EPO2.15_F1
EPO2.15
ID3
LocationNorway
Approximate number of models23
Approximate size132 GB
Experimentally produced objects for the purpose of the TEMPA 3D project. Experiments were held in January and November 2024, and included engraving of soapstone from Rennesøy and Målslev and sandstone from Kamyana Mohyla. Experimentally produced objects were specifically designed to look at the technological traces of the surface modification processes via image-based 3D modeling.
Dataset includes 23 models of the experimentally produced objects. Among other this includes flint and quartz marks on soapstone, sandstone, bone, and antler as well as experimental replicas of Kamyana Mohyla churinga and soapstone line sinkers. For most engravings the modification time was recorded along with the production tool. The accuracy of the models in the dataset are around 0.1 mm, the resolution — around 0.03 mm.
ID
EPO2.15
A piece of sandstone from Kamyana Mohyla, engraved (sawed) with flint blade for a recorded time (10 mins). The engraving was made specifically on the surface without the desert varnish to check if the engraving process will be significantly easier compared to the EPO2.12. THe difference is insignificant. No grinding or other preparation prior to the engraving.
Information
Artifact material
Soapstone
Artifact is experimentally produced
Yes
Tool material [known]
Flint
Tool material [attributed]
N/A
Tool type [known]
Blade
Tool type [attributed]
N/A
Surface modification strategy description
Sawing
Number of slices
29
Aperture
125°
Depth
1.036902584 mm
FWMH
2.968530898 mm
Extremum points, [MP]
8.931034483
Frequency of MP change per mm
9.24137931
Depth / FWMH ratio
0.3492982287
Comments on the slices analysis
Sawed with large flint blade for the extended period of time. The blade is crumblin, blunting, and braking very fast, while the engraving procedure is moderately effective. Producing a single engraving requires a lot of time and effort. The sufrace of this experimental piece was wet and the desert varnish was cleaned off. Engraving process was way easier than on the dry surface or desert varnish. However, as a side effect, some sand grains remained in the incision, causing a bottom of the engraving bumpy and curvy. Engraved during 10 minutes.
Link to the data
N/A