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Table T5. Phospholipid ester concentrations, Site U1318. (See table notes.)

Core, section,
interval (cm)		 Depth
(mbsf)		 Total
phospholipids		 Phosphatidylglycerol Phosphatidylethanolamine
Sed.
(ng/g)		 TOC
(µg/g)		 Sed.
(ng/g)		 TOC
(µg/g)		 Sed.
(ng/g)		 TOC
(µg/g)
307-U1318A-
1H-3, 57–69 3.63 54.0 21.6 27.2 10.9 26.8 10.7
2H-3, 57–69 12.83 117.6 69.2 27.9 16.4 89.8 52.8
3H-3, 57–69 22.33 41.4 16.6 8.9 3.6 32.5 13.0
5H-3, 58–70 41.34 56.8 4.9 23.1 2.0 33.7 2.9
7H-3, 63–75 60.39 56.9 5.9 11.5 1.2 45.4 4.7
9H-3, 53–65 79.29 57.0 21.1 14.1 5.2 43.0 15.9
11H-3, 78–90 98.54 14.6 5.4 14.6 5.4 BD BD
13H-3, 58–70 117.34 23.1 6.4 7.8 2.2 15.2 4.2
307-U1318B-
17X-4, 23–35 152.49 BD BD BD BD BD BD
18X-3, 68–80 161.04 BD BD BD BD BD BD
24X-5, 115–127 221.91 BD BD BD BD BD BD
27X-2, 115–127 237.66 BD BD BD BD BD BD

Notes: Sed. = dry sediment extracted, TOC = total organic carbon. BD = below detection limit. Detection limit for phospholipids is difficult to determine because it can vary depending on the phospholipid class and the different sediment matrixes. For a phosphatidylglycerol standard, detection limit of the liquid chromatography–mass spectrometry system used is ~250 ng/mL (5 µL injection volume = ~1.3 ng of target substance).

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