{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T21:12:19Z","timestamp":1774127539927,"version":"3.50.1"},"reference-count":29,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["An. Acad. Bras. Ci\u00eanc."],"published-print":{"date-parts":[[2014,12]]},"abstract":"<jats:p>The role played by human activity in coastline changes indicates a general tendency of retreating coasts, especially deltaic environments, as a result of the recent trend of sea level rise as well as the blockage of the transfer of sediments towards the coast, especially due to the construction of dams. This is particularly important in deltaic environments which have been suffering a dramatic loss of area in the last decades. In contrast, in this paper, we report the origin and evolution of an anthropogenic delta, the Valo Grande delta, on the south-eastern Brazilian coast, whose origin is related to the opening of an artificial channel and the diversion of the main flow of the Ribeira de Iguape River. The methodology included the analysis of coastline changes, bathymetry and coring, which were used to determine the sedimentation rates and grain-size changes over time. The results allowed us to recognize the different facies of the anthropogenic delta and establish its lateral and vertical depositional trends. Despite not being very frequent, anthropogenic deltas represent a favorable environment for the record of natural and anthropogenic changes in historical times and, thus, deserve more attention from researchers of different subjects.<\/jats:p>","DOI":"10.1590\/0001-3765201420130168","type":"journal-article","created":{"date-parts":[[2014,11,15]],"date-time":"2014-11-15T13:09:45Z","timestamp":1416056985000},"page":"1597-1607","source":"Crossref","is-referenced-by-count":13,"title":["Coastline changes and sedimentation related with the opening of an artificial channel: the Valo Grande Delta, SE Brazil"],"prefix":"10.1590","volume":"86","author":[{"given":"MICHEL M. DE","family":"MAHIQUES","sequence":"first","affiliation":[{"name":"Universidade de S\u00e3o Paulo,  Brasil"}]},{"given":"RUBENS C.L.","family":"FIGUEIRA","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo,  Brasil"}]},{"given":"DANIEL P.V.","family":"ALVES","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo,  Brasil"}]},{"given":"DIANA M.","family":"ITALIANI","sequence":"additional","affiliation":[{"name":"Universidade de S\u00e3o Paulo,  Brasil"}]},{"given":"CRISTINA C.","family":"MARTINS","sequence":"additional","affiliation":[{"name":"Funda\u00e7\u00e3o de Estudos e Pesquisas Aqu\u00e1ticas\/FUNDESPA,  Brasil"}]},{"given":"JO\u00c3O M.A.","family":"DIAS","sequence":"additional","affiliation":[{"name":"Universidade do Algarve,  Portugal"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"385","DOI":"10.1016\/S0169-555X(03)00167-3","article-title":"Recent morphological channel changes in a delta\u00efc environment. The case of the Rh\u00f4ne River, France","volume":"57","author":"Antonelli C","year":"2004","journal-title":"Geomorphology"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0341-8162(78)80002-2","article-title":"The calculation of Lead-210 dates assuming constant rate of supply 210Pb to sediment","volume":"5","author":"Appleby PG","year":"1978","journal-title":"Catena"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1023\/A:1014209120642","article-title":"A new method for visualizing sediment particle size distributions","volume":"27","author":"Beierle BD","year":"2002","journal-title":"J Paleolimnol"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"2674","DOI":"10.1016\/j.scitotenv.2010.03.004","article-title":"Natural and human forcing in recent geomorphic change; case studies in the Rio de la Plata basin","volume":"408","author":"Bonachea J et al","year":"2010","journal-title":"Sci Total Environ"},{"key":"ref5","author":"Commiss\u00e3o Geographica e Geol\u00f3gica do Estado de S\u00e3o Paulo","year":"1914"},{"key":"ref6","doi-asserted-by":"crossref","first-page":"1593","DOI":"10.1007\/s00254-008-1434-6","article-title":"Natural and anthropogenic influences in the northeastern coast of the Nile delta, Egypt","volume":"57","author":"El Banna MM","year":"2009","journal-title":"Environ Geol"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"649","DOI":"10.3208\/sandf.47.649","article-title":"Is there a technique for the determination of sedimentation rates based on calcium carbonate content? A comparative study on the Brazilian shelf","volume":"47","author":"Figueira RCL","year":"2007","journal-title":"Soils Found"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"1490","DOI":"10.1016\/j.csr.2007.02.010","article-title":"Changes in material fluxes from the Chanjiang River and their implications on the adjoining continental shelf ecosystem","volume":"28","author":"Gao S","year":"2008","journal-title":"Cont Shelf Res"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1007\/s002540050144","article-title":"A historical perspective of the morphological evolution in the lower Ebro delta","volume":"30","author":"Guill\u00e9n J","year":"1997","journal-title":"Environ Geol"},{"key":"ref10","doi-asserted-by":"crossref","first-page":"344","DOI":"10.1016\/j.palaeo.2005.03.025","article-title":"Late Glacial and Holocene paleoceanography in the Skagerrak from high-resolution grain size records","volume":"222","author":"Gyllencreutz R","year":"2005","journal-title":"Palaeogeogr Palaeoclimatol