стандартты орта мұхит суы (СОМС)

стандартты орта мұхит суы (СОМС)

A precise definition of the isotopic composition of water on Earth. It serves as a reference standard for comparing hydrogen and oxygen isotope ratios. For example, cosmochemists measure the ¹⁷O / ¹⁶O and ¹⁸O / ¹⁶O ratios in terms of deviations in parts per thousand from a standard (delta ¹⁸O and delta ¹⁷O). The usual standard is SMOW.

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Szófaj: noun
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Ipar/Tárgykör: Astronomy
Kategória: Planetary science
Company: PSRD
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кома

Astronomy; Planetary science

A large cloud of dust and gas which escapes from the nucleus of an active comet.

ұлпа

Astronomy; Planetary science

Materials loosely packed and not cemented together.

криптомария

Astronomy; Planetary science

Buried mare basalt lavas on the Moon. Many light plains in the lunar highlands have impact craters surrounded by dark piles of ejecta, nicknamed "dark-haloed craters. " The ...

метан

Astronomy; Planetary science

A compound composed of carbon and hydrogen: CH 4 .

ұзақ

Astronomy; Planetary science

In astronomy, a comet with an orbital period greater than 200 years.

ғарыш желдетуі

Astronomy; Planetary science

Processes that change the physical structure, optical properties, or chemical or mineralogical properties of the surface of an airless planetary body from their original state. ...

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