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Journal Article

Erratum for Cooper et al. , Journal of the Geological Society, London , 168 (4) 837–850.: Age constraints and geochemistry of the Ordovician Tyrone Igneous Complex, Northern Ireland: implications for the Grampian orogeny Available to Purchase

M.R. Cooper, Q.G. Crowley, S.P. Hollis, S.R. Noble, S. Roberts, D. Chew, G. Earls, R. Herrington, R.J. Merriman
Published: 01 September 2011
Journal of the Geological Society (2011) 168 (5): 1229.
DOI: https://doi.org/10.1144/0016-76492010-164Err
... (Ma) column immediately before the ± symbol used in Table 2 . The Publishing House would like to apologise for this mistake; the correct table is shown. Table 2.   Calculated U–Pb zircon ages and additional information for analysed samples; previously published U–Pb geochronology for Tyrone...
View PDF for article title, Erratum for Cooper et al. , Journal of the Geological Society, London , 168 (4) 837–850.: Age constraints and geochemistry of the Ordovician <span class="search-highlight">Tyrone</span> Igneous <span class="search-highlight">Complex</span>, Northern Ireland: implications for the Grampian orogeny
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Journal Article

Age constraints and geochemistry of the Ordovician Tyrone Igneous Complex, Northern Ireland: implications for the Grampian orogeny Available to Purchase

M.R. Cooper, Q.G. Crowley, S.P. Hollis, S.R. Noble, S. Roberts, D. Chew, G. Earls, R. Herrington, R.J. Merriman
Published: 01 July 2011
Journal of the Geological Society (2011) 168 (4): 837–850.
DOI: https://doi.org/10.1144/0016-76492010-164
...M.R. Cooper; Q.G. Crowley; S.P. Hollis; S.R. Noble; S. Roberts; D. Chew; G. Earls; R. Herrington; R.J. Merriman Abstract: The Tyrone Igneous Complex is one of the largest areas of ophiolitic and arc-related rocks exposed along the northern margin of Iapetus within the British and Irish Caledonides...
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View PDF for article title, Age constraints and geochemistry of the Ordovician <span class="search-highlight">Tyrone</span> Igneous <span class="search-highlight">Complex</span>, Northern Ireland: implications for the Grampian orogeny
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Journal Article

Arc–continent collision and the formation of continental crust: a new geochemical and isotopic record from the Ordovician Tyrone Igneous Complex, Ireland Available to Purchase

Amy E. Draut, Peter D. Clift, Jeffrey M. Amato, Jerzy Blusztajn, Hans Schouten
Published: 01 May 2009
Journal of the Geological Society (2009) 166 (3): 485–500.
DOI: https://doi.org/10.1144/0016-76492008-102
... during this stage of the plate-tectonic cycle is evident in several areas of the Ordovician Grampian–Taconic orogen, as we demonstrate in the first detailed geochemical study of the Tyrone Igneous Complex, Ireland. New U–Pb zircon dating yields ages of 493 ± 2 Ma from a primitive mafic intrusion...
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View PDF for article title, Arc–continent collision and the formation of continental crust: a new geochemical and isotopic record from the Ordovician <span class="search-highlight">Tyrone</span> Igneous <span class="search-highlight">Complex</span>, Ireland
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Journal Article

A pyroxene-hornfels from the basic plutonic complex, County Tyrone, Ireland Free

N. S. Angus
Published: 01 May 1970
Geological Magazine (1970) 107 (3): 277–287.
Add to Citation Manager for A pyroxene-hornfels from the basic plutonic <span class="search-highlight">complex</span>, County <span class="search-highlight">Tyrone</span>, Ireland
Book Chapter

The provenance and tectonic history of Dashwoods and the associated Baie Verte Margin during the Ordovician to Silurian Available to Purchase

