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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Branche/domæne: Astronomy
Category: Planetary science
Company: PSRD
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