Tambach Formation
early Permian-age geologic formation in Germany
The Tambach Formation is an Early Permian-age geologic formation in central Germany. It consists of red to brown-colored sedimentary rocks (red beds) such as conglomerate, sandstone, and mudstone, and is the oldest portion of the Upper Rotliegend within the Thuringian Forest Basin.
The overall geology records a history with three distinct stages of sedimentation within a mountainous environment. First, tectonic activity forms a basin (the Tambach Basin) dominated by high-energy debris flows, sheetfloods, and braided rivers. These incise underlying rhyolitic rock, depositing a coarse conglomerate known as the Bielstein Conglomerate. Second, calmer conditions allow the basin to widen, and the conglomerate is marginalized by finer sediments which were previously only common at the center of the basin, such as the characteristic Tambach Sandstone. These finer sediments were deposited through repeated sequences of flooding, followed by calm water, followed by exposure to air. The overall climate would have been similar to modern tropical savannas, with hot and dry periods broken up by heavy rainfall, likely multiple times in a year. The third stage involves a return of tectonic conditions, this time inducing wide deposits of polymictic (heterogenous) conglomerate known as the Finsterbergen conglomerate.
The Tambach Formation also includes one of the most important Permian fossil localities in Europe: the Bromacker locality.
“Tambach Formation” enters the record as early Permian-age geologic formation in Germany. Crown Archives preserves that source wording while asking what Tambach, Formation and early can confirm, complicate or overturn.
Why this record matters
“Tambach Formation” is worth following because a concise public description often conceals a longer documentary argument. Here, Tambach, Formation and early provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 11, 2026. The linked authority identifier is Q7680999. Authority coordinates are 50.810, 10.619. None of the 1 selected statements returned an explicit reference.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Tambach Formation”, its source revision and the description used here.
- Expand the search: follow Tambach Formation primary sources, Tambach Formation archive and Tambach research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Tambach Formation”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Tambach Formation” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.