Diagenetic alteration of Early Jurassic carbonate rocks and their impact on the rock texture, Bay of Fundy, Canada
Bibliographic record
Abstract
The rocks of Scots Bay Formation occur only along the south shore of the Bay of Fundy where they are exposed in small coves from east of Baxters Harbour to west of Scots Bay, Nova Scotia. Lithologically, the Scots Bay Formation is dominated by clastic sediments, including sandstone, silty sandstone, conglomertic sandstorm, and shale. Carbonate and silicified carbonate rocks include calcareous sandstone, packstone,mudstone, wackcstone, and stromrtolitic limestone. Jasperoid chert nodules and bedded chertsare common throughout much of the formation .The intense shallow burial diagenesis resulted in extensive cementation, recrystallization and authigenic silica mineralization which cause low values of porosity/permeability throughout the carbonate section of Scots Bay Formation. Phreatic and vadose meteoric cements make up most of the cements of Scots Bay lirnestones. Three types of calcite cement occur in the Scots Bay Formation : drusy mosaic, blocky, and minscus cement. The chert is principally diagenetic in origin and consists of chalcedony and mirocrystalline quartz that formed as pore filling cement and replacements of carbonate sediments and calcareous fossils. The source of the silica was hot-spring fluids associated with the underlying basaltic volcanic flows.
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 | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".