Tag Archives: ice-rich mantling

THEMIS: Renaudot Crater’s dunes in false color

Posted on May 31, 2019 by rburnham

THEMIS Image of the Day, May 31, 2019. Today’s image shows part of the floor of Renaudot Crater, located on the margin between Terra Sabaea and Utopia Planitia. The small dark blue features at the top right corner of the … Continue reading →

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

HiRISE: An interesting layered deposit

Posted on May 30, 2019 by rburnham

An interesting layered deposit. The objective of this observation is to examine layers in an impact crater, located in Galaxias Fossae. Pictures like this will help us put together a geological history of the region. Note the indentation on the … Continue reading →

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

THEMIS: Layers in Cavi Angusti

Posted on April 25, 2019 by rburnham

THEMIS Image of the Day, April 25, 2019. Cavi Angusti is located near the south polar cap and consists of large irregular steep-sided depressions termed cavi. Layering is visible within the large cavi at the top of the image. Explore … Continue reading →

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

HiRISE: Quite smoooooth

Posted on April 22, 2019 by rburnham

Quite smoooooth. Here in Deuteronilus Mensae, there is a smooth geologic unit overlying plains material. There are also slightly convex-up edges, polygonal patterns on the surface, and softened craters. HiRISE Picture of the Day archive. [More at links]

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

THEMIS: Ice-rich mantling in Utopia crater

Posted on April 16, 2019 by rburnham

THEMIS Image of the Day, April 16, 2019. This false-color VIS image shows a crater located in Utopia Planitia. The crater’s interior shows ample evidence for an ice-rich mantling material that has slipped and slumped away from the crater’s upraised … Continue reading →

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

THEMIS: Protonilus Mensae in false color

Posted on February 28, 2019 by rburnham

THEMIS Image of the Day, February 28, 2019. The hills in this false-color VIS image are part of Protonilus Mensae. These hills, located between the relative highlands of Terra Sabaea and the lowlands of Vastitas Borealis, most likely formed by … Continue reading →

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

THEMIS: Eroding layers in Spallanzani Crater

Posted on January 31, 2019 by rburnham

THEMIS Image of the Day, January 31, 2019. This VIS image shows part of the floor of Spallanzani Crater. At some point after the crater was created the floor was covered by a fill material. The material was laid down … Continue reading →

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

THEMIS: Moving downhill

Posted on January 18, 2019 by rburnham

THEMIS Image of the Day, January 18, 2019. This VIS image shows an isolated mountain east of Hellas Planitia. Erosion is moving material down hill towards the lower elevations. The linear features on the hill debris indicate that volatiles such … Continue reading →

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

THEMIS: Gullies and floor features in Aonia Terra crater

Posted on January 17, 2019 by rburnham

THEMIS Image of the Day, January 17, 2019. Many large gullies dissect the rim of this unnamed crater in Aonia Terra.  The inner walls and floor both show evidence of pasted-on terrain — a layer of potentially ice-rich dust. See … Continue reading →

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

THEMIS: Graben cuts across Claritas Fossae crater

Posted on December 7, 2018 by rburnham

THEMIS Image of the Day, December 7, 2018. Located on the northern margin of Aonia Terra, this unnamed crater interacts with one of the fossa, also called a graben. In this image, it is apparent that the tectonic depression crosses … Continue reading →

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