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.
OS: Windows XP Pro SP2. Microsoft Windows uses the default Web browser setting when you click links in a document or on a Web page. Windows uses Microsoft Internet Explorer by default, but you can change to a different browser if you want to.To change from Internet Explorer to another browser, do one of the following:y default browser is Maxthon, but when I click a web link in Word or Excel, the web page opens in IE, not in Maxthon.