| 31. | Siderite is commonly found in isotopic composition of meteoric water shortly after deposition.
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| 32. | Isotopic substitution can modify the rate of reaction in a variety of ways.
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| 33. | Even isotopic differences must be considered when examining chirality.
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| 34. | This, and further experiments used carbon isotopic labelling.
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| 35. | Evidence for this mechanism is found in isotopic labeling.
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| 36. | The extension is marked by the isotopic ages of the previously mentioned rocks.
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| 37. | Hence the isotopic composition of lithium can vary somewhat depending on its source.
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| 38. | First the monoisotopic peak may not be resolved from the other isotopic peaks.
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| 39. | Eighteen different values were attained using six isotopic species.
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| 40. | Isotopic profiles of Gal�pagos rocks can be matched with those from CLIP rocks.
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