The first studies of carbonated mineral waters in the vicinity of Bakhchisarai in Crimea in 1916-1917 were conducted by Academician V. A. Obruchev and hydrogeologist of the Tauride Zemstvo Peddakas. Unfortunately, these works were not completed, and V. A. Obruchev's article "The Burun-Kaya Mineral Spring Near Bakhchisarai as a Future "Crimean Resort"" was ignored. Meanwhile, Academician V. A. Obruchev was the first to establish carbonated mineral waters in Crimea. According to his data, the said mineral spring is confined to tectonic cracks of north-eastern extension, intersecting the Upper Cretaceous white marls. Referring the reader to the article, we will cite from it some of the most important data for our topic. V. A. Obruchev writes that the Burun-Kaya spring does not dry up even in the driest years when he helped out the entire surrounding population with water, because other nearby sources, fed by groundwater, dried up.
In our report in January 1951 at a conference at the Central Institute of Balneology in Moscow and in an article published in the Notes of the Leningrad Mining Institute, the question was raised about the presence of carbonated mineral waters in Crimea and the need to study them to expand the resort and sanatorium base of Crimea. The work of 1951 completely confirmed the forecasts made. The presence of carbonated waters to the north of the city of Kerch, which we had noted based on the analysis of gas jets in 1950, was completely confirmed in the summer of 1951 by determining the free carbon dioxide in the water of some springs. Within the field of carbonated jets to the west of the city of Kerch, the content of free carbon dioxide in the springs of the Seit-Eli group was determined to be from 577 to 1180 mg/l. Samples for analysis were taken by S. V. Albov. The analysis was carried out by V. A. German in the laboratory of the Crimean Geological Department. Consequently, in addition to the carbonated spring of Kayaly-Sart, we can also talk about about the carbon dioxide springs of the Seit-Elin group.
