Each route is signposted and information boards highlight things of interest for that area.
There is free car parking at some of the designated entry points.
Over time, the amounts of Pb-206 and Pb-207 will change in some samples, as these isotopes are decay end-products of uranium decay (U-238 decays to Pb-206, and U-235 decays to Pb-207).
Some of these rocks are sedimentary, and include minerals which are themselves as old as 4.1 to 4.2 billion years.
Rocks of this age are relatively rare, however rocks that are at least 3.5 billion years in age have been found on North America, Greenland, Australia, Africa, and Asia.
Homeowners are often curious of the age of their home appliances.
We have provided this service to try to help them to date their major appliances (fridge, stove, dishwasher, washer, dryer, etc.) accurately from the code usually contained within their serial number.
For example the letter "S" (if present) should not be confused with the number "5" or vise versa.
The number 2 and letter "Z" might also be mistaken for each other.
is a nature conservation site situated north east of Birmingham in the town of Sutton Coldfield.
This former farmland covers 198 acres of green belt countryside and forms a corridor between Walmley and Sutton town centre.
Further, the processes of erosion and crustal recycling have apparently destroyed all of the earliest surface.