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dc.contributor.authorSchindler, R.J.
dc.contributor.authorParsons, D.R.
dc.contributor.authorYe, L.
dc.contributor.authorHope, J.A.
dc.contributor.authorBaas, J.H.
dc.contributor.authorPeakall, J.
dc.contributor.authorManning, A.J.
dc.contributor.authorAspden, R.J.
dc.contributor.authorMalarkey, J.
dc.contributor.authorSimmons, S.
dc.contributor.authorPaterson, D.M.
dc.contributor.authorLichtman, I.D.
dc.contributor.authorDavies, A.G.
dc.contributor.authorThorne, P.D.
dc.contributor.authorBass, S.J.
dc.identifier.citationSchindler , R J , Parsons , D R , Ye , L , Hope , J A , Baas , J H , Peakall , J , Manning , A J , Aspden , R J , Malarkey , J , Simmons , S , Paterson , D M , Lichtman , I D , Davies , A G , Thorne , P D & Bass , S J 2015 , ' Sticky stuff : redefining bedform prediction in modern and ancient environments ' Geology , vol. 43 , no. 5 , pp. 399-402 .
dc.identifier.otherPURE: 195606533
dc.identifier.otherPURE UUID: 4e1f2697-89d0-4501-a27e-2e3c264f32a6
dc.identifier.otherScopus: 84929468503
dc.identifier.otherORCID: /0000-0003-1174-6476/work/47136325
dc.identifier.otherWOS: 000357619400008
dc.descriptionThis work was funded by the UK Natural Environment Research Council (NERC) under the COHBED project (NE/1027223/1). Paterson was funded by the Marine Alliance for Science and Technology for Scotland (MASTS).en
dc.description.abstractThe dimensions and dynamics of subaqueous bedforms are well known for cohesionless sediments. However, the effect of physical cohesion imparted by cohesive clay within mixed sand-mud substrates has not been examined, despite its recognized influence on sediment stability. Here we present a series of controlled laboratory experiments to establish the influence of substrate clay content on subaqueous bedform dynamics within mixtures of sand and clay exposed to unidirectional flow. The results show that bedform dimensions and steepness decrease linearly with clay content, and comparison with existing predictors of bedform dimensions, established within cohesionless sediments, reveals significant over-prediction of bedform size for all but the lowermost clay contents examined. The profound effect substrate clay content has on bedform dimensions has a number of important implications for interpretation in a range of modern and ancient environments, including reduced roughness and bedform heights in estuarine systems and the often cited lack of large dune cross-sets in turbidites. The results therefore offer a step change in our understanding of bedform formation and dynamics in these, and many other, sedimentary environments.
dc.rights© 2015 Geological Society of America. Open Access under Creative Commons by Attribution ( Use, distribution and reproduction are unrestricted. Authors and original publication must be credited.en
dc.subjectGB Physical geographyen
dc.titleSticky stuff : redefining bedform prediction in modern and ancient environmentsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Sediment Ecology Research Groupen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews.St Andrews Sustainability Instituteen
dc.description.statusPeer revieweden

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