1:2,500 Geological Map of South Achill Island and Achill Beg, Western Ireland
Bibliographic record
Abstract
Please click here to download the map associated with this article. In Ireland, a major NE-SW trending fault zone (the Fair Head—Clew Bay line) separates high-grade metamorphic rocks (the Dalradian Supergroup) that were originally deposited on an ancient continental margin from lower-grade rocks of oceanic affinity (the Clew Bay Complex). This fault zone continues towards the NE into Scotland, where it is known as the Highland Boundary Fault, and to the west into Newfoundland and the Appalachians, where it is termed the Baie Verte—Brompton line. As such, it is one of the longest fault zones in the Caledonian/Appalachian mountain belt. It has been active several times during this mountain-building episode, and has thus played an important role during the evolution of this orogenic belt. In Scotland and most of Ireland, this fault zone is generally very poorly exposed, and the relationships between the rock units on either side of this discontinuity have therefore proved controversial in the past. However, it is superbly exposed on the coastline sections of Achill Island and Achill Beg in western Ireland. This enables detailed geological field mapping of the fault zone and the adjacent rock units, and thus a fuller understanding of the tectonic significance of this major lineament. A 1:2,500 geological map has been completed of the region surrounding the fault zone, which is locally termed the Achill Beg Fault. This has demonstrated that the two rock units (the Dalradian Supergroup and the Clew Bay Complex) have a very similar history of deformation, and were likely to have been deformed contemporaneously during an early phase of the Caledonian Orogeny.
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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 | 0.004 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.094 | 0.032 |
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".