1. Varves are amongst the smallest-scale events recognised in stratigraphy.2. Laminae that represent seasonal changes ( similar to tree rings ) are called varves . 3. Consequently, varves commonly form under anoxic conditions. 4. Such varves in meromictic lakes preserve an historical record somewhat like tree rings do. 5. :The best argument I can find against young-Earth creationism is varves . 6. However, international interest in varves diminished. 7. Lake varves are primarily influenced by: 8. "Look at those varves ! " marvels a graduate student, admiring the seasonal layers. 9. Wilmot H . Bradley found that annual varves of clay laid down in lake beds showed climate cycles. 10. That gives geologists an exact date for the last varve there; see Varve for dating by counting varves .