More recently introduced terms such as 'annually laminated' are synonymous with varve. Of the many rhythmites in the geological record, varves are one of the most important and illuminating in studies of past climate change. Varves are amongst the smallest-scale events recognised in stratigraphy.
Computer Randomly Shuts Down: Possible Reasons. If your laptop or computer shuts down by itself randomly, then there can be many possible reasons for it. Knowing the problems due to which your PC keeps shutting down frequently will help you deal with them accordingly. Reason #1: Virus Infiltration.
1 If one of your computer's RAM modules fails completely, your computer won't even turn on. 2  Most of the time, however, memory fails slowly and will work up to a point. 3  If your system memory is failing, your computer may power on but then freeze, stop, or reboot continuously at some point during Windows startup.