Четверг, 21.09.2017, 08:03Главная | Регистрация | Вход

Меню сайта

Форма входа

Приветствую Вас Гость!

Поиск

Статистика


Онлайн всего: 1
Гостей: 1
Пользователей: 0
Каталог сайтовКаталог сайтов
Главная » Каталог сайтов » Метеоритные кратеры

A Different Kind of Climate catastrophe
http://craterhunter.wordpress.com/a-different-kind-of-climate-catastrophe/ 22.02.2012, 22:29
"The proposition that an exceptionally large comet has been undergoing disintegration in the inner planetary system goes back over 40 years (Whipple 1967), and the evidence for the hypothesis has accumulated to the point where it seems compelling. Radio and visual meteor data show that the zodiacal cloud is dominated by a broad stream of largely cometary material which incorporates an ancient, dispersed system of related meteor streams. Embedded within this system are significant numbers of large NEOs, including Comet Encke. Replenishment of the zodiacal cloud is sporadic, with the current cloud being substantially overmassive in relation to current sources. The system is most easily understood as due to the injection and continuing disintegration of a comet 50-100 km in diameter. The fragmentation of comets is now recognized as a major route of their disintegration, and this is consistent with the numerous sub-streams and co-moving observed in the Taurid complex. The probable epoch of injection of this large comet, ~20-30 kyr ago, comfortably straddles the 12.9 kyr date of the Younger Dryas Boundary.
Категория: Метеоритные кратеры | Добавил: smerdyachee
Переходов: 396
Всего комментариев: 0
Добавлять комментарии могут только зарегистрированные пользователи.
[ Регистрация | Вход ]
Copyright MyCorp © 2017 | Конструктор сайтов - uCoz