000109627 001__ 109627 000109627 005__ 20240319080947.0 000109627 0247_ $$2doi$$a10.1007/s41513-021-00181-0 000109627 0248_ $$2sideral$$a126007 000109627 037__ $$aART-2022-126007 000109627 041__ $$aeng 000109627 100__ $$0(orcid)0000-0002-1954-6180$$aLaita, E.$$uUniversidad de Zaragoza 000109627 245__ $$aWeathering events recorded in uppermost Hauterivian-lower Barremian clay-dominated continental successions from the NW Iberian Range: climatic vs. tectonic controls 000109627 260__ $$c2022 000109627 5060_ $$aAccess copy available to the general public$$fUnrestricted 000109627 5203_ $$aThe facies and clay mineral study of clay/marl-rich levels from the Torrelapaja Formation (latest Hauterivian-early Barremian, NW Iberian Range, NE Spain) allowed to establish the palaeoclimatic and palaeoenvironmental conditions under they were generated. The muddy levels and pisoids contained therein of two logs were sampled and studied by X-ray diffraction and optical and electron microscopy. A similar mineralogical upwards trend is recorded in both logs, with a decrease in calcite coupled with an increase in quartz and orthoclase content and constant proportions in goethite, hematite, diaspore, anatase, rutile, ilmenite, and clay mineral content. The lower muddy levels have higher kaolinite content than the upper levels, where illitic phases are the dominant clay minerals. Smectite and intergrowths of illitic phases and kaolinite are also detected upwards. The kaolinite and smectite textures indicate an authigenic origin, whereas the illitic phases are former phases acting as a substrate for kaolinite crystallization. Pisoids mineralogy and texture show an in-situ origin, but some are fractured, indicating reworking processes. The mineral association found in the muddy levels is characteristic of oxisols formed under warm and humid conditions. The upward decrease in kaolinite content is coeval with an increase in the illitic phases and quartz content, related to siliciclastic input, but is also coeval with the presence of authigenic smectite. This indicates a decrease in chemical weathering, not fully registered due to the siliciclastic contribution, which was possibly associated with a change to colder, drier conditions during the latest Hauterivian-early Barremian in the studied area. 000109627 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E18-20R$$9info:eu-repo/grantAgreement/ES/MCIU/RTI2018-093419-B-100 000109627 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000109627 590__ $$a1.3$$b2022 000109627 592__ $$a0.484$$b2022 000109627 591__ $$aGEOLOGY$$b30 / 48 = 0.625$$c2022$$dQ3$$eT2 000109627 593__ $$aStratigraphy$$c2022$$dQ2 000109627 593__ $$aGeology$$c2022$$dQ2 000109627 594__ $$a3.2$$b2022 000109627 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000109627 700__ $$0(orcid)0000-0002-4970-6333$$aBauluz, B.$$uUniversidad de Zaragoza 000109627 700__ $$0(orcid)0000-0002-2430-7424$$aAurell, M.$$uUniversidad de Zaragoza 000109627 700__ $$0(orcid)0000-0003-1112-524X$$aBadenas, B.$$uUniversidad de Zaragoza 000109627 700__ $$0(orcid)0000-0002-2169-4561$$aYuste, A.$$uUniversidad de Zaragoza 000109627 7102_ $$12000$$2280$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Estratigrafía 000109627 7102_ $$12000$$2120$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Cristalografía Mineralog. 000109627 773__ $$g48 (2022), 45–63$$pJ. iber. geol.$$tJOURNAL OF IBERIAN GEOLOGY$$x1698-6180 000109627 8564_ $$s7284605$$uhttps://zaguan.unizar.es/record/109627/files/texto_completo.pdf$$yVersión publicada 000109627 8564_ $$s2158423$$uhttps://zaguan.unizar.es/record/109627/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000109627 909CO $$ooai:zaguan.unizar.es:109627$$particulos$$pdriver 000109627 951__ $$a2024-03-18-12:43:24 000109627 980__ $$aARTICLE