Author(s)
Alex Zagorevski, Cees Roelof van Staal, Nancy L. Joyce
Book: Supercontinents, Orogenesis and Magmatism
Series: Geological Society, London, Special Publications
Publisher: Geological Society of London
Published: 22 April 2024
DOI: 10.1144/SP542-2023-20
EISBN: 9781786206398
... al. (2012) A266 Lower Dalradian–Moine Arenite at the base of the Highland Border Complex 50 Cawood et al. (2012) 10224 Upper Dalradian–Tyrone Ordovician Derryveeny Formation, South Mayo Trough ( cover ) 44 Riggs et al. (2022) JTP-210 Upper Dalradian–Tyrone Psammitic...
Abstract
View PDF for content titled, The provenance and tectonic history of Dashwoods and the associated Baie Verte Margin during the Ordovician to Silurian
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Add to Citation Manager for The provenance and tectonic history of Dashwoods and the associated Baie Verte Margin during the Ordovician to Silurian

Abstract Dashwoods is a composite peri-Laurentian terrane in Newfoundland and forms the basement to the Early Ordovician to Silurian Notre Dame arc. The southern part of Dashwoods is characterized by paragneiss that is intruded by Early Ordovician to Late Silurian plutons and affected by polyphase Taconic to Salinic deformation and high-grade metamorphism. The crystalline basement of Dashwoods is not exposed and pre-Middle Ordovician paragneiss is investigated herein to constrain the provenance of Dashwoods. SHRIMP U–Pb zircon analysis of the paragneiss yielded metamorphic rims ranging from c. 500 to 395 Ma and abundant detrital grain cores ranging from c. 1853 to 546 Ma. The presence of abundant Tonian dates differentiates Dashwoods from the adjacent Humber Margin in Newfoundland, and Hebridean and Grampian terranes in the British Isles. The detrital provenance of Dashwoods is most similar to the Baie Verte Margin in Newfoundland, and Tyrone Complex and Dalradian Supergroup in Ireland. These data suggest that Dashwoods and the Baie Verte Margin originated near the Rockall promontory and were subsequently emplaced outboard of the Humber Margin by Ordovician to Carboniferous motion along the Baie Verte–Brompton Line.

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Chronology of the Tyrone Igneous Complex with U–Pb age ranges (1σ error bars) of Phanerozoic detrital zircons from the Trainor's Rocks (TR) microconglomerate. TIC, Tyrone Igneous Complex. The mean age of Trainor's Rocks Phanerozoic detrital zircons is similar to the age of Tyrone arc volcanism. Source: U–Pb zircon ages from the Tyrone Igneous Complex from Cooper et al. (2011) and Hollis et al. (2012, 2013a, b, unpublished); graptolite biostratigraphy constraint from Cooper et al. (2008).

Chronology of the Tyrone Igneous Complex with U–Pb age ranges (1 σ err... Available to Purchase

Published: 23 August 2024
Fig. 11. Chronology of the Tyrone Igneous Complex with U–Pb age ranges (1 σ error bars) of Phanerozoic detrital zircons from the Trainor's Rocks (TR) microconglomerate. TIC, Tyrone Igneous Complex. The mean age of Trainor's Rocks Phanerozoic detrital zircons is similar to the age of Tyrone
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(a) Setting of the Tyrone Igneous Complex and other comparable ophiolite and volcanic arc associations in Britain and Ireland. (b) Simplified regional geology of Newfoundland. (c) Early Mesozoic restoration of North Atlantic region and Appalachian–Caledonian orogen. Figure after Cooper et al. (2011).

( a ) Setting of the Tyrone Igneous Complex and other comparable ophiolite ... Available to Purchase

Published: 12 September 2013
Fig. 1. ( a ) Setting of the Tyrone Igneous Complex and other comparable ophiolite and volcanic arc associations in Britain and Ireland. ( b ) Simplified regional geology of Newfoundland. ( c ) Early Mesozoic restoration of North Atlantic region and Appalachian–Caledonian orogen. Figure after
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Geological map of the Tyrone Igneous Complex (after GSNI 1979, 1983, 1995; Cooper et al. 2011; Hollis et al. 2012). (For subdivision of the Tyrone Volcanic Group see Hollis et al. (2012).) Stars refer to localities discussed in the text.

