Tag Archives: central peaks

THEMIS: Hale Crater’s central ridge

THEMIS Image of the Day, May 9,. 2017. Rather than a central peak, Hale Crater contains a complex ridge of peaks. This VIS image shows a portion of the ridge. More THEMIS Images of the Day by geological topic.   … Continue reading

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: Better preserved on Mars than on Earth

In many ways, Mars bears remarkable similarities to Earth, but in some ways it is drastically different. Scientists often use Earth as an example, or analog, to help us to understand the geologic history of the Red Planet. As we … Continue reading

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: 9-km impact crater and its central peak

This image reveals an impact crater, nine kilometers in diameter, with a central peak. Impact craters of various sizes and ages can be found across the Martian surface. Each impact crater on Mars possesses a unique origin and composition, which … Continue reading

Posted in Reports | Tagged , , , , , , , | Comments Off

THEMIS: Rugged central peaks in Hale Crater

THEMIS Image of the Day, January 19, 2017. Today’s false color image shows part of the interior of Hale Crater. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create … Continue reading

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: Raised bedrock in Terra Cimmeria

Large impact craters have central hills or mountains, because the tremendous shock waves from the impact first compresses the ground, then causes a rebound when it becomes uncompressed. This effectively raises bedrock that was once deeply buried to the surface. … Continue reading

Posted in Reports | Tagged , , , , , , , , , | Comments Off

THEMIS: Hale Crater’s rugged central peaks

THEMIS Image of the Day, December 16, 2016. This VIS image shows part of the floor of Hale Crater. The mountains in the image are part of the elongated central peak of the crater. It is believed that Hale Crater … Continue reading

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Colorful bedrock in crater’s central uplift

Large impact craters rebound from the initial shock, raising deep bedrock to the surface in the central uplift of the crater. Often this bedrock has greater compositional diversity than the surface layers, because they are from greater depths, older, jumbled, … Continue reading

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: Crater central peak

The appearance of an impact crater depends on several factors, including the material in which the crater was formed and the size of the impact itself. This image covers a rocky peak in the center of an unnamed crater, approximately … Continue reading

Posted in Reports | Tagged , , , , , , , | Comments Off

THEMIS: Crater interior

THEMIS Image of the Day, March 21, 2016. Today’s VIS image shows the interior of an unnamed crater near Nili Fossae. The central feature of the crater is a peak with a central low pit that was created by rebound … Continue reading

Posted in Reports | Tagged , , , , , , , , | Comments Off

THEMIS: Central pit crater

THEMIS Image of the Day, March 3, 2016. Today’s image shows an unnamed crater located northwest of Elysium Mons. This crater contains a central pit, which formed at the time of impact. The depth, diameter and central morphology of a … Continue reading

Posted in Reports | Tagged , , , , , , , , , | Comments Off