44 resultados para Atlanta, Georgia.
Resumo:
Limno-glacial deposits 110 cm in thickness in the upper alpine belt have been investigated. It is established that during the Yuanakhchiri period of glaciation in the region under study a glacial cirque was situated at an altitude of 2750 m a.s.l. After the glacier retreated, a lake was formed in its bed which existed till the second noticeable cooling in the second half of SA2 (1600-1500 years ago).
Resumo:
The rock mass of fluvial and fluvioglacial deposits of the Late Holocene has been studied at the altitude of 1830 m a.s.l. using the palynologic, carpologic, geomorphologic, and geochronologic methods. It was ascertained that in the mid-Subatlantic period the area of the present-day beech elfin woodland was occupied by a belt of alpine meadows. Thus, the lower border of alpine meadows ran 370-400 m lower than the recent level, pointing to a rather significant cooling of the climate that occurred from ca 2nd cent. A.D.