Paleoclimates and Pollen Teacher’s Key : Black Hawk, Colorado Data
The table below explains the age of the sediment layers and the quantity of "pollen" (i.e., paper dots or confetti shapes) to be used to make up each sediment sample. The pollen types are coded to the Pollen Key in the student guide. Before distributing the pollen to the sediment samples, you will need to decide which type of confetti represents which type of pollen.The ages of sediment layers are given in "ybp" meaning "years before present". This table is intended for teacher use only. Distributing it to students would give them the answers to the activity.
Sediment
Layer |
Plant
Species |
Color
or Shape Code |
Number
of dots or confetti needed |
1 (150 ypb to present) |
|
|
|
2 (150 ybp to 650 ybp) |
|
|
|
3 (650 to 1,500 ybp) |
|
|
|
4 (1,500 ybp to 3,500 ybp) |
|
|
|
5 (3,500 ybp to 8,000 ybp) |
|
|
|
6 (8,000 ybp to 10,000 ybp) |
|
|
|
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