{"refrec":{"BRefID":238200,"RR":"<b>Da Silva, A.-C.; De Vleeschouwer, D.; Boulvain, F.; Claeys, P.; Fagel, N.; Humblet, M.; Mabille, C.; Michel, J.; Sardar Abadi, M.; Pas, D.; Dekkers, M.J.</b> (2013). Magnetic susceptibility as a high-resolution correlation tool and as a climatic proxy in Paleozoic rocks - Merits and pitfalls: Examples from the Devonian in Belgium. <i>Mar. Pet. Geol. 46</i>: 173-189. <a href=\"http://dx.doi.org/10.1016/j.marpetgeo.2013.06.012\" target=\"_blank\">dx.doi.org/10.1016/j.marpetgeo.2013.06.012</a>","BEntID":229887,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Pet. Geol. 46</i>: 173-189. <a href=\"https://dx.doi.org/10.1016/j.marpetgeo.2013.06.012\" target=\"_blank\">https://dx.doi.org/10.1016/j.marpetgeo.2013.06.012</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Da Silva, A.-C.; De Vleeschouwer, D.; Boulvain, F.; Claeys, P.; Fagel, N.; Humblet, M.; Mabille, C.; Michel, J.; Sardar Abadi, M.; Pas, D.; Dekkers, M.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Da Silva, A.-C. <i>et al.</i>","Englishabstract":"Low-field magnetic susceptibility (<i>?</i><sub>in</sub>) measurements are quick and sensitive enabling the creation of high-resolution records; making <i>?</i><sub>in</sub> an attractive correlation tool and a proxy for paleoclimate and paleoenvironments. In geologically young material – foremost in Cenozoic sediments – <i>?</i><sub>in</sub> belongs to the geoscientist's toolkit. However, <i>?</i><sub>in</sub> is a convolved signal and may reflect other processes than the often implicitly inferred depositional conditions. Diagenesis, remagnetization and low-grade metamorphism, can potentially obscure the original, depositional, <i>?</i><sub>in</sub> signal. This aspect is particularly important when interpreting <i>?</i><sub>in</sub> records from Paleozoic rocks. Here, we review data obtained from a large sample collection of Middle to Upper Devonian sections in Belgium. Comparison of <i>?</i><sub>in</sub> trends with paleoenvironmental indicators (facies) and with detrital input proxies (Zr, Th, Ti, Al) allowed to assess the persistence of depositional trends. Furthermore, the <i>?</i><sub>in</sub> signal was deconvolved into its dominant mineralogical contributions with the help of magnetic-property analysis. The main results are pointing to a magnetic signal dominated by fine-grained magnetite, of which paleomagnetic analysis indicated a formation during Carboniferous remagnetization. This prompts a potentially strong influence of post-depositional processes and it complicates the interpretation of <i>?</i><sub>in</sub> records in terms of depositional environments. However, in most of the sections, there is a relatively good relationship between <i>?</i><sub>in</sub> trends and facies evolution and between <i>?</i><sub>in</sub> and geochemical proxies for detrital inputs. This indicates that the newly formed magnetite grains would at least partly remain where they are formed, and this allows a relative preservation of the original signal, despite the strong influence of diagenesis. Two sections show a stronger impact of diagenesis, where for about half of these sections, the primary, depositional information is lost. The Eifelian–Givetian Monts de Baileux section was selected for time-series analysis of the <i>?</i><sub>in</sub> series. The Average Spectral Misfit (ASM) method is applied to explicitly evaluate the null hypothesis of no orbital signal and in this section, there is 99.05% chance that the MS signal is reflecting an orbital imprint.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Magnetic susceptibility as a high-resolution correlation tool and as a climatic proxy in Paleozoic rocks - Merits and pitfalls: Examples from the Devonian in Belgium","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Magnetic susceptibility; Paleozoic; Paleoenvironment; Paleoclimate;Diagenesis; Magnetic minerals; Orbital forcing","OtherDescriptors":null,"Notes":null,"AnaPub":2013,"MonPub":null,"DateUpdate":"2015-10-29","DateCreate":"2014-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000324223400011","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.marpetgeo.2013.06.012"},"refs":null,"anarec":{"AnaID":238200,"PubliDate":2013,"Pagination":"173-189","XtraPublOfAnaID":null,"ISBN":null,"Volume":"46","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43351,"SerRR":"Marine and Petroleum Geology. 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