Lab 6

Hi, Maja, can I say the horizon with both A and B horizon properties is AB for Q 2d? And for 2a, should I count it as LFH or Ah?

Re 2b - All so called transitional horizons have properties that integrate 2 horizons above and below it.

In question 2a it is specified that horizon is sandy; hence, that is a mineral horizon and as such it cannot be LFH since those are organic horizon. Ah horizon has a soil formation process (accumulation of organic matter occurring in it, as signified by the letter "h"). Consequently, Ah is not the correct answer for question 2a. You have to think of a mineral horizon in which there is no soil development or no soil formation process.......

Hey Maja, for 2 a) could E be a good answer? It is a mineral horizon used in the united states, and I don't think any soil development occurs on that horizon given that mostly quartz is left behind. Or should we only consider A, B, and C as the mineral horizons.

E (as used in the US soil classification system) is the same as Ae (in Canadian system). But regardless of the system, E (or Ae) is the horizon characterized by the soil process of eluviation (or leaching out of either clay particles and/or organic matter) indicating that soil development is taking place. Hence, E (or Ae) cannot be the answer for question 2a. The answer is among A, B and C horizons........