Properly formatting expressions such as "H2O" in your Excel spreadsheet requires the use of subscripts. Subscript formatting makes a letter or number appear smaller and slightly below the rest of the ...

Stable isotopes are alternative forms of elements with different molecular weights that are found naturally and do not decay radioactively. Stable isotope analysis of elements such as carbon, nitrogen ...

Using radioactive isotope systems to determine the age and origins of minerals and rocks, primarily as tracers of magmatic processes and the evolution of the earth. Organic molecules in natural waters ...

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