|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| Journal of the Geological Society |  |
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
Article |
British Geological Survey, Murchison House, West Mains Road, Edinburgh EH9 3LA, UK
Thrust imbrication of Ordovician and Silurian submarine fan sequences overlapping pelagic deposits in the Southern Uplands has been interpreted in terms of an accretionary prism formed above a NW-directed subduction zone. Structural features invoked to support accretion are not definitive and could be explained in terms of a thin-skinned thrusting model. New palaeocurrent and compositional evidence from Llandeilo to mid-Llandovery age turbidites in the northern part of the Southern Uplands proves interdigitation of sediments with strongly contrasting petrography. Turbidites derived from the south contain significant quantities of fresh andesitic detritus whereas those from the north form more mature quartz-rich formations. This implies a back-arc situation; the turbidites being deposited in a basin with a relatively mature continental landmass to the north and a rifted continental fragment containing an active volcanic arc to the south. Oblique collision of the opposing continental margins of the Iapetus Ocean during the Llandovery caused the cessation of subduction. Underthrusting of the southern margin initiated a SE-propagating thrust stack which deformed the back-arc basin sequence and may eventually have ramped over the eroded and faulted remains of the volcanic arc.
A southward-migrating foreland basin formed ahead of the rising thrust stack and is now represented by the late Llandovery Hawick Group and Wenlock sequences. Mid- to end-Silurian sinistral strike-slip resulted from oblique collision and produced a transpressional regime during which reactivation of deep-seated structures allowed the intrusion of lamprophyre dykes and granites.
This article has been cited by other articles:
|
|
 |
|
  E. R. Phillips, R. A. Smith, P. Stone, V. Pashley, and M. Horstwood Zircon age constraints on the provenance of Llandovery to Wenlock sandstones from the Midland Valley terrane of the Scottish Caledonides Scottish Journal of Geology, October 1, 2009; 45(2): 131 - 146. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J.C. Neilson, B.P. Kokelaar, and Q.G. Crowley Timing, relations and cause of plutonic and volcanic activity of the Siluro-Devonian post-collision magmatic episode in the Grampian Terrane, Scotland Journal of the Geological Society, May 1, 2009; 166(3): 545 - 561. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. W.F. Waldron, J. D. Floyd, A. Simonetti, and L. M. Heaman Ancient Laurentian detrital zircon in the closing Iapetus Ocean, Southern Uplands terrane, Scotland Geology, July 1, 2008; 36(7): 527 - 530. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. G. Leslie, M. Smith, and N.J. Soper Laurentian margin evolution and the Caledonian orogeny--A template for Scotland and East Greenland Geological Society of America Memoirs, January 1, 2008; 202(0): 307 - 343. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. D. A. PIPER, N. J. McARDLE, and Y. ALMASKERI Palaeomagnetic study of the Cairnsmoor of Fleet Granite and Criffel-Dalbeattie granodiorite contact aureoles: Caledonian tectonics of the Southern Uplands of Scotland and Devonian palaeogeography Geological Magazine, September 1, 2007; 144(5): 811 - 835. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Stone, N. Breward, R. J. Merriman, and R. P. Barnes The interpretation and application of regional geochemistry: lessons from the Paratectonic Caledonides Scottish Journal of Geology, April 1, 2006; 42(1): 65 - 76. [Abstract] [PDF]
|
|
|
|
|
|
