... A Chemically Decoupled Nucleus and Structure of the Nuclear Region in the S0 Galaxy NGC 4036¶ O. K. Sil'chenko1 * and V. V. Vlasyuk2 2 Sternberg Astronomical Institute, Universitetskioe pr. ... The unresolved nucleus of NGC 4036 is shown to be chemically decoupled: [Mg/Fe] = +0.3 at the very center, whereas in the immediate vicinity of its nucleus, this ratio abruptly drops to +0.1 and does not change further along the radius. ... However, the major-axis turn within R < 5 should be considered real. ...