A dyke (or dike) in geology is a type of later vertical rock between older layers of rock. Technically, it is any geologic body which cuts across:1  flat wall rock structures, such as bedding. dyke (or dike) in geology is a type of later vertical rock between older layers of rock. Technically, it is any geologic body which cuts across: 1  flat wall rock structures, such as bedding.
Another example would be the âdefault browserâ on your computer. Windows PCs come with Internet Explorer (the blue âEâ icon) as the default browser, just as Apple includes their own Safari browser as the default on their Mac computers.
6 can now be set as the default browser on their smartphones. 1 Alpha, along with other features like user accounts and default browser settings. Browser makers Mozilla and Opera accused Microsoft of force feeding Internet Explorer 8 (IE8) to users with Windows Update and silently changing the default browser on PCs.