Tag Archives: unconformities

HiRISE: North polar layers: streaking and unconformity

In geology, an unconformity is a buried erosion surface, where the bedding layers don’t match. It doesn’t mean a mismatch in attitudes and beliefs, with rebellious behavior like streaking. But Mars does have streaking of a different kind, from the … Continue reading

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HiRISE: Clinoforms down in Melas Chasma

This group of steeply inclined light-toned layers is bounded above and below by unconformities (sudden or irregular changes from one deposit to another) that indicate a “break” where erosion of pre-existing layers was taking place at a higher rate than … Continue reading

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HiRISE: Layers in Galle Crater

This image shows a layered deposit in Galle Crater, located in the Southern cratered highlands. The geologic history of Galle Crater is not well constrained, and it contains a variety of features that have been interpreted as fluvial, lacustrine or … Continue reading

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HiRISE: Polar layered deposit unconformities

North polar layered deposit unconformities. Beautiful Mars series

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