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Record W2097309411

TERRESTRIAL EVIDENCE OF MELTING OF THE ANTARCTIC ICE SHEET DURING THE LAST GLACIAL PERIOD

2002· book-chapter· en· W2097309411 on OpenAlexfundno aff
Takanobu Sawagaki, Kazuomi Hirakawa

Bibliographic record

VenueHokkaido University Collection of Scholarly and Academic Papers (Hokkaido University) · 2002
Typebook-chapter
Languageen
FieldEarth and Planetary Sciences
TopicGeology and Paleoclimatology Research
Canadian institutionsnot available
FundersJapan Society for the Promotion of ScienceNational Institute of Polar ResearchUniversity of Alberta
KeywordsGeologyMeltwaterGlacial periodIce sheetFluvialIce streamSubaerialGeomorphologyGlacial landformDrumlinGlacierPeriod (music)Wisconsin glaciationOceanographyPhysical geographyPaleontologyMoraineCryosphereSea iceGeography
DOInot available

Abstract

fetched live from OpenAlex

This article presents subaerial geomorphological evidences of significant melting of the Antarctic ice sheet during the last glacial period.Interpretation is based on glacial geomorphic features observed in the southern ice-free areas along the Sya Coast, Ltzow-Holm Bay, East Antarctica.Examples include glacial sculptured bedforms, glacio-fluvial landforms and subglacial till.Sculptured bedforms are composed of mammilated peaks, streamlined hillocks, and a variety of s-forms.The subglacial meltwater erosion model possibly best explains these forms and the absence of drift on the ice-free areas along the coast.Several fluvial valleys are more or less U-shaped with the lowest part of their cros-sections cut down showing a V-shape.Fluvial terraces are composed of large boulders.Huge amount of running water explain these features.The most notable till, containing a lot of oblique and bed-parallel shear planes, may have originated from subglacial meltout and deformation processes indicating a wet-based ice sheet.The North Atlantic sediment record demonstrates that much icerafted debris have occurred during the last glacial period as a succession of Heinrich events.This points to surges of the Hudson Strait ice stream discharging extreme volume of icebergs from the Laurentide ice sheet.Similar processes probably took place in Antarctica during the last glacial period.

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 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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.104
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.002
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0010.000

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 head0.027
GPT teacher head0.203
Teacher spread0.176 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations3
Published2002
Admission routes1
Has abstractyes

Explore more

Same venueHokkaido University Collection of Scholarly and Academic Papers (Hokkaido University)Same topicGeology and Paleoclimatology ResearchFrench-language works237,207