Analysis of Crystalline Rock Permeability Versus Depth in a Canadian Precambrian Rock Setting
Bibliographic record
Abstract
Abstract Over the last 50 years, there has been an increased interest in characterizing Precambrian crystalline rock, such as the Canadian Shield, to investigate the feasibility of deep geologic repositories for isolating used nuclear fuel from the biosphere. Extensive work has been conducted in Canada with a large amount of that work undertaken by Atomic Energy of Canada Limited. Few peer‐reviewed journal articles were published based on these data, so a large amount of the data, specifically on fracture zones, are unavailable for modelers and analysts. By collecting and analyzing over one‐hundred technical reports, journal articles, and conference proceedings, written between 1975 and 1996, it was possible to characterize plutonic Precambrian crystalline rock and separate the data into (1) equivalent porous media (EPM) for rock mass and (2) fracture zones (FZs). A third category, aggregate media (AM), was used herein to represent the entire data set (EPM + FZs). Using the data from these studies, a novel logistic function was fit to represent the mean permeability, with respect to depth, of crystalline rock for EPMs and FZs in plutons. Understanding rock permeability is critical for the long‐term isolation of used nuclear fuel so that accurate predictions of fluid flow and mass transport can be evaluated in the area of the proposed storage location.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| 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".