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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 ...
The source of obsidian for cultures inhabiting the territory of and around Greece was the island of Milos; the Starčevo–Körös–Criș culture obtained obsidian from sources in Hungary and Slovakia, while the Cardium-Impresso cultural complex acquired obsidian from the island outcrops of the central Mediterranean.
Most commonly, volcanic glass refers to obsidian, a rhyolitic glass with high silica (SiO 2) content. [7] Other types of volcanic glass include the following: Pumice, which is considered a glass because it has no crystal structure. Apache tears, a kind of nodular obsidian.
Johan's Ark is a Noah's Ark-themed barge in Dordrecht, Netherlands, which was built by the Dutch building contractor, carpenter and creationist Johan Huibers. [1] It is a full-scale interpretation of the biblical Ark, featuring animal models, including cows, penguins, a crocodile, and a giraffe.
Tegillarca granosa (also known as Anadara granosa [2]) is a species of ark clam known as the blood cockle or blood clam due to the red haemoglobin liquid inside the soft tissues. It is found throughout the Indo-Pacific region from the eastern coast of South Africa northwards and eastwards to Southeast Asia , Australia , Polynesia , and up to ...
Fáskrúðsfjörður, located on the same-named fjord, lies between Reyðarfjörður and Stöðvarfjörður.It is one of the easternmost settlements of Iceland. The other neighbouring villages which compose the municipality of Fjarðabyggð are: Eskifjörður (1,043 inh.), Mjóifjörður (35 inh.), Neskaupstaður (1,437 inh.), [2] Reyðarfjörður (1,102 inh.) and Stöðvarfjörður (203 inh.).
An Icelandic farm. The raising of livestock, sheep (the traditional mainstay for generations of Icelandic farmers) and cattle (the latter grew rapidly in the 20th century), [2] is the main occupation, but pigs and poultry are also reared; Iceland is self-sufficient in the production of meat, dairy products and eggs.
The practice of no-till farming is a combination of different ideas developed over time, many techniques and principles used in no-till farming are a continuation of traditional market gardening found in various regions like France. [10] A formalized opposition to plowing started in the 1940s with Edward H. Faulkner, author of Plowman's Folly. [11]