Palaeoecol"},{"key":"ref11","doi-asserted-by":"crossref","first-page":"863","DOI":"10.1177\/0959683610365936","article-title":"Mid- to late-Holocene paleoceanographic changes on the southeastern Brazilian shelf based on grain size records","volume":"20","author":"Gyllencreutz R","year":"2010","journal-title":"Holocene"},{"key":"ref12","year":"1973"},{"key":"ref13","first-page":"33","article-title":"O registro geol\u00f3gico da atividade antropog\u00eanica na Regi\u00e3o do Valo Grande, estado de S\u00e3o Paulo, Brasil","volume":"5","author":"Italiani DM","year":"2014","journal-title":"Quatern Environ Geosci"},{"key":"ref14","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.ecss.2007.02.017","article-title":"Anthropogenic influence on sedimentation and intertidal mudflat change in San Pablo Bay, California: 1856-1983","volume":"73","author":"Jaffe BE","year":"2007","journal-title":"Est Coast Shelf Sci"},{"key":"ref15","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1007\/BF02060548","article-title":"AB initio derivations of formulation for <sup>210<\/sup>Pb dating of sediments","volume":"148","author":"Joshi SR","year":"1991","journal-title":"J Radional Nucl Chemi"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"897","DOI":"10.1144\/0016-764904-018","article-title":"Recent evolution of a Mediterranean deltaic coastal zone: human impacts on the Inner Thermaikos Gulf, NW Aegean Sea","volume":"162","author":"Kapsimalis J","year":"2005","journal-title":"J Geol Soc"},{"key":"ref17","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1590\/S1679-87592009000400007","article-title":"Anthropogenic influences in a lagoonal environment: A multiproxy approach at the Valo Grande mouth, Canan\u00e9ia-Iguape System (SE Brazil)","volume":"57","author":"Mahiques MM","year":"2009","journal-title":"Braz J Oceanogr"},{"key":"ref18","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1016\/S0169-555X(01)00183-0","article-title":"Environmental changes in the central Po Plain (northern Italy) due to fluvial modifications and anthropogenic activities","volume":"44","author":"Marchetti M","year":"2002","journal-title":"Geomorphology"},{"key":"ref19","doi-asserted-by":"crossref","first-page":"25","DOI":"10.5327\/Z1519-874X2008000100003","article-title":"Mudan\u00e7as morfol\u00f3gicas da extremidade NE da Ilha Comprida (SP) nos \u00faltimos dois s\u00e9culos","volume":"8","author":"Nascimento DR","year":"2008","journal-title":"Geologia USP S\u00e9rie Cient\u00edfica S\u00e3o Paulo"},{"key":"ref20","first-page":"443","article-title":"Human impact on coastal landform and sedimentation \u2013 The Yellow River example","volume":"28","author":"Ren M","year":"1992","journal-title":"GeoJournal"},{"key":"ref21","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jsames.2007.09.002","article-title":"Morphodynamics of the Pacific and Caribbean deltas of Colombia, South America","volume":"25","author":"Restrepo JD","year":"2008","journal-title":"Journal of South American Earth Science"},{"key":"ref22","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1023\/A:1013219332322","article-title":"<sup>210<\/sup>Pb and <sup>137<\/sup>Cs geochronologies in the Cananeia-Iguape Estuary (S\u00e3o Paulo, Brazil)","volume":"249","author":"Saito RT","year":"2001","journal-title":"J Radioanal Nucl Chem"},{"key":"ref23","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1023\/A:1013228616973","article-title":"Geochronology of sediments in the Cananeia-Iguape estuary and in the continental shelf of S\u00e3o Paulo State, Brazil","volume":"250","author":"Saito RT","year":"2001","journal-title":"J Radioanal Nucl Chem"},{"key":"ref24","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1016\/j.geomorph.2008.11.004","article-title":"A review of the Delta Po evolution (Italy) related to climatic changes and human impacts","volume":"107","author":"Simeoni U","year":"2009","journal-title":"Geomorphology"},{"key":"ref25","doi-asserted-by":"crossref","first-page":"681","DOI":"10.1038\/ngeo629","article-title":"Sinking deltas due to human activities","volume":"2","author":"Syvitski et al","year":"2009","journal-title":"Nature Geoscience"},{"key":"ref26","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1086\/509246","article-title":"Geology, geography, and humans battle for dominance over the delivery of fluvial sediment to the coastal ocean","volume":"115","author":"Syvitski JPM","year":"2007","journal-title":"J Geol"},{"key":"ref27","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1016\/j.gloplacha.2006.12.001","article-title":"Morphodynamics of deltas under the influence of humans","volume":"57","author":"Syvitski JPM","year":"2007","journal-title":"Global Planet Change"},{"key":"ref28","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1126\/science.1109454","article-title":"Impact of humans on the flux of terrestrial sediment to the global coastal ocean","volume":"308","author":"Syvitski JPM","year":"2005","journal-title":"Science"},{"key":"ref29","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1590\/S0373-55241983000200002","article-title":"Din\u00e2mica de sedimenta\u00e7\u00e3o das fei\u00e7\u00f5es de assoreamento da regi\u00e3o lagunar Canan\u00e9ia-Iguape, Estado de S\u00e3o Paulo","volume":"32","author":"Tessler MG","year":"1983","journal-title":"Boletim do Instituto Oceanogr\u00e1fico S\u00e3o Paulo"}],"container-title":["Anais da Academia Brasileira de 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