Geological map of the Tyrone Igneous Complex (after GSNI 1979 , 1983 , 1... Available to Purchase

Published: 12 September 2013
Fig. 2. Geological map of the Tyrone Igneous Complex (after GSNI 1979 , 1983 , 1995 ; Cooper et al . 2011 ; Hollis et al . 2012 ). (For subdivision of the Tyrone Volcanic Group see Hollis et al . (2012) .) Stars refer to localities discussed in the text.
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Geological map of the Tyrone Igneous Complex (after Hollis et al. 2012).

Geological map of the Tyrone Igneous Complex (after Hollis et al. 2012 ). Available to Purchase

Published: 24 July 2013
Fig. 2. Geological map of the Tyrone Igneous Complex (after Hollis et al. 2012 ).
Image
(A) Setting of the Tyrone Igneous Complex and other comparable ophiolite and volcanic arc associations in Britain and Ireland (after Cooper et al., 2011). (B) Simplified regional geology of Newfoundland (after van Staal et al., 2007). (C) Early Mesozoic restoration of the North Atlantic region and Appalachian-Caledonian orogen (after Pollock et al., 2009).

(A) Setting of the Tyrone Igneous Complex and other comparable ophiolite an... Available to Purchase

Published: 01 November 2012
Figure 1. (A) Setting of the Tyrone Igneous Complex and other comparable ophiolite and volcanic arc associations in Britain and Ireland (after Cooper et al., 2011 ). (B) Simplified regional geology of Newfoundland (after van Staal et al., 2007 ). (C) Early Mesozoic restoration of the North
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(A) Previous geological map of the Tyrone Igneous Complex (after GSNI, 1979, 1983, 1995; Cooper et al., 2011). Crosses and plus symbols mark sample locations of Draut et al. (2009) and Cooper et al. (2011). Copney Pillow Lava Formation and Rhyolite are divisions within the Tyrone Volcanic Group. (B) New geological map of the Tyrone Volcanic Group.

(A) Previous geological map of the Tyrone Igneous Complex (after GSNI, 197... Available to Purchase

Published: 01 November 2012
Figure 2. (A) Previous geological map of the Tyrone Igneous Complex (after GSNI, 1979 , 1983 , 1995 ; Cooper et al., 2011 ). Crosses and plus symbols mark sample locations of Draut et al. (2009) and Cooper et al. (2011) . Copney Pillow Lava Formation and Rhyolite are divisions within
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Geochemical analyses from the Tyrone Igneous Complex; data from Draut et al. (2009) and Cooper et al. (2011) are also included. Arrows indicate episodes of rifting and a return to more primitive geochemical signatures. BD. Fm—Broughderg formation; Bg. Mb—Beaghbeg member; Bo. Mb—Bonnety Bush member; C. Fm—Creggan formation; MG. Mb—Merchantstown Glebe member; SG. Mb—Streefe Glebe member; T. Mb—Tanderagee member. Units: wt% for major elements; ppm for trace elements.

Geochemical analyses from the Tyrone Igneous Complex; data from Draut et a... Available to Purchase

