GEUS Bulletin no 5.pmd
GEUS Bulletin no 5.pmd GEUS Bulletin no 5.pmd
Triassic Pelion Fm Lower sandstone unit Spath Plateau Mb 56 120 110 100 90 80 70 60 50 40 30 20 10 0 F M C Mud Sand Gr Pelion Fm Payer Dal Fm Bernbjerg Fm Spath Plateau Mb Ugpik Ravine Mb 250 240 230 ? 220 210 200 190 180 170 160 150 140 130 No exposure F M C Mud Sand Gr GEUS Bulletin no 5.pmd 56 29-10-2004, 11:14 Cretaceous Bernbjerg Fm m 360 350 340 330 260 No exposure No exposure F M C Mud Sand Gr
Sedimentary structures Biota Structureless Trough cross-bedding Planar and trough cross-bedding Structureless Planar and trough cross-bedding Faint ripple form sets Cross-lamination Wave ripple cross-lamination Faint ripple form sets Wave ripple cross-lamination Hummocky cross-stratification Parallel lamination Pebbles Mudstone drapes and clasts Plant fragments Log Bivalve Ammonite Belemnite Miscellaneous features Palaeocurