Experiment
Vis-NIR reflectance spectra of JSC Mars 1 or Dark basalt powders pure, and/or mixed with H2O ice (with ice particles ~4 or ~67 µm, or in a slab), and/or covered with H2O frost
Sub-Experiment
Mineral powders
Sub-Experiment
JSC Mars-1
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (original powder) at 293 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (grains > 400 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (grains 200-400 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (grains 100-200 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (grains < 100 µm) at 293 K
Sub-Experiment
Dark basalt
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (original powder) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (grains > 400 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (grains 200-400 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (grains 100-200 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (grains < 100 µm) at 293 K
Sub-Experiment
Water frost on JSC Mars-1
Sub-Experiment
Water frost on grains > 400 µm
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (grains > 400 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~14 µm thick) on JSC Mars-1 (grains > 400 µm) at ~110 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~33 µm thick) on JSC Mars-1 (grains > 400 µm) at ~110 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~50 µm thick) on JSC Mars-1 (grains > 400 µm) at ~110 K
Sub-Experiment
Water frost on grains < 100 µm
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (grains < 100 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~14 µm thick) on JSC Mars-1 (grains < 100 µm) at ~110 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~33 µm thick) on JSC Mars-1 (grains < 100 µm) at ~110 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~50 µm thick) on JSC Mars-1 (grains < 100 µm) at ~110 K
Sub-Experiment
Water frost on Dark basalt
Sub-Experiment
Water frost on grains > 400 µm
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (grains > 400 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~13 µm thick) on Dark basalt (grains > 400 µm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~52 µm thick) on Dark basalt (grains > 400 µm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~75 µm thick) on Dark basalt (grains > 400 µm) at ~100 K
Sub-Experiment
Water frost on grains < 100 µm
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (grains < 100 µm) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~13 µm thick) on Dark basalt (grains < 100 µm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~52 µm thick) on Dark basalt (grains < 100 µm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~75 µm thick) on Dark basalt (grains < 100 µm) at ~100 K
Sub-Experiment
Intimate mixture of Water ice and JSC Mars-1
Sub-Experiment
Intimate mixture with water ice particles 4.5±2.5 μm
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (original powder) at 293 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 10 wt% Water ice particles (4.5±2.5 μm) at ~90 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 35 wt% Water ice particles (4.5±2.5 μm) at ~90 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 50 wt% Water ice particles (4.5±2.5 μm) at ~90 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 75 wt% Water ice particles (4.5±2.5 μm) at ~90 K
Spectrum
Vis-NIR reflectance spectrum of Water ice particles (4.5±2.5 μm) at ~120 K
Sub-Experiment
Intimate mixture with water ice particles 67±31 μm
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 (original powder) at 293 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 10 wt% Water ice particles (67±31 μm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 35 wt% Water ice particles (67±31 μm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 50 wt% Water ice particles (67±31 μm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of JSC Mars-1 mixed with 75 wt% Water ice particles (67±31 μm) at ~100 K
Spectrum
Vis-NIR reflectance spectrum of Water ice particles (67±31 μm) at ~120 K
Sub-Experiment
Intimate mixture of Water ice and Dark basalt
Sub-Experiment
Intimate mixture with water ice particles 67±31 μm
Spectrum
Vis-NIR reflectance spectrum of Dark basalt (original powder) at 293 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt mixed with 35 wt% Water ice particles (67±31 μm) at ~120 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt mixed with 50 wt% Water ice particles (67±31 μm) at ~120 K
Spectrum
Vis-NIR reflectance spectrum of Dark basalt mixed with 75 wt% Water ice particles (67±31 μm) at ~120 K
Spectrum
Vis-NIR reflectance spectrum of Water ice particles (67±31 μm) at ~120 K
Sub-Experiment
Intimate mixture with water ice particles 67±31 μm and Frost
Spectrum
Vis-NIR reflectance spectrum of Water frost (~80 µm) over Dark basalt mixed with 35 wt% Water ice particles (67±31 μm) at ~120 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~80 µm) over Dark basalt mixed with 50 wt% Water ice particles (67±31 μm) at ~120 K
Spectrum
Vis-NIR reflectance spectrum of Water frost (~80 µm) over Dark basalt mixed with 75 wt% Water ice particles (67±31 μm) at ~120 K
Sub-Experiment
Water saturated frozen soils
Sub-Experiment
JSC Mars-1 (grains < 100 µm)
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (87 wt%) JSC Mars-1 (grains < 100 µm) after 3h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (87 wt%) JSC Mars-1 (grains < 100 µm) after 7h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (87 wt%) JSC Mars-1 (grains < 100 µm) after 14h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (87 wt%) JSC Mars-1 (grains < 100 µm) after 17h of sublimation
Sub-Experiment
Dark basalt (grains < 100 µm)
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (90 wt%) Dark Basalt (grains < 100 µm) after 3h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (90 wt%) Dark Basalt (grains < 100 µm) after 3.5h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (90 wt%) Dark Basalt (grains < 100 µm) after 4h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (90 wt%) Dark Basalt (grains < 100 µm) after 4.5h of sublimation
Spectrum
Vis-NIR reflectance spectrum of Frozen water saturated (90 wt%) Dark Basalt (grains < 100 µm) after 4.6h of sublimation
- Database
- Experimentalists
- Date
- 2017-03-14
Sample inside the thermal vacuum chamber during the measurement.
- Thickness
- 10.0 $\pm$ 1.0 $mm$
- Diameter
- 20.0 $mm$
- Substrate material
- aluminum sample holder covered with a black aluminum tape
- Temperature
- 100.0 $\pm$ 2.0 $K$
- Type
- vacuum
- Fluid pressure
- 20.0 $mbar$
- Number
- 1
- Layers
-
- Layer #1 , 10.0 $mm$
- Title
- Mixture of JSC Mars 1 powder with water ice particles
- Matters
- Sample
- JSC Mars-1 mixed with 35 wt% Water ice particles (67±31 μm) (this sample)
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation mixing The ice particles and the mineral powder are blended together with the help of a vortex mixer while they are repeatedly plunged into liquid nitrogen to avoid the sublimation and metamorphism of ice during the process. Ice and dust particles are mixed at the particles scale. #2 during layer formation layer formation Because porosity influences the reflectance of the samples, we filled the sample holders without compressing the samples: the sample holders are first overfilled and then the excess is removed with a spatula. In this way, we obtain non-compacted samples with flat surfaces. We obtain a non-compacted sample with a flat surface.