chert

  • 41Narooma Terrane — The Narooma Accretionary Complex or Narooma Terrane is a geological structural region on the south coast of New South Wales, Australia that is the remains of a subduction zone or an oceanic terrane. It can be found on the surface around Narooma,… …

    Wikipedia

  • 42Normandy Archaeological Project — The Normandy Archaeological Project was a rescue excavation designed to preserve the archaeological history of the area before it became submerged by the construction of the Normandy Reservoir Dam through funding from the Tennessee Valley… …

    Wikipedia

  • 43Hot Springs National Park — Infobox protected area | name = Hot Springs National Park iucn category = II caption = locator x = 160 locator y = 120 location = Garland County, Arkansas, USA nearest city = Hot Springs lat degrees = 34 | lat minutes = 30 | lat seconds = 49 |… …

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  • 44Glen Canyon Park — Aerial photograph of Glen Canyon Park; the Bosworth St., Sussex St., and Diamond Heights Shopping Center entrances are labeled. O Shaughnessy Blvd. divides Glen Canyon Park (on the east) from O Shaughnessy Hollow (to the west). Typ …

    Wikipedia

  • 45Evolutionary history of plants — Plants have evolved through increasing levels of complexity, from the earliest algal mats, through bryophytes, lycopods, ferns and gymnosperms to the complex angiosperms of today. While the simple plants continue to thrive, especially in the… …

    Wikipedia

  • 46Shadowmarch — ist eine vierteilige Fantasy Romanreihe des amerikanischen Schriftstellers Tad Williams. Obwohl erst als Trilogie angelegt, umfasst die Reihe nun vier Bände – aufgrund seiner Länge wurde der dritte Teil in zwei Bände aufgeteilt.… …

    Deutsch Wikipedia

  • 47Flint — (or flintstone) is a hard, sedimentary cryptocrystalline form of the mineral quartz, [ [http://webmineral.com/data/Quartz.shtml General Quartz Information] Webmineral.com (page contains java applets depicting 3d molecular structure)] [… …

    Wikipedia

  • 48Widgiemooltha Komatiite — The Widgiemooltha Komatiite is a formation of komatiite in the Yilgarn Craton of Western Australia. Stratigraphy The stratigraphy of the Widgiemooltha Komatiite is well known to be part of the regional komatiite magmatic event also seen at the… …

    Wikipedia

  • 49Rhynia — Taxobox fossil range = Early Devonian image caption = Reconstruction of Rhynia gwynne vaughanii , redrawn afterP. Kenrick, P.R. Crane (1997) The origin and early diversification of land plants. A cladistic study. Smithsonian Institution Press,… …

    Wikipedia

  • 50Carboniferous Period — Interval of geologic time 354–290 million years ago, marked by great changes in world geography. All the landmasses drew closer together as a result of tectonic plate movements. The supercontinent Gondwana occupied much of the Southern Hemisphere …

    Universalium