P. Stone, P. Stone, and R.J. Merriman Basin thermal history favours an accretionary origin for the Southern Uplands terrane, Scottish Caledonides Journal of the Geological Society, September 1, 2004; 161(5): 829 - 836. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. T. Needham and D. T. NEEDHAM Deformation in Moffat Shale detachment zones in the western part of the Scottish Southern Uplands Geological Magazine, July 1, 2004; 141(4): 441 - 453. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. R. Power, M. R. Power, D. Pirrie, J. Jedwab, and C. J. Stanley Platinum-group element mineralization in an As-rich magmatic sulphide system, Talnotry, southwest Scotland Mineralogical Magazine, April 1, 2004; 68(2): 395 - 411. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E.R. Phillips, J.A. Evans, P. Stone, M.S.A. Horstwood, J.D. Floyd, R.A. Smith, M.C. Akhurst, and H.F. Barron Detrital Avalonian zircons in the Laurentian Southern Uplands terrane, Scotland Geology, July 1, 2003; 31(7): 625 - 628. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. W. Williams, M. Williams, J. Zalasiewicz, A. W. A. Rushton, D. K. Loydell, and R. P. Barnes A new, stratigraphically significant Torquigraptus species (Silurian graptolite) from the Southern Uplands Terrane Scottish Journal of Geology, June 1, 2003; 39(1): 17 - 28. [Abstract] [PDF]
|
|
|
|
|
|
P. Stone, N. Breward, and R. J. Merriman Mineralogical controls on metal distribution in stream sediment derived from the Caledonides of the Scottish Southern Uplands and English Lake District Mineralogical Magazine, April 1, 2003; 67(2): 325 - 338. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. A. Armstrong, H. A. Armstrong, J. D. Floyd, L. Tingqing, and H. F. Barron Conodont biostratigraphy of the Crawford Group, Southern Uplands, Scotland Scottish Journal of Geology, December 1, 2002; 38(2): 69 - 82. [Abstract] [PDF]
|
|
|
|
|
|
R. E. Holdsworth, R. E. HOLDSWORTH, E. TAVARNELLI, and P. CLEGG The nature and regional significance of structures in the Gala Group of the Southern Uplands terrane, Berwickshire coast, southeastern Scotland Geological Magazine, November 1, 2002; 139(6): 707 - 717. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. E. Holdsworth, R.E. Holdsworth, E. Tavarnelli, P. Clegg, R.V.L. Pinheiro, R.R. Jones, and K.J.W. McCaffrey Domainal deformation patterns and strain partitioning during transpression: an example from the Southern Uplands terrane, Scotland Journal of the Geological Society, July 1, 2002; 159(4): 401 - 415. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 References Geological Society, London, Memoirs, January 1, 2002; 25(1): 297 - 319. [PDF]
|
|
|
|
|
|
H. A. Armstrong, H. A. ARMSTRONG, and A. W. OWEN Terrane evolution of the paratectonic Caledonides of northern Britain Journal of the Geological Society, May 1, 2001; 158(3): 475 - 486. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. J. Chapman, R. J. Chapman, R. C. Leake, and J. D. Floyd Regional variation in gold mineralization in the vicinity of the Glengaber Burn, Scottish Borders Scottish Journal of Geology, November 1, 2000; 36(2): 165 - 176. [Abstract] [PDF]
|
|
|
|
|
|
P. Stone, J. A. Plant, J. R. Mendum, and P. M. Green A regional geochemical assessment of some terrane relationships in the British Caledonides Scottish Journal of Geology, November 1, 1999; 35(2): 145 - 156. [Abstract] [PDF]
|
|
|
|
|
|
J. D. Floyd and E. R. Phillips Xenoliths of Southern Uplands 'basement?' in a lamprophyre dyke, Central Belt, Glenluce, SW Scotland Scottish Journal of Geology, June 1, 1999; 35(1): 57 - 62. [Abstract] [PDF]
|
|
|
|
|
|
H. A. ARMSTRONG, A. W. OWEN, and J. D. FLOYD Rare earth geochemistry of Arenig cherts from the Ballantrae Ophiolite and Leadhills Imbricate Zone, southern Scotland: implications for origin and significance to the Caledonian Orogeny Journal of the Geological Society, June 1, 1999; 156(3): 549 - 560. [Abstract] [PDF]
|
|
|
|
|
|
A. W. OWEN, H. A. ARMSTRONG, and J. D. FLOYD Rare earth element geochemistry of upper Ordovician cherts from the Southern Uplands of Scotland Journal of the Geological Society, February 1, 1999; 156(1): 191 - 204. [Abstract] [PDF]
