Karst definition

Karst means a landscape that is characterized by the features of solution weathering and erosion in the subsurface. These features include caves, sinkholes, disappearing streams, subsurface drainage and deeply incised narrow canyons.

Karst means a distinctive topography that indicates solution of underlying carbonate rocks (such as limestone and dolomite) by surface water or groundwater over time, often producing surface depressions, sinkholes, sinking streams, enlarged bedrock fractures, caves, and underground streams.

Karst means a terrain with an assemblage of landforms such as sinkholes and caves that are due to weathering of predominantly carbonate bedrock.

Examples of Karst in a sentence

• Furthermore, no time extension shall be allowed for a Karst Investigation Delay with respect to: (x) any Karst Features that could have been avoided by reasonable design modifications or construction techniques; or (y) Karst Features on any DB Contractor-Designated ROW.

• DB Contractor shall not be entitled to any time extension for investigations, evaluations or assessments of a Karst Feature prior to a determination that the applicable Karst Feature contains suitable habitat for endangered karst invertebrates and DB Contractor’s notification of such determination to TxDOT.

• If a Karst Investigation Delay at one location is concurrent with another Karst Investigation Delay at one or more other locations, the 30-day period of DB Contractor’s responsibility for the delays at the locations shall run concurrently and only one of the concurrent Karst Investigation Delays shall apply to the 120-day cap.

• A Karst Investigation Delay begins on the date DB Contractor notifies TxDOT, in accordance with Section 12.2.5.6 of the Design-Build Specifications, that a Karst Feature contains suitable habitat for endangered karst invertebrates and ends upon the earlier of (a) completion of the presence/absence surveys required under Section 12.2.5.6 of the Design- Build Specifications for such Karst Feature and (b) discovery of any species listed as a Threatened or Endangered Species at the Karst Feature location.

• If a Karst Investigation Delay exceeds 30 days for a particular Karst Feature, then the risk of such Karst Investigation Delay in excess of 30 days for that Karst Feature shall be borne by TxDOT.

More Definitions of Karst

Karst means a type of underlying geology that may have the presence of subsurface fissures, caverns, sinkholes or other features resulting from dissolution of limestone or marble that could lead to the rapid subsurface movement of untreated sewage.

Karst means a specific type of topography that is formed by dissolving or solution of carbonate formations, such as limestone or dolomite; it is characterized by closed depressions or sinkholes, caves, sinking and reappearing streams, and/or underground conduit drainage flow.

Karst means terrain, generally underlain by limestone, in which the topography is chiefly formed by the dissolving of rock, and is commonly characterized by closed depressions, underground drainage, and caves.

Karst. (active) means a geographic area underlain by carbonate bedrock (or other forms of bedrock that can erode or dissolve) with less than 50 feet of sediment cover.

Karst means a type of topography formed over limestone, dolomite, or gypsum resulting in dissolving or solution of the underlying calcareous rock.

Karst means a type of topography formed over limestone, dolomite, or other soluble rock, by dissolving or solution, and characterized by sinkholes, caves, and underground drainage. Groundwater flow in karst occurs principally in conduits and is turbulent.

Karst means a type of topography or landscape characterized by depressions, sinkholes, limestone towers and steep-sided hills, underground drainage, and caves. Karst is formed on carbonate rocks, such as limestone or dolomite and sometimes gypsum.