Jezero Delta Campaign, Sols 414-1000, 21 Apr 2022- 23 Dec 2023 Options

[scalbers]

Now I see the funny looking feature in the gap appears to be much closer than I previously thought.

Gigapan - PERSEVERANCE 492
© NASA/JPL-Caltech/MSSS/ASU/NeV-T

[neville thompson]

Gigapan - PERSEVERANCE 502-503
© NASA/JPL-Caltech/MSSS/ASU/NeV-T

[tau]

Sol 510 SuperCam Remote Micro-Imager mosaic with Mastcam-Z context and sol 509 Navcam context

[tau]

Sol 512 SuperCam Remote Micro-Imager
with Mastcam-Z context,
Mastcam-Z left eye multispectral filters 1 to 6 principal components,
and sol 509 Navcam context

[Floyd]

Anyone wish to speculate on the 510 and 512 light tone rock/mineral in the SuperCam images? Seems different from the gypsum seams we have seen elsewhere. In the 512 third image, there is a blue surface patch on the rock on the top right. Was this rock blue area where it was in contact with the blue type rock?

[serpens]

The veins are almost certainly enriched in calcium and sulphur but I've not seen anything on the hydration states of past examples (gypsum, bassanite, anhydrite) or enrichments. Extensive analysis of such veins by Curiosity has identified colour changes in veins due to varied fluid flow enrichments of silicon, iron, copper, manganese, chlorine, zinc, magnesium etc. Basically all we can do is exclaim 'oh look, a vein' and wait for the analytical papers to appear.

[Bill Harris]

Hard to say about that Sol 510-512 light material/ apparent fracture fill. I do think I see some laser spectrometer zaaps, so we'll soon have spectro data on that material.

--Bill

[neville thompson]

Gigapan - PERSEVERANCE 507
© NASA/JPL-Caltech/MSSS/ASU/NeV-T

[neville thompson]

Gigapan - PERSEVERANCE 501
© NASA/JPL-Caltech/MSSS/ASU/NeV-T

[tau]

1. Sol 510 Mastcam-Z left eye filter 0 raw image (black frame omitted)
2. Sol 510 Mastcam-Z left eye multispectral filters 1 to 6 principal components
3. Sol 502 Navcam context

[PaulH51]

Sol 516 Rock core number 12, located between 'Hazeltop' and the abraded patch on 'Wildcat Ridge' outcrop.
Processed R-NavCam

[tau]

Sol 520 SuperCam Remote Micro-Imager mosaic with sol 518 Mastcam-Z context.
Four or five of the ten laser holes hit a coating that is presumably hematite (bluish-gray color in this inmage).
The crack to the right of the coating is filled with a light-colored material, probably a gypsum vein.
A multispectral context is the upper right corner of this image in post #304.

[tau]

Sol 513 Mastcam-Z mosaic of left eye multispectral filters 1 to 6 principal components
and two corresponding left eye filter 0 raw images (black frames omitted)

[tdemko]

Sol 513 Mastcam-Z mosaic of left eye multispectral filters 1 to 6 principal components
and two corresponding left eye filter 0 raw images (black frames omitted)

These are looking like some of the finest-grained sediments yet seen. Important, because organic matter, if present, that was carried by the sediment gravity flows building the delta would be higher in concentration in the deepest, most distal parts of the depositional system. This because of relative lower density, allowing them to remain in suspension for a longer period of time until they are in a part of the lake with lower turbulence, and adsorption and adherence to clay minerals which also remain in suspension longer. Dilute sediment gravity flows, like turbidity currents and hyperpycnal flows, move downslope because of the fine-grained (mud) material in suspension, which creates a density difference with the surrounding ambient water. As this material falls out of suspension and is deposited, the flows slow, and eventually stop. While they are flowing, they can move coarser material (sand and gravel) as bedload and create bedforms (ripples, dunes, antidunes, cyclic steps, and chutes and pools), as well as erode previously deposited material. In modern sublacustrine and submarine fans, turbidity currents can transport fine-grained material and organic material far from its source in deltas and fluvial systems (in the modern Congo/Zaire system >750 km of transport).

[Bill Harris]

"Hyperpycnal", now there is a concept that I've not thought of in years, Tim. And you are absolutely correct, this is where organics, and organics adhering to clays, will end up. Organics, and reactions and interactions with the organics.

--Bill