Atm Loss from Ar Isotopes
CO2 Inventory & Terraforming
Drying of Mars
100

The ratio studied by MAVEN for the Jakosky (2017) paper.

What is the 38Ar/36Ar ratio?

100

This process likely both brought and removed atmosphere during the Noachian, making it's net effect challenging to estimate.

What are/is impacts/bombardment?

100

This is the thickness an amount of water would have if it were spread evenly over Mars (words, not acronym).

What is Global Equivalent Layer?

200

Characteristic about argon makes it an ideal gas for studying atmospheric loss?

What is chemically inert?

What is it has one sputtering mechanism?

What is it has measurable diffusive separation?

200

Carbon dioxide reservoir that would be the easiest to reach if terraforming Mars were to happen

What are the polar ice caps?

200

Mars lacks this, causing crustal hydration to be a permament process unlike on Earth.

What are plate tectonics?

300

Indicator of gains to space

What is light-isotope enrichment?

300

This non-chemical reaction adheres CO2 molecules to regolith particles on or near the surface.

What is adsorption?

300

This is the size of the Noachian ocean proposed at the beginning of Scheller 2021.

What is 100-1500m GEL?

400

Instrument that directly measures the composition of and isotopes of neutral gases and ions in the upper atmosphere during deep-dip orbits.

What is the Neutral Gas and Ion Mass Spectrometer (NGIMS)?

400

The least likely scenario for determining the amount of carbon dioxide that can be sequestered when assessing a carbonate reservoir size.

What is the carbonate unit extent extrapolated to include the entire Isidis melt sheet?

400

This is the ratio that constrains the amount of water that could have been lost to space from the beginning of the Noachian to now.

What is the D/H ratio?

500
The core equation used to calculate how isotopic reservoirs change as gas is lost.

What is the Rayleigh equation?

500

The crater where deep carbonates were first identified on the central peak.

What is the Leighton Crater?

500

These three reservoirs make up the Exchangeable Reservoir used by the authors to model the currently available water on Mars.

What are the atmosphere, ice, and liquid water?