{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T16:53:57Z","timestamp":1771260837517,"version":"3.50.1"},"reference-count":22,"publisher":"Geological Society of London","issue":"2","license":[{"start":{"date-parts":[[2006,11,1]],"date-time":"2006-11-01T00:00:00Z","timestamp":1162339200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-002"}],"content-domain":{"domain":["www.lyellcollection.org"],"crossmark-restriction":true},"short-container-title":["SJG"],"published-print":{"date-parts":[[2006,11]]},"abstract":"<jats:title>Synopsis<\/jats:title>\n          <jats:p>New British Geological Survey mapping has examined the stratigraphy and structure of Dalradian strata in the Gaick region of the Central Grampian Highlands of Scotland. In the north of that area, turbiditic strata in the Creag Dhubh Psammite Formation (Corrieyairack Subgroup) pass, via a well-defined sedimentary transition, into the stratigraphically younger Gaick Psammite Formation (Glen Spean Subgroup). This latter formation dominates the lithostratigraphy of the Gaick region, records shallow-water marine shelf conditions throughout, and was probably 1 to 2 km thick prior to deformation. Ordovician (Grampian) orogenesis affected the sedimentary rocks now arranged in a stack of Caledonian recumbent kilometre-scale F2 folds with gently ENE-plunging axes. Regional facing on these recumbent folds is typically sideways to the south. Southeast of the Gaick region, the folds, and thus facing, become progressively inclined and dip to the SE beneath the outcrop of the Appin Group Dalradian. No significant Fl folds, and hence no related facing changes, have been detected within this D2 fold stack. The structure of the Gaick\u2013Drumochter area is therefore essentially a flat belt formed in the D2 deformation event and here named the Gaick Fold Complex. The D2 recumbent structures of this flat belt were rotated and steepened by D3 deformation into the Tummel Steep Belt to the SE, and adjacent to the Glen Banchor High to the NW. Tectonic transport in D2 in the Gaick Fold Complex is interpreted to be oriented on a north\u2013south azimuth, similar to that in the Tay Nappe farther south. Such an interpretation implies that the NE\u2013SW \u2018Caledonian trend\u2019 is a consequence of D3 deformation and reorientation, rather than a primary feature of the Grampian Orogeny.<\/jats:p>","DOI":"10.1144\/sjg42020149","type":"journal-article","created":{"date-parts":[[2010,1,15]],"date-time":"2010-01-15T00:30:59Z","timestamp":1263515459000},"page":"149-159","update-policy":"https:\/\/doi.org\/10.1144\/crossmark-policy","source":"Crossref","is-referenced-by-count":6,"title":["The Gaick Fold Complex: large-scale recumbent folds and their implications for Caledonian structural architecture in the Central Grampian Highlands"],"prefix":"10.1144","volume":"42","author":[{"given":"A. G.","family":"Leslie","sequence":"first","affiliation":[{"name":"British Geological Survey, Murchison House, Edinburgh, EH9 3LA, UK (e-mail:)"}]},{"given":"M.","family":"Krabbendam","sequence":"additional","affiliation":[{"name":"British Geological Survey, Murchison House, Edinburgh, EH9 3LA, UK (e-mail:)"}]},{"given":"R. A.","family":"Smith","sequence":"additional","affiliation":[{"name":"British Geological Survey, Murchison House, Edinburgh, EH9 3LA, UK (e-mail:)"}]}],"member":"1881","published-online":{"date-parts":[[2022,5,4]]},"reference":[{"key":"e_1_3_2_2_1","volume-title":"Neoproterozoic basin analysis: a combined sedimentological and provenance study in the Grampian Group, Central Highlands, Scotland","author":"BANKS C.J.","year":"2005","unstructured":"BANKS, C.J. 2005. Neoproterozoic basin analysis: a combined sedimentological and provenance study in the Grampian Group, Central Highlands, Scotland. PhD thesis, University of Keele, UK."