Weathering is the alteration by chemical, mechanical, and biological processes of rocks and minerals at or near the Earth’s surface, in response to environmental conditions.
|This is an Oxisol that formed from ultrabasic rock in Salcedo, Eastern Samar|
|The widespread red soil (Ultisol) in the volcanic area of Central Negros|
|An Ultisol on pre-weathered sediments from basalt in Silago, Southern Leyte|
|An Ultisol formed on pre-weathered sediments from basalt in Biliran, Leyte|
The widespread soil from basalt on the lower slopes of Mt. Pangasugan, Baybay, Leyte