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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Constraints and promises of earthquake-triggered landslides discriminationстатья
- Автор: Strom A.
- Сборник: 4th International INQUA Meeting on Paleoseismology, Active Tectonics and Archeoseismology (PATA), 9-14 October 2013, Aachen, Germany
- Год издания: 2013
- Место издания: Aachen, Germany
- Первая страница: 267
- Последняя страница: 270
- Аннотация: Confident and well-grounded discrimination of those prehistoric landslides that had been triggered by earthquakes from those of different origin is one of the most controversial paleoseimological issues. Neither volume of failure, nor shape of rockslide deposits, nor its mobility can prove seismic origin due to prevailing role of gravity force in the landslides' formation, i.e. the potential energy of rock massif resting on slope is several orders larger than the kinetic energy that could be supplied to this massif by seismic shaking. Most widely applied discrimination methods based on landslides simultaneity and on numerical back analysis of the collapsed slope stability have some constraints that could make univocal solution questionable, if not impossible. Additional promising way to justify seismic origin of large rockslides could be based on identification of spatially distributed sedi-mentary features indicating seismic shaking. The best conditions for such analysis are in the lacustrine environment associated with river-damming landslides, which allows close timing of spatially distributed minor features with main river-damming event.
- Добавил в систему: Стром Александр Леонидович