MinuteEarth
UPSIDE-DOWN Rivers On Mars?! (Response to MinutePhysics)
- Author: Podcast
- Narrator: Podcast
- Publisher: Podcast
- Duration: 0:03:23
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Synopsis
To learn more about this topic, start your googling with these keywords: Inverted relief: a topographic feature, such as an old riverbed, that has reversed its elevation relative to other features. Duricrust: a hard mineral crust formed at or near the surface of soil in semiarid regions by the evaporation of groundwater. Geomorphology: the study of the physical features of the surface of the earth and their relation to its geological structures. Exhumed paleochannel: a remnant of an inactive river or stream channel that has been either filled or buried by younger sediment, and then subsequently uncovered by erosion. Erosion: the action of surface processes, including wind and water, that move dirt and rock from their original location to some other place. Capillary action: the tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension. Mineral precipitation: when dissolved compounds in a solution bond together to form a solid (a simple example is how