SikhoteAlin

Sikhote-Alin is a mountain range in the Russian Far East, running along the eastern edge of Primorsky Krai and extending into a portion of Khabarovsk Krai near the Sea of Japan. The range is characterized by rugged, forested terrain with numerous rivers and valleys. It serves as a major biogeographical area, hosting a diverse fauna including the Siberian tiger and a variety of birds, mammals, and plant communities. The region has been a focus of ecological and geological studies.

Geology and geography: The range comprises ancient rocks and has been shaped by tectonic forces and later volcanic activity. Its climate is temperate with maritime influences, contributing to lush forests in the coastal zones and montane habitats at higher elevations.

Meteorite event: On 12 February 1947, a large meteoric fireball known as the Sikhote-Alin meteorite shower entered the atmosphere over the region, producing a brilliant display and sonic booms. It fragmented and distributed a large number of iron meteorite fragments across Primorsky Krai, with total recovered mass estimated in the tens of tons. The meteorite is classified as an iron meteorite, group IIAB, and has been a major source of material for meteoritic research and museums.

Legacy: The event is one of the best-documented meteorite falls in history, contributing to the study of meteoroid fragmentation, atmospheric entry, and iron meteorite structure. The Sikhote-Alin area continues to be studied for its natural history and remains notable for its wilderness and biodiversity.