Conventional sub-sampling

5
Conventional sub- sampling

description

Conventional sub-sampling. We like this!. Sub-sampling from laminated sediment:. We don’t like this. Because…. 31 Dec. 24:00 pm. 01 Jan. 00:00 am. autumn. 31 Dec. 24:00 pm. spring. 01 Jan. 00:00 am. Impossible. Possible!!. - PowerPoint PPT Presentation

Transcript of Conventional sub-sampling

Page 1: Conventional sub-sampling

Conventional sub-sampling

Page 2: Conventional sub-sampling

We like this!We don’t like this.

Sub-sampling from laminated sediment:

Page 3: Conventional sub-sampling

Because…

31 Dec. 24:00 pmspringautumn

31 Dec. 24:00 pm

01 Jan.00:00 am

01 Jan. 00:00 am

Impossible Possible!!

Parallel cutting produces seasonally-biased sub-samples unless you make this perfect cutting (which is not possible).

Diagonal cutting (which is possible) is almost equivalent to the perfect cutting in terms of representation of seasons.

Page 4: Conventional sub-sampling

SG06 sub-sampling-1

Splitting core into bars by LL-channel,

Page 5: Conventional sub-sampling

SG06 sub-sampling-2

then slicing bars diagonally by centi-slicer.