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  2. Limestone - Wikipedia

    en.wikipedia.org/wiki/Limestone

    Limestone (calcium carbonate CaCO 3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO 3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place ...

  3. Dunham classification - Wikipedia

    en.wikipedia.org/wiki/Dunham_classification

    Robert J. Dunham published his classification system for limestone in 1962. [2] The original Dunham classification system was developed in order to provide convenient depositional-texture based class names that focus attention on the textural properties that are most significant for interpreting the depositional environment of the rocks.

  4. File:Outcrop of dolomitized limestone olistolith, Rizal ...

    en.wikipedia.org/wiki/File:Outcrop_of_dolomitize...

    Tagalog: Masungi limestone (batong apog) na bahagi ng Kulumpon ng mga batong tinaguriang Maybangain. Dumanas ng matinding pagkakabagong-anyo bilang batong dolomite. Ang Kulumpong Maybangain ay may edad na ~100 milyon-38 milyong taon, katumbas ng huling bahagi ng panahong Cretaceous at yugtong Eosino.

  5. List of types of limestone - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_limestone

    Carboniferous Limestone Limestone deposited during the Dinantian Epoch of the Carboniferous Period; Coquina – Sedimentary rock that is composed mostly of fragments of shells; Coral rag – Limestone composed of ancient coral reef material; Chalk – Soft carbonate rock; Fossiliferous limestone Limestone containing fossils

  6. Mines and Geosciences Bureau - Wikipedia

    en.wikipedia.org/wiki/Mines_and_Geosciences_Bureau

    The Mines and Geosciences Bureau (MGB) is a government agency of the Philippines under the Department of Environment and Natural Resources (DENR). The MGB is responsible for the conservation, management, development, and use of the country's mineral resources, including those in reservations and public lands.

  7. File:Limestone forest, Bacuit Bay, Palawan, Philippines.jpg

    en.wikipedia.org/wiki/File:Limestone_forest...

    English: Bacuit Bay, Palawan, Philippines. Limestone forests are found on the islets surrounding Palawan. Limestone forests are found on the islets surrounding Palawan. Represented are Euphorbia trigona, Aglaia argentea, and Antidesma, Drypetes, Gomphandra, Sterculia, Pleomele, and Begonia.

  8. File:Limestone Karsts, Sagada, Cordilleras, Philippines ...

    en.wikipedia.org/wiki/File:Limestone_Karsts...

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  9. North Palawan Block - Wikipedia

    en.wikipedia.org/wiki/North_Palawan_Block

    The geology of the North Palawan Block includes terrane found on four islands: North Palawan, Romblon Island Group, Northeast Mindoro and Buruanga Peninsula.The stratigraphy found on Northern Palawan starts with the Middle Permian to Late Permian Bacuit Formation, a sequence of sandstone, altered tuff, calcareous sandstone, chert, and slate.