Tag Archives: wind erosion

Tibetan Plateau has analogs for Mars yardangs

[Editor’s note: From a paper by Jiang Wang and eight co-authors recently published in the Journal of Geophysical Research.] Geological Features and Evolution of Yardangs in the Qaidam Basin, Tibetan Plateau (NW China): A Terrestrial Analogue for Mars • We … Continue reading

Posted in Reports | Tagged , , , | Comments Off

THEMIS: Wind-driven blowouts in Eumenides Dorsum

THEMIS Image of the Day, August 17, 2018. Eumenides Dorsum is a large linear rise located in southern Amazonis Planitia. Erosion by wind action is prevalent in this region. The horseshoe shaped depressions, called blowouts, indicate the major wind direction … Continue reading

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

HiRISE: Inverted channel on elevated terrain

An inverted channel on elevated terrain. Interesting fluvial processes that might help improve our understanding of the deposits in the Medusae Fossae Formation. Beautiful Mars series. [More at links]

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

HiRISE: The bedforms, they are a-changin’

The bedforms, they are a-changin’. This is in Zephyria Planum. Beautiful Mars series. [More at links]

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

THEMIS: Daedalia Planum crater

THEMIS Image of the Day, July 30, 2018. This VIS image shows part of an unnamed crater on the northwest margin of Daedaia Planum. Lava flows are visible around the crater rim. The interior of the crater has been filled … Continue reading

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

THEMIS: Wind-etched ridges on Zephyria Planum

THEMIS Image of the Day, July 27, 2018. This VIS image is located near Zephyria Planum. Winds of two different directions have excavated a poorly cemented surface into linear ridge features called yardangs. Examining the structure of the ridges, it … Continue reading

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

THEMIS: Wind-eroded ridges

THEMIS Image of the Day, July 17, 2018. Winds in this region have modified the surface, carving valleys into a poorly cemented material. The winds in this region blew toward the northeast. (Note: north is to the top of the … Continue reading

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

THEMIS: Wind etching of soft sediments

THEMIS Image of the Day, June 29, 2018. In regions of poorly cemented surface materials it is possible to create large features due to just the action of the wind. The equatorial region between Olympus Mons and Apollinaris Mons is … Continue reading

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

THEMIS: Yardangs on Gale Crater’s Mt. Sharp

THEMIS Image of the Day, June 25, 2018. While far from the rover, this VIS image of Gale Crater covers the same central layered deposit, Mt. Sharp, that Curiosity is studying. The linear ridges, called yardangs, are the result of … Continue reading

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

THEMIS: Wind-eroded Medusae Fossae formation

THEMIS Image of the Day, June 11, 2018. This VIS image shows part of Medusa Fossae. Winds have eroded materials in this region, creating ridges and valleys aligned with the direction of the wind. The formation materials appear soft and … Continue reading

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