Related topics: earthquake

New source of fire records gives a bigger picture of the risks

Sand dunes are not an obvious place to find high-quality fire records. For a start, anyone who walks on the forested sand dunes of South-East Queensland will be impressed by the intensity of ant activity at their feet. The ...

Minoan eruption survey improves volcanic risk assessments

Volcanic eruptions are spectacular, violent and dangerous. Large explosive eruptions can even have global impacts. To classify the size of volcanic eruptions, the magma volume and the deposition volume are determined. Volcanologists ...

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Sediment is any particulate matter that can be transported by fluid flow, and which eventually is deposited.

Sediments are most often transported by water (fluvial processes) transported by wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice transported sediments.

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