000118143 001__ 118143
000118143 005__ 20240319080949.0
000118143 0247_ $$2doi$$a10.1002/dep2.145
000118143 0248_ $$2sideral$$a126672
000118143 037__ $$aART-2022-126672
000118143 041__ $$aeng
000118143 100__ $$0(orcid)0000-0002-4212-0524$$aArenas-Abad, C.$$uUniversidad de Zaragoza
000118143 245__ $$aA multi-scale approach to laminated microbial deposits in non-marine carbonate environments through examples of the Cenozoic, north-east Iberian Peninsula, Spain
000118143 260__ $$c2022
000118143 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118143 5203_ $$aThis contribution focusses on stromatolites and oncolites as tools to seek diverse environmental and climate information at different temporal scales. The scales are: (a) Low frequency, dealing with macroscopic and megascopic scales, and (b) high frequency, involving calendar and solar frequency bands. Two depositional environments are used for this purpose: (a) Fluvial and fluvial–lacustrine, which can develop under high to moderate gradients, and in low-gradient conditions, and (b) lacustrine, subject to low-gradient, hydrologically closed lake conditions. Several current and ancient examples in the Iberian Peninsula allow high-frequency and low-frequency analyses. Within the wedge-shaped depositional units that fill the high- to moderate-gradient, stepped fluvial systems, stromatolites form half domes and lenticular bodies, commonly at the wedge front. Oncolites are uncommon. These stromatolites developed in moderate to fast-flowing water in stepped cascades and rapids. Their geometry and extent reflect the topography of the bedrock and later ongoing growth. In low-gradient fluvial and fluvial-(open) lacustrine systems the depositional units are tabular, low-angle wedge-shaped and lenticular and have great spatial facies variability. The dominant oncoid and coated-stem limestones form gently lenticular stacked bodies, developed in wide, low to high-sinuosity channels within wide tufaceous palustrine areas and small lakes. In the Ebro Basin saline carbonate lacustrine systems, stromatolites form thin planar to domed and stratiform bodies and are associated with muddy-grainy laminated carbonates and very rare oncolites, together forming ramp-shaped units that represent the inner fringes of high lake-level deposits. This geometry reflects low-gradient lake surface and shallow water conditions. Textural and structural features allow different ranks of laminae and types of lamination to be distinguished. Texture, together with the d13C and d18O values of consecutive laminae, are useful in distinguishing environmental and climate changes operating over different time spans. Periodicity analysis of lamination can help to discern any temporal significance in the lamination.
000118143 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/BES-2014-069389$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2013-42867-P$$9info:eu-repo/grantAgreement/ES/MINECO/PID2019-106440GB-C22
000118143 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118143 590__ $$a2.4$$b2022
000118143 591__ $$aGEOLOGY$$b8 / 48 = 0.167$$c2022$$dQ1$$eT1
000118143 594__ $$a3.7$$b2022
000118143 592__ $$a0.817$$b2022
000118143 593__ $$aEnvironmental Science (miscellaneous)$$c2022$$dQ1
000118143 593__ $$aGeology$$c2022$$dQ1
000118143 593__ $$aStratigraphy$$c2022$$dQ1
000118143 593__ $$aPaleontology$$c2022$$dQ1
000118143 593__ $$aOceanography$$c2022$$dQ1
000118143 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118143 7102_ $$12000$$2280$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Estratigrafía
000118143 773__ $$g8, 1 (2022), 67-101$$pDepos. record$$tThe depositional record$$x2055-4877
000118143 8564_ $$s11044575$$uhttps://zaguan.unizar.es/record/118143/files/texto_completo.pdf$$yVersión publicada
000118143 8564_ $$s2102781$$uhttps://zaguan.unizar.es/record/118143/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118143 909CO $$ooai:zaguan.unizar.es:118143$$particulos$$pdriver
000118143 951__ $$a2024-03-18-12:51:05
000118143 980__ $$aARTICLE