{"id":41308,"date":"2025-04-14T00:22:03","date_gmt":"2025-04-13T22:22:03","guid":{"rendered":"https:\/\/www.ig.cas.cz\/?p=41308"},"modified":"2025-04-14T13:26:12","modified_gmt":"2025-04-14T11:26:12","slug":"martian-mud-flows-a-little-salt-makes-a-big-difference-2","status":"publish","type":"post","link":"https:\/\/www.ig.cas.cz\/en\/martian-mud-flows-a-little-salt-makes-a-big-difference-2\/","title":{"rendered":"Martian mud flows: a little salt makes a big difference"},"content":{"rendered":"

Ond\u0159ej Kr\u00fdza’s research was highlighted in Eos, the esteemed popularization magazine published by the American Geophysical Union (AGU), which focuses on making advancements in Earth and space sciences accessible to a broader audience.<\/strong><\/p>\n

In the northern lowlands of Mars, there are thousands of small cones that scientists believe were formed tens to hundreds of millions of years ago by mud flowing from underground.<\/strong> Mud on the surface of Mars behaves very differently to what we see on Earth due to the extremely low atmospheric pressure, which makes liquid water unstable. Until now, it has been unclear how the presence of various salts and their amounts change the properties of mud in the Martian environment.\u00a0<\/strong><\/p>\n

\ud83d\udd17\u00a0Cel\u00fd \u010dl\u00e1nek si m\u016f\u017eete p\u0159e\u010d\u00edst zde:<\/strong>\u00a0https:\/\/eos.org\/articles\/salt-may-be-key-to-martian-mudflows<\/a><\/p>\n

Publication in Eos<\/em> represents a significant achievement and confirmation of the quality of our scientific work on an international scale. Eos<\/em> is one of the leading sources of popular science articles in the field of geosciences and contributes to spreading the results of scientific research to a wider audience.<\/p>\n

 <\/p>\n

Link to the original article:<\/strong><\/p>\n

Ond\u0159ej Kr\u00fdza, Petr Bro\u017e, Mark Fox-Powell, V\u011bra P\u011bnkavov\u00e1 et al.:<\/p>\n

Small amounts of dissolved salt increases the mobility of mud flows on Mars and other extra-terrestrial bodies<\/p>\n

https:\/\/www.nature.com\/articles\/s43247-025-02110-w#Abs1<\/a><\/p>\n

\u00a0<\/strong>Associated movie:<\/strong><\/p>\n

https:\/\/youtu.be\/jqozzfqYOb4\u00a0<\/a><\/p>\n

Related images:<\/strong><\/p>\n

\"\"<\/p>\n

Figure 1: One of the smaller cones of Dashgil mud volcano in Azerbaijan. (PHOTO: Petr Bro\u017e)<\/em><\/p>\n

\"\"<\/p>\n

Figure 2: Possible mud flow on Martian surface. Captured from\u00a0Bro\u017e et al. (2019).<\/em><\/p>\n

\"\"<\/strong><\/p>\n

Figure 3: A view of the low-pressure chamber at the Open University (UK) where the mud experiments were conducted. The chamber makes it possible to reduce the atmospheric pressure to values prevailing on the surface of Mars in a few minutes. PHOTO: Petr Bro\u017e<\/em><\/p>\n

\"\"\u00a0<\/strong><\/p>\n

Figure 4: An example of the shape of mud flows with differing salt concentrations (specifically, MgSO4<\/sub> at concentrations of 0.5% and 10%). With higher salt content, the reach of the flow increases, but the flow pattern and colour also change.<\/em><\/p>\n

\"\"<\/strong><\/p>\n

Figure 5: Explanation of the changing behaviour of mud with increasing salt content. If the concentration is low, the mud freezes more easily. If the salt content is higher, the viscosity of the mud and its freezing point decrease. However, if the mud is “saturated” with salt, its viscosity increases. Therefore, the mud flows less easily, but freezes significantly later.<\/em><\/p>\n

\"\"<\/p>\n

Ond\u0159ej Kr\u00fdza (PHOTO: Miroslava Mach\u00e1\u010dkov\u00e1)<\/em><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Ond\u0159ej Kr\u00fdza’s research was highlighted in Eos, the esteemed popularization magazine published by the American Geophysical Union (AGU), which focuses on making advancements in Earth and space sciences accessible to a broader audience. In the northern lowlands of Mars, there are thousands of small cones that scientists believe were formed tens to hundreds of millions of years […]<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[166],"tags":[],"class_list":["post-41308","post","type-post","status-publish","format-standard","hentry","category-tiskove-zpravy-en"],"yoast_head":"\nMartian mud flows: a little salt makes a big difference - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ig.cas.cz\/en\/martian-mud-flows-a-little-salt-makes-a-big-difference-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Martian mud flows: a little salt makes a big difference - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.\" \/>\n<meta property=\"og:description\" content=\"Ond\u0159ej Kr\u00fdza’s research was highlighted in Eos, the esteemed popularization magazine published by the American Geophysical Union (AGU), which focuses on making advancements in Earth and space sciences accessible to a broader audience. 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