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Index Note: Page numbers denoted in italics indicate figures and those in bold indicate tables. Abbott, D., 760 separating two distinct terranes, 114–116 Acadian Events, 183 terranes juxtaposition, 116–117 Acceleration-strain tensor, 745 Archibald Don. A Memoir (Sayle), 46 Arcuate thrust toe Precambrian Mylonite Zone, Ard gneiss 715–736 Ialltaig, 56–57 Achiniver Zone, 528 Loch Maree Group, 63 Achmelvich, 56 Ardnamurchan, 239 Achnashellach area, 16 Ardnish Achness Falls, 368 pegmatites, 242 Achness Nappe, 371 Rb–Sr muscovite ages, 239 Achness Thrust, 363, 369, 371 Arenig, 21 Cassley Folds, 365 Argentine Precordillera, 192, 199, 841 geological maps, 368 Marathon-Solitario basin, 201 ACM. See Attico-Cycladic Massif proto-Appalachian margin, 193 (ACM, Internal Hellenides, Greece) Argentine–Texan tectonic interaction, 203 Adams, F. D., 520 Argyll Group, 127 Africa Arkle, 10–11 inversion v. simple extension or strike-slip, 839 Arnaboll sector cross-section, 325 Mesozoic–Cenozoic rift system, 836 Arnaboll Thrust, 10, 291, 323 rift system, 838, 839 distribution deformation, 330 AFTA studies, 817 faults, 292 Alkali metasomatism, 64 plane, 327 Allison, I., 475, 478, 479 Arnaboll Thrust Sheet, 324 Allochthonous unit, 775–776 basement, 329 Allochthon unmetamorphosed rocks, 217 deformation, 327–329, 445–449, 479–480, 508–509, Allt Ealag, 29 514–517 Allt nan Sleach quartzites, 489 ductility, 330–332 Allt Rugaidh area fault rocks, 328, 445–449, 508–509, 514–517, 524–526 geological map, 368 foliation form lines, 326 Alps, 3, 31, 34, 36, 42, 222, 311, 316 internal deformation, 321–332 kilometre-scale thrusting, 23 large-scale deformation, 329–330 Altnaharra Formation psammitic rocks Lewisian basement, 327 mullion structures, 365 pegmatites, 327, 450 Alt nan Sleach stream strain localization, 330–332 crystal fabrics, 489–490 structure, 321–332 vorticity data, 489, 586 surface, 10, 325–327, 518 Amazonia, 245 thrust belt strain localization, 321–332 Amphibolite facies, 59, 63 thrusting patterns, 330–332 Laxford, 74 Asian crust, 218 overprinting, 56 Assigning crustal residence to Lewisian granulites, 81–99 Southern District, 64 Assynt, 308 Andalusite zone, 140 geological mapping, 29 Anderson, E. M., 23, 39, 464 klippen, 394, 399 Antarctica minor intrusions, 393, 489 Delamerian-Ross orogen, 197 post-Cambrian igneous rocks, 21 Laurentian craton, 203 vertical section, 339 tectonic tracer, 195 virtual field trip, 436 Appalachians, 3, 37, 189, 192 Assynt 1912 BA Field Excursion, 47 cross-section, 412 participants, 32 finite strain data, 415 participants’ signatures, 33 foreland fold-thrust belt, 412, 413 Assynt Culmination, 295 margin, 193 Borralan alkaline intrusions, 383–400 retrodeformed sections, 413 cross-sections, 343 structure, 42 geological map, 341 tectonic index map, 410 geological setting, 335–338 thrust, 23 lateral variations and linkages in thrust geometry, Aptian ammonites, 36 335–354 Archaean geothermal gradient, 63 research history, 340 Archaean oceanic crust, 72 simplified structure, 337 Archaean protolith ages, 246 thrusting relationships, 383–400 Archaean terrane boundary, 103–118 transverse zones and origin, 350–352 previous work, 105–109 TTZ, 340–342, 354 848 INDEX Assynt Terrane, 69, 109 Basement-influenced rifting, 795–823 geochemical characteristics, 113–114 Basement inliers tectonic setting and tectonic slides, Assynt Window, 386 237–238 Asturias, 36 Basement reactivation, 335, 351, 376, 797 Atlantic Ocean, 104 Basin and Range, 767 Atomic Energy Commission, 37 Basin-bounding fault, 816 Attico-Cycladic Massif (ACM, Internal Hellenides, Greece) Basin development, 795–823 ductile thrust zones flow vorticity, 687–710 Basin inversion concept, 828 geological map, 689 Bassins ferme´s des Pre´alpes suisses (Je´re´mine), 38 study area, 688 BC foothills, 834 