TABLE 12. Mercury concentrations for selected samples from core SB1c, St. Bernard Parish, Louisiana. | ||
St. Bernard core SB1c (location: 29o58"53' N, 89o55"27' W; sampled: 03/20/1996). | ||
Percent compaction (applied linearly): 29.1. | ||
Analysis for mercury by USGS Sediment Partitioning Research Laboratory, Atlanta, Georgia. Ppm, parts per million (equivalent to micrograms per gram). | ||
Sample I.D. |
Corrected depth sample midpoint (cm)1 |
Mercury concen- tration (ppm) |
SB1c-40 | 56.4 | 0.07 |
SB1c-145 | 204.5 | 0.04 |
SB1c-152 | 214.3 | 0.05 |
SB1c-224 | 315.8 | 0.05 |
SB1c-259 | 365.2 | 0.04 |
1Corrected depth equals original depth (midpoint of sample interval) multiplied by 1.41 to correct for compaction. | ||
Source: U.S. Geological Survey Open-File Report 98-36. Carbon storage and late Holocene chronostratigraphy of a Mississippi River deltaic marsh, St. Bernard Parish, Louisiana (H.W. Markewich, ed.). |