Table 2.

Core quality assessed by microsphere analysis

Core depth (m)Microsphere count (per g)aReduction factorb
SubcoreParings
11.01,577NDd ND
17.7531115,000217
23.2521NDND
29.9BDc 291,000 —e
36.34001,1303
41.870,20084,5001
47.24672,8006
53.62005973
59.71969,15047
66.11307,68059
72.28,334130,00016
78.92,0675340
84.11,46053,30037
90.52,54612,3005
96.91,1831,2601
102.7398107,000269
Avg (all)5,63858,30451
SD (all)17,33482,71988
  • a Average of three independent preparations.

  • b Count of parings divided by count of subcore.

  • c BD, below detection limit (65 microspheres g [wet weight]−1).

  • d ND, no data.

  • e Infinity.