| The Caister Coal Formation contains a significant proportion of sandstone, with mudstone and coal arranged in cyclical units. |
| As they point out, satanism as a phenomenon has appeared and disappeared on the social scene throughout history, almost in a cyclical fashion. |
| Laying patterns were cyclical and similar among years, showing a bimodal distribution of clutches each year. |
| Is this recession purely cyclical, or are we seeing a repeat of the 1970s, when uncompetitive industries were winnowed out? |
| Recent weather phenomena can be explained away as cyclical, or as manifestations of climate change. |
| The economy is also showing clear signs of recovery after facing several years of cyclical and structural problems. |
