Transregional Perspectives: Characterizing Obsidian Consumption at Early Chalcolithic Ein el-Jarba (N. Israel)
Bibliographic record
Abstract
This paper details the characterization of 48 obsidian artifacts from Ein el-Jarba, an Early Chalcolithic site of the southern Levantine Wadi Rabah culture (6th millennium cal b.c.). By melding sourcing data from energy-dispersive X-ray fluorescence spectroscopy with the artifacts’ techno-typological specifics, we contrast Ein el-Jarba’s obsidian consumption practices with those of broadly contemporary and earlier communities in the context of the period’s emergent transregional character. The results attest to a major reconfiguration of long-term traditions, with well-known Cappadocian and Lake Van region source materials now supplemented by obsidian from the Caucasus, such material’s most southerly distribution. These diverse resources are believed to have circulated within the same exchange networks, mediated by communities of the Halaf culture to the north. Most of Ein el-Jarba’s obsidian was in the form of pressure blades from a common technical tradition, the implements likely procured ready-made from the well-connected site of Hagoshrim.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".