| He mentioned that at the IRMM isotopically enriched silicon samples were used to determine the isotope ratios. |
| The second relation concerns the spacing between vibrational energy levels: the vibrational energy levels of an isotopically heavier molecule lie closer together. |
| Ardi was excavated between 1994 and 1997 and has been isotopically dated at 4.4 million years old. |
| During interglacial periods the ice caps melt and return the isotopically light water to the oceans, where it mixes rapidly. |
| Winter and summer laminae differences are significant and are isotopically depleted with respect to water column organic carbon. |
| Consequently, white mica populations and even individual grains may represent compositionally and isotopically heterogeneous systems. |