|
|
|
|
 |
|
 R. P. Barnes, G. M. Power, and D. C. Cooper The definition of sandstone-bearing formations in the Isle of Man and correlation with adjacent areas -- evidence from sandstone chemistry Geological Society, London, Special Publications, January 1, 1999; 160(1): 139 - 154. [Abstract] [PDF]
|
|
|
|
|
|
R. P. Barnes and P. Stone Trans-Iapetus contrasts in the geological development of southern Scotland (Laurentia) and the Lakesman Terrane (Avalonia) Geological Society, London, Special Publications, January 1, 1999; 160(1): 307 - 323. [Abstract] [PDF]
|
|
|
|
|
|
P. Stone, A. H. Cooper, and J. A. Evans The Skiddaw Group (English Lake District) reviewed: early Palaeozoic sedimentation and tectonism at the northern margin of Avalonia Geological Society, London, Special Publications, January 1, 1999; 160(1): 325 - 336. [Abstract] [PDF]
|
|
|
|
|
|
J. A. Plant, P. Stone, and J. R. Mendum Regional geochemistry, terrane analysis and metallogeny in the British Caledonides Geological Society, London, Special Publications, January 1, 1999; 164(1): 109 - 125. [Abstract] [PDF]
|
|
|
|
|
|
H. A. Armstrong, H. A. Armstrong, A. W. A. Rushton, A. W. Owen, and J. D. Floyd Biostratigraphy of the Currarie Formation on the northwestern edge of the Southern Uplands: implications for the cessation of basic volcanism Scottish Journal of Geology, November 1, 1998; 34(2): 119 - 125. [Abstract] [PDF]
|
|
|
|
|
|
T. Danelian, T. Danelian, and E. N. K. Clarkson Ordovician radiolaria from bedded cherts of the Southern Uplands Scottish Journal of Geology, November 1, 1998; 34(2): 133 - 137. [Abstract] [PDF]
|
|
|
|
|
|
Y. OGAWA Tectonostratigraphy of the Glen App area, Southern Uplands, Scotland: anatomy of an Ordovician accretionary complex Journal of the Geological Society, August 1, 1998; 155(4): 651 - 662. [Abstract] [PDF]
|
|
|
|
|
|
A. R. HUTCHISON and G. J. H. OLIVER Garnet provenance studies, juxtaposition of Laurentian marginal terranes and timing of the Grampian Orogeny in Scotland Journal of the Geological Society, June 1, 1998; 155(3): 541 - 550. [Abstract] [PDF]
|
|
|
|
|
|
C. R. Van Staal, J. F. Dewey, C. M. Niocaill, and W. S. McKerrow The Cambrian-Silurian tectonic evolution of the northern Appalachians and British Caledonides: history of a complex, west and southwest Pacific-type segment of Iapetus Geological Society, London, Special Publications, January 1, 1998; 143(1): 197 - 242. [Abstract] [PDF]
|
|
|
|
|
|
P. STONE, G. S. KIMBELL, and P. J. HENNEY Basement control on the location of strike-slip shear in the Southern Uplands of Scotland Journal of the Geological Society, February 1, 1997; 154(1): 141 - 144. [Abstract] [PDF]
|
|
|
|
|
|
A. W. Owen, A. W. Owen, D. A. T. Harper, and E. N. K. Clarkson The trilobites and brachiopods of the Wrae Limestone, an Ordovician limestone conglomerate in the Southern Uplands Scottish Journal of Geology, November 1, 1996; 32(2): 133 - 149. [Abstract] [PDF]
|
|
|
|
|
|
P. J. TRELOAR, M. G. PETTERSON, M. Q. JAN, and M. A. SULLIVAN A re-evaluation of the stratigraphy and evolution of the Kohistan arc sequence, Pakistan Himalaya: implications for magmatic and tectonic arc-building processes Journal of the Geological Society, October 1, 1996; 153(5): 681 - 693. [Abstract] [PDF]
|
|
|
|
|
|
T. B. ANDERSON and G. J. H. OLIVER Xenoliths of Iapetus Suture mylonites in County Down lamprophyres, Northern Ireland Journal of the Geological Society, June 1, 1996; 153(3): 403 - 407. [Abstract] [PDF]
|
|
|
|
|
|
W. D. McCaffrey and B. C. Kneller Silurian turbidite provenance on the northern Avalonian margin Journal of the Geological Society, June 1, 1996; 153(3): 437 - 450. [Abstract] [PDF]
|
|
|
|
|
|
T. M. Williams, P. J. Henney, P. Stone, and B. C. Lintern Rare earth element geochemistry of Lower Palaeozoic turbidites in the British trans-Iapetus zone: provenance patterns and basin evolution Scottish Journal of Geology, May 1, 1996; 32(1): 1 - 8. [Abstract] [PDF]
