MétaCan
Menu
Back to cohort
Record W1892381349 · doi:10.1016/0967-0653(96)80460-1

10.1016/0967-0653(96)80460-1

2000· article· en· W1892381349 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueTime to knit · 2000
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeology and Paleoclimatology Research
Canadian institutionsnot available
Fundersnot available
KeywordsGeologyPaleontologySea levelPleistoceneStadialHoloceneMarine transgressionInterglacialOutcropOceanographySequence stratigraphyCyclostratigraphySedimentary rockSedimentary depositional environment

Abstract

fetched live from OpenAlex

A history of sea-level highstands representing the past 1.2 my is assembled from geological and geo-chronological data from Bermuda and the Bahamas. Outcrops of marine and eolian limestones exhibit sea-level indicators on tectonically stable islands. Because of the low-lying nature of the islands, they preserve a record of both highstand (limestone) and lowstand (paleosol) events. Geomorphology and sequence stratigraphy are critical for ranking deposit age, while U-series, amino acid racemization (AAR), electron spin resonance (ESR), and paleomagnetics have provided absolute and relative age estimates. In Bermuda, two early Pleistocene marine sequences are estimated to be > 700 ka and > 880 ka. The younger of the two is associated with a + 22 m marine terrace cut into the older Walsingham Fm, which exposes marine limestones at < + 5 m a.s.l. During the latter half of the middle Pleistocene (Stages 11, 9, and 7; 500 to 180 ka), sea level rose above the present at least three times to approximately +4 m, +4m, and +2.5 m, respectively. Stage 5e includes at least two major positive oscillations of sea level (early at +4 m and late at ≥+6 m). The two 5e marine units are separated by an extensive, rubified protosol, interpreted as evidence of a minor regression (interstadial) of several thousand years. The late Sangamonian (Southampton Fm) is characterized by an extensive skeletal eolianite on high-energy shorelines, offlapped by a - 1 m to + 1 m marine deposit dated at ca. 85 ka. There is no evidence to support a Holocene sea level rising significantly above the present datum. Unlike tectonic coastline and isotopic studies that require major assumptions of constant uplift and temperature/ice-volume/salinity in order to calculate ancient sea levels, precise elevations of paleo-seduced can be obtained from deposits on stable carbonate platforms. Regardless, the inexact models provided by deep-sea oxygen isotope and U-series dating of uplifted reef terraces are valuable to establish a framework for the timing, duration and relative magnitude of Quaternary high sea levels.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.767
Threshold uncertainty score0.417

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)1.0001.000

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.

Opus teacher head0.010
GPT teacher head0.185
Teacher spread0.175 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it