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Dolomite [mineral]
| Глоссарий геологических терминов |
A common rock-forming rhombohedral carbonate mineral: camg(co3)2. gg dolomite [rock] -a carbonate sedimentary rock consisting chiefly (more than 50 percent by weight or by areal percentages under the microscope) of the mineral dolomite. gg
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Dolomite, английский
- Dolomie
- Доломит
- Доломит. встречающийся в природе карбонат кальция и магния. было предложено использовать этот минерал как источник щелочей для извлечения окислов серы из дымовых газов различными методами.
- 1) mineral. generally white, sometimes slightly yellow, brown, pink or
Dolomite, английский
Dolomite limestone, английский
Dolomite marble, английский
Dolomite rock, английский
Dolomite, 2. dome 1. a curved roof structure spanning an area; often spherical in shape. 2. a square prefabricated pan form; used in two-way joist (waffle) concrete floor construction. 3. a vault substantially hemispherical in shape, but sometimes slightl, английский
Rhombohedral, английский
Sedimentary, английский
Microscope, английский
- Microscopio
- A scientific instrument with lenses, which makes very small objects appear larger the tissue was examined under the microscope. under the microscope it was possible to see the cancer cells. comment: in an ordinary or light microscope the image is magnified by lenses. in an electron microscope the lenses are electromagnets and a beam of electrons is used instead of light, thereby achieving much greater magnifications.
- Device used to form a highly magnified image of tiny objects for clear visualization
- Instrument that provides enlarged images of small objects. microscope, compound: conventional microscope, using geometrical optics for magnification. also called laboratory microscope. microscope, interference: magnifier using the wavelength of light as a unit of measure for surface contour and other characteristics. microscope, metallographic: metallurgical microscope incorporating a camera. also called a metallograph. most metallographic microscopes share these features: (a) stand with concealed shock absorbers, (b) intense light source, (c) inverted stand so that the test object is face down, (d) viewing screens for prolonged tasks such as dirt count or grain size measurements, (e) bright, dark and polarized illumination options. microscope, metallurgical: microscope designed with features suited for metallography. microscope, phase contrast: laboratory microscope with two additional optical elements to transmit both diffracted and undiffracted light, revealing refractive index discontinuities in a completely transparent test object. microscope, polarizing: microscope with polarizing elements to restrict light vibration to a single plane for studying material with directional optical properties. as fibers, crystals, sheet plastic and materials under strain are rotated between crossed polarizers on the microscope stage, they change color and intensity in a way that is related to their directional properties. mig welding: see gas metal arc welding.
- Instrument that provides enlarged images of very small objects.
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Dolostone - (not recommended, английский
Use dolomite) an obsolete term proposed for the sedimentary rock called dolomite, in order to avoid confusion with the mineral of the same name. compare - dolomite. gg dome - (a) [structural geology] an uplift or anticlinal structure, either circular or elliptical in outline, in which the rocks dip gently away in all directions. a dome may be small (e.g. a salt dome) or many kilometers in diameter. (b) [geomorphology] a landform that is a smoothly rounded rock mass such as a rock-capped mountain summit that roughly resembles a building dome. (e.g., the rounded granite peaks of yosemite, ca). gg
Distributary [streams], английский
(a) a divergent stream flowing away from the main stream and not returning to it, as in a delta or on a flood plain. it may be produced by stream deposition choking the original channel. (b) one of the channels of a braided stream; a channel carrying the water of a stream distributary. gg
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