There are two possible answers to this, although you probably won't like either of them.
Answer 1: They don't. Falcon 9 only lands on prepared landing sites and Starship doesn't exist yet.
Answer 2: We don't know. Falcon 9 will never land on non-prepared landing sites and Starship iterates so fast that it is impossible to predict what it will look like in 4 ...
TL, DR: Olivine is a specific type of mafic or ultra-mafic mineral that is specifically identified in some parts of the overall mafic floor of the crater. The olivine is seen in specific areas of which the indicated "olivine-bearing floor" is most prominent.
Mafic: More than just olivine
In mineralogical terms, "mafic" is a more ...
After carefully cross-referencing the landing ellipse picture with this topographic map provided by ESA, it looks like the cliffs in the center of the ellipse are about 50 meters tall, and no more than 100 meters.
Falcon 9 likely could land on a somewhat uneven surface because its leg-base is rather wide and the legs contain one-time-use crush-able aluminum honeycomb impact absorbers. Still, this surface would need to be rather hard and flat to avoid being excavated by the landing engine's exhaust plume and the massive weight of F9 sinking it into the ground too much. ...
A first look at: Moon Landings on Moon Map shows: beside Apollo 12 and Surveyor 3 there is just one candiate: Apollo 11.
Apollo 11 is near Surveyor 5 and Ranger 8.
Have a quick google check for S5:
Less than two years later the first crewed landing, Apollo 11, would land 25 km south-southwest of Surveyor 5.
Source Wikipedia Surveyor 5
And for R8:
Credit: NASA/JPL/University of Arizona/USGS
Click on the image, and then again for a closer view.
The image above is a part from HiRISE,Digital Terrain Models and shows a colored elevation map of the eastern part of the delta deposit.
(Purple is -2679 m, brown is -2388 m, so a full-scale elevation difference of about 300 m.)
I would say the shaded, south ...
Breaking News! (01:24 UTC June 8, 2021)
China releases new Mars image taken by Tianwen-1 probe, CCTV (English) Article shows before and after picture of the landing and associated debris:
...taken by a high-resolution camera installed on the orbiter of Tianwen-1 at 6 p.m. on June 2 (Beijing Time)
Now to feature map this with HiRISE data for some more ...
The reason why the landing pad is so close to the launchpad is for SpaceX to be able to launch rockets as frequently as possible. In the announcement of Starship and Superheavy, we see that SpaceX is planning to launch a rocket more than once in a day as they are planning to create an Interplanetary transport system. For this purpose, the landing pad has to ...