The
Kissing Cocks According to scientists, Hạ Long Bay has experienced at
least 500 million years in various geological states of ontogeny, marine
transgression and marine regression. During the Ordovician and Silurian
periods (500-410 million years ago), Hạ Long Bay was deep sea. During
the Carboniferous and Permian periods (340-250 million years ago), Hạ
Long Bay was at shallow sea level.
Karts geomorphology value Due to a
simultaneous combination of ideal factors such as thick, pale, grey, and
strong limestone layers, which are formed by fine-grained materials;
hot and moist climate and slow tectonic process as a whole; Hạ Long Bay
has had a complete karts evolution for 20 million years. There are many
types of karts topography in the bay, such as karts field.
Timeline of geologic evolution Some of
the most remarkable geological events in Hạ Long Bay’s history in the
last 1,000 years, include the advance of the sea, the raising of the bay
area, strong erosion that has formed coral, and, pure blue and heavily
salted water. This process of erosion by seawater has deeply engraved
the stone, contributing to its fantastic beauty. Present-day Hạ Long Bay
is the result of this long process of geological evolution that has
been influenced by so many factors.
Due to all these factors, tourists
visiting Hạ Long Bay are not only treated to one of the natural wonders
of the world, but also to a precious geological museum that has been
naturally preserved in the open air for the last 300 million years.
