Review of Greenland Avtivities 2001 - Geus

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Middle Eocene Lower Eocene Upper Paleocene Paly Zones MD (m) TWT (ms) E5 E5a E3 E3a E2c E2 E2b P6/E1? E2a P5 P4 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2500 2450 2400 2350 2300 2250 2200 2150 2100 2050 Hellefisk-1 2000 1950 1900 1850 1800 1750 1700 1650 1600 1550 1500 1450 1400 1350 1300 1250 Sonic 150 50 Gamma Ray 0 100 mid-Eocene unconformity 6000 5750 5500 5250 t. P.o.Z. 5000 t. O.Z. t. F.a.–C.m.Z. 3500 3000 t. T.w.Z. t. S.b.Z. 1000 Middle Eocene Lower Eocene Upper Paleocene Paly Zones MD (m) TWT (ms) P5 E6 E2 E2a E2c P6 E1 P5b P5a P4 1550 2750 2700 2650 2600 2550 2500 2450 2400 2350 2300 2250 2200 2150 2100 2050 2000 1950 1900 1850 1800 1750 1700 1650 1600 Upper Santonian Ikermiut-1 1550 1600 1650 2500 2450 2400 2350 2300 2250 2200 2150 2100 2050 2000 1950 1900 1850 1800 1750 1700 Sonic 150 50 Gamma Ray 0 100 t. Cd.–Cs.Z. 6000 t. P.–o.Z. 5000 4000 3750 t. A.h.Z. t. O.Z. 3500 t. F.a. – C.m.Z 3000 t. S.b..Z 1000 mid-Eocene unconformity Fig. 3. Log panel showing the correlation of the Palaeogene succession in the five wells from offshore West Greenland drilled in the 1970s. The seismic sequences are numbered sequentially (500–10 000); the marine flooding surface within sequence 3000 is used as the datum. It should be noticed that some sequences are very local, especially above Sequence 6000 in the Kangâmiut-1 well. The crossing between the A. hirtus Zone correlation line and the seismic sequence boundaries between Ikermiut-1 and Kangâmiut-1 may be explained by a lower resolution of the former. The palynological zonation adopted here is based on that of Bujak & Mudge (1994) and Mudge & Bujak (1996a, b). Modified from Dalhoff et al. (2001). SS500 and older seismic sequences are as old as this, and the extent of an equivalent to the Marraat oil source rock is restricted to the extent of SS500 (Chalmers et al. 2001a, figs 8, 31). Acknowledgements Funding of the multidisciplinary project Palaeogene southern West Greenland was provided by the Danish Energy Research Programme (ENS J.nr. 1313/99-0025) and by the Geological Survey of Denmark and Greenland. 94
M. Eocene Upper Paleocene Lower Eocene Kangâmiut-1 Paly Zones MD (m) TWT (ms) E6 E2 E3 E4 E2a E2b E2c E3a E3b E3c E4c E1 P5 P6 P4 2550 3600 3550 3500 3450 3400 3350 3300 3250 3200 3150 3100 3050 3000 2950 2900 2850 2800 2750 2700 2650 2600 2900 2850 2800 2750 2700 2650 2600 2550 2500 2450 2400 2350 2300 2250 2200 2150 2100 2050 3650 Turonian – L. Santonian Sonic 150 50 Gamma Ray 0 100 10000 9500 9000 t. P.w.Z. 8500 8000 6000 t. A.h.Z t. P.o.Z 5000 t. O.Z. 3500 t. F.a. – C.m.Z 3000 t. T.w.Z t. S.b.Z 1000 500 mid-Eocene unconformity Microfossil zonation: t.Cd. – Cs.Z.: top Cenodiscus–Cenosphaera Zone t.P.o.Z.: top P. ovata Zone t.A.h.Z.: top A. hirtus Zone t.O.Z.: top Ostracod Zone t.F.a. – C.m.Z.: top F. antiqua – C. morsianus Zone t.T.w.Z.: top T. wittana Zone t.S.b.Z.: top S. beccariiformis Zone t.P.w.Z.: top P. wilcoxensis Zone. Lower Eocene Upper Paleocene L. Palaeocene Paly Zones MD (m) TWT (ms) E2 E3 E2b E3b E3c E2a E1 P6 P4 P5 P2/P3a? 1850 2550 2500 2450 2400 2350 2300 2250 2200 2150 2100 2050 2000 1950 1900 Nukik-2 1500 1900 1850 1800 1750 1700 1650 1600 1550 1950 Sonic 150 50 Gamma Ray 0 100 8500 6000 5000 3500 3000 t. S.b.Z. 1000 500 mid-Eocene unconformity U. Paleocene Lower Eocene Paly Zones MD (m) TWT (ms) E3 E3a E3b E2 E2b E2a P6/E1? P5 5000 1950 1550 2350 2300 2250 2200 2150 2100 2050 2000 Seismic