Published: 01 November 2012
Figure 4. Geochemical analyses from the Tyrone Igneous Complex; data from Draut et al. (2009) and Cooper et al. (2011) are also included. Arrows indicate episodes of rifting and a return to more primitive geochemical signatures. BD. Fm—Broughderg formation; Bg. Mb—Beaghbeg member; Bo. Mb
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Tectonic model for the formation of the Tyrone Igneous Complex during the early Ordovician, illustrating contrasts with the Nafooey–Tourmakedy arc system of western Ireland. (a) Ophiolite exhumation in western Ireland occurs at c. 480 Ma, around the same time as maturation of the Nafooey arc and formation of the Tyrone Plutonic Group. (b) Formation of the Tyrone Volcanic Group occurs between &gt;c. 475 Ma and 470 Ma, synchronous with arc–continent collision in western Ireland and development of the Tourmakeady Group. (c) Subduction polarity reversal in western Ireland occurs prior to c. 464 Ma. In Northern Ireland, arc–continent collision occurs prior to the intrusion of a suite of c. 470–464 Ma continental intrusive rocks. Ages after Draut et al. (2004), Dewey (2005), Chew et al. (2008, 2010) and Cooper et al. (2008). C.B.C, Clew Bay Complex; L.N.A, Lough Nafooey arc; S.M.T, South Mayo Trough; T.P.G, Tyrone Plutonic Group; T.V.G, Tyrone Volcanic Group.

Tectonic model for the formation of the Tyrone Igneous Complex during the e... Available to Purchase

Published: 01 July 2011
Fig. 7. Tectonic model for the formation of the Tyrone Igneous Complex during the early Ordovician, illustrating contrasts with the Nafooey–Tourmakedy arc system of western Ireland. ( a ) Ophiolite exhumation in western Ireland occurs at c . 480 Ma, around the same time as maturation
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(a) Setting of the Tyrone Igneous Complex and other comparable ophiolite and volcanic arc associations in Britain and Ireland (after Hutton et al. 1985; Parnell et al. 2000: Chew et al. 2008). (b) Simplified regional geology of Newfoundland (after van Staal et al. 2007) (c) Early Mesozoic restoration of North Atlantic region and Appalachian–Caledonian orogen (after Pollock et al. 2009).

( a ) Setting of the Tyrone Igneous Complex and other comparable ophiolite ... Available to Purchase

Published: 01 July 2011
Fig. 1. ( a ) Setting of the Tyrone Igneous Complex and other comparable ophiolite and volcanic arc associations in Britain and Ireland (after Hutton et al. 1985 ; Parnell et al. 2000 : Chew et al. 2008 ). ( b ) Simplified regional geology of Newfoundland (after van Staal et al. 2007
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Simplified geological map of the Tyrone Igneous Complex showing locations sampled or discussed in this study (after Geological Survey of Northern Ireland 1979, 1983, 1995). Crosses and plus symbols mark sample locations of Draut et al. (2009) and the new analyses presented here. Copney Pillow Lava Formation and Rhyolite are divisions within the Tyrone Volcanic Group.

Simplified geological map of the Tyrone Igneous Complex showing locations s... Available to Purchase

Published: 01 July 2011
Fig. 2. Simplified geological map of the Tyrone Igneous Complex showing locations sampled or discussed in this study (after Geological Survey of Northern Ireland 1979 , 1983 , 1995 ). Crosses and plus symbols mark sample locations of Draut et al. (2009 ) and the new analyses presented here
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Tectonostratigraphic evolution of the Tyrone Igneous Complex during the Ordovician. Stratigraphy after Cooper &amp; Mitchell (2004), Cooper et al. (2008) and Draut et al. (2009). The standard British Ordovician stages and the Australian graptolite zones are after Sadler et al. (2009). Biostratigraphic and U–Pb zircon ages: 1, Ca1 graptolite age of Cooper et al. (2008); 2, Formil Hill rhyolite of Cooper et al. (2008); 3, Scalp layered gabbro; 4, Laght Hill tonalite; 5, Pomeroy granite; 6, Copney quartz porphyry; 7, Craigbardahessiagh granodiorite; 8, Slieve Gallion granite; 9, Golan Burn tonalite; 10, Cregganconroe quartz-monzodiorite; 11, Craigballyharky tonalite.

