Editing C-Survey (section)

==Geological Survey==
Before you can start [[mining]] other [[bodies]] (planets, moons, asteroids or comets), you have to complete a geological survey from orbit first. Surveying a body requires a vessel equipped with [[Geological Survey Sensors]]. An estimated 5% of all bodies contain [[mineral]]s. For bodies with a diameter of 4000km or more (i.e., slightly larger than the Moon), there is also a chance that the planet will be able to increase its available minerals by conducting a ground survey. Ground surveys require [[C-Ground Units|ground units]] with the Geosurvey Equipment component, and will require as many survey points as the initial space survey did. 

Normal mineral generation (at system body creation) has three phases:
1) An overall roll for the potential for minerals to be present, based on radius, density and system abundance. If this roll fails, the body has no minerals.
2) A roll for each type of mineral to be present, based on density and abundance. Duranium has twice the chance of any other mineral.
3) A roll for the accessibility of each mineral generated in step 2). This is based on radius.

Once the ground survey is completed (assuming potential is Minimal or higher), a new mineral generation roll will take place. For this roll:
Step 1 is the same regardless of the potential.
Step 2 is modified by the potential. Minimal is 25% normal, Low is 33% normal (same as teams in VB6), Good is 50% normal, High is 100% normal and Excellent is 200% normal.
Step 3 is modified by High (+ 0.1) and Excellent (+ 0.2). All others are same as normal.

If a deposit of a mineral that didn't previously exist is generated by the ground survey, that deposit is added to the system body.
If a mineral deposit is generated by the ground survey and a deposit of that mineral already exists on the system body, the existing deposit is changed to match the amount or accessibility (or both) of the ground survey deposit if the latter is greater.

The chances that an eligible body (4000 km diameter) will have ground survey potential is equal to:
None 60%, Minimal 20%, Low 10%, Good 6%, High 3%, Excellent 1%. [https://aurora2.pentarch.org/index.php?topic=8495.msg107705#msg107705]

The quality of the geo-sensor (normal, improved, advanced, phased) and the capabilities of the ground surveyors affect only the time required, not the chance of finding minerals. You can't get more than two chances of discovering minerals - one for the orbital search, one for the ground survey.

Typically, larger bodies contain more minerals when discovered, but they usually have lower accessibility. Comets have high chances of containing minerals and usually have very high accessibility, but the quantities are typically quite low. 

Gas giants can only ever contain Sorium, and cannot be given a follow-up ground survey. 

===Survey results===
You will be notified when a system has been completely surveyed. 

There are several ways to find out which bodies have been surveyed and what has been found:
* Selecting "Show Surveyed Bodies" from the Minerals tab in the system map window. Here you can also see how much mineral reserves have been found, and their accessibility (i.e. possible mining rate).
* Going to the System View window (F9): the first column shows either nothing (not surveyed yet), an "S" (surveyed but nothing found) or "M" (minerals present). 
* The [[Mineral Survey]] window provides a search function for minerals you've discovered. 
Finally, the Summary tab of the Population & Production window tells you whether a geo-team search on the colony has been completed yet.