Applied Physics and Mathematics Annotation << Back THE PROBLEM OF THE AGE OF THE EARTH AND THE ANRI EFFECT T.G. SAMKHARADZE, O.B. KHAVROSHKIN, V.V. TSYPLAKOV The age of the Earth, determined by the state of radioactive elements (primarily uranium, thorium, etc.), also depends on the flux of solar neutrinos, so it is important to evaluate and more accurately investigate the process of neutrino passage through a radioactive medium. Such an important study is in its initial stage, but the results obtained are of a certain scientific interest. The most relevant are the works where the anomalous neutrino radioisotope absorption (ANRI effect) and, most importantly, the capture cross section are studied. Keywords: solar neutrinos, radioactive geological structures, ANRI effect. DOI: 10.25791/pfim.03.2023.1259 Pp. 24-33.