blackbyre, Hollybush and Dykebar Limestones of Paisley. The major complication is associated with the supra-Dockra (Hurlet) disconformity which caused the Dockra Limestone to be exhumed over a wide area in Ayrshire. In the subsequent overlap of this surface the Blackhall Limestone transgression failed to reach North Ayrshire. The Hosie Limestones A–D of Ayrshire correlate with the Main to Top Hosie Limestones of Paisley. The disconformity at the Hosie Fireclay (Lillie's Shale Coal) position has caused the local erosion of Hosie Limestone B (Mid Hosie) and perhaps also of Hosie Limestone A (Main Hosie).

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The base of the Lower Limestone Group (Viséan) in North Ayrshire

Wilson

1979

SJG

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Synopsis A critical review is made of the evidence for correlating the Lower Carboniferous marine limestones of the upper Calciferous Sandstone Measures and Lower Limestone Group of the Paisley area with those of North Ayrshire. Of the three different schemes of correlation made in the past, one is supported by recently acquired palaeontological information from IGS boreholes. The main conclusion reached is that the Hurlet and Blackhall limestones of the Paisley area are respectively equivalent to the Broadstone and Dockra limestones of Ayrshire so that the base of the Lower Limestone Group should be drawn at the base of the Broadstone Limestone.

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XVI. The Hurlet Sequence in North Ayrshire

Cited by 5 publications

References 0 publications

XXIII. The Hurlet Sequence in North Lanarkshire

XXIII. The Hurlet Sequence in North Lanarkshire

The Upper Brigantian (Lower Carboniferous) of Central Strathclyde

The base of the Lower Limestone Group (Viséan) in North Ayrshire

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