|
|
|
|
|
|
H. A. ARMSTRONG, A. W. OWEN, C. T. SCRUTTON, E. N. K. CLARKSON, and C. M. TAYLOR Evolution of the Northern Belt, Southern Uplands: implications for the Southern Uplands controversy Journal of the Geological Society, April 1, 1996; 153(2): 197 - 205. [Abstract] [PDF]
|
|
|
|
|
|
E. R. Phillips, R. P. Barnes, M. P. Boland, N. J. Fortey, and A. A. McMillan The Moniaive Shear Zone: a major zone of sinistral strike-slip deformation in the Southern Uplands of Scotland Scottish Journal of Geology, November 1, 1995; 31(2): 139 - 149. [Abstract] [PDF]
|
|
|
|
|
|
R. B. Pearce and R. B. Pearce The geochemistry of Llandovery and Wenlock age K-bentonites in the Southern Uplands Scottish Journal of Geology, May 1, 1995; 31(1): 23 - 28. [Abstract] [PDF]
|
|
|
|
|
|
B. J. Bluck W. Q. Kennedy, the Great Glen Fault and strike-slip motion Geological Society, London, Memoirs, January 1, 1995; 16(1): 57 - 65. [Abstract] [PDF]
|
|
|
|
|
|
Discussion on the structure of the western part of the Southern Uplands of Scotland Journal of the Geological Society, August 1, 1994; 151(4): 732 - 734. [Abstract] [PDF]
|
|
|
|
|
|
P. Stone, P. M. Green, B. C. Lintern, P. R. Simpson, and J. A. Plant Regional geochemical variation across the Iapetus Suture zone: tectonic implications Scottish Journal of Geology, November 1, 1993; 29(2): 113 - 121. [Abstract] [PDF]
|
|
|
|
|
|
D.T. NEEDHAM The structure of the western part of the Southern Uplands of Scotland Journal of the Geological Society, April 1, 1993; 150(2): 341 - 354. [Abstract] [PDF]
|
|
|
|
|
|
D. M. WILLIAMS, P. D. O'CONNOR, and J. MENUGE Silurian turbidite provenance and the closure of Iapetus Journal of the Geological Society, June 1, 1992; 149(3): 349 - 357. [Abstract] [PDF]
|
|
|
|
|
|
A. W. Owen and E. N. K. Clarkson Trilobites from Kilbucho and Wallace's Cast and the location of the Northern Belt of the Southern Uplands during the late Ordovician Scottish Journal of Geology, May 1, 1992; 28(1): 3 - 17. [Abstract] [PDF]
|
|
|
|
|
|
G. S. Kimbell and P. Stone Geophysical evidence for a concealed Caledonian intrusive body at Sandhead, Wigtownshire Scottish Journal of Geology, May 1, 1992; 28(1): 19 - 25. [Abstract] [PDF]
|
|
|
|
|
|
A. P. M. VAUGHAN and J. D. JOHNSTON Structural constraints on closure geometry across the Iapetus suture in eastern Ireland Journal of the Geological Society, February 1, 1992; 149(1): 65 - 74. [Abstract] [PDF]
|
|
|
|
|
|
R. E. Bevins, B. J. Bluck, P. J. Brenchley, R. A. Fortey, C. P. Hughes, J. K. Ingham, and A. W. A. Rushton Ordovician Geological Society, London, Memoirs, January 1, 1992; 13(1): 19 - 36. [Abstract] [PDF]
|
|
|
|
|
|
B. J. Bluck, W. Gibbons, and J. K. Ingham Terranes Geological Society, London, Memoirs, January 1, 1992; 13(1): 1 - 4. [Abstract] [PDF]
|
|
|
|
|
|
M. G. Bassett, B. J. Bluck, R. Cave, C. H. Holland, and J. D. Lawson Silurian Geological Society, London, Memoirs, January 1, 1992; 13(1): 17 - 56. [Abstract] [PDF]
|
|
|
|
|
|
A. W. A. Rushton and P. Stone Terrigenous input to the Moffat Shale sequence, Southern Uplands Scottish Journal of Geology, December 1, 1991; 27(2): 167 - 169. [Abstract] [PDF]
|
|
|
|
|
|
W. D. HUFF, T. B. ANDERSON, C. C. RUNDLE, and G. S. ODIN Chemostratigraphy, K-Ar ages and illitization of Silurian K-bentonites from the Central Belt of the Southern Uplands-Down-Longford terrane, British Isles Journal of the Geological Society, October 1, 1991; 148(5): 861 - 868. [Abstract] [PDF]
|
|
|
|
|
|
S. P. TODD, F. C. MURPHY, and P. S. KENNAN On the trace of the Iapetus suture in Ireland and Britain Journal of the Geological Society, October 1, 1991; 148(5): 869 - 880. [Abstract] [PDF]
|
|
|
|
 |
|
 M. A. E. Browne An introduction to the geology of central Scotland Geological Society, London, Engineering Geology Special Publications, January 1, 1991; 7(1): 63 - 70. [Abstract] [PDF]
|
|
|
|
|
|
