Midterm Review 2

Front

What is hydrolysis in geology?

Back

Hydrolysis is a chemical weathering process where minerals react with water, leading to the decomposition of minerals such as feldspars into clay minerals, silica, and soluble constituents.

Front

What are the linear magnetic patterns associated with mid-ocean ridges?

Back

The linear magnetic patterns are normal and reversed magnetized strips that are roughly parallel to the ridge, indicating the history of Earth's magnetic field reversals.

Front

How can you determine which mineral is harder?

Back

A mineral's hardness can be determined by its ability to scratch another material. If Mineral A can scratch glass and Mineral B cannot, then Mineral A is harder.

Front

What is mechanical weathering?

Back

Mechanical weathering is the process where physical forces break solid rock into smaller sediments without changing the chemical composition of the rock.

Front

What is residual soil?

Back

Residual soil is soil that has formed in place from the weathering of bedrock, retaining the mineral composition of the parent rock.

Front

What is the difference between chemical and mechanical weathering?

Back

Chemical weathering involves the chemical alteration of minerals, while mechanical weathering involves the physical breakdown of rocks into smaller pieces.

Front

What are clay minerals?

Back

Clay minerals are fine-grained minerals that result from the weathering of feldspar and other silicate minerals, often found in residual soils.

Front

What is the significance of mid-ocean ridges?

Back

Mid-ocean ridges are underwater mountain ranges formed by plate tectonics, where new oceanic crust is created, and they are associated with volcanic activity and earthquakes.

Front

What is the Mohs scale of hardness?

Back

The Mohs scale of hardness is a scale from 1 to 10 used to measure the hardness of minerals, with talc at 1 (softest) and diamond at 10 (hardest).

Front

What is regolith?

Back

Regolith is a layer of loose, unconsolidated material covering solid bedrock, which includes soil, sediment, and weathered rock.