Soapstone sinker S9360t

S9360t

ID2

LocationNorway

Approximate number of models30

Approximate size282 GB

Soapstone artifacts originate from Late Mesolithic or Early Neolithic sites in Western Norway (there are also several stray finds). Only those in the Late Mesolithic layers can be securely attributed stratigraphically. Chronologically they are attributed to 6400-3300 BCE and represent a material culture of the fishing oriented Stone Age societies of the region.

Dataset includes 30 sinkers for line fishing. They are various in size and shape. All are engraved with one or several lines that are the subject of further technological study. Usually, such sinkers are featured with furrow — a wider engraving supposedly used to tighten the line. There are also finer ones, often read as ornamentation. The origin of soapstone is suspected to be local, but is generally unclear.

Metadata

Description

A small sinker on a slaty piece of grey soapstone. It features a lengthwise furrow and narrower incisions that form geometric and zigzag patterns. Both furrow and incisions are shallow. The context of the site where the piece was found is dubious. Therefore, the chronological attribution of the sinker is broad.

Date of discovery

N/A

Material source

Soapstone

From / Current location

N/A / Arkeologisk Museum, Universitetet I Stavanger

Museum №

9360

Museum № extention

Colour

grey

Chronological attribution

Late Mesolithic / Neolithic

Site name

Austreim

Location name

N/A

Metric parameters

2.9x1.9x0.6 cm

Weight

5.28 g

Volume

1874.5 m³

Density

2816.751134 kg/m³

Paradata

Data acquisition technique

Image-based 3D modeling

Data acquisition date

21.11.2024

Data acquisition equipment

Canon EOS D5s R, Zeiss Milvus, f/1.4, 50mm, extension ring 12mm, polarizing filter

Focal length

Aperture

1/16

ISO

200

Exposure

1 s

Image processing software

Adobe Photoshop

3D model creation software

Agisoft Metashape v.1.8.1

Capturing strategy

228 digital images in RAW format. 6 rounds of imaging with different object orientations: bottom-up, up-bottom, close-up on bottom-up, close-up on the up-bottom, front side, back side. SfM photogrammetry, static camera within scenes, an artifact on the turntable, black background; scaled from calibrated metric scale bars. Remote shutter release.

Format of supplementary files

*.mtl
*.jpg

File format / 3D model

*.obj

Number of facets

1,431,724

Length of triangle side

0.069 mm

Referencing accuracy

0.003 mm

Measuring accuracy

0.011 mm