synthetic transect, 691 Bealach Traligill Fault, 347 Attico-Cycladic Massif examples, 687–710 Beinn Aird da Loch, 300 Evia thrust zone, 690–692 Beinn an Fhurain, 30 finite strain analysis, 698–699 Beinn nan Chaimh-seag, 30 geological setting, 688–690 Beinn Uidhe Thrust, 342 main structures and fabrics, 690–692 Bell, A. M., 475 microstructural and petrofabric analysis, 692–698 Ben Arnaboll, 524, 529 microstructures, 692–698 Arnaboll Thrust Sheet, 325 Ochi thrust zone, 692 clean copy map series, 324 quartz c-axis fabrics, 698 map, 322 sense of shear, 704–706 Moine Thrust, 527 tectonic implications, 706–708 pegmatitic material, 327 transport parallel elongation, 703–704 quartz fabrics, 478, 530 vertical thinning, 703–704 quartzites, 445 vorticity analysis, 699–703 thrusts contour map, 331 kinematic vorticity profiles, 702–703 Benbecula, 66 oblique grain shape and quartz c-axis fabrics, 702 Ben Fhurain Thrust, 397, 399 quartz c-axis fabrics and strain ratio, 701 Ben Hee area, 258–260, 268, 455 rigid porphyroclasts, 699–701 Ben Hee–Loch More area, 446, 483 vorticity number variation potential lithological Ben Hope Nappe, 631, 638 control, 703 fabric development, 366 Australian Delamerian-Ross orogen, 197 folds, 378 Austrian Geological Survey, 36 psammites, 366 Austro–Hungarian Empire, 36 psammitic rocks, 369 Autometamorphism, 64 Ben Hope Phase, 376 Average one-dimensional Earth model, 757 Ben Hope Thrust, 365, 371, 455 geological map, 506 Back scatter electron (BSE), 175, 476, 603, 605–606, microstructures and quartz fabrics, 485 637–638, 663 Ben Hope Zone, 530 Badcall, 59 Ben Loyal, 812–813 defined, 61 Ben More Nappe, 34 granulite facies rocks, 72 Ben More Thrust, 30, 342, 344, 387, 396 granulites, 65 sheet, 340, 479 trondhjemitic sheet, 67 Ben Stack, 57 Badnabay zone, 106 Ben Tongue conglomerate, 817 Bailey, E. B., 7, 39, 391, 399, 483 Ben Vuirich Granite, 128 lateral translation, 23 Ben Wyvis area, 446, 454 slide definition, 532 Bequerel, H., 81 slide zones, 531 Bergen Arc Shear Zone, 781 Baker, D. W., 475 Bergen District, 36 Baltica, 245 Bertrand, M., 23 Gothian belt, 71 Beyond Hope duplex, 299, 479 Palaeoproterozoic events and structures, 71 BGS. See British Geological Survey (BGS) Proterozoic continent, 70 Biharmonic equation, 752 Baltica-Laurentia collision, 362 Biotite, 56 Bandits of Inchnadamph, 12 bearing gneisses, 108 Barber, A. J., 467–468 cordierite zone, 140 Barra, 66 Birmingham University, 38, 494 Barrois, C. E., 36, 37 BIRPS. See British Institutions Reflection Profiling Barrovian Syndicate (BIRPS) index minerals, 214 Blackbourn, 817 metamorphic sequence, 121 Black flinty material, 527 metamorphism, 121, 122, 153 Blenkinsop, T., 475 units, 154 Bongor basins, 837 Barrow, G., 451 Bonney, T. G., 445, 447, 449, 510 Basal quartzite, 396 cataclasite, 534 Basal Torridonian unconformity view, 20 great earth movements, 522 Basement faults, 351–352 microstructures significance, 470 INDEX 849 Borolanite mass, 30, 391 Caledonian crustal architecture Borralan alkaline intrusions and thrusting relationships contractional folds and thrusts, 212–213 Moine Thrust zone, southern Assynt culmination, evolution, 207–223 383–400 extensional shear zones and faults, 219–221 intrusions, 387, 399 Foreland Basin evolution, 222 Loch Borralan pluton, 390–393 migmatite cores and magmatism, 218–219 Loch Urigill carbonatite outcrops, 393 mountain building processes, 207–223 margins, 392 orogen parallel displacements, 221–222 thrusting and mylonitization relationship, 394 regional high-grade metamorphism, 213–218 Borralan igneous complex, 295 regional suture zones, 210–212 Borralan pluton, 396 strike slip faulting, 221–222 pseudoleucite aggregates structural data, 391 tectonic framework, 208 Bosnia-Herzgovina, 36 Caledonian Foreland, 810 Bouguer gravity anomaly map, 372 Colour Landsat image, 798 Boulonnais, 36 cross-cutting