Bibliographic record
Abstract
The AEM Greenland 1998 (1) survey was conducted in Washington Land and Daugaard-Jensen Land in western North Greenland. Measurements included acquisition of controlled source electromagnetic data (GEOTEM -time domain EM ) and total field magnetic data. The survey (size of 3220 km2) was flown by Geoterrex-Dighem Ltd. and financed by the Government of Greenland. Two surveys were acquired. The main survey was flown with a flight line spacing of 400 metres between lines with a heading of NW23.5 deg and tie-lines at a direction of NE66.5 deg spaced 4 km apart. Within this area, a smaller survey in the eastern part directly over the mineralised sites was measured at 200 m line spacing (NE66.5 deg). During a GEUS geological reconnaissance campaign in eastern Washington Land in 1997, a Zn-Pb-Ag mineralisation was discovered in dolomitic boulders in the area. The discovery led to the selection of Washington Land and Daugaard-Jensen Land as one of the target areas in North Greenland for a combined airborne electromagnetic (GEOTEM) and magnetic survey. Lower Palaeozoic sedimentary deposits dominate the geology of Washington Land and Daugaard-Jensen Land. The sediments were deposited in the Franklinian Basin that has an extension of approximately 2000 km across North Greenland and Canada. Approximately 8 km of Lower Palaeozoic strata are exposed within the North Greenland part of the basin. In Washington Land and Daugaard-Jensen Land the depositional environment of the basin is reflected in shelf sediments located to the south and deep-water sequences further to the north. Exposed rocks in the survey area consist mainly of carbonates deposited on the former shelf with subordinate siliciclastic sediments and evaporites. The Zn-Pg-Ag mineralisation is found within the evaporite-rich part of the Lower Ordovician platform sediments.
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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 | 0.001 | 0.006 |
| Meta-epidemiology (narrow) | 0.003 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.004 | 0.009 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.003 | 0.002 |
| Open science | 0.004 | 0.002 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.275 | 0.349 |
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".