natural cracks

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• Natural arch — Natural bridges redirects here. For the U.S. National Monument, see Natural Bridges National Monument. The Delicate Arch in Arches National Park in Utah, United States. A natural arch or natural bridge is a natural geological formation where a… …   Wikipedia

• Natural Park of Penyal d'Ifac — Penyal d Ifac IUCN Category V (Protected Landscape/Seascape) Location …   Wikipedia

• Drumheller Channels National Natural Landmark — Drumheller Channels Drumheller Channels National Natural Landmark showcases the Drumheller Channels, which are the most significant example in the Columbia Plateau of basalt butte and basin channeled scablands. This National Natural Landmark is… …   Wikipedia

• Perceptions of religious imagery in natural phenomena — are sightings of images with religious themes, especially the faces of religious figures, in ordinary phenomena. Many instances that are reported involve images of Jesus or other Christian figures seen in food, but it has an equivalent in the… …   Wikipedia

• mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …   Universalium

• Hot dry rock geothermal energy — (HDR) is a type of geothermal power production that uses the very high temperatures (approx 200 Celsius) that can be found in rocks a few kilometers below ground. Electricity is generated by pumping high pressure water down a borehole (injection… …   Wikipedia

• Road surface — A road in the process of being resurfaced Road surface (British English) or pavement (American English) is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past… …   Wikipedia

• Enhanced geothermal systems — (EGS)Enhanced Geothermal Systems (EGS) enhance and/or create geothermal systems through hydraulic stimulation. When natural cracks and pores will not allow for economic flow rates, the permeability can be enhanced or stimulated by pumping cold… …   Wikipedia

• scorpion — scorpionic /skawr pee on ik/, adj. /skawr pee euhn/, n. 1. any of numerous arachnids of the order Scorpionida, widely distributed in warmer parts of the world, having a long, narrow, segmented tail that terminates in a venomous sting. 2. the… …   Universalium

• Nekhel — نِخِل   City   Nickname(s): Heart of Sinai Motto: Frozen Heart …   Wikipedia

• Tor — A tor is a rock outcrop formed by weathering, usually found on or near the summit of a hill. In the South West of England, where the term originated, it is also a word used for the hills themselves – particularly the high points of Dartmoor in… …   Wikipedia