000129948 001__ 129948
000129948 005__ 20240116090136.0
000129948 0247_ $$2doi$$a10.1111/sed.12850
000129948 0248_ $$2sideral$$a124152
000129948 037__ $$aART-2021-124152
000129948 041__ $$aeng
000129948 100__ $$aSuarez-Gonzalez, P.
000129948 245__ $$aColumnar microbialites of the upper Miocene of Mallorca (Spain): A new morphogenetic model based on concurrent accretion and bioturbation – uncommon or overlooked?
000129948 260__ $$c2021
000129948 5060_ $$aAccess copy available to the general public$$fUnrestricted
000129948 5203_ $$aBioturbation has long been considered an antagonist of microbialite development and preservation, because metazoan grazing and burrowing destroy benthic microbial communities. However, metazoan bioturbation, in conjunction with microbial accretion, may have had a significant role in the morphogenesis of some columnar microbialites, as suggested by the case study presented and by some Phanerozoic and Upper Proterozoic analogues discussed here. Late Miocene in age, the studied microbial biostrome developed in a western Mediterranean restricted shallow-water platform dominated by grainy sediments and with a notable influence of bioturbation. This study is focused on the complex accretionary history of the columnar microbialite biostrome and on its striking dark grey colour, which is attributed to Mn-oxyhydroxides precipitated during meteoric diagenesis linked to subaerial exposure. The characteristic columnar structure of the microbialite biostrome has features consistent with an accretionary origin of the columns, but also has features suggesting metazoan disruption. Therefore, a new morphogenetic model for columnar microbialites is presented, highlighting the concomitant roles of microbial accretion, bioturbation and grainy sediment infill of the intercolumn space. Whether this model is an exception or a rule, should be tested on other examples of Phanerozoic and Upper Proterozoic columnar microbialites. Nevertheless, this model is a step forward in understanding the complex microbe–metazoan interactions as constructive coexistence rather than just as destructive competition.
000129948 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E32-17R$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2013-42867-P$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2014-52096-P$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2014-52670-P$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2018-094034-B-C21
000129948 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000129948 590__ $$a3.81$$b2021
000129948 591__ $$aGEOLOGY$$b4 / 49 = 0.082$$c2021$$dQ1$$eT1
000129948 592__ $$a1.224$$b2021
000129948 593__ $$aStratigraphy$$c2021$$dQ1
000129948 593__ $$aGeology$$c2021$$dQ1
000129948 594__ $$a6.9$$b2021
000129948 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000129948 700__ $$aBenito, M.I.
000129948 700__ $$0(orcid)0000-0002-4212-0524$$aArenas, C.$$uUniversidad de Zaragoza
000129948 700__ $$aPomar, L.
000129948 7102_ $$12000$$2280$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Estratigrafía
000129948 773__ $$g69 (2021), 88-120$$pSedimentology$$tSEDIMENTOLOGY$$x0037-0746
000129948 8564_ $$s4309121$$uhttps://zaguan.unizar.es/record/129948/files/texto_completo.pdf$$yPostprint
000129948 8564_ $$s1552864$$uhttps://zaguan.unizar.es/record/129948/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000129948 909CO $$ooai:zaguan.unizar.es:129948$$particulos$$pdriver
000129948 951__ $$a2024-01-16-08:25:02
000129948 980__ $$aARTICLE