beach rock Cemented beach sand deposit that develops within the intertidal zone by the precipitation of needle-like crystals of aragonite in the pore space between the grains. The cementation process is relatively rapid, taking as little as 10 years for a lithified rock to develop. The precipitation of the cement is favoured by a warm climate, and may be aided by algal or bacterial action.

beach rock A cemented beach sand deposit that develops within the intertidal zone by the precipitation of needle-like crystals of aragonite in the pore space between the grains. The cementation process is relatively rapid, taking as little as ten years for a lithified rock to develop. The precipitation of the cement is favoured by a warm climate, and may be aided by algal or bacterial action.

beach rock A cemented beach sand deposit that develops within the intertidal zone by the precipitation of needle-like crystals of aragonite in the pore space between the grains. The cementation process is relatively rapid, taking as little as 10 years for a lithified rock to develop. The precipitation of the cement is favoured by a warm climate, and may be aided by algal or bacterial action.