Lamplugh, G.W. 1903. The geology of the Isle of Man. London: HMSO. Memoirs of the Geological Survey United Kingdom. Grid references added 2025. They should be regarded as approximate.

Appendix 3 Details of deep borings

No. 1 Boring: Point of Ayre (See p. 289)

Details published by Prof. W. Boyd Dawkins in Trans. Manch. Geol. Soc., vol. xxii., p. 600, and by J. Todd in Yn Lioar Manninagh, vol. iii., p. 71.)

Formation Engineer's record Thickness Depth
Ft. in. Ft. in.
[Raised Beach] Shingle 23 0
[Glacial] Sand and shingle 70 0
Running sand 6 0
Clay 3 0
Sand and gravel 2 0
Clay 6 0
Hard sand 9 0
Clay 8 0
Hard sandy clay 20 0
Clay 3 0
Sand 4 0
Clay 4 0
Sand

Soft sandy clay

 8 0

2 0
Hard brown clay 10 0
Gravel 2 0
Sandy boulder clay 4 0
Sand 3 0
Sand with stones 6 0
Hard sand 6 0
Silt 17 0
Sand 2 0
Hard sand 10 0
Sand 69 0
Gravel 1 0 298 0
[Triassic:Saliferous Marls] Mottled brown and grey marl 54 0
Mottled brown and grey marl with gypsum 101 0
Light blue marlstone 3 2
Brown and blue marl 44 9 500 11
Light blue marlstone with salt 11 0
Brown and grey marls with salt 19 9
Brown marl with veins of gypsum 1 6
Light blue marlstone 3 9
Brown marl with veins of gypsum 1 0
Brown marl and blue marlstone 26 11
Marl with salt 0 10
Blue marlstone 1 6
Brown marl 3 2 570 4
Brown marl, with blue marlstone containing veins of gypsum and salt 45 1 615 5
Brine run 2 6
Blue marlstone 8 1
Grey marlstone with marl 9 2
Salt 20 0
Mixed salt 0 8
Salt 3 4
Grey marlstone with salt 4 0
Salt 9 6
Brown marl 7.4 680 0
1 Descriptions, throughout, in square brackets are not contained in the original records.

No. 2 Boring: On the Ayre at Blue Point, opposite Ballawhane (See p. 282.)

[NX 39284 02429] (Details published by Prof. W. Boyd Dawkins in Trans. Manch. Geol. Soc., vol. xxii.2 p. 598, and vol. xxiii., p. 149; the subjoined account is from information supplied to the Survey by Messrs. Craine Bros.)

Formation Engineer's record Thickness Depth
Ft. in. Ft. in.
[RaisedBeach] Sand and shingle 16 0
[Glacial] Muddy sand 29 0
Sand containing small pieces of coal 41 0
Sand 20 0
Clay containing small pieces of coal 15 0
Silt 50 0 171 0
[Triassic: St. Bees Sandstone] Red sandstone 11 6
Red sandstone with beds of marl 2 3
Red sandstone 20 0
Grey fakes [see footnote, p. 587] 0 8
Red sandstone with a grey band 14 6
Variegated do. 2 0
Red sandstone with grey bands 16 0
Red sandstone with beds of marl 1 9
Reddish brown marl 0 9
Reddish grey sandstone 1 2
Variegated sandstone 0 7
Red sandstone 11 9
Brown marl with bands of sandstone 3 3
Red sandstone striated with shale 6 9
Red sandstone with grey bands and shaly partings 62 9
Brown shale striated with red sandstone 4 6
Alternations of red sandstone with thin grey bands and shale 54 5
Reddish grey sandstone with tracesof coal in the bedding 1 0
Red and brown sandstone with thin grey bands and shale 110 11
Brown fakes [see footnote, p. 587] 30 0
Reddish grey sandstone 3 3 530 9
Brown fakes 11 3 542 0
[Lower Marls] Red sandy shale 24 0
Red sandy shale slightly speckled with coal 9 4 575 4
[Fault]
[Lower Carboniferous] Brown fakey limestone resembling stone-marl 1 0
Light grey limestone tinged with yellow 7 2
Blue calcareous fakes 2 0
Reddish limestone 3 0
Purple sandstone striated with soft brown limestone 14 0
Dark purple sandy shale striated with soft brown limestone 10 6
Hard brown limestone with spar 0 6
Dark purple sandy shale 17 8
Conglomerate with pebble bed [see p. 284] 3 9
Purple sandy shale 22 1
Grey stone' 0 3
Dark sandy shale 5 9
Dark grey calcareous stone 2 9
Dark shale 6 10
Light stone; metal 7 10
Light stone with ironstone beds 6 2
Grey stone mixed with metal 5 8
Dark red dappled calcareous stone 6 3
Grey calcareous stone 0 6
Dark red stone 1 0
Limestone 7 4
Grey limestone 8 6
Limestone 2 6 718 4

No. 3 Boring: on the raised beach at Lhen Mooar (p. 281)

(Details published by Prof. W. Boyd Dawkins in Trans. Manch. Geol. Soc., vol. xxii., p. 598.) [NX 38280 01885]

Formation Engineer's record Thickness Depth
Ft. in. Ft. in.
[Raised Beach] Sand and shingle 12 0
[Glacial] Silt 6 0
[Glacial] Grey sand 48 0
[Glacial] Brown sand 26 0
[Glacial] Sand and shingle 18 0
[Glacial] Shingle 8 0
[Glacial] Grey sand 9 0
[Glacial] Shingle 40 0
[Glacial] Silt 0 6 167 6
Carboniferous Limestone 66 0 233 6

<ref>The term "stone" from this place downwards in most cases refers to limestone.</ref>

No. 4 Boring: On the ayre opposite Knock-R-Dooney. (p. 284.)

(Details published by J. Todd in Yn Lioar Manninagh, vol. iii., p. 72.) [NX 40164 03040]

Formation Engineer's record Thickness Depth
Ft. in. Ft. in.
[Raised Beach] Sand with stones 16 0
Sand and gravel 20 0
Soft sandy clay with fragments of coal 40 0
Sandy clay 25 0
[Glacial] Sand with small pieces of coal 15 0
Sand 34 0
Silt 13 0
Gravel and clay 10 0 173 0
[Triassic St. Bees Sandstone] Red sandstone 8 8
Red and grey sandstone 14 11
Red sandstone 23 3
Red and grey sandstone 7 8
Red sandstone 20 6
Red and grey sandstone 14 11
Red sandstone 22 2
Red and grey sandstone 20 6
Red sandstone 6 3
Red and grey sandstone 1 10
: Red sandstone 6 9
Red and grey sandstone 24 10
Red sandstone 13 7
Brown shale and red sandstone 1 10
Red and grey sandstone 3 1
Red sandstone 10 9
Red and grey sandstone 12 0
Red sandstone 13 8
Red and grey sandstone 12 4
Red sandstone 36 4
Red sandstone, and shale 16 9
Red sandstone 15 5
Red sandstone and shale 26 2
Red sandstone 1 6 508 8
[Permian ?:Lower Marls with Sandstone] Brown shale 10 0
Red sandstone 4 7
Brown shale 7 8
Red sandstone 12 0
Brown dsandstone 7 0
Shale 26 0
Red sandstone 1 6
Shale 11 9
Sandy shale, variegated 0 6
Red sandstone, striated with shale 7 0
Sandstone with traces of coal 1 4 607 0
[Permian: Brockram Series] Brown sandy shale containing small 29 4
Coarse red sandstone 3 6
Dark red stone 4 0
Dark red sandstone 3 11
Dark red stone 3 0 650 9
Sandy shale 4 9
Dark red stone (calcareous) 4 4
Conglomerate 2 3 662 1
[Lower Carboniferous] Dark red stone; brecciated 2 6
Purple sandstone with beds of brown and grey shale 13 5
Freestone 12 0
Purple sandstone 28 3
Purple shaly sandstone 6 0
Variegated sandy shale with iron stone nodules 6 6
Gypsum and shale 0 6
Variegated sandy shale with iron stone nodules 3 6
Dark shale 1 6
Variegated sandy shale with iron stone nodules 4 6
Dark purple shale with ironstone nodules 18 11
Dark purple shale with ironstone nodules and beds of fireclay 2 0
Variegated sandy shale with iron stone nodules 23 9
Dark shale 7 0
Shaly sandstone 2 2
Dark shale 4 0
Shaly sandstone 7 0
Dark shale with pyrites 4 6
Dark shale 5 0
Ironstone nodule 0 3
Dark shale 7 0
Ironstone nodule 0 3
Dark shale 3 0
Ironstone nodule 0 4
Dark shale 7 8
Dark sandy shale 1 10
Shaly sandstone 0 8
Dark shale with ironstone nodules 31 5
Black fireclay 0 6
Black shale with beds and balls of ironstone 5 9
Dark grey shaly sandstone 22 2
Grey shaly sandstone with ironstone nodules 14 6
Dark shale with ironstone nodules 20 9
Dark shaly sandstone 2 0
Dark shale with iron pyrites 4 6
Dark grey shaly sandstone 0 6
Dark shale with pyrites 6 3
Shaly sandstone 1 0
Dark shale 2 2
Grey limestone 3 0
Dark shaly limestone 0 10
Dark shale 1 6
Grey limestone 6 6
Hard grey stone 2 6 961 11

