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  2. Stone Forest - Wikipedia

    en.wikipedia.org/wiki/Stone_Forest

    The Stone Forest or Shilin (Chinese: 石 林; pinyin: Shílín) is a notable set of limestone formations about 500 km 2 located in Shilin Yi Autonomous County, Yunnan Province, People's Republic of China, near Shilin approximately 90 km (56 mi) from the provincial capital Kunming.

  3. Geologic time scale - Wikipedia

    en.wikipedia.org/wiki/Geologic_time_scale

    The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years.. The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.

  4. South China Karst - Wikipedia

    en.wikipedia.org/wiki/South_China_Karst

    The region can be considered the global type-site for three karst landform styles: fenglin (tower karst), fengcong (cone karst), and shilin (stone forest or pinnacle karst).The landscape also retains most of its natural vegetation, which results in seasonal variations and adds to the outstanding aesthetic value of the area.

  5. Prehistoric rock engravings of the Fontainebleau Forest

    en.wikipedia.org/wiki/Prehistoric_rock...

    A reenactment of the creation of such a work using stone tools of the type produced by the works’ creators shows that a single line etching with a length of 15 cm and a depth of 2 mm can be completed in less than 60 seconds and that the engraved grids of the type commonly found in the Fontainebleau Forest can be executed in between 5 and 15 ...

  6. List of archaeological periods - Wikipedia

    en.wikipedia.org/wiki/List_of_archaeological_periods

    The three-age system has been used in many areas, referring to the prehistorical and historical periods identified by tool manufacture and use, of Stone Age, Bronze Age and Iron Age. [1] [2] Since these ages are distinguished by the development of technology, it is natural that the dates to which these refer vary in different parts of the world.

  7. Oldest dated rocks - Wikipedia

    en.wikipedia.org/wiki/Oldest_dated_rocks

    The main fragment of meteorite NWA 11119, the oldest dated whole rock. One of the oldest Martian meteorites found on Earth, Allan Hills 84001 has been measured to have crystallized from molten rock 4.091 billion years ago.

  8. Lithographic limestone - Wikipedia

    en.wikipedia.org/wiki/Lithographic_limestone

    The original source for lithographic limestone was the Solnhofen Limestone, named after the quarries of Solnhofen where it was first found. This is a late Jurassic deposit, part of a deposit of plattenkalk (a very fine-grained limestone that splits into thin plates, usually micrite) that extends through the Swabian Alb and Franconian Alb in Southern Germany. [5]

  9. Early world maps - Wikipedia

    en.wikipedia.org/wiki/Early_world_maps

    'A Map of the Myriad Countries of the World'; Italian: Carta Geografica Completa di tutti i Regni del Mondo, "Complete Geographical Map of all the Kingdoms of the World"), printed by Italian Jesuit missionary Matteo Ricci at the request by Wanli Emperor in 1602, is the first known European-styled Chinese world map (and the first Chinese map to ...