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This is a list of Global Boundary Stratotype Sections and Points. Since 1977, Global Boundary Stratotype Sections and Points (abbreviated GSSPs) are internationally agreed upon reference points on stratigraphic sections of rock which define the lower boundaries of stages on the geologic time scale .
A Global Boundary Stratotype Section and Point (GSSP), sometimes referred to as a golden spike, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale.
The United Nations geoscheme is a system which divides 248 countries and territories in the world into six continental regions, 22 geographical subregions, and two intermediary regions. [1] It was devised by the United Nations Statistics Division (UNSD) based on the M49 coding classification . [ 2 ]
Below are separate lists of countries and dependencies with their land boundaries, and lists of which countries and dependencies border oceans and major seas. The first short section describes the borders or edges of continents and oceans/major seas. Disputed areas are not considered.
Early world maps cover depictions of the world from the Iron Age to the Age of Discovery and the emergence of modern geography during the early modern period.Old maps provide information about places that were known in past times, as well as the philosophical and cultural basis of the map, which were often much different from modern cartography.
Countries by land border length Antarctica and countries in purple are those without any land border. This list gives the number of distinct land borders of each country or territory, as well as the neighboring countries and territories. The length of each border is included, as is the total length of each country's or territory's borders. [1]
A stratotype or type section in geology is the physical location or outcrop of a particular reference exposure of a stratigraphic sequence or stratigraphic boundary. If the stratigraphic unit is layered, it is called a stratotype, whereas the standard of reference for unlayered rocks is the type locality .
The coastline of the GAUL is mostly compliant with the coast of the International Boundary map delivered by the UN Cartographic Section except for some countries (e.g. Vietnam, India, Bangladesh, etc.) where it has been updated according to the satellite images (e.g. Landsat ETM). For future releases of the GAUL, the process of updating the ...
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3579 S High St, Columbus, OH · Directions · (614) 409-0683