No. 5 Boring: On the Ayre opposite Ballagenney (See p. 286.)

(Details abridged from the borer's journal, communicated by Messrs Craine Bros.)

Formation Engineer's record Thickness Depth
Ft. in. Ft. in
[Raised Beach] Sand and stones 15 0
[Glacial] Gravel 27 0
Sand 36 0
Clay 34 0
Coarse sand and gravel with clay 26 0
Sand 73 8
Gravel 0 8 212 4
[Triassic St. Bees Sandstone and Lower marls = Passage Beds.] Red sandstone 13 6
Red and grey sandstone 0 6
Red sandstone 5 9
Red sandstone with grey bands 20 3
Red sandstone striated with shale 1 0
Red sandstone with grey bands and shale partings 72 6
Sandstone with grey bands 142 2
Red sandstone with shale partings 1 0
do. with grey bands 111 11
Red shaly sandstone 1 4
Red sandstone with grey bands 127 6
Brown sandy shale 0 4
Red sandstone 0 6
Red and grey sandstone with shale partings 1 6
Red and grey sandstone 35 5
Sandstone plies [see p. 587] 0 6
Red sandstone with grey bands 33 6
Brown sandy shale 0 5
Red sandstone with grey bands 40 8
Red sandstone striated with brown shale 4 3
Red sandstone with grey bands 8 10
Brown shale 0 3
Red sandstone with grey bands 22 11
Red shaly sandstone with grey bands 2 0
Red sandstone with grey bands 43 3
Brown shale 0 4
Red sandstone with grey band 11 0
Red shaly sandstone 8 4
Red sandstone 3 0
Red sandstone striated with shale 3 7
Red sandstone 2 6
Red sandstone striated with shale 0 6
Red shaly sandstone 1 3
Red sandstone striated with shale 20 0
Red sandstone 1 9
Red sandstone and shale 47 9 1,004 1
[Permian Brockram Series] Brown sandy shale with beds of grit 14 0
Conglomerate 0 6
Brown sandy shale 3 0
Brockram 19 6 1,041 1
Lower Carboniferous] Purple sandstone 7 0
Shaly purple sandstone 2 6
Purple sandstone 6 5
Shaly purple sandstone 2 4
Darker purple sandstone 13 9
Variegated sandy shale 4 6
Dark sandstone; shells 7 3
Variegated sandstone 1 6
Purple and grey sandstone [plant-remains] 9 0
Purple and grey shaly sandstone 4 0
Purple and grey sandstone [plant-remains] 14 9
Purple and grey sandstone 9 3
Sandy shale 0 4
Grey sandstone and shale partings[plant-remains] 19 8
Dark shaly sandstone [casts of shells] 4 9
Grey sandy shale 3 9
Bluish grey shaly sandstone with brown beds [casts of shells] 27 7
Dark sandy shale 4 6
Dark red shale with ironstone nodules 14 0
Soft shale 4 10
Red shale 6 9
Hard sandy shale 6 8
Limestone with beds of shale 4 6
Calcareous sandy shale 3 6
Red sandstone 0 4
Shale 0 2
Limestone 0 9
Calcareous shaly sandstone 6 6
Limestone 4 2
Shaly limestone 2 3
Sandy shale 1 7
Red shale 0 9
Soft coal [no core, but traces of coal in the core-tube] 0 6
Sandy shale 0 6
Shaly sandstone 7 6
Limestone 0 8
Shaly sandstone 2 4
Limestone 2 10
Calcareous shale 6 0
Limestone 5 9
Shaly sandstone with gypsum 10 10
Sandy shale with gypsum 8 8
Shaly sandstone with gypsum 3 4
Shaly sandstone with beds of limestone 4 6 1,300 1

