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  2. Terraria - Wikipedia

    en.wikipedia.org/wiki/Terraria

    Terraria has support for mods, which is facilitated by the third-party tModLoader. [12] [13] [14] It later received official support when it was released as free downloadable content alongside the "Journey's End" update on Steam in 2020. [15] Mods for Terraria vary widely in their scope, content, and purpose. Some, such as Thorium and Calamity ...

  3. Komagata ruins - Wikipedia

    en.wikipedia.org/wiki/Komagata_ruins

    The Komagata site is located at an elevation of 910 meters on a well-watered plain south of Mount Kirigamine near the southwestern foot of Mount Yatsugatake.It is flanked by the Aizawa River to the west and the Oshimizu River to the east, and is about ten kilometers south of high-quality obsidian seams at the Hoshikuso Pass obsidian mine site.

  4. Category:Underwater mining - Wikipedia

    en.wikipedia.org/wiki/Category:Underwater_mining

    Download as PDF; Printable version; In other projects Wikidata item; ... Pages in category "Underwater mining" The following 13 pages are in this category, out of 13 ...

  5. Seabed mining - Wikipedia

    en.wikipedia.org/wiki/Seabed_mining

    Seabed mining, also known as Seafloor mining [1] is the recovery of minerals from the seabed by techniques of underwater mining. The concept includes mining at shallow depths on the continental shelf and deep-sea mining at greater depths associated with tectonic activity, hydrothermal vents and the abyssal plains .

  6. Obsidian hydration dating - Wikipedia

    en.wikipedia.org/wiki/Obsidian_hydration_dating

    Obsidian hydration dating (OHD) is a geochemical method of determining age in either absolute or relative terms of an artifact made of obsidian.. Obsidian is a volcanic glass that was used by prehistoric people as a raw material in the manufacture of stone tools such as projectile points, knives, or other cutting tools through knapping, or breaking off pieces in a controlled manner, such as ...

  7. Deep sea mining - Wikipedia

    en.wikipedia.org/wiki/Deep_sea_mining

    Polymetallic nodules on the deep seabed in the CCZ Example of manganese nodule that can be found on the sea floor. Polymetallic nodules are found at depths of 4–6 km (2.5–3.7 mi) in all major oceans, but also in shallow waters like the Baltic Sea and in freshwater lakes.

  8. Hoshigatō obsidian mine site - Wikipedia

    en.wikipedia.org/wiki/Hoshigatō_obsidian_mine_site

    The Hoshigatō obsidian mine site (星ヶ塔黒曜石原産地遺跡, Hoshigatō kokuyōseki gensanchi iseki) is a Jōmon period archaeological site consisting 193 shallow interconnected pits over a 35,000 square meter area, from which obsidian had been mined, located in what is now part of the town of Nagawa in the Chūbu region Japan.

  9. List of mine warfare vessels of the United States Navy

    en.wikipedia.org/wiki/List_of_mine_warfare...

    Mine warfare consists of: minelaying, the deployment of explosive naval mines at sea to sink enemy ships or to prevent their access to particular areas; minesweeping, the removal or detonation of naval mines; and degaussing, the process of decreasing or eliminating a remnant magnetic field in a ship's hull to prevent its detection by magnetic mines.