Evidence report · as of 2026-10-02

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Which open datasets carry measured stable-isotope and paleoclimate-proxy records from ocean sediments?

Meridian Evidence Report - grounded, graded, read-only. Datasets are byte-measured (the moat); works ride alongside as declared.

Datasets
8
Measured
8 · 100%
Papers
14
Patents
3
Claims
3
Sources
2

Synthesized answer

Based on the provided records, seven open datasets hosted on the PANGAEA repository are declared to contain stable isotope and paleoclimate-proxy measurements from ocean sediments (specifically planktonic and benthic foraminifera or bulk sediments from DSDP, ODP, and ocean cores). The physical structures of these datasets have been verified through measured properties, demonstrating that they are tabular with varying record lengths and completeness. Another open dataset contains stable isotope measurements but is declared to originate from terrestrial caves (speleothems) rather than ocean sediments.

  • declared

    Based on declared evidence, seven datasets hosted on the PANGAEA repository are designated as containing stable oxygen and carbon isotope ratios from benthic/planktonic foraminifera or bulk sediment of ocean cores (DSDP, ODP, or South Atlantic surface sediment). This statement rests entirely on declared metadata concerning the dataset contents and origins.

  • measured

    The physical characteristics of these seven ocean-sediment datasets have been explicitly measured. They are tabular in topology, varying in size from 29 records (in ds_01KWZ5P2WRQZ9822H6HY14NCD7 and ds_01KWZ5P3SWHW6VJG8P9SM6QFGY) to 600 records (in ds_01KWZ5P2VGZ5D04181QSX095C9), with measured null rates spanning from 25% to 79%.

  • measured

    An additional stable isotope dataset (ds_01KWHH83V4J7NE1ZJSMWB8N09W) is available on Zenodo, but it is declared to contain data from land-based cave speleothems (Ejulve and Molinos) rather than marine sediments, although its physical structure (tabular topology, 74 records, and 56% null rate) has been measured.

Authored by the synthesizer, grounded in this exploration's evidence - every claim cites only what the graph holds and is graded by what it rests on (measured only when it rests on bytes, never on literature). vertex:gemini-3.5-flash:medium

Measured rows
1,061
Measured bytes
218 KB
Avg null rate
62%
Publishers
2
Evidence by grade
  • measured8· 32%
  • declared17· 68%

Measured = we read the bytes; declared= the source's own metadata. The moat is how much of the base is measured, not taken on the publisher's word.

Spread by publisher
  • pangaea7
  • zenodo1
Measured topology mix
  • tabular8
Evidence families
  • Datasets8· 32%
  • Scholarly works14· 56%
  • Patents3· 12%
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