relationships, 807 Boulton, W. S., 38 faulting, 807–809 Bowler, S., 475, 479 Caledonian metamorphism, 239 Boyd Bastionen Fault, 778 mineral assemblages, 781 Boyndie Bay Caledonian nappe stratigraphy, 781 Portsoy transect, 137 Caledonian Orogen, 165, 362, 383, 385, 462, 767 vergence changes, 138 Baltica-Laurentia collision, 362 Boyndie Syncline, 125 belt, 303 Buchan Block, 126 greenschist-amphibolite facies, 256 formation, 138 kinematic extrusion, 785 Scotland lithospheric scale, 155–156 Palaeozoic Laurentia–Baltica collisional suture, 190 Boyne Castle Limestone, 136 wedge, 779 Breabag Dome, 343, 344 Caledonian S-type granitoids, 772 fold-and-thrust duplex system, 346 Caledonian thrust Breabag Stronchrubbie System area, 344, 345, 349 kinematic indicators, 769 Breaching, 303 systems, 316, 819 Brioverian rocks, 36 Caledonides British Association for the Advancement of Science, deep crustal structure, 213 29, 34 extensional collapse, 776 British Columbia, 834 extensional detachment formation modes, 770 British Geological Survey (BGS), 7, 47, 272, 363, 387 geochronology data, 217 Assynt map (1923), 436 geological and structural framework, 209 British Institutions Reflection Profiling Syndicate (BIRPS), Laurentia, 208 309, 799 Laurentian side, 216 Brittany metamorphic histories, 217 metamorphic rocks, 38 orogenic activity timing, 773, 773 Proterozoic Brioverian rocks, 36 orogen parallel displacements, 222 Brøgger, W., 23 reconcile regional extensions, 786 Bronzite picrites, 62 syn-collisional extension, 785 BSE. See Back scatter electron (BSE) systematic mapping of metamorphic Bua lighthouse structures, 729 conditions, 769 Bua mylonites tectonic model, 211 dextral strike-slip structures, 724 Callaway, C., 9, 297, 445, 447, 449, 512, 520, 544 inclined transpression model, 724 Eriboll area, 511 lineation, 726 flattened relic detrital grains, 486 Bua peninsula microstructures significance, 470 aeromagnetic
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  • A New Stratigraphic Framework for the Early Neoproterozoic Successions of Scotland

    A New Stratigraphic Framework for the Early Neoproterozoic Successions of Scotland

    Accepted Manuscript Journal of the Geological Society A new stratigraphic framework for the early Neoproterozoic successions of Scotland Maarten Krabbendam, Rob Strachan & Tony Prave DOI: https://doi.org/10.1144/jgs2021-054 To access the most recent version of this article, please click the DOI URL in the line above. When citing this article please include the above DOI. Received 14 May 2021 Revised 19 August 2021 Accepted 23 August 2021 © 2021 UKRI. The British Geological Survey. Published by The Geological Society of London http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/) Manuscript version: Accepted Manuscript This is a PDF of an unedited manuscript that has been accepted for publication. The manuscript will undergo copyediting, typesetting and correction before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Although reasonable efforts have been made to obtain all necessary permissions from third parties to include their copyrighted content within this article, their full citation and copyright line may not be present in this Accepted Manuscript version. Before using any content from this article, please refer to the Version of Record once published for full citation and copyright details, as permissions may be required. Downloaded from http://pubs.geoscienceworld.org/jgs/article-pdf/doi/10.1144/jgs2021-054/5396122/jgs2021-054.pdf by guest on 24 September 2021 A new stratigraphic framework for the early Neoproterozoic successions of Scotland Maarten Krabbendam1*, Rob Strachan2, Tony Prave3 1British Geological Survey, Lyell Centre, Research Avenue, Edinburgh EH14 4AP, Scotland, UK 2School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth, PO1 3QL, UK.