12 марта, 2008

На поверхности Титана

На поверхности Титана туман. Прямая видимость 600 метров.

History of tectonics

Ha Long Bay is a UNESCO World Heritage site located in Vietnam. The bay features thousands of limestone karsts and isles in various sizes and shapes. The bay consists of a dense cluster of 1,969 limestone monolithic islands, each topped with thick jungle vegetation, which rise spectacularly from the ocean. Several of the islands are hollow, with enormous caves.

Scientists say that Halong bay has experienced at least 500 million years in the various geological states of orogeny, marine transgression and marine regression. During the Ordovician and Silurian periods (500-410 million years ago), Halong bay was deep sea. During the Carboniferous and Permian periods (340-250 million years ago), Halong Bay was at shallow sea level.

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