Why Does Granite Erode Slower Than Limestone

1 biogenic precipitation from seawater the primary agents being lime secreting organisms and foraminifera.

Why does granite erode slower than limestone.

And 2 mechanical transport and deposition of preexisting limestones forming clastic deposits. Limestone is a rock which is more prone to especially chemical weathering than other types of rocks such as granite. Clay is a softer rock than the sandstone so is eroded more quickly the softer rocks erode backwards faster to form sheltered bays which may have beaches. What weathers faster a granite or limestone.

Limestone because of its mineral property which is composed of mainly calcite which is weaker than granite and the minerals it usually is made up of quartz feldspar mica. Secondly the structure of granite is that of. Granite is harder and stronger than limestone whilst limestone is easier to shape. This is because calcium carbonate which is one of the minerals found in limestone readily reacts with rainwater.

Limestone has long fascinated earth scientists because of its rich fossil. Granite will weather slower than limestone. Limestone has two origins. Which meet the coast at right angles.

Limestone is much softer more porous and more susceptible to this is primarily due to the chemical composition of the rocks. Limestone because of its mineral property which is composed of mainly calcite which is weaker than granite.