Dating tashkent geologist

He was born in Khwarazm, then part of the Abbasid Empire (modern Khiva, Uzbekistan).

He was also one of the earliest leading exponents of the experimental scientific method, and was responsible for introducing the experimental method into mechanics and mineralogy, a pioneer of comparative sociology and experimental psychology, and the first to conduct elaborate experiments related to astronomical phenomena.Kulbulak is an open-air site (41°00′31″N–70°00′22″E), c.1040m asl, at the foot of the Chatkal range, on the western edge of the Tian-Shan mountains, a few kilometres from the town of Angren (Akhangaran valley, Tashkent region, Uzbekistan; Figure 1). According to Kasymov & Grechkina (1994), the stratigraphy of Kulbulak corresponds to a long sequence that spans the Lower to Upper Pleistocene; it contains 49 archaeological horizons corresponding (from bottom to top) to 22 ' Acheulean' levels, 24 Mousterian levels and three Upper Palaeolithic levels.Then, by assessing the isotope concentrations of rubidium and strontium, scientists can back-calculate to determine when the rock was formed.The three isotopes mentioned can be used for dating rock formations and meteorites; the method typically works best on igneous rocks. The data from radioisotope analysis tends to be somewhat scattered.