https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg/Head https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg/assertion https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg/provenance https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg/pubinfo https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAXf5Fkf_TLSAM8ZItzVY218W2BokLezWgMKdAYPk7Bvg/assertion https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test http://purl.org/dc/terms/description Units for the project named North America (id 1) were downloaded (24141 units, 47371042 bytes, not committed). Because that exceeds 8000, units with col_id % 4 == 1 were kept (6122). A unit is in the thick set when max_thick >= 100 m, base age >= 2.58 Ma and 0 < duration < 250 Ma, and it has an environment list. Subsidence-compatible means a shallow-marine label by the pre-registered word and class rule, no deep label, and max_thick/duration between 1 and 150 m/Myr. That flag is set before pbdb_collections splits fossiliferous (571, fraction 0.5481611208406305) from unfossiliferous (1823, fraction 0.6549643444871092). https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/delphi/ontology/Assessment https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test http://www.w3.org/2000/01/rdf-schema#comment Measured: 0.548161 fraction of thick fossiliferous units that are shallow and slow (n = 571). Interpretation: Full quote, with the sentence it concludes (Origin, 1st ed., ch. IX): sediment may accumulate to any thickness over a shallow bottom if the bottom keeps slowly subsiding, so that subsidence and sediment supply nearly balance, the sea stays shallow and favourable to life, and the formation is thick enough to survive erosion. Then: "I am convinced that all our ancient formations, which are rich in fossils, have thus been formed during subsidence." Subsidence is not read off fossil richness. It is the joint condition of a shallow-marine environment and a long-term accumulation rate of 1 to 150 metres per million years, which is the pre-registered proxy for sinking that keeps pace with sediment. It is not a backstripped tectonic subsidence curve. No such curve matched to these units was in the scouting record. Scope is narrower than all ancient formations: the Macrostrat project named North America, units with base age at least 2.58 Ma. If that project returns more than 8000 units, keep those with col_id modulo 4 equal to 1, in ascending col_id, and do not drop units because of their fossil counts. Present thickness is what the API stores; compaction and later erosion are not removed. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test http://www.w3.org/2000/01/rdf-schema#label Claim test of darwin1859-ch09-06: mixed, confidence 0.45 https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test http://www.w3.org/2000/01/rdf-schema#seeAlso https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/darwin-origin/darwin1859-ch09-06/result.json https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test http://www.w3.org/ns/prov#wasAttributedTo https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7 https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/admissibleDatasets A public unit table with thickness, top and base age, a depositional-environment label, and a fossil-collection count. A backstripped subsidence curve would also be admissible and is not required. Environment labels assigned without any fossil information are preferable; where the label may itself use fossils, that is a caveat, not a reason to drop the field. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/assessmentType claim-test/0.1.0 https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/dataKind physical https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/disconfirmingObservation Fewer than 40% of the thick fossil-bearing units meet that shallow-and-slow definition. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst A generic environment class of marine, with no depth word, counts as shallow. That is the pre-registered rule and it is broader than a shelf-only label. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Environment labels may themselves have been inferred partly from fossils. The fossil count is not used to set the flag, but the label is not fully independent of fossils. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The subsidence proxy is a shallow-marine label plus an accumulation rate of 1 to 150 m/Myr. It is not a backstripped tectonic subsidence history. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The unit download is larger than 1 MB and is not committed. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Thickness is present thickness after compaction and erosion. Scope is the North American project, and a col_id subsample when the unit list exceeds 8000. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/expectedObservation At least 70% of thick fossil-bearing units are shallow marine with a slow accumulation rate, and that is at least 10 percentage points more common than among thick units without fossils. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/failCriterion Refute if the fossiliferous share is under 0.40. Otherwise, if the pass rule fails, the verdict is mixed. If fewer than 30 thick fossiliferous units have an environment, inconclusive with reason underpowered. Shallow marine means the class is marine, or the name contains peritidal, shallow, shoreface, lagoon, reef, shelf, subtidal or marginal, and the name does not contain deep, basinal, slope, bathyal or abyssal. A unit with both a shallow and a deep label is not shallow. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/hasConfidence 0.45 https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/hasEvidence https://w3id.org/delphi/resource/evidence/darwin1859-ch09-06--claim-test--dataset-1 https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/hasVerdict mixed https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/hypothesis Thick fossil-bearing units in the North American rock record are usually shallow marine and accumulated slowly, more often than thick units that lack fossils. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/inferenceMethod Two fractions, fossiliferous and not, of thick units that meet the shallow-and-slow rule. The rule is fixed before the collection count is used. Pass at 0.70 and a gap of 0.10. Refute below 0.40. https://w3id.org/delphi/resource/assessment/darwin1859-ch09-06--claim-test https://w3id.org/delphi/ontology/passCriterion Among units with max_thick >= 100 m, base age >= 2.58 Ma, a positive duration under 250 Ma, and a non-empty environment list, the fossiliferous ones (pbdb_collections >= 1) are subsidence-compatible in at least 70% of cases, and that share is at least 0.10 higher than the share among thick units with pbdb_collections = 0. 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