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Перевод: basalt

[существительное]
базальт

Тезаурус:

1. When a basalt flow has cooled sufficiently for some sort of crust to form, one of two possible things can happen.
2. When a thin section of a basalt is examined under a microscope, it can be seen to be made up of a closely-felted mass of interlocking needle-like crystals of feldspar, a millimetre or so long, with a scattering of more colourful tiny crystals of olivine and pyroxene and some black opaque specks of iron oxides.
3. J. The most famous scene which attracts tourists to Northern Ireland is the Giant's Causeway, a mass of pillars of basalt rock on the northern coast of the Antrim plateau.
4. This basalt plateau has been tilted and parts have been faulted downwards to form the low land around Lough Neagh and in the River Bann valley.
5. The whole area, a thicker, stronger basalt pavement, is funnel-shaped and the water pours back into the central hole that has been emptied to a depth of three or more metres.
6. The canyon was a natural cutting through a mountain of basalt.
7. Features Associated with Basalt Lava Flows
8. Basalts form the entire oceanic crust of the Earth, and all of this basalt originates in the same way, from the melting of rocks in the upper part of the mantle, underneath the ocean ridges.
9. This record is retained permanently, so if a specimen of rock is put into the detecting instrument, and various careful measurements made, it is possible to find out what the Earth's magnetic field was like at the time when the basalt cooled from its original molten state.
10. There are small variations in composition from one island to another, of course, but these are insignificant, and should not obscure the underlying fact that basalt constitutes a fundamental rock type, common to all parts of the Earth.
11. Gas bubbles in any liquid tend to rise to the surface, so in any basalt lava flow, it is only the top part which is likely to have a honeycomb texture.
12. In the Columbia River area of the western U.S.A. where most of the lavas were erupted about twenty million years ago, such vast amounts of basalt were poured out on to the surface that hills 1,500 metres high were drowned in lava!
13. Their chief interest was in walking rather than in birds, so we compromised with a day that started near Svartifoss, a waterfall that tumbles between black basalt columns.