The body was buried with copper which gave the mummy a slightly greenish tinge to it as well as other spices and metal shavings. The combination of chemicals helped preserve the body, however, the cold and permafrozen ground was what helped keep the body intact.
After the remains were found, the mummy was transported to the Moscow Museum of Archeology for further inspection and research about the mummy's life. After being hidden away from the general public for years and the area around being checked for further artifacts the body was passed for public viewing in specialized containment.
The result of the extensive research was such that the Soldier had to have taken many hits to the chest in his life and most likely died from a collapsed lung during strenuous activity. Some of the bones showed post-mortem fractures which are believed to stem from the cold ground shifting. Other than some shifts and changes from liquids expanding when frozen the body was virtually perfectly intact. The other soldiers that were buried alongside were killed with a blow to the back of the head as bodyguards to protect and serve the soldier in the afterlife.
Additional Information can be accessed on the official website of the Moscow Museum of Archeology.
All references and external sources may be found on the official website of Moscow Museum of Archeology. Expedition and research funded by the Russian Federation.