Proceedings of the Ocean Drilling Program Volume 174A Scientific Results: Continuing the New Jersey Mid-Atlantic Sea-Level Transect, Sites 1071–1073
Bibliographic record
Abstract
This Scientific Results volume covers Leg 174A of the cruises of the Drilling Vessel JOIDES Resolution, Halifax, Nova Scotia, to New York, New York, Sites 1071–1073, 15 June–19 July 1997. The Sea Level Working Group (1992) endorsed a three-fold approach to sea-level studies, involving (1) passive continental margins (primarily siliciclastic); (2) carbonate atolls, guyots, and platforms, the so-called “dipstick” approach; and (3) the deep-sea oxygen isotopic record, a proxy for the growth and decay of continental ice sheets. ODP Legs 133 and 166 addressed “Icehouse” sea-level issues at the seaward margins of carbonate platforms off northeastern Australia and the western Great Bahama Bank, respectively. Legs 143 and 144 studied the “Greenhouse” drowning history of western Pacific guyots. Leg 174A is a continuation of the New Jersey Mid-Atlantic Sea-level Transect (MAT), the first concerted effort to evaluate the effects of “Icehouse” glacial-eustatic change at a passive continental margin characterized by predominantly siliciclastic sedimentation. Leg 174A follows successful sampling of the continental slope and rise during Leg 150, and continuing studies of the adjacent New Jersey Coastal Plain (Legs 150X and 174AX). The primary goals of Leg 174A are the following:1. To date as precisely as possible sequence boundaries of Oligocene–Pleistocene age, and to compare this stratigraphic record with the timing of glacial-eustatic changes inferred from deep-sea δ18O variations;2. To place constraints on the amplitudes and rates of sea-level change that may have been responsible for unconformity development;3. To assess the relationships between depositional facies and sequence architecture; and4. To provide a baseline for future scientific ocean drilling that will address the effects and timing of sea-level changes on this and other passive continental margins.An additional goal for Leg 174A is technical. The leg represents the first attempt by scientific ocean drilling in almost 30 years to sample a thickly sedimented continental margin in water depths <150 m. Two sites (Sites 1071 and 1072) are located on the outer part of the continental shelf in water depths of 88–90 and 98–100 m, respectively. An additional site (Site 1073) is located on the uppermost continental slope, part of the Hudson Apron, in a water depth of 639 m.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.078 | 0.024 |
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".