Klonk, near Suchomasty, Czech Republic
E538412
Klonk, near Suchomasty in the Czech Republic, is a globally significant stratigraphic site that serves as the international reference point for the base of the Lochkovian stage of the Devonian period.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Klonk | 0 |
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Global Boundary Stratotype Section and Point
ⓘ
geological heritage site ⓘ stratigraphic section ⓘ |
| access | exposed in a small quarry ⓘ |
| boundaryBetween |
Devonian
ⓘ
Silurian ⓘ |
| closestMajorCity | Prague NERFINISHED ⓘ |
| coordinatesApprox | 49.9°N 14.1°E ⓘ |
| country | Czech Republic ⓘ |
| defines |
base of the Devonian System
ⓘ
base of the Lochkovian Stage ⓘ |
| designatedAs | GSSP for the base of the Lochkovian ⓘ |
| discipline |
paleontology
ⓘ
stratigraphy ⓘ |
| distanceFromPragueApprox | about 30 km southwest ⓘ |
| fossilContent |
brachiopods
ⓘ
conodonts ⓘ graptolites ⓘ |
| geologicalPeriod | Devonian ⓘ |
| geologicalStage | Lochkovian NERFINISHED ⓘ |
| governingBody | International Commission on Stratigraphy NERFINISHED ⓘ |
| lithology |
limestone
ⓘ
shale ⓘ |
| locatedIn |
Beroun District
NERFINISHED
ⓘ
Central Bohemian Region NERFINISHED ⓘ Suchomasty NERFINISHED ⓘ |
| namedAfter | nearby hill Klonk ⓘ |
| near |
Beroun
NERFINISHED
ⓘ
Suchomasty NERFINISHED ⓘ |
| notableFor |
continuous marine sedimentary record across the boundary
ⓘ
well-preserved Silurian–Devonian transition ⓘ |
| partOf |
Barrandian area
NERFINISHED
ⓘ
Bohemian Massif NERFINISHED ⓘ |
| protectedAs | national nature monument ⓘ |
| protectionStatus | geological nature reserve ⓘ |
| ratificationYear | 1972 ⓘ |
| ratifiedBy | International Union of Geological Sciences NERFINISHED ⓘ |
| region | Central Bohemia NERFINISHED ⓘ |
| stratigraphicSignificance |
global stratotype for the Silurian–Devonian boundary
ⓘ
international reference point for the base of the Lochkovian ⓘ |
| timeBoundaryAgeApprox | around 419 million years ago ⓘ |
| usedFor |
calibration of the Devonian time scale
ⓘ
global chronostratigraphic correlation ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.