Dynamics of rocky shores: Cretaceous, Pliocene, Pleistocene, and Recent, Baja California peninsula, Mexico
Bibliographic record
Abstract
Rocky shorelines provide an excellent record that can be used to interpret the environmental conditions prevailing in a particular area in time and space. Former rocky shores are first-rate indicators of sea-level position, and they provide important local to regional information on tectonics and neotectonics. In this paper, sedimentary units made of gravel-size clasts, interpreted as having been deposited on a rocky shore, provide data for the interpretation of the hydrodynamic conditions under which the units were deposited. A model is presented by which to evaluate the minimum wave height associated with rocky-shore deposits located on the Baja California peninsula, both on the Pacific and Gulf of California margins for Upper Cretaceous and Pliocene shoreface deposits and for a modern beach deposit. Elements considered under the application of the model are the average clast size and water depth assigned to each deposit based on an equation proposed by earlier workers in conjunction with Airy's linear theory. Results from the application of the model reflect the position of each deposit relative to sea level and the clast-size population for each deposit. Values calculated as minimum wave heights range from 3 m to more than 7 m. These are interpreted in the context of northern winter storms on the Pacific coast and tropical storms or hurricanes on the Gulf of California coast.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".