Laoshan features 50 words.

Since the Sinian Lvliang Movement, Laoshan Mountain has become a fold, and this huge granite body of Laoshan Mountain was formed in Cretaceous.

According to the late Yanshanian movement from about 68 million to 6.5438+0.3 million years, the hot molten magma rising in the deep crust condensed several kilometers underground. The rocks are fleshy red and white, and minerals crystallize into particles. Geologically, it was named "Laoshan Granite", but it did not emerge from the ground when it was born.

Since the Cenozoic era, the crust has risen, and the rocks covered on it have been gradually eroded by years of wind, frost, rain, snow and lasting running water, only to expose granite. In the middle Cenozoic, it began to present its present outline, which has been 2 million years since. The face of Laoshan Mountain was in the late Quaternary, that is, in the vicissitudes of recent tens of thousands of years. ?

Among the landforms of Laoshan Mountain, the most distinctive ones are towering peaks, towering peaks and various strange stones. Laoshan landform can be roughly divided into two layers according to altitude. The upper layer is a jagged mountain peak with an altitude of nearly 1000m, which was formed in the last ice age of 1000 years ago.

The natural environment is very bad. The seawater invaded many times in Quaternary has retreated to Okinawa, and the Yellow Sea and Bohai Sea have become dry and cold wasteland. At this time, the temperature difference between day and night, winter and summer is very large. Under the action of cold and freezing, granite quickly undergoes mechanical weathering, and large chunks of rock crack, forming jagged and magnificent peaks.