Andrey Chitalin

   

Deputy General Director for Science and Chief Geologist
IGT Group (IGT Service)

Candidate of Geological and Mineralogical Sciences, specializing in geotectonics, senior researcher, and member of the Society of Economic Geologists (SEG), and International Association of Structural Geologists (IASG).

He was awarded the “Field Discoverer” and “Excellence in Subsoil Exploration” badges.

He worked in different regions of Russia and abroad, and was engaged in geological surveying, prospecting, assessment and exploration of ore deposits.

He is a specialist in structural analysis. He has extensive experience studying and searching for porphyry copper and gold deposits.

For 20 years he taught various geological disciplines and conducted educational practices for students at the Geological Faculty of Moscow State University. M.V. Lomonosov.

Has more than 100 scientific publications


DigiTech session 3 - Advanced Prospecting methods: the Key to Future Discoveries in Kazakhstan
10 April 2025 / 14:00 - 15:30 | Sary Arka 3

Using Earth Remote Sensing (ERS) data in geological targeting and prospecting for ore deposits. Pros and cons, illusions and realities.

Analysis of multispectral space images is widely used in the search for ore deposits. Specialists of the IGT Group (Institute of Geotechnology): IGT-Service LLC, IGT Sky-Group LLC, IGT Overseas LLP have extensive experience in processing and using remote sensing materials in geological targeting and forecasting and prospecting work in various regions of the Russian Federation and abroad.
The report shows examples of identifying spectral anomalies of various geological nature, discusses the criteria for identifying "ore" anomalies and rejecting false anomalies. The forecasting and prospecting efficiency of multispectral analysis is discussed, as well as the possibilities and limitations of its application in regions characterized by varying degrees of forestation and exposure of bedrock.
The IGT Group is actively developing the direction of digital geological targeting and increasing the probability of predicting the spread of ore mineralization zones. The GeoTarget software package developed by our specialists consists of several basic modules. The SOVA (Spectral-Optical Vision Assistant) software module is used for automatic detection of geological multispectral anomalies. Multispectral analysis is combined with the results of automatic lineament analysis of space images and digital elevation models (DEMs) performed using the Lineament+ module, which expands the functionality of the well-known LESSA program.
A prerequisite for the effective use of remote sensing data is a comprehensive analysis of the geological environment where the anomalies occur. This analysis is performed only by an experienced geologist-expert. Compliance with this requirement is a key factor in reducing the number of possible misconceptions when assessing the prospects of the studied area.
When studying some ore objects, we found that anomalies of the same spectral indices can have different origins; their unambiguous connection with wallrock metasomatites is not always established. The identification of wallrock metasomatites by spectral indices is of a presumptive, probabilistic nature.
All identified “ore” spectral anomalies and identified metasomatites must be studied in field routes using IR spectrometry methods to clarify the mineral composition of metasomatites and adjust open libraries of spectral mineral indices.