Radiocarbon Dating is used on organic objects only, so the fact that your whole example is based on inorganic rocks and radio carbon dating only suggests that you do not know with any detail or understanding the topic that you are discussing.
There are 2 calories in 1 cup of Unsweetened Iced Tea. Calorie breakdown: 0% fat, 97% carbs, 3% protein.
Calories in Unsweetened Tea, Brewed. *Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. Some of these foods were entered by users and are subject to error.