|
ИСТИНА |
Войти в систему Регистрация |
Интеллектуальная Система Тематического Исследования НАукометрических данных |
||
Video observations inside conduits of erupting geysers in Kamchatka, Russia, and their geological framework: Implications for the geyser mechanism. Geology, 41: 387-390. Текст в PDFстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Belousov A., Belousova M., Nechayev A.
- Журнал: Geology
- Номер: 41
- Год издания: 2013
- Издательство: Geological Society of America
- Местоположение издательства: United States
- Первая страница: 387
- Последняя страница: 390
- DOI: 10.1130/G33366.1
- Аннотация: Several models have been proposed to explain periodic eruptions of geysers. In essence,the models all use two principally different types of geyser plumbing configurations, dealingwith two different physical mechanisms. Here we present data on direct video observationsof interior conduit systems for four erupting geysers in Geyser Valley, Kamchatka, Russia.The video footage reveals highly contorted water-filled conduits that periodically dischargevoluminous parcels of steam bubbles during eruptions. These observations do not favor themodels that use the most popular long vertical conduit type of plumbing, where eruptions arecaused by sudden flashing of superheated water into steam. In contrast, our data fit the modelsusing the less-explored type of plumbing, where pressurized steam gradually accumulates inan underground cavity (bubble trap) and periodically erupts through a water-filled, highlycontorted conduit with the configuration of an inverted siphon. Hydrodynamic calculationsshow that such a plumbing configuration produces periodic eruptions when the volume of thebubble trap exceeds the volume of the conduit connecting it to the ground surface. Conduitsof the studied geysers were developed from erosion by ascending geothermal water in land-slide deposits; chaotic internal structures of the deposits facilitated the formation of conduitsystems with highly contorted configurations of the bubble trap type. We suggest that geyserfields are rare on Earth because they require the combination of hydrothermal discharge andgeological formations having specific mechanical properties and structures (that facilitate thegeneration of highly contorted conduits)
- Добавил в систему: Белоусов Александр Борисович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | geyser.pdf | geyser.pdf | 433,0 КБ | 25 сентября 2022 [belousov1956] |