- published: 13 Nov 2015
- views: 145480
In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil with internally consistent characteristics that distinguish it from other layers. The "stratum" is the fundamental unit in a stratigraphic column and forms the basis of the study of stratigraphy.
When planning civil engineering projects or other large constructions, the strata of the area where the construction takes place is a significant factor in design decisions. For example if a canal is to be built on a route where the strata are not watertight, the canal will have to be lined with some form of waterproof material (usually clay).
Each layer is generally one of a number of parallel layers that lie one upon another, laid down by natural forces. They may extend over hundreds of thousands of square kilometers of the Earth's surface. Strata are typically seen as bands of different colored or differently structured material exposed in cliffs, road cuts, quarries, and river banks. Individual bands may vary in thickness from a few millimeters to a kilometer or more. Each band represents a specific mode of deposition: river silt, beach sand, coal swamp, sand dune, lava bed, etc. it also is very important
Bacon Cheddar & Spinach Strata - Bacon Cheddar & Spinach Breakfast Casserole
Strata Presents The End of the World - Full Album - (2007)
Strata - The panic
STRATA 'Never There'
Strata - Cocaine (We're All Going to Hell)
Strata Piece by Piece
Strata - Stay Young
Strata - When it's all burning
Strata - We've Changed
Spinach, Mushroom, & Sourdough Strata
Strata - Sleep
Strata G - Uma Cena Nossa (feat. DIRO) [Video Oficial]
Brunch Recipe - How to Make Breakfast Strata
Strata - Stay Young (Live)