EA-AOMORI-KIYOU30-YUKO-SEKIFU-FIG7 - archaeological find
Aomori Kiyou 30 Figure 7 perforated polished-stone-axe / stone-product set
Japan - Hokkaido comparative corpus; Aomori Kiyou 30 Fig. 7 and Nakano B crosswalk - East Asia
Function not recorded Candidate only
有孔石斧 Japanese
Source term: 有孔石斧; 穿孔を有する磨製石斧; 石製品; 篦状垂飾; 垂飾; 環状石斧 comparison
有孔石斧 (yūkō sekifu): 'perforated stone axe'
Five perforated polished 'axes' from northern Tōhoku and southern Hokkaido — Nakano B, Shimotashiro and Uriba — appear together in an Aomori research bulletin. Their report entries place the Nakano B pieces in specific grid squares and layers. The materials disagree agreeably: tuff at 8.2 centimetres, serpentinite at 5.1 and 4.9, and green tuff in a fragment — the same top-holed thin-blade format repeated in different stones, several with rubbing recorded at the hole. The perforated-axe label covers them all; what it does not explain is why an 'axe' should hang from a cord by its head.
- Object
- 有孔石斧; 穿孔を有する磨製石斧; 石製品; 篦状垂飾; 垂飾; 環状石斧 comparison. Specimens/count: five illustrated Kiyou Fig.7 objects; Nakano B nos.2-4 now crosswalked to report no.239, no.156, and no.155; Shimotashiro no.1 has prior Kyodokan row-safe update; Uriba no.5 remains unresolved. Material: Nakano no.239 凝灰岩; Nakano no.156 蛇紋岩; Nakano no.155 蛇紋岩; Shimotashiro no.2 緑色凝灰岩; Uriba no.5 unresolved. Dimensions: Nakano no.239: 8.2 x 2.5 x 0.8 cm, 15.9 g; Nakano no.156: 5.1 x 3.4 x 0.9 cm, 21.4 g; Nakano no.155: 4.9 x 3.8 x 0.9 cm, 25.7 g; Shimotashiro no.2: (4.7) x (4.3) x (2.3) cm, 37 g. Perforation: Kiyou no.2/source no.239: upper-center one hole; Kiyou no.3/source no.156: upper-center one hole with rubbing; Kiyou no.4/source no.155: upper-corner one hole with rubbing; Shimotashiro no.2: head fragment with one perforation; Uriba no.5 unresolved. Context: Nakano no.239 grid 44-33, layer I; Nakano no.156 grid 17-33, layer I; Nakano no.155 grid 42-37, layer III; Shimotashiro no.2 遺構外E-13 II層下; Uriba part2 blocked. Date: Initial Jōmon (早期); Nakano B occupation c. 5550–5050 BC; the perforated-axe class spans roughly 8,500–6,000 years ago (an uncalibrated class horizon).
- Function
- Published as perforated polished stone axes (有孔石斧) in an Aomori comparison of end-holed blades from Nakano B, Shimotashiro, and Uriba; ancient use is unresolved.
- Map confidence
- low_medium - Approximate locality or municipality/site-cluster anchor from the local dossier; refine before public release.
- Source location
Page references
Aomori Kiyou 30 Fig. 7; Nakano B nos. 239, 156, 155 crosswalk