the Expedition ARKTIS-XIX/4 of the research vessel POLARSTERN ...

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58 lake core no. latitude longitude water depth type penetration Duck Lake Lz1103-3 N 76°25’15’’ W 018°45’00’’ 6.4 m gravity corer 0-48 cm Duck Lake Lz1103-4 N 76°25’15’’ W 018°45’00’’ 6.4 m gravity corer 0-40 cm Duck Lake Lz1103-5 N 76°25’15’’ W 018°45’00’’ 6.4 m piston corer 5-280 cm Duck Lake Lz1103-6 N 76°25’15’’ W 018°45’00’’ 6.4 m piston corer 5-294 cm Duck Lake Lz1103-7 N 76°25’15’’ W 018°45’00’’ 6.4 m piston corer 50-331 cm Hjort Lake Lz1104-1 N 76°25’59’’ W 018°45’41’’ 6.1 m gravity corer 0-70 cm Hjort Lake Lz1104-2 N 76°25’59’’ W 018°45’41’’ 6.1 m gravity corer 0-53.5 cm Hjort Lake Lz1104-3 N 76°25’59’’ W 018°45’41’’ 6.1 m gravity corer 0-43 cm Hjort Lake Lz1104-4 N 76°25’59’’ W 018°45’41’’ 6.1 m gravity corer 0-45 cm Hjort Lake Lz1104-5 N 76°25’59’’ W 018°45’41’’ 6.1 m russian corer 0-240 cm Hjort Lake Lz1104-6 N 76°25’59’’ W 018°45’41’’ 6.1 m russian corer 0-240 cm Goose Lake Lz1105-1 N 76°26’36’’ W 018°48’14’’ 7.4 m gravity corer 0-69 cm Goose Lake Lz1105-2 N 76°26’36’’ W 018°48’14’’ 7.4 m gravity corer 0-68 cm Goose Lake Lz1105-3 N 76°26’36’’ W 018°48’14’’ 7.4 m gravity corer 0-49 cm Goose Lake Lz1105-4 N 76°26’36’’ W 018°48’14’’ 7.4 m russian corer 0-180 cm Goose Lake Lz1105-5 N 76°26’36’’ W 018°48’14’’ 7.4 m russian corer 0-180 cm Fox Lake Lz1106-1 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-51.5 cm Fox Lake Lz1106-2 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-57 cm Fox Lake Lz1106-3 N 76°15’06’’ W 018°41’32’’ 54.8 m piston corer 2-64 cm Fox Lake Lz1106-4 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-54 cm Fox Lake Lz1106-5 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-59 cm Fox Lake Lz1106-6 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-47 cm Fox Lake Lz1106-7 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-60 cm Fox Lake Lz1106-8 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-72 cm Fox Lake Lz1106-9 N 76°15’06’’ W 018°41’32’’ 54.8 m gravity corer 0-54 cm Fox Lake Lz1107-1 N 76°15’10’’ W 018°40’58’’ 14.0 m gravity corer 0-58 cm Fox Lake Lz1107-2 N 76°15’10’’ W 018°40’58’’ 14.0 m gravity corer 0-35 cm Fox Lake Lz1108-1 N 76°15’02’’ W 018°40’58’’ 10.0 m gravity corer 0-2 cm Fox Lake Lz1109-1 N 76°15’04’’ W 018°41’10’’ 19.5 m gravity corer 0-2 cm Fox Lake Lz1110-1 N 76°15’07’’ W 018°41’09’’ 30.0 m gravity corer 0-2 cm Fox Lake Lz1111-1 N 76°15’08’’ W 018°41’13’’ 40.0 m gravity corer 0-2 cm Fox Lake Lz1112-1 N 76°15’09’’ W 018°41’20’’ 49.5 m gravity corer 0-2 cm Fox Lake Lz1115-1 N 76°15’06’’ W 018°42’45’’ 0.4 m hand 0-18 cm Fox Lake Polar Bear Lz1115-2 N 76°15’06’’ W 018°42’45’’ 0.4 m hand 0-19 cm Lake 1 Polar Bear Lz1113-1 N 76°14’10’’ W 018°43’48’’ 14.4 m gravity corer 0-47.5 cm Lake 1 Polar Bear Lz1113-2 N 76°14’10’’ W 018°43’48’’ 14.4 m gravity corer 0-48 cm Lake 1 Polar Bear Lz1113-3 N 76°14’10’’ W 018°43’48’’ 14.4 m gravity corer 0-50 cm Lake 1 Polar Bear Lz1113-4 N 76°14’10’’ W 018°43’48’’ 14.4 m russian corer 0-70 cm Lake 1 Polar Bear Lz1113-5 N 76°14’10’’ W 018°43’48’’ 14.4 m russian corer 0-100 cm Lake 3 Lz1114-1 N 76°14’01’’ W 018°46’12’’ 12.3 m gravity corer 0-22 cm Geographical Society Ø Loon Lake Lz1116-1 N 72°53’16’’ W 022°08’22’’ 11.7 m gravity corer 0-81 cm Loon Lake Lz1116-2 N 72°53’16’’ W 022°08’22’’ 11.7 m gravity corer 0-84.5 cm Loon Lake Lz1116-3 N 72°53’16’’ W 022°08’22’’ 11.7 m gravity corer 0-49 cm Loon Lake Lz1116-4 N 72°53’16’’ W 022°08’22’’ 11.7 m gravity corer 0-45 cm Loon Lake Lz1116-5 N 72°53’16’’ W 022°08’22’’ 11.7 m piston corer 0-286 cm Loon Lake Lz1116-6 N 72°53’16’’ W 022°08’22’’ 11.7 m piston corer 0-285 cm Loon Lake Lz1116-7 N 72°53’16’’ W 022°08’22’’ 11.7 m piston corer 225-526 cm Loon Lake Lz1116-8 N 72°53’16’’ W 022°08’22’’ 11.7 m piston corer 475-777 cm Loon Lake Lz1116-9 N 72°53’16’’ W 022°08’22’’ 11.7 m piston corer 725-1014 cm Loon Lake Lz1116-10 N 72°53’16’’ W 022°08’22’’ 11.7 m piston corer 225-528 cm Tab. 6.2-1: Sediment cores from lakes on Store Koldewey and Geographical Society Ø.
