borehole en
61Geosteering — In the process of drilling a borehole, geosteering is the act of adjusting the borehole position (inclination and azimuth angles) on the fly to reach one or more geological targets. These changes are based on geological information gathered while …
62Geology of Alderley Edge — Infobox Mountain Name = Alderley Edge Photo = Stormy Point 1993.jpg Caption = Stormy Point Elevation = 183 m (600 ft) Location = Cheshire, ENG Range = Prominence = Coordinates = Topographic OS Landranger 118 Grid ref UK = SJ870760 Grid ref… …
63Hockey stick controversy — The hockey stick controversy is a dispute over the reconstructed estimates of Northern Hemisphere mean temperature changes over the past millennium, [cite web | publisher=Realclimate | title=Hockey Stick | date=2004 11 28 |… …
64Devico AS — Type Private Industry Mining Services and drilling Founded 1988 Headquarters Melhus, Norway Products Directional core drilling and borehole survey tools Website …
65rock bolt — Mining, Civ. Engin. a steel or fiberglass bolt inserted and anchored in a hole drilled in rock to prevent caving of the roof of a tunnel or subterranean chamber. [1955 60] * * * ▪ mining in tunneling and underground mining, steel rod… …
66Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
67Core recovery parameters — describe the quality of core recovered from a borehole. Contents 1 Total core recovery 2 Solid core recovery 3 Rock quality designation 3.1 Classificat …
68Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… …
69Bre-X — Minerals Ltd., a member of the Bre X group of companies, was a junior Canadian mining company, based in Calgary, that was once reported to be sitting on an enormous gold deposit at Busang, Indonesia (on Borneo). Bre X bought the Busang site in… …
70Eemian interglacial — The Eemian interglacial era, now known as the Eemian Stage, is temporally equivalent to the Sangamon Stage in North America, the Ipswichian Stage in the UK, and the Riss Würm interglacial in the Alps) is second to latest interglacial epoch of the …
