000129937 001__ 129937
000129937 005__ 20240116090136.0
000129937 0247_ $$2doi$$a10.1111/sed.12365
000129937 0248_ $$2sideral$$a99825
000129937 037__ $$aART-2017-99825
000129937 041__ $$aeng
000129937 100__ $$0(orcid)0000-0002-4212-0524$$aArenas, C.$$uUniversidad de Zaragoza
000129937 245__ $$aTemporal and environmental significance of microbial lamination: Insights from Recent fluvial stromatolites in the River Piedra, Spain
000129937 260__ $$c2017
000129937 5060_ $$aAccess copy available to the general public$$fUnrestricted
000129937 5203_ $$aDespite extensive research, the environmental and temporal significance of microbial lamination is still ambiguous because of the complexity of the parameters that control its development. A 13 year monitored record of modern fast-accreting calcite stromatolites (mean 14 mm year-1) from artificial substrates installed in rapid flow in the River Piedra (north-east Spain) allows comparison of the sedimentological attributes of successive six-month depositional packages with the known climatic, hydrophysical and hydrochemical parameters of the depositional system. The stromatolites are formed of dense, porous and macrocrystalline composite laminae. The dense and porous composite laminae, which are composed of two to eight laminae consisting largely of calcified cyanobacteria, are characterized by: (i) dense composite laminae, up to 15 mm thick, mostly with successive dense laminae and minor alternating dense and porous laminae; and (ii) porous composite laminae, up to 12 mm thick, consisting mainly of porous laminae alternating with thinner dense laminae. Most of the dense composite laminae formed during the warm periods (April to September), whereas most of the porous composite laminae developed in the cool periods (October to March). Each dense and porous composite lamina represents up to or slightly longer than six months. The alternation of these two types of composite laminae parallels seasonal changes in temperature. The dense and porous laminae result from shorter (for example, intraseasonal) variations in temperature, insolation and hydrological conditions. The macrocrystalline laminae, with crystals >100 µm long, occur isolated and grouped into composite laminae up to 1·7 mm thick. Their occurrence suggests the absence or poor development of microbial mats over periods of weeks to several months. Thus, stromatolite lamination can record different-order, periodic and non-periodic changes in the magnitude of environmental parameters over a single year. These results hold important implications for the temporal and environmental interpretation of lamination in microbial structures.
000129937 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/CGL2006-05063-BTE$$9info:eu-repo/grantAgreement/ES/MICINN/CGL2013-42867$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2009-09216-CLI$$9info:eu-repo/grantAgreement/ES/REN2002-03575-CLI
000129937 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000129937 590__ $$a3.069$$b2017
000129937 591__ $$aGEOLOGY$$b6 / 47 = 0.128$$c2017$$dQ1$$eT1
000129937 592__ $$a1.832$$b2017
000129937 593__ $$aStratigraphy$$c2017$$dQ1
000129937 593__ $$aGeology$$c2017$$dQ1
000129937 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000129937 700__ $$aJones, B.
000129937 7102_ $$12000$$2280$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Estratigrafía
000129937 773__ $$g64, 6 (2017), 1597-1629$$pSedimentology$$tSEDIMENTOLOGY$$x0037-0746
000129937 8564_ $$s6728420$$uhttps://zaguan.unizar.es/record/129937/files/texto_completo.pdf$$yPostprint
000129937 8564_ $$s840318$$uhttps://zaguan.unizar.es/record/129937/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000129937 909CO $$ooai:zaguan.unizar.es:129937$$particulos$$pdriver
000129937 951__ $$a2024-01-16-08:24:03
000129937 980__ $$aARTICLE