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.
How to Make Internet Explorer Your Default Internet Browser. Two Methods:Windows 7 and Internet Explorer 9Windows 7, Windows Vista and Windows XP with Internet Explorer 7 or 8Community Q&A. Firefox, Chrome, and Opera have their place, but sometimes what you need is to make IE your default browser again.