Triple
T32965845
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lomagundi excursion |
E843364
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | carbon isotope anomaly |
C27484
|
CONCEPT FINISHED |
How this triple was built (1 step)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: carbon isotope anomaly Context triple: [Lomagundi excursion, instanceOf, carbon isotope anomaly]
-
A.
carbon isotope excursion
chosen
A carbon isotope excursion is a geologically rapid, significant shift in the ratio of stable carbon isotopes (typically δ13C) recorded in sediments or fossils, reflecting major changes in the global carbon cycle and often associated with climatic or biotic events.
-
B.
chemical isotope
A chemical isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons in its nucleus, resulting in a different atomic mass.
-
C.
Holocene climatic anomaly
The Holocene climatic anomaly is a period of relatively warm and variable climate conditions occurring roughly between 4,000 and 2,500 years ago during the Holocene epoch, marked by regional shifts in temperature and precipitation patterns.
-
D.
carbonaceous asteroid
A carbonaceous asteroid is a dark, primitive small body in space rich in carbon and volatile compounds, thought to preserve some of the Solar System’s most ancient, unaltered material.
-
E.
global biogeochemical perturbation
A global biogeochemical perturbation is a large-scale, often rapid disruption of Earth's elemental cycles (such as carbon, nitrogen, or sulfur) that significantly alters environmental conditions and ecosystem functioning worldwide.
- F. None of above.
Provenance (1 batch)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69f3494af2808190ad98cec2f1bc0fe6 |
completed | April 30, 2026, 12:21 p.m. |
Created at: May 1, 2026, 1:21 a.m.