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.
Bibliographic record
Abstract
Emplacement and weathering of large igneous provinces (LIPs) can have dramatic effects on global climate and biogeochemical systems. In the Phanerozoic, these events are often linked to expanding oceanic anoxia, widespread deposition of organic-rich shales, and metazoan extinctions. In the Precambrian, LIP activity would have had similar potential to perturb global systems, though the outcome may have differed given different starting conditions. Specifically, against a backdrop of mostly low oxygen conditions, Precambrian LIP emplacement may have stimulated oxygenation of the atmosphere and shallow oceans, which could have favored innovations among eukaryotic life. Here, we review the records of several oceanic-atmosphere redox proxies, summarize their utility, and compare them with the record of continental LIPs. While the mid-Proterozoic (1.8–0.8 Ga) is famous for long-term environmental stability, several independent proxies suggest the possibility that conditions were transiently more oxygenated at ~1.4 Ga. This time coincides roughly with a period of increased LIP activity that has been recently linked with widespread deposition of black shales. We explore the possibility that LIP-induced impacts on productivity might have favored organic matter burial, transient oxygenation, and potential advantages for aerobic life, focusing in particular on the feedbacks that maintained environmental balance for nearly a billion years. Our understanding of the evolution of Proterozoic environmental conditions is still nascent, but as records improve and we search for mechanisms that underpinned long-term stability or drove secular change, it is critical that the whole Earth system be considered.
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 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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 it