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  2. Map series - Wikipedia

    en.wikipedia.org/wiki/Map_series

    Mairie de Loevenich (), from the Topographic Survey of the Rhineland by Tranchot/Müffling, sheet 57 (published 1806/07).. A map series is a group of topographic or thematic charts or maps usually having the same scale and cartographic specifications, and with each sheet appropriately identified by its publisher as belonging to the same series.

  3. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    The first multi-sheet topographic map series of an entire country, the Carte géométrique de la France, was completed in 1789. [9] The Great Trigonometric Survey of India, started by the East India Company in 1802, then taken over by the British Raj after 1857 was notable as a successful effort on a larger scale and for accurately determining ...

  4. Marker horizon - Wikipedia

    en.wikipedia.org/wiki/Marker_horizon

    Marker horizons of tephra are used as a dating tool in archaeology, since the dates of eruptions are generally well-established. [ 3 ] One particular bolide impact 66 million years ago, which formed the Chicxulub crater , produced an iridium anomaly that occurs in a thin, global layer of clay marking the Cretaceous–Paleogene boundary . [ 4 ]

  5. Benchmark (surveying) - Wikipedia

    en.wikipedia.org/wiki/Benchmark_(surveying)

    An Ordnance Survey cut mark in the UK Occasionally a non-vertical face, and a slightly different mark, was used. The term benchmark, bench mark, or survey benchmark originates from the chiseled horizontal marks that surveyors made in stone structures, into which an angle iron could be placed to form a "bench" for a leveling rod, thus ensuring that a leveling rod could be accurately ...

  6. Topography - Wikipedia

    en.wikipedia.org/wiki/Topography

    The term topography originated in ancient Greece and continued in ancient Rome, as the detailed description of a place.The word comes from the Greek τόπος (topos, "place") and -γραφία (-graphia, "writing"). [3]

  7. Examination boards in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Examination_boards_in_the...

    The UK's examination boards sometimes work together. For example, they sometimes offer qualifications jointly or share training materials for common parts of specifications. The JCQ (Joint Council for Qualifications) is a common voice for UK exam boards. The JCQ is made up of AQA, CCEA, City & Guilds, Edexcel, OCR, SQA and WJEC.

  8. Quadrangle (geography) - Wikipedia

    en.wikipedia.org/wiki/Quadrangle_(geography)

    New York (Essex County) Mt. Marcy: an 1892 USGS quadrangle map (or topographic sheet) of the Mount Marcy area of the Adirondacks in New York State from the first decades of the United States Geological Survey. A "quadrangle" is a topographic map produced by the United States Geological Survey (USGS) covering the United States.

  9. AQA - Wikipedia

    en.wikipedia.org/wiki/AQA

    AQA Education, [1] trading as AQA (formerly the Assessment and Qualifications Alliance), is an awarding body in England, Wales and Northern Ireland. It compiles specifications and holds examinations in various subjects at GCSE, AS and A Level and offers vocational qualifications. AQA is a registered charity and independent of the government.