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Biological Properties of Glacial Iceстатья
- Авторы: Vasil'chuk Yu K., Vasil'chuk A.C.
- Сборник: Types and Properties of Water, Encyclopedia of Life Support Systems (EOLSS)
- Том: 2
- Глава в коллективной монографии
- Год издания: 2006
- Место издания: Developed under the Auspices of the UNESCO, Eolss Publishers Paris
- Первая страница: 295
- Последняя страница: 318
- Аннотация: The main biologic property of the ice is the preserving of biologic subjects. Biologic properties of ice can be distinguished by inclusion of biologic subjects and biologically active substations. In the future glacier and ground ices might be used as a source preserving genetic material such as pollen and spores, seeds, microbes and also preserving carcasses of prehistoric animals. The ice subsurface constitutes special niche. Rich algae flora is growing at interface of snow and ice on broken and drifting ice floe in Antarctic and Arctic. Pollen and spores have been determined in number of key-cryospheric subjects, such as mountain glaciers, Arctic Ice caps in snow cover marine and river ice. Pollen and spores are relatively abundant in glacier ice, but in pollen concentration in polar snow cover is very low. Pollen and spores are common in ice bodies of different origin in permafrost areas. Enzymes may be classified as biologically active substance in the ice. Proteolytic activity is activity of albumen splitting; amylolytic activity is activity of starch splitting. These kinds of enzymatic activity may be determined in sea water, bay, rivers, season melted layer and also all variety of surface and ground ice, such as segregated ice, ice wedges, ice sheets, ice-floes, etc. Numerous and various viable microorganisms such as: prokaryotes, green algae, cyanobacteria, actinomicetes, fungi and yeast are found in the snow and pure marine, river, lake and ground ice. The findings of ancient people are very rare but of great interest because they give us the possibility to obtain valuable information about ancient people life. Mummies were discovered in mountain glaciers of Alps, Andes and British Columbia. Mammoth fauna founds are also very informative and interesting. More than 10 findings of fossils mammoth’s whole carcasses have been discovered in Siberian permafrost.
- Добавил в систему: Васильчук Алла Константиновна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Vasilchuk_Vasilchuk_2006_BIOLOGICAL_PROPERTIES_OF_GLACIAL_I… | Vasilchuk_Vasilchuk_2006_BIOLOGICAL_PROPERTIES_OF_GLACIAL_I… | 498,0 КБ | 6 ноября 2016 [AllaVasilchuk] | |
| 2. | Vasilchuk_Vasilchuk_2006_BIOLOGICAL_PROPERTIES_OF_GLACIAL_I… | Vasilchuk_Vasilchuk_2006_BIOLOGICAL_PROPERTIES_OF_GLACIAL_I… | 624,0 КБ | 6 ноября 2016 [AllaVasilchuk] |