Bibliographic record
Abstract
Light-weight vibracoring is a well-established technique used to collect a continuous core of saturated, loose sand and silt deposits. It uses a resonating core barrel that liquefies contacting sediment and sinks into and around the underlying sediment column. GSC-NC equipment consists of a 2.5 hp Honda motor that powers a 5.1 cm (2 in) diameter vibrator head via a 10.7 m long flexible steel shaft. Core sediments are collected in 7.6 cm (3 in) O.D. aluminum irrigation pipe cut into 2.3-2.4 m (7.5-8 ft) lengths. The pipes are joined with couplers, as necessary, to create a continuous length of core barrel of up to 12.1 m (40 ft) long. A core catcher at the mouth of the core barrel helps retain penetrated sediment. After vibrating a core barrel into the ground, it is extracted using a one ton hoist mounted on a JAWS 'A' frame ladder. Shallow cores (less than 2m deep), however, have been recovered manually. The retrieved core barrel is cut up into 1 to 1.5 m lengths, capped, sealed with tape, and transported to the laboratory for analysis. In the laboratory, the core barrel sidewalls are cut longitudinally with a circular saw and the enclosed deposits split, logged and sub-sampled. Core recovery is variable, depending on deposit grain size and sorting, but can exceed 90%. The vibracoring equipment requires a crew of two and can be transported by a pickup truck, ATV and/or snowmobiles. Vibracoring has been used to collect cores up to 5.5 m long from lacustrine deposits in the French River and North Bay areas and, most recently, from small wetlands on Leda clay earthflows in the Ottawa area.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".