No. 6 Boring: at the Point Of Ayre. (See p. 290.)

(Details supplied by Messrs. Crain Bros.)

Formation Engineer's record Thickness Depth
Ft. in. Ft. in.
[Raised Beach] Shingle 16 0
[Glacial] Gravel 32 0
Sand and gravel 8 0
Sand 12 0
Sand and gravel 37 0
Hard sand 8 0
Clay 27 0
Sandy clay 8 0
Sand 6 0
Sandy clay with stones 10 0
Reddish clay 3 0
Sandy clay 5 0
Sandy clay with stones 10 0
Sandy clay 20 0
Sandy clay with stones 13 0
Silt 5 0
Gravel with shells 1 0
Sand 7 0
Muddy sand with shells 12 0
Reddish sand 36 0
Sand and gravel 2 0
Sand and gravel with pieces of coal 2 0
Gravel 35 0
Coarse gravel with clay 9 0
Reddish sand 24 0
Gravel 6 0
Stone [boulder] 0 8
Gravel and sand with clay 8 4 363 0
Red marl with stones and gypsum 65 0 428 0
[Triassic:Saliferous Marls] Brown marl with gypsum Disturbed marl 72 0
Gypsum mixed with sandy Disturbed marl 2 0
Brown and grey marl with marl. gypsum Disturbed marl 42 0
Brown marl with gypsum 3 0
Brown and grey marl with gypsum 8 0
Grey marlstone with gypsum 13 0
Brown and grey marl with gypsum 5 0
Grey marlstone 2 0
Brown and grey marl 2 0
Grey marlstone 8 0
Brown marl with veins of gypsum 2 6
Brown marl with salt 0 8
Brown marl 4 0
Grey marlstone with beds of gypsum 2 0
Grey marlstone with salt 0 2
Grey marlstone with beds of gypsum 1 0
Brown marl with veins of gypsum 2 11
Brown and grey marl with 'beds and veins of gypsum 6 0 604 3
Salt (1) 12 6
Brown and grey marlstone with salt 3 0
Salt (2) 8 6
Brown and grey marlstone with salt 6 6
Salt (3) 1 6
Brown and grey marlstone with salt 2 3
Salt (4) 1 0 639 6
Brown and grey marlstone with salt 6 0
Salt (5) 0 6
Brown marl with salt 5 6
Salt (6) 4 0
Grey marlstone with salt 0 6
Brown marl 11 6
Salt (7) with about 50 per cent. marl 3 8
Brown marl 7 0
Salt (8) with about 25 per cent. marl 2 0
Brown marl, with about 30 per cent. salt 1 4
Salt (9) 0 6
Brown marl 7 8
Brown marl with salt 2 8
Brown and grey marlstone 6 0
Salt (10) 2 6
Blue marlstone 1 4
Blue marlstone with about 10 per cent. salt 2 10
Salt (11) 16 0 7i 0
Brown marl 1 9
Salt (12) 1 6
Brown and grey marl 4 9
Brown marl with salt 2 0
Salt (13) 0 6
Brown marl 2 0
do. with salt 1 6
Blue marlstone 3 0
do. with salt 0 8
Brown and grey marlstone 9 8
Salt (14) 1 0
Brown and grey marlstone 3 8
Salt (15) 0 10
Salt with about 20 per cent. marl 6 4
Salt 2 10
Salt with about 20 per cent. marl 4 0
Blue marlstone 4 3
Brown and blue marl with salt 9 4
Salt (16) 1 9
Brown and blue marl with about 30 per cent. salt 10 2
Salt (17) 14 0 806 6
Brown and blue marl with salt and veins of gypsum 16 2
Salt (18) with about 50 per cent, marl 2 10
Brown and blue marl with veins of gypsum 4 4
Salt (19) with about 50 per cent. marl 1 9
Brown and blue marl with salt and veins of gypsum 2 4
Salt (20) 1 9
Brown and blue marl with salt, and beds and veins of gypsum 16 6
Salt (21) 5 6 857 8
Brown marl with salt. Breccia 4 6
Soft brown and blue marl with salt and gypsum 13 6
Soft brown sandy marl with gypsum 25 4
Soft brown marly sandstone 1 0
Brown sandy marl 12 4
Soft brown manly sandstone 3 4
Soft brown and grey sandstone 1 6
Blush grey sandstone 1 2 920 4