},{"key":"e_1_3_2_3_1","volume-title":"Solid Geological Map, Sheet 55 W (Schiehallion). 1:50 000","author":"BRITISH GEOLOGICAL SURVEY","year":"2000","unstructured":"BRITISH GEOLOGICAL SURVEY 2000. Solid Geological Map, Sheet 55 W (Schiehallion). 1:50 000, British Geological Survey, Keyworth, Nottingham."},{"key":"e_1_3_2_4_1","volume-title":"Solid Geological Map, Sheet 63E (Dalwhinnie). 1:50 000","author":"BRITISH GEOLOGICAL SURVEY","year":"2002","unstructured":"BRITISH GEOLOGICAL SURVEY 2002. Solid Geological Map, Sheet 63E (Dalwhinnie). 1:50 000, British Geological Survey, Keyworth, Nottingham."},{"key":"e_1_3_2_5_1","volume-title":"Solid Geological Map, Sheet 64W (Newtonmore). 1:50 000","author":"BRITISH GEOLOGICAL SURVEY","year":"2006","unstructured":"BRITISH GEOLOGICAL SURVEY 2006. (in press) Solid Geological Map, Sheet 64W (Newtonmore). 1:50 000, British Geological Survey, Keyworth, Nottingham."},{"key":"e_1_3_2_6_1","volume-title":"Geology of the Glenshee District. Sheet 56 W with parts of Sheets 55E, 65 W and 64E (Scotland)","author":"CRANE A.","year":"2002","unstructured":"CRANE, A., GOODMAN, S., KRABBENDAM, M., LESLIE, A.G., PATTERSON, I.B., ROBERTSON, S. & ROLLIN, K.E. 2002. Geology of the Glenshee District. Sheet 56 W with parts of Sheets 55E, 65 W and 64E (Scotland). Memoir of the British Geological Survey."},{"key":"e_1_3_2_7_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.156.6.1217"},{"key":"e_1_3_2_8_1","doi-asserted-by":"publisher","DOI":"10.1144\/0016-764903-094"},{"key":"e_1_3_2_9_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.154.1.0015"},{"key":"e_1_3_2_10_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.146.5.0733"},{"key":"e_1_3_2_11_1","doi-asserted-by":"publisher","DOI":"10.1144\/jgs.157.6.1149"},{"key":"e_1_3_2_12_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg13020165"},{"key":"e_1_3_2_13_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg13030237"},{"key":"e_1_3_2_14_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.156.6.1175"},{"key":"e_1_3_2_15_1","doi-asserted-by":"publisher","DOI":"10.1144\/jgs.157.2.381"},{"key":"e_1_3_2_16_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.156.6.1163"},{"key":"e_1_3_2_17_1","first-page":"205","article-title":"New evidence for a Central Highland root zone","volume":"8","author":"THOMAS P.R.","year":"1979","unstructured":"THOMAS, P.R. 1979. New evidence for a Central Highland root zone. In Harris, A.L., Holland, C.H. & Leake, B.E. (eds) The Caledonides of the British Isles \u2013 reviewed. Geological Society, London, Special Publications, 8, 205\u2013211.","journal-title":"The Caledonides of the British Isles \u2013 reviewed"},{"key":"e_1_3_2_18_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.137.4.0469"},{"key":"e_1_3_2_19_1","first-page":"39","volume-title":"Excursion 1. A9 Road section \u2013 Blair Atholl to NewtonmoreAn Excursion Guide to the Moine Geology of the Scottish Highlands","author":"THOMAS P.R.","year":"1988","unstructured":"THOMAS, P.R. 1988. Excursion 1. A9 Road section \u2013 Blair Atholl to Newtonmore. In Allison, I., May, F. & Strachan, R.A. (eds) An Excursion Guide to the Moine Geology of the Scottish Highlands, A9, Scottish Academic Press, 39\u201350."},{"key":"e_1_3_2_20_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0263593300010919"},{"key":"e_1_3_2_21_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg27020135"},{"key":"e_1_3_2_22_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0016756899003143"},{"key":"e_1_3_2_23_1","volume-title":"Solid Geology of the Schiehallion district. Sheet 55 W (Scotland)","author":"TREAGUS J.E.","year":"2000","unstructured":"TREAGUS, J.E. 2000. Solid Geology of the Schiehallion district. Sheet 55 W (Scotland). 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