küüserformatioonis

Küüserformatioonis refers to a specific geological formation found in Estonia, primarily in the northern part of the country. It is characterized by its distinct sedimentary layers and the presence of specific fossil assemblages. The formation is named after the Küüser quarry, where its type section is best exposed. It is predominantly composed of dolomites and limestones, with some intercalations of marl and claystone. These rocks were deposited during the Silurian period of the Paleozoic Era.

The Küüserformatioonis is notable for its rich fossil content, particularly trilobites, brachiopods, and crinoids. These fossils provide valuable insights into the marine ecosystems that existed in the region millions of years ago. The stratigraphy of the formation allows for detailed correlation with other Silurian sequences in the Baltic region and beyond. Its geological significance lies in contributing to the understanding of Paleozoic paleogeography and paleoenvironments.

Economically, the dolomites of the Küüserformatioonis have been quarried for building materials and crushed stone. The extraction of these resources has also led to significant paleontological discoveries, as quarrying activities expose fresh rock faces. The formation is a key component of Estonia's geological heritage and is studied by geologists and paleontologists to unravel the ancient history of the Baltic Sea region.