Journal of a boring in search of coal near Peel, made about the year 1870. (See p. 279.)

(Supplied by Messrs. Crain Bros., from an old record kept by the foreman of the work.)

Formation Engineer's record Thickness Depth
Ft. in. Ft. in.
[Glacial] Running sand 4 0
Sand and gravel 33 0 37 0
[Peel Sandstone] Red sandstone with beds 17 9
[Peel Sandstone] Red sandstone 8 0
[Peel Sandstone] Red sandstone with soft beds 24 6 87 3
[Manx Slate Series] Grey fakes' 1 3
Fireclay 16 3
Faky fireclay 24 0
Grey fakes 7 6
Faky fireclay 21 1
Light grey fakes with grey blaes 13 0
Faky fireclay with spar 4 0
Grey fakes 3 0
Faky fireclay 6 6
Grey fakes 6 3
Fakey fireclay 8 3
Grey fakes 6 0
Faky fireclay 5 3
Grey fakes 5 3
White sandstone, extra hard 6 6
Grey fakes 4 6
Green whinstone [Greenstone dyke ?] 14 0
Green whinstone soft 0 6
Blue whin stone 4 9
Soft parting 0 3
Coarse brown sandstone, hard
Faky fireclay 4 2
Grey fakes 3 4
Faky fireclay 14 6
Dark fireclay 3 6
Dark grey fakes and blaes' 1 6
Dark fireclay with spar 3 6
Light faky fireclay 13 4
Dark faky fireclay 4 9
Blue fireclay and spar 4 11
Light fireclay 2 10
Grey sandstone, extra hard 3 1
Grey fakes and spar 9 0
Grey sandstone, extra hard 2 2
Soft parting 0 4
Grey Engle", extra hard 8 5
Soft parting 0 4
Grey sandstone, extra hard 13 1
Light grey fakes with white spar 11 2
Dark faky fireclay 4 11
Blue fireclay and spar 6 4
Grey fakes 6 5
White spar, extra hard [Quartz vein 7] 6 7
Dark fakes and spar 5 0 381 6

Note.—BLAES = shale. KINDLE =Hard grit. PLIES =thin parting. FAKES = sandy shale.