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.
Click the Start button, then click Control Panel, click Network and Internet, and then click Internet Options. 2. Select the Program tab. In the Internet Options window, click the Programs tab, then next to where it says Internet Explorer is not currently the default web browser, click Make default.1  Click the checkbox to tell you if Internet Explorer is not the default web browser.. Once in Internet Options, click on the Programs tab, then select Set your default programs. 3. In the Programs bar to the left, select Internet Explorer, then click Set this program as default.