Thanks,

Kim:wave:

- Thread starter mamakmoon
- Start date

Thanks,

Kim:wave:

The way I'm looking at it (maybe I'm over-simplifying it?) there are 4 excavation units, each having a quantity and variety of stone artifacts. To avoid comparing apples to oranges, let's say the following data is available (fictional):

Unit------Depth--------Quantity

1---------100------------10

2---------220------------6

3---------175------------11

4---------235------------10

For each unit, divide quantity by depth to get an artifact "rate"

10/100 = 0.100

6/220 = 0.027

11/175 = 0.063

10/235 = 0.043

Even though unit 1 is "tied" for second place in terms of quantity, its yield per foot of digging is the highest....

You are interested in the DENSITY of artifacts, i.e., how many artifacts

per cubic meter of matrix.

Let's say you have a 20 cm-thick level. THen you have .2 cubic meters of

dirt (1 m x 1m x .2 m = .2 m3) If there are 22 artifacts in it, the

density is 22 artifacts/.2m3 earth = 110 artifacts/m3.

If you have a level that has 64 artifacts and is 40 cm thick, the density

is: 64/(1 x 1 x .4) = 64/.4 = 640/4 = 160 artifacts/m3.

*DON'T* divide percents this way. Just look at raw numbers.

--The previous comment was very close