curved bronze knives with animal pommel. 12th-11th century BCE. Such knives were the result of contacts with the northern people of the Mongolian steppe. The metallurgy of the Karasuk culture may have derived from the earlier
Seima-Turbino tradition. It expanded on this tradition, and became the core of a regional hub in metallurgy, sometimes called the "East Asian Metallurgical Province". Seima-Turbino had a westward expansion, encountering the
Abashevo and
Sintashta cultures during the 2200-1700 BCE period. On the contrary, the expansion of the Karasuk metallurgical culture was eastward. Karasuk styles were copied throughout Central and Eastern Asia, reaching
China where numerous bronze objects on the Karasuk model have been excavated. In particular the royal complex of the
Anyang Cemetery from the 13-11th centuries BCE during the
Shang dynasty period is known for numerous such imitations. It is thought that these metallurgical innovations from the Karasuk culture were transmitted by steppe nomads, within a context of rather conflictual relations between China and its northern neighbours. The Shang mainly imitated the curved one-edged knives with animal handles, and placed them in their tombs among other bronze paraphernalia. Altogether, these influences travelled over a distance of more than 3,500 kilometers, from the Sayan-Altai region to the heart of ancient China beyond the
Yellow River. Weapons of the contemporary
Deer stones culture, as seen in their petroglyphs, are generally derived from those of the Karasuk culture, and belong to the Karasuk typology. File:Karasuk culture. Animal-headed knife with curved blade.png|Karasuk culture. Animal-headed knife with curved blade. File:Karasuk culture. Horse-headed knife.png|Karasuk culture. Horse-headed knife. File:Karasuk culture. Knife with ring.png|Karasuk culture. Knife with ring. File:Karasuk culture. Animal-headed knife.png|Karasuk culture. Animal-headed knife. Many bronze blades of the
Shang dynasty (13th-11th centuries BCE) and
Zhou dynasty were derived from Karasuk designs. File:Karasuk vs Shang horned animal blades 13th-11th century BCE.jpg|Karasuk vs Shang horned animal blades 13th-11th century BCE. File:Karasuk knives vs Shang Yinxu knives.jpg|Karasuk blades vs
Shang dynasty Yinxu blades. File:Karasuk culture blades vs Shang-Zhou blades.png|Karasuk culture blades vs Shang-Zhou blades. ==Genetics==