sequence boundary Maximum flooding surface Micropalaeontological correlation surface Lithology Shale Sandstone Limestone Volcanic Tuff Acidic intrusive igneous rock Nukik-1 1650 1600 1700 1750 1800 Sonic 150 50 Gamma Ray 0 100 mid-Eocene unconformity 8500 t. A.h.Z 6000 5000 3500 3000 1000 References Balkwill, H.R. 1987: Labrador Basin: structural and stratigraphic style. In: Beaumont, C. & Tankard, A.J. (eds): Sedimentary basins and basin forming mechanisms. Canadian Society of Petroleum Geologists Memoir 12, 17–43. Bojesen-Koefoed, J.A., Christiansen, F.G., Nytoft, H.P. & Pedersen, A.K. 1999: Oil seepage onshore West Greenland: evidence of multiple source rocks and oil mixing. In: Fleet, A.J. & Boldy, S.A.R. (eds): Petroleum geology of Northwest Europe: Proceedings of the 5th conference, 305–314. London: Geological Society. Bujak, J.P. & Mudge, D. 1994: A high-resolution North Sea Eocene dinocyst zonation. Journal of the Geological Society (London) 151, 449–462. Chalmers, J.A. & Pulvertaft, T.C.R. 2001: Development of the continental margins of the Labrador Sea: a review. In: Wilson, R.C.L., Whitmarsh, R.B. & Froitzheim, N. (eds): Non-volcanic rifting of continental margins: a comparison of evidence from land and sea. Geological Society Special Publication (London) 187, 77–105. Chalmers, J.A., Pulvertaft, T.C.R., Christiansen, F.G., Larsen, H.C., Laursen, K.H. & Ottesen, T.G. 1993: The southern West Greenland continental margin: rifting history, basin development, and petroleum potential. In: Parker, J.R. (ed.): Petroleum geology of Northwest Europe: Proceedings of the 4th conference, 915–931. London: Geological Society. 95
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GEOLOGY OF GREENLAND SURVEY BULLETI
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Geology of Greenland Survey Bulleti
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Contents Numbers of articles corres
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■ ■ ■ ■ ■ ■ ■ ■ ■
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Canada Pituffik O 1 Thule Air Base
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Publications A complete list of geo
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Canada Greenland Greenland Inland I
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northern Nagssugtoqidian orogen (SN
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western to the north-eastern corner
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group consists of conjugate sets of
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y pure shear. Coincidence of the or
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The Precambrian supracrustal rocks
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68°25′ 52° 68°25′ BIF 0 3 km
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Fig. 4. Dolomitic marble in the sou
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Bugt (Fig. 1; Henderson 1969). The
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Keto, L. 1962: Aerial prospecting b
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▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲
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increases towards the south. We obs
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Kalsbeek, F. & Taylor, P.N. 1999: R
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Canada Nuussuaq 0 50 km PROTEROZOIC
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deposit. Descriptions of the differ
