Which type of seismic waves are confined at the surface

Rayleigh waves and Love waves are seismic waves that are confined at the surface.

Explanation:

Rayleigh are a type of 'surface wave' that travels near solid surfaces. This waves include both 'longitudinal' and 'lateral movements', the amplitude of which decreases with the exponentially increasing distance from the surface.  

These adjustments are based on the geometrical distribution by the height of the waves and inverse problem solving on seismic data obtained at ground level using active or microtremor.

Love waves, also known as Q waves. They are superficial seismic waves that moves the Earth horizontally during an earthquake.

because there are alot of mountains

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks