Goldenville Strata exposed at a quarry in Bedford, Canada. Bedford (2006 pop 16780 is a community in the Halifax Regional Municipality, Nova Scotia, Canada. Country to "Dominion of Canada" or "Canadian Federation" or anything else please read the Talk Page It is made up of thick layers of ocean sediments that were laid down during the Middle Cambrian period and were subsequently pushed up onto land. The Middle Cambrian (also known as Albertan, Acadian, St David's, or Saint David's) is the second of three geological epochs of the This formation now covers over half of the province of Nova Scotia and is recorded as being 29,000 feet in thickness in some areas. Nova Scotia (ˌnəʊvəˈskəʊʃə ( Latin for New Scotland; Alba Nuadh Nouvelle-Écosse is a Canadian province located on Canada 's

Heavy minerals (dark) as thin strata in a quartz beach sand (Chennai, India).

In geology and related fields, a stratum (plural: strata) is a layer of rock or soil with internally consistent characteristics that distinguishes it from contiguous layers. Geology (from Greek γη gê, "earth" and λόγος Logos, "speech" lit In Geology, rock is a naturally occurring aggregate of Minerals and/or Mineraloids The Earth's outer solid layer the ‘ Lithosphere Soil, often typeset as SOiL, is a four piece rock band from Chicago Illinois United States founded by Shaun Glass Tom Schofield Tim King and Adam Zadel 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. To help compare Orders of magnitude of different geographical regions we list here Surface areas between 100000 km² and 1000000 km² EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001 Strata are typically seen as bands of different colored or differently structured material exposed in cliffs, road cuts, quarries, and river banks. In Geography and Geology, a cliff is a significant vertical or near vertical rock exposure A road is an identifiable route, way or path between two or more places. A quarry is a type of open-pit mine from which rock or Minerals are extracted "Riverine" redirects here For the use of that term in Maritime geography, see there Individual bands may vary in thickness from a few millimeters to a kilometer or more. The Millimetre ( American spelling: millimeter, symbol mm) is a unit of Length in the Metric system, equal to The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand Each band represents a specific mode of deposition -- river silt, beach sand, coal swamp, sand dune, lava bed, etc. Silt is Soil or rock derived Granular material of a Grain size between sand and clay Sand is a naturally occurring Granular material composed of finely divided rock and Mineral particles A swamp is a Wetland featuring temporary or permanent inundation of large areas of land by shallow bodies of water In physical Geography, a dune is a Hill of Sand built by Aeolian processes. Lava is molten rock expelled by a Volcano during an eruption When first expelled from a volcanic vent it is a Liquid at Temperatures

Geologists study rock strata and categorize them by the material in the beds. A geologist is a contributor to the Science of Geology, studying the physical structure and processes of the Earth and planets of the solar system Each distinct layer is usually assigned to a "formation" name usually based on a town, river, mountain, or region where the formation is exposed and available for study. For example, the Burgess Shale is a thick exposure of dark, occasionally fossiliferous, shale exposed high in the Canadian Rockies near Burgess Pass. See also Burgess shale type fauna The Burgess Shale is famous for the exceptional preservation of the fossils found within it in which the soft parts are preserved FOSSIL is a standard protocol for allowing serial communication for Telecommunications programs under the DOS Operating system. Shale (also called mudstone) is a fine-grained Sedimentary rock whose original constituents were Clay minerals or Muds It is characterized by The Canadian Rockies comprise the Canadian segment of the North American Rocky Mountains range. Slight distinctions in material in a formation may be described as "members" or sometimes "beds. " Formations are collected into "groups. " Groups may be collected into "supergroups. "

The stratum is the fundamental unit in a stratigraphic column and forms the basis of the study of stratigraphy. Stratigraphy, a branch of Geology, studies rock layers and layering ( stratification)

Strata on a mountain face in the French Alps	Interstate road cut through limestone and shale strata in East Tennessee	Rock strata at Depot Beach, New South Wales
Rainbow Basin Syncline near Barstow, California. Limestone is a Sedimentary rock composed largely of the Mineral Calcite ( Calcium carbonate: CaCO3 Shale (also called mudstone) is a fine-grained Sedimentary rock whose original constituents were Clay minerals or Muds It is characterized by Tennessee ( is a state located in the Southern United States. Barstow is a city in San Bernardino County, California, United States. Folded strata.	Outcrop of Upper Ordovician limestone and minor shale, central Tennessee; College of Wooster students.	Chalk Layers in Cyprus - showing classic layered structure

See also

• Stratification
• Polystrate fossil
• Important publications in stratigraphy
• Archaeology
• Geologic map
• Geologic unit
• Geologic formation
• Archaeological horizon

External links

• GeoWhen Database