Leyla-Tepe culture
The Leyla-Tepe culture () of the South Caucasus belongs to the Chalcolithic era. It got its name from the site in the Agdam district of modern day Azerbaijan. Its settlements were distributed on the southern slopes of Central Caucasus, from 4350 until 4000 B.C. Monuments of the Leyla-Tepe were first located in the 1980s by I. G. Narimanov, a Soviet archaeologist. In the 2000s, attention to the monuments was inspired by the risk of their damage due to the construction of the Baku–Tbilisi–Ceyhan pipeline and the South Caucasus pipeline. Characteristics and influences 

The Leyla-Tepe culture is also attested at Boyuk Kesik in the lower layers of this settlement. The inhabitants apparently buried their dead in ceramic vessels. Similar amphora burials in the South Caucasus are found in the Western Georgian Jar-Burial culture, that is mostly of a much later date. Jar burials are attested in many parts of the world as early as 4500 BC. The ancient Poylu II settlement was discovered in the Agstafa District of modern day Azerbaijan during the construction of the Baku-Tbilisi-Ceyhan pipeline. The lowermost layer dates to the early fourth millennium BC, attesting a multilayer settlement of Leyla-Tepe culture. Among the sites associated with this culture, the Soyugbulag kurgans or barrows are of special importance. The excavation of these kurgans, located in Kaspi Municipality, in central Georgia, demonstrated an unexpectedly early date of such structures on the territory of Azerbaijan. They were dated to the beginning of the 4th millennium BC. The culture has also been linked to the north Ubaid period monuments, in particular, with the settlements in the Eastern Anatolia Region (Arslantepe, Coruchu-tepe, Tepechik, etc.). Other sites belonging to the same culture in the Nagorno-Karabakh valley area are Chinar-Tepe, Shomulu-Tepe, and Abdal-Aziz-Tepe. The settlement is of a typical Western-Asian variety, with the dwellings packed closely together and made of mud bricks with smoke outlets. It has been suggested that the Leyla-Tepe were the founders of the Maykop culture. According to Catherine Marro (2022), Maykop/Majkop culture "is certainly connected with the Leyla Tepe complex". An expedition to Syria by the Russian Academy of Sciences revealed the similarity of the Maykop and Leyla-Tepe artifacts with those found in 1988–2000 while excavating the ancient city of Tel Khazneh I, dating from the 4th millennium BC. Leyla-Tepe pottery is very similar to the 'Chaff-Faced Ware' of the northern Syria and Mesopotamia. It is especially well attested at Amuq F phase. Similar pottery is also found at Kultepe, Azerbaijan. Galayeri
In 2012, the important site of Galayeri, belonging to the Leyla-Tepe archaeological culture, was investigated. It is located in the Qabala District of modern day Azerbaijan. Galayeri is closely connected to early civilizations of Near East. Structures consisting of clay layers are typical; no mud-brick walls have been detected at Galayeri. Almost all findings have Eastern Anatolian Chalcolithic characteristics. The closest analogues of the Galayeri clay constructions are found at Arslantepe/Melid VII in Temple C.

Metalwork
The development of Leyla-Tepe culture in the Caucasus marked the early appearance of extractive copper metallurgy. According to research published in 2017, this development that occurred in the second half of the 5th millennium BC preceded the appearance of metallurgy in Mesopotamia. In recent past, the development of copper metallurgy in the Caucasus was attributed to migrants from Uruk arriving around 4500 BCE, or perhaps rather to the pre-Uruk traditions, such as the late Ubaid period, and Ubaid-Uruk phases. Leyla-Tepe metalwork tradition was seen as very sophisticated right from the beginning, and it featured many bronze items. Later, the quality of metallurgy declined somewhat with the advent of the Kura–Araxes culture. Only during the latter stages of Kura–Araxes culture, there was again an improvement in quality. See also
Kura–Araxes culture
Yarim Tepe, Iraq

References

Sources 
 Р. М. Мунчаев, Н. Я. Мерперт, Ш. Н. Амиров ТЕЛЛЬ-ХАЗНА I. Культово-административный центр IV–III тыс. до н. э. в Северо-восточной Сирии. Издательство «Палеограф». Москва 2004. Najaf Museyibly, Archeological Excavations Along the Route of the Baku–Tbilisi–Ceyhan Crude Oil Pipeline and the South Caucasus Gas Pipeline, 2002–2005
Veli Bakhshaliyev 2021, Archaeological investigations at Nakhchivan Tepe. in ON SALT, COPPER AND GOLD: The origins of early mining and metallurgy in the Caucasus, Catherine Marro and Thomas Stöllner (ed.) 1980s archaeological discoveries
Archaeological cultures of the Caucasus
Chalcolithic cultures of Asia
Archaeological cultures in Georgia (country)