The sediment basis was formed in most lakes by a stiffy diamicton or by massive sand layers. Topwards, particularly in the deeper parts of Melles and Fox Lake, the sediments were mainly composed of clastic matter with little contents of organic matter. In the shallower lakes, and also in the shallower parts of Melles and Fox Lake, a higher content of organic matter and partially interspersed moss and algae layers were observed. Nevertheless, the proportion of fine clastic matter remained dominating in these sediments. Surface sediment cores from some of the studied lakes were immediately opened Fig. 6.2-1: Surface sediment core from Duck Lake. The dark horizons are formed by 1-2 cm thick moss layers. and described after their recovery (Fig. 6.2-1). A lamination of the sediments occurred partially, but not throughout the entire opened sediment sequences. A sharp boundary between brownish sediments at the top, likely representing aerob conditions, and greyish sediments below, likely representing anaerob conditions, was observed between c. 1 and 5 cm in most opened cores. At cores Lz1107 and Lz1108 from Fox Lake, however, this transition occurred in a sediment depth of c. 40 cm. Probably, the sediment contains only very small amounts of organic matter or the water column is completely oxygen saturated over a longer period at these locations. Fossil fauna remains were macroscopically not seen in the sediment cores, although white particles, probably shell remains, were observed in a sediment depth of c. 520 cm at core Lz1116-7 from Loon Lake. The occurrence of these shell remains has to be confirmed after the core opening later in the laboratory. Living chironomid larvae were common at the sediment surface in a few lakes. For the transport, the cores were split, if necessary, into segments of up to 1 m length and kept at +4°C. Sediment cores, which were intended to analyse the bacterial activity and the bacteria assemblages, were frozen to –18°C onboard of RV “Polarstern”. 59
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the Expedition ARKTIS-XIX/4 of the
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1 Cruise summary W. Jokat The exped
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6 1.1 Wetterverlauf ARK XIX/4a Bei
Page 10 and 11: 8 noch vor der Küste, fern davon a
Page 12 and 13: 10 northerly wind increased steadil
Page 14 and 15: 12 In the latest stages of the proj
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Page 18 and 19: Station Typ Extra Lat Long Höhe [m
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Page 22 and 23: Date Flight Start Time End Time No
Page 32 and 33: 30 Preliminary results Along profil
Page 34 and 35: 32 In addition to the deep seismic
Page 36 and 37: 34 Fig. 2-5: Flight statistics for
Page 38 and 39: 36 Fig. 3-1: Seafloor topography of
Page 40 and 41: 38 In total, the PARASOUND system o
Page 42 and 43: 40 Figure 4.1-3: Example of PARASOU
Page 44 and 45: 42 Station Latitude Longitude Date
Page 46 and 47: 44 After PCR was finished, samples
Page 48 and 49: 46 Potsdam Lake (Shannon Island) Sc
Page 50 and 51: 48 In den Schmelzwassertümpeln kon
Page 52 and 53: Temp. Sal. Tiefe max. Tiefe Trübe
Page 54 and 55: 52 Store Koldewey Store Koldewey is
Page 56 and 57: 54 In the shallow ponds the hydrolo
Page 58 and 59: 56 The low amounts of solubles in t
Page 62 and 63: 60 6.3 Diatom phytoplankton and phy
Page 64 and 65: 62 Generally, all sampled benthic s
Page 66 and 67: 64 shaped profile at the top were i
Page 68 and 69: 66 depth horizon description sample
Page 70 and 71: 68 measured in the field, and the c
Page 72 and 73: 70 Summary of results The summit pl
Page 74 and 75: 72 Pre-Holocene shell material Pre-
Page 76 and 77: 74 Christensen, T.R. (1993): Methan
Page 78 and 79: 76 No EVK2-2001-00215 (ASOF-N). The
Page 80 and 81: 78 Altimeters Model 2110-2, SN 189
Page 82 and 83: 80 Mooring Latitude Longitude Water
Page 84 and 85: 82 Mooring Latitude Longitude Water
Page 86 and 87: 84 30° W 20° W 30° W Greenland 2
Page 88 and 89: Fig. 7-4: Vertical transects of pot
Page 90 and 91: 88 8 Bericht zur akustischen Vermes
Page 92 and 93: 90 Quality control sheet - Profile
Page 94 and 95: 92 Quality control sheet - Profile
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142 Beteiligte Institutionen / Part
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