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LITHOEN

Geological event

Assembly of Pangaea

The series of collisions through Devonian to Permian time that brought the continents together into Pangaea. The USGS Mississippi Valley-type model connects that interval to about 61 percent of the lead and zinc in dated deposits of that class, through the basinal fluid flow that orogenic loading drives.

Classification

event kind
collision
timing resolution
broadlyAssigned

How this record is known

1
Settled consensus
Cited as the accepted position of the discipline.

1 of 1 claims on this page cite at least one registered source. Counts describe how each statement is known, not how likely it is to be true.

What Lithoen records

Each claim states how it is known and cites its evidence.

Established419.62–251.902 Ma before present

The USGS Mississippi Valley-type model associates the assembly of Pangaea with Devonian to Permian time, and connects that interval to about 61 percent of the lead and zinc content in dated deposits of that class. On the ICS 2024/12 chart that interval runs from 419.62 Ma to 251.902 Ma.

Not stated verbatim by the source — derived: period names from the deposit model x boundary ages from the ICS 2024/12 chart -> numeric interval

The deposit model names the periods and never gives numbers; the chart gives the numbers and never mentions Pangaea. Neither premise carries the claim alone, and the claim is the composition of the two.

  • precision note: An interval of intense tectonic events, not a single dated moment. Assembly was diachronous and the record carries no claim that it began or ended everywhere at once.
  • temporal basis: The source names periods, not numbers. An earlier version of this claim gave the interval as 419–252 Ma and stated that its bounds came from the ICS chart in this corpus; 419 is the chart's 419.62 truncated rather than rounded, and neither bound was carried in the claim's evidence. The bounds are now the chart's own figures and the chart is cited alongside the model that names the periods.

Evidence support: Derived from the cited evidence 2 sources, multiple sources, independence unknown

Evidence: Leach 2010 Primary authority; Cohen 2024 Primary authority

In the knowledge graph

Record last updated 2026-09-07. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.