Tectonostratigraphic evolution of the Tyrone Igneous Complex during the Ord... Available to Purchase

Published: 01 July 2011
Fig. 3. Tectonostratigraphic evolution of the Tyrone Igneous Complex during the Ordovician. Stratigraphy after Cooper & Mitchell (2004 ), Cooper et al. (2008 ) and Draut et al. (2009 ). The standard British Ordovician stages and the Australian graptolite zones are after Sadler et al
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Geochemical analyses from the Tyrone Igneous Complex; data of Draut et al. (2009) also included. (a) Nb/Y v. Zr/Ti after Winchester &amp; Floyd (1977) modified by Pearce (1996). (b) Th v. Co after Hastie et al. (2007). (c) Zr v. Y after Barrett &amp; MacLean (1999). (d) Th/Yb v. Nb/Yb after Pearce (1983). Calc-Alk, calc-alkaline; E-MORB, enriched mid-ocean ridge basalt; MORB, mid-ocean ridge basalt; OIB, ocean-island basalt, IAT, island arc tholeiite; SHO, shonshonite.

Geochemical analyses from the Tyrone Igneous Complex; data of Draut et al... Available to Purchase

Published: 01 July 2011
Fig. 4. Geochemical analyses from the Tyrone Igneous Complex; data of Draut et al. (2009 ) also included. ( a ) Nb/Y v. Zr/Ti after Winchester & Floyd (1977 ) modified by Pearce (1996 ). ( b ) Th v. Co after Hastie et al. (2007 ). ( c ) Zr v. Y after Barrett & MacLean (1999
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Geological map of the Tyrone Igneous Complex, based on published maps (Institute of Geological Sciences 1978a,b; Geological Survey of Northern Ireland 1995). Sampled localities are indicated in the Tyrone Igneous Complex, with the final five digits of sample numbers (see Table 1 for full sample names and descriptions). The intrusion dated by Hutton et al. (1985) was sampled in the Craigballyharky area near our samples TY07043001-3. The region shown as ’other volcanic rocks' contains poorly exposed rocks mapped by the Geological Survey of Northern Ireland as basalts and basaltic andesites. Inset map shows the Tyrone Igneous Complex in the context of the Caledonide suture zone in the British Isles: major faults (GGF, Great Glen Fault; HBF, Highland Boundary Fault; FCBL, Fairhead–Clew Bay Line; SUP, Southern Uplands Fault) and the Midland Valley Terrane (MVT) of Scotland, as well as Grampian exposures in Ireland (Connemara, South Mayo, Slishwood Division, and Tyrone Igneous Complex). Line A–A′ shows the orientation of the schematic cross-section in Figure 2.

Geological map of the Tyrone Igneous Complex, based on published maps ( Ins... Available to Purchase

Published: 01 May 2009
Fig. 1. Geological map of the Tyrone Igneous Complex, based on published maps ( Institute of Geological Sciences 1978 a , b ; Geological Survey of Northern Ireland 1995 ). Sampled localities are indicated in the Tyrone Igneous Complex, with the final five digits of sample numbers (see Table 1
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Schematic cross-section across the Tyrone Igneous Complex from NW to SE, oriented along the line A–A′ in Figure 1 (after Chew et al. 2008, and Geological Survey of Northern Ireland maps).

Schematic cross-section across the Tyrone Igneous Complex from NW to SE, or... Available to Purchase

Published: 01 May 2009
Fig. 2. Schematic cross-section across the Tyrone Igneous Complex from NW to SE, oriented along the line A–A′ in Figure 1 (after Chew et al. 2008 , and Geological Survey of Northern Ireland maps).
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Plot of silica v. alkali components in all Tyrone Igneous Complex samples, with the division between tholeiitic and alkaline compositions indicated for the mafic end of the spectrum (after Rollinson 1993).

Plot of silica v. alkali components in all Tyrone Igneous Complex samples, ... Available to Purchase

Published: 01 May 2009
Fig. 3. Plot of silica v. alkali components in all Tyrone Igneous Complex samples, with the division between tholeiitic and alkaline compositions indicated for the mafic end of the spectrum (after Rollinson 1993 ).