Here's a breakdown of the characteristics of a geological sound:

* Inlet: It's an opening or channel that connects to a larger body of water.

* Long and narrow: It extends inwards from the main body of water.

* Partially enclosed by land: One or more sides are bordered by land, creating a sheltered area.

Examples of geological sounds include:

* Long Island Sound: Located between Long Island and the mainland of Connecticut in the United States.

* Plymouth Sound: Located in Devon, England, on the English Channel.

* Queen Charlotte Sound: Located in British Columbia, Canada, on the Pacific Ocean.

It's important to note that the term "sound" is sometimes used in a more general sense to refer to any large body of water, even if it doesn't technically meet the geological definition.