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Chapter 11. «Geography of Cave Glaciation»статья Глава в книге
- Автор: Mavlyudov B.R.
- Сборник: Ice caves. Eds. Persǫiu A., Lauritzen S.-E
- Глава в коллективной монографии
- Год издания: 2018
- Место издания: Elsevier Amsterdam, Oxford, Cambridge
- Первая страница: 209
- Последняя страница: 220
- Аннотация: To understand the glaciation of caves, it is important to know the principles of how they form and what they depend on, specifically, (1) the cavities' morphology, (2) the climate of the area in which the caves are located, and (3) the temperature of the rocks in the massifs that contain the cavities. The temperature of an average rock mass can differ from the mean annual temperature (MAT), from 0°C to 7°C, increasing deep inside continents (the average is about 3°C). Analysis of available data for caves with glaciation in different regions allowed the creation of the cave glaciation index (CGI or K). The CGI shows the probable degree at which a rock mass cools because of winter air temperatures. Cave glaciation is possible in areas where the CGI has positive values. The following CGI gradations reflect the character of the cave glaciation: where the CGI values are from 0 to 0.25, only seasonal cave glaciation develops; where the CGI changes from 0.25 to 1.0, permanent glaciation in separate caves develops, except for seasonal ones; where the CGI exceeds 1.0, constant glaciation of the majority of the caves is characteristic. Such principles have allowed people to map cave glaciation in areas on all continents. Keywords: Ice caves, Cave glaciation factor, Map of cave glaciation https://doi.org/10.1016/B978-0-12-811739-2.00012-7
- Добавил в систему: Мавлюдов Булат Рафаэлевич