The difference between a shallow and deep foundation is very simple. A shallow foundation is not very deep and a deep foundation is.

A shallow foundation is generally considered any foundation element that is 6 feet or less in depth. or the depth of foundation is equals to its width of the foundation. Examples are thickened edge slabs and grade beams that are supporting minimal weight.

types of foundation....1. shallow foundation

2. deep foundation

3. pile foundation

That is a foundation that is mot very deep. -If you need more comprehensive info then tell us more.

Foundation is the underground or the substructure part of a building that transmits the load of the super structure to the ground safely.

it is the lower part of building on which the whole structure rests.

it may be made up of stone masonary, PCC or RCC.

depending the width to depth ratio it may be a shallow foundation or a deep foundation. shallow foundations are used for smaller structures and shallow foundations are used for multistoried buildings where the load carried by soil is more.