Page 46 and 47: Pegmatites The gneisses throughout
Page 48 and 49: tacts with quartzo-feldspathic coun
Page 50 and 51: Geological correlation of magnetic
Page 52 and 53: Fig. 2. The hand-held magnetic susc
Page 54 and 55: Susceptibility distribution (%) Sus
Page 56 and 57: have a reducing effect, which hinde
Page 58 and 59: ancy between the susceptibility val
Page 60 and 61: 67° Sisimiut • 53° 52° 51° 50
Page 62 and 63: Table 1. Range of Nb concentrations
Page 64 and 65: chemical composition - may indicate
Page 66 and 67: Concentration/C1 chondrite 100.00 1
Page 68 and 69: Menzies, M.A. & Hawkesworth, C.J. (
Page 70 and 71: 72°30´ Aeromag 2001 50 km Upernav
Page 72 and 73: 56° 54° 52° 72° 72° nT 71°30
Page 74 and 75: Conclusions The aeromagnetic survey
Page 76 and 77: 53° 51° Inland Ice Greenland 72°
Page 78 and 79: On the south coast of Nuussuaq, wes
Page 80 and 81: Fig. 5. Blocks and boulders in the
Page 82 and 83: 2000 SW NE 1500 Surface trace 1985
Page 84 and 85: 1979). Along other sections of the
Page 86 and 87: Petroleum geological activities in
Page 88 and 89: Seismic acquisition during summer 2
Page 90 and 91: Other petroleum geological work Alt
Page 92 and 93: A multidisciplinary study of the Pa
Page 94 and 95: Seismic interpretation The grid of
Page 98 and 99: Chalmers, J.A., Dahl, J.T., Bate, K
Page 100 and 101: 95-06 ▲ ▲ 58° 95-12 95-10 56°
Page 102 and 103: 70° 71° 60° 2000 2000 2400 400 1
Page 104 and 105: Storey, M., Duncan, R.A., Pedersen,
Page 106 and 107: 24° 100 km 30° 27° 21 ° Jameson
Page 108 and 109: Oligocene Krabbedalen Fm Eocene Bop
Page 110 and 111: grading. Bivalve shell material is
Page 112 and 113: References Birkenmajer, K. 1972: Re
Page 114 and 115: B A 72° Palaeogene basalts Gl 50 k
Page 116 and 117: a b c d e f g h 20 µm i j k l Fig.
Page 118 and 119: offshore South-East Greenland, onsh
Page 120 and 121: ▲ Albert Heim Bjerge Wordie Gletc
Page 122 and 123: T D A CW NS placed the lowermost c.
Page 124 and 125: is abundant and highly diverse, and
Page 126 and 127: The Heimbjerge Formation comprises
Page 128 and 129: Late Permian carbonate concretions
Page 130 and 131: m 25 20 15 B3 L2 B2 Fig. 3. Simplif
Page 132 and 133: (2001), who pointed out the restric
Page 134 and 135: Piasecki, S. 1984: Preliminary paly
Page 136 and 137: 66° 68° • • • • • • 7
Page 138 and 139: absent at Tikeraussaq where a postu
Page 140 and 141: 72° 70° 68° 66° Sample locality
Page 142 and 143: Table 2. Summary of selected elemen
Page 144 and 145: Concluding remarks Observations dur
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Lake-catchment interactions with cl
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lakes. As in earlier reports (e.g.
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Discussion Global climate models pr
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Glaciological investigations on ice
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Fig. 2. The new one-mast design of
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A B N 20 km 1993 1995 Fig. 5. Satel
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Krabill, W., Frederick, E., Manizad
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2001/47: Calibration of stream sedi
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Hanghøj, K., Kelemen, P., Bernstei
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Danmarks og Grønlands Geologiske U
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GEOLOGY OF GREENLAND SURVEY BULLETI
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