Petromagnetism and palaeomagnetism of Quaternary loess-soil sediments of Vyazivok section (Dnieper Lowland)

Magnetostratigraphy and magnetic susceptibility of the best developed Pleistocene loess-palaeosol sequences of Ukraine: implications for correlation and proposed chronostratigraphic models

“…We note here an in cor rect ci ta tion of our pre vi ous study (Bakhmutov et al, 2017) in the re cent pa per of Bradák et al (2019), in which the chronostratigraphy of the Roksolany section af ter Bogucki et al (2013), in clud ing cor re la tion be tween palaeosol PK 4 and MIS 3, was mis tak enly as signed en tirely to us, al though we cited all sources cor rectly, and noted pre vi ously that the mod ern stra tig ra phy of the Roksolany sec tion most prob a bly is in cor rect (Hlavatskyi et al, 2016b;Hlavatskyi and Bakhmutov, 2018a, b). There fore, to avoid fur ther con fu sion, we need clar ify crit i cal chronostratigraphic is sues in this study.…”

“…New palaeomagnetic re sults from the Vyazivok sec tion were pro vided re cently in Hlavatskyi et al (2016b). The MBB was de tected at a depth of 56.2 m within the lower Shyrokyne palaeosol sh 1 (ac cord ing to the strati graphic sub di vi sion of Matviishina et al, 2001), which is close to the pre vi ous palaeomagnetic in ter pre ta tion of Vigilyanskaya (2001).…”

“…The ini tial data from the Roksolany sec tion (Tretyak, 1980) was aban doned by Heller et al (1996) and re vised re cently by Bakhmutov and Hlavatskyi (2014). Ex pected po si tion of the MBB in the Vyazivok sec tion (Veklich et al, 1984b) was re fined by Vigilyanskaya (2001) and supported later by Hlavatskyi et al (2016b). To the left of each lithological col umn the strati graphic no men cla ture pro posed by this study is shown (see text for fur ther ex pla na tion).…”

“…Pre lim i nary re sults of the palaeomagnetic stud ies of the Vyazivok sec tion were given in Hlavatskyi et al (2016b). In order to re fine the po si tion of the MBB, we now fo cus on the low ermost part of the pro file.…”

“…In par tic u lar, du pli cate spec i mens from two neigh bour ing ex po sures (V5 and V6) rep re sent ing the Pryazovya, Shyrokyne, Illichivsk (il) and Kryzhanivka (kr) units were treated. Be sides 54 spec i mens from the units listed above, al ready in ves ti gated by Hlavatskyi et al (2016b), we add new data from 48 de mag ne tized spec i mens be low 51 m depth.…”