J. A. Evans, P. Stone, and J. D. Floyd Isotopic characteristics of Ordovician greywacke provenance in the Southern Uplands of Scotland Geological Society, London, Special Publications, January 1, 1991; 57(1): 161 - 172. [Abstract] [PDF]
|
|
|
|
|
|
Discussion on detrital mineral ages from the Southern Uplands using 40Ar-39Ar laser probe Journal of the Geological Society, October 1, 1990; 147(5): 882 - 884. [Abstract] [PDF]
|
|
|
|
|
|
H. A. Armstrong, E. N. K. Clarkson, and A. W. Owen A new Lower Ordovician conodont faunule from the Northern Belt of the Southern Uplands Scottish Journal of Geology, June 1, 1990; 26(1): 47 - 52. [Abstract] [PDF]
|
|
|
|
|
|
R. P. BARNES, B. C. LINTERN, and P. STONE Short Paper: Timing and regional implications of deformation in the Southern Uplands of Scotland Journal of the Geological Society, December 1, 1989; 146(6): 905 - 908. [Abstract] [PDF]
|
|
|
|
|
|
A. H. G. MITCHELL Short Paper: Arc reversal in the Scottish Southern Uplands? Journal of the Geological Society, October 1, 1989; 146(5): 736 - 737. [Abstract] [PDF]
|
|
|
|
|
|
M. T. STYLES, P. STONE, and J. D. FLOYD Short Paper: Arc detritus in the Southern Uplands: mineralogical characterization of a 'missing' terrane Journal of the Geological Society, June 1, 1989; 146(3): 397 - 400. [Abstract] [PDF]
|
|
|
|
|
|
S. KELLEY and B. J. BLUCK Short Paper: Detrital mineral ages from the Southern Uplands using 40Ar-39Ar laser probe Journal of the Geological Society, June 1, 1989; 146(3): 401 - 403. [Abstract] [PDF]
|
|
|
|
|
|
J. D. FLOYD and A. TRENCH Magnetic susceptibility contrasts in Ordovician greywackes of the Southern Uplands of Scotland Journal of the Geological Society, February 1, 1989; 146(1): 77 - 83. [Abstract] [PDF]
|
|
|
|
|
|
M. F. THIRLWALL Geochronology of Late Caledonian magmatism in northern Britain Journal of the Geological Society, December 1, 1988; 145(6): 951 - 967. [Abstract] [PDF]
|
|
|
|
 |
|
 R. P. Barnes, B. C. Lintern, and P. Stone Soper, N. J., Webb, B. C. and Woodcock, N. H. 1987: Late Caledonian (Acadian) transpression in north-west England: timing, geometry and geotectonic significance Proceedings of the Yorkshire Geological Society, December 1, 1988; 47(2): 177 - 178. [Abstract] [PDF]
|
|
|
|
|
|
D. M. Williams, H. A. Armstrong, and D. A. T. Harper The age of the South Connemara Group, Ireland, and its relationship to the Southern Uplands Zone of Scotland and Ireland Scottish Journal of Geology, March 1, 1988; 24(3): 279 - 287. [Abstract] [PDF]
|
|
|
|
|
|
C. ELDERS The provenance of granite boulders in conglomerates of the Northern and Central Belts of the Southern Uplands of Scotland Journal of the Geological Society, December 1, 1987; 144(6): 853 - 863. [Abstract] [PDF]
|
|
|
|
|
|
J. K. LEGGETT The Southern Uplands as an accretionary prism: the importance of analogues in reconstructing palaeogeography Journal of the Geological Society, October 1, 1987; 144(5): 737 - 751. [Abstract] [PDF]
|
|
|
|
|
|
D. H. W. HUTTON and F. C. MURPHY The Silurian of the Southern Uplands and Ireland as a successor basin to the end-Ordovician closure of Iapetus Journal of the Geological Society, October 1, 1987; 144(5): 765 - 772. [Abstract] [PDF]
|
|
|
|
|
|
J. H. MORRIS The Northern Belt of the Longford-Down Inlier, Ireland and Southern Uplands, Scotland: an Ordovician back-arc basin Journal of the Geological Society, October 1, 1987; 144(5): 773 - 786. [Abstract] [PDF]
|
|
|
|
|
|
G. KELLING, P. DAVIES, and J. HOLROYD Style, scale and significance of sand bodies in the Northern and Central Belts, southwest Southern Uplands Journal of the Geological Society, October 1, 1987; 144(5): 787 - 805. [Abstract] [PDF]
|
|
|
|
|
|
A. E. S. KEMP Tectonic development of the Southern Belt of the Southern Uplands accretionary complex Journal of the Geological Society, October 1, 1987; 144(5): 827 - 838. [Abstract] [PDF]
|
|
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
