IPB

Welcome Guest ( Log In | Register )

19 Pages V  « < 17 18 19  
Reply to this topicStart new topic
The Geology of Jezero Crater, Observations & Findings
serpens
post Feb 19 2022, 11:11 PM
Post #271


Senior Member
****

Group: Members
Posts: 1043
Joined: 17-February 09
Member No.: 4605



The fact that the current floor of the crater is igneous was hardly surprising. Well before the landing it was identified as lava deposit(s) laid down after the lake dried up and significant erosion of the delta had occurred. Guillaumes grind (Roubion coring attempt) was at the bottom of a 16 metres dip well below all other grinds/samples and and still looks sedimentary to my tired old eyes.
Go to the top of the page
 
+Quote Post
Bill Harris
post Aug 26 2022, 06:20 PM
Post #272


Senior Member
****

Group: Members
Posts: 2997
Joined: 30-October 04
Member No.: 105



Current literature:

https://www.science.org/doi/10.1126/sciadv.abo3399


--------------------
Go to the top of the page
 
+Quote Post
serpens
post Aug 27 2022, 03:06 AM
Post #273


Senior Member
****

Group: Members
Posts: 1043
Joined: 17-February 09
Member No.: 4605



A couple more very interesting contributions. Some indications that water in Jezero may have a long history, albeit cyclical.

https://www.science.org/doi/10.1126/science.abo2196

https://www.science.org/doi/10.1126/sciadv.abp8564
Go to the top of the page
 
+Quote Post
Quetzalcoatl
post Aug 27 2022, 08:41 AM
Post #274


Member
***

Group: Members
Posts: 102
Joined: 3-February 20
From: Paris (France)
Member No.: 8747



Hi,

Maybe we can add this one ?

https://www.science.org/doi/10.1126/science.abo2756

Go to the top of the page
 
+Quote Post
Bill Harris
post Aug 27 2022, 04:04 PM
Post #275


Senior Member
****

Group: Members
Posts: 2997
Joined: 30-October 04
Member No.: 105



Good set of papers. Jezero crater has a long and varied history. .I'm looking forward to getting up on the delta surface, the floodplain and river channels. Mars as a whole has had a cyclical climate. Although Mars is presently dry and cold on the surface it is warm snd wet at depth.

--Bill


--------------------
Go to the top of the page
 
+Quote Post
serpens
post Aug 28 2022, 12:35 AM
Post #276


Senior Member
****

Group: Members
Posts: 1043
Joined: 17-February 09
Member No.: 4605



The models for the evolution of Séítah, Máaz etc are compelling. The only query I would have is the timeline for the beginning of cyclical inflow to the crater. That is, did this begin prior to basaltic emplacement because Guillaumes at the deepest exposure seems sedimentary.
Go to the top of the page
 
+Quote Post

19 Pages V  « < 17 18 19
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 29th March 2024 - 03:09 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.