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The World Heritage Earthen Architecture Programme (WHEAP) is a UNESCO initiative promoting earthen architecture founded in 2007 and running till 2017. [ 1 ] [ 2 ] Sites
In his 2000 publication Die Regional-Typisierung der Erdställe, Herbert Wimmer created a rough classification system for varying types of erdstall: [2] Type A has a single long gallery with slip passages and short side slopes; Type B has multiple levels connected at multiple places by vertical slip passages. Auxiliary construction tunnels have ...
The Central European cultures associated with roundels (Lengyel, Stroked Pottery, Rössen) are indicated in yellow Reconstruction of circular ditches at Heldenberg, Lower Austria The Goseck circle, Germany Sketch of the layout of the Goseck circle, with indication of the direction of sunrise and sunset on winter solstice [1] Aerial image of a ...
It is desirable to keep the size and shape of rooms and pillars consistent, but some mines strayed from this formula due to lack of planning and deposit characteristics. [4] Mine layout includes the size of rooms and pillars in the mines, but also includes factors like the number and type of entries, roof height, ventilation, and cut sequence. [10]
An early attempt on Lhotse was made by the 1955 International Himalayan Expedition, headed by Norman Dyhrenfurth.It also included two Austrians (cartographers Erwin Schneider and Ernst Senn) and two Swiss (Bruno Spirig and Arthur Spöhel), and was the first expedition in the Everest area to include Americans (Fred Beckey, George Bell, and Richard McGowan).
It is a part of the Harney Peak Granite dome that formed in the Late Paleoproterozoic around 1.7 billion years ago. [1] [2] [3] The Harney Peak Granite system includes thousands of pegmatites, one of which is the Tin Mountain. [1] The Tin Mountain pegmatite is rich in lithium, but was first mined in search of tin, which gave the mountain its ...
With an elevation of 5,588 metres (18,333 ft) it is the highest peak of the Min Mountains and is Earth's most easterly peak over 5,500 metres (18,000 ft). It is located in Songpan County of the Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province. Xuebaoding was first climbed in 1986 by a joint Chinese-Japanese expedition. [2]
A Klerksdorp sphere. It is 3 to 4 centimetres (1.2 to 1.6 in) in maximum diameter and 2.5 centimetres (0.98 in) in thickness. Klerksdorp spheres are small objects, often spherical to disc-shaped, that have been collected by miners and rockhounds from 3-billion-year-old pyrophyllite deposits mined by Wonderstone Ltd., near Ottosdal, South Africa.