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Bottom Sampling

A number of 14 box corers, 7 grabs, 6 SW104 and 2 gravity cores were performed. Grabs and boxc-corer bulk after subsampling were washed and sieved and the box-corer were subsampled with cores.

Table 5 shows sample description.


Table 5: Samples on cruise ENVADRI2011. BC=box-corer, G=grab., C=Core
STA CTD LON LAT DEPTH REC DATE DESCRIPTION
    ddmm.xxx m cm dd/mm/2011  
G01-PA 007 1333.969 4537.066     08/04 07:38 Paloma, Silt and clay
SW01-PA 007 1333.958 4537.060   117 08/04 07:50  
G02   1238.341 4520.706     09/04 04:54 CAVA-B, sieved for benthos
G03   1238.388 4520.729     09/04 05:07 CAVA-B
G04 023 1229.528 4518.049     09/04 06:15 CAVA-A
G05-AA 024 1230.284 4518.973     09/04 08:13 Acqua Alta, fine, medium sand, sieved for benthos
BC01-AA 024 1230.290 4518.973   12 09/04 08:41 Acqua Alta, Two sub cores
G06-C10 025 1245.576 4515.051     09/04 12:30 sieved for benthos
SW02-C10 025 1245.585 4515.046     09/04 12:51 Empty
BC02-C10 025 1245.591 4515.038     09/04 13:10 C10, medium and coarse sand. presence of shell fragments and worms
SW03-S1   1227.312 4444.589   121 10/04 20:23  
G07-S1 063 1227.380 4444.462     11/04 06:17 S1, mud, silty clay, plastic top, gray/brown with black bands, tubes and worms 2-10 cm, sieved for benthos
SW04-S1   1227.448 4444.507   35 11/04 06:35 Core for incubator
SW05-S1   1227.519 4444.479   35 11/04 07:09 Core for incubator
SW06-S1   1227.395 4444.498   35 11/04 07:34 Core for incubator
BC03-E1 083 1234.255 4408.585     12/04 06:35 E1, Box-Corer sieved for benthos
BC04-E1   1234.226 4408.617   18 12/04 06:55 E1, sub-sampled into two smaller cores, dark-grey Compact Clay (silty) . Top 2 cm less compact color brown. 10-15 cm darker sediment. Presence of shell fragments and anoxis levels
MNG-BC01 116 1831.225 4220.623 128 25 16/04 11.29 Top, hydrated silty sand, olive green in color. From 5 cm to bottom coarse sediment, dark gray sand. Many fresh and reworked shell fragments Strongly bioturbated. .
MNG-BC02 118 1827.844 4214.366 205 24 16/04 13.31 Top-3 cm, silty/silty clay hydrated, olive green/gray in color, hydrate and oxidated. Silty clay plastic sediment fro 3 cm to bottom. Lighlty bioturbated. Few shell fragment
MNG-BC03 123 1919.323 4151.540 14 15 17/04 10.30 Silty clay sediment column, hydrate and lighlty oxidated in the first 3/4 cm, olive green at the top, gray-green fro 4 to bottom. Close to the bottom decrease the coarse sediment. Lighlty bioturbated. Few shell fragment.
MNG-BC04 124 1916.891 4149.588 51 27 17/04 11.16 Top- 3 cm hydrated yallow-green silty clay, lightly oxidated. 4 cm bottom fine clay sediment, gray-green. Lightly bioturbated. Black organic matter accumulation along the sediment column
MNG-BC05 125 1914.232 4147.040 76 33 17/04 12.03 Clay green-gray uniform sediment. Bioturbated along all the sediment column, worm still the bottom. Top 3 cm is more hydrated. Reworked shell fragment close to the bottom
MNG-BC06 126 1910.759 4143.845 86 30 17/04 12.58 On the top hydrated olive green clay sediment. From 4 to 19 cm green-gray clay Bioturbated sediment. From 19 to bottom more hydrated and lightly plastic and fine sediment
MNG-BC07 127 1907.246 4140.755 99 39 17/04 14.00 Top-3 cm, olive green hydrated silty clay. 3cm -Bottom clay bioturbated. Some fresh shell probably still alive.
MNG-C08 129 1912.413 4152.968 42 163 18/04 06.46 top-4 cm very hydrated yellow brown silty clay; from 4cm to bottom plastic gray/brown silty clay. Bioturbated. Close to the bottom fragments of reworked shells.
MNG-BC09 129 1912.386 4152.964 43 25 18/04 07.04 Top 3 cm is more hydrated. Clay, color green gray. Lightly bioturbated.
MNG-C10 130 1904.860 4158.936 53 174 18/04 08.21 Top Hydrated silty clay; section cut gray silty clay.
MNG-BC11 130 1904.890 4158.930 54 27 18/04 08.27 All the sequence is composed by fine green gray clay sediments. Top 3 cm is more hydrated and bioturbated.



next up previous contents
Next: Buoy Maintanance Up: INITIAL RESULTS Previous: Oceanography   Contents
2011-05-28