weathering zone A distinctive layer of weathered material that extends roughly parallel to the ground surface. It differs physically, chemically, and mineralogically from the layers above and/or below. A broad distinction may be drawn between the weathering zones in drift, which are normally distinguished by degrees of oxidation and by carbonate content, and those on bedrock, which are usually separated according to the relative proportions of corestones and weathered matrix.

weathering zone A distinctive layer of weathered material that extends roughly parallel to the ground surface. It differs physically, chemically, and mineralogically from the layers above and/or below.