000132445 001__ 132445
000132445 005__ 20240311111224.0
000132445 0247_ $$2doi$$a10.1016/j.cretres.2023.105736
000132445 0248_ $$2sideral$$a137575
000132445 037__ $$aART-2024-137575
000132445 041__ $$aeng
000132445 100__ $$0(orcid)0000-0003-3652-3527$$aCasas, Antonio M.$$uUniversidad de Zaragoza
000132445 245__ $$aMagnetic surveying as a proxy for defining cyclicity in thick sedimentary fillings: Application to the Cretaceous Cameros Basin (N Spain)
000132445 260__ $$c2024
000132445 5060_ $$aAccess copy available to the general public$$fUnrestricted
000132445 5203_ $$aThis work proposes the application of magnetic surveying to the study of cyclicity in sedimentary basins. This application is favoured by the particular bed attitude/topography relationships found in the eastern sector of the Cretaceous Cameros Basin, N Spain. Both the measured total magnetic field (after diurnal correction) and the vertical magnetic gradient, provide a profile (14 cm separation between measurements, in average) of the short-wavelength magnetic anomalies associated with the sedimentary sequence. These anomalies depend on the magnetic susceptibility (dominant for low Koenigsberger ratios, a common scenario in sedimentary rocks), and the magnetic remanence (whose orientation is fairly constant in remagnetised basins) of the different sedimentary units. The comparison with direct measurements of magnetic susceptibility (in the field and in the laboratory) provided a successful double-check. The cyclostratigraphic analysis of magnetic profiles of this 6 km-thick series indicates the existence of cycles of 405 kyr (long eccentricity) and 100–125 kyr (short eccentricity), as well as other lower and higher frequency cycles. Cycles with similar, but slightly different, periodicities are the result of different sedimentation rates (mean of ∼0.2 mm/yr, with values ranging between ∼0.1 and ∼0.36 mm/yr). These results provide and indirect method for dating the basin fill, between the Tithonian–Berriasian boundary and the basalmost Albian (∼143.2–∼112.6 Ma), and impose new constraints for basin evolution. The results obtained open a promising field for quick and reliable determination of magnetic properties and cyclicity in thick sedimentary sequences.
000132445 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E32-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-108705GB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-108753GB-C22
000132445 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000132445 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000132445 700__ $$aMuñoz, Arsenio
000132445 700__ $$aTella, Alberto
000132445 700__ $$0(orcid)0000-0002-9130-117X$$aLiesa, Carlos L.$$uUniversidad de Zaragoza
000132445 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000132445 773__ $$g154 (2024), 105736 [26 pp.]$$pCretac. res.$$tCretaceous Research$$x0195-6671
000132445 787__ $$tMagnetic surveying as a proxy for defining cyclicity in thick sedimentary fillings: application to the Cretaceous Cameros Basin (N Spain)$$w10.17632/vm8kbhc7s6.1
000132445 8564_ $$s16536946$$uhttps://zaguan.unizar.es/record/132445/files/texto_completo.pdf$$yVersión publicada
000132445 8564_ $$s2720787$$uhttps://zaguan.unizar.es/record/132445/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000132445 909CO $$ooai:zaguan.unizar.es:132445$$particulos$$pdriver
000132445 951__ $$a2024-03-11-09:51:29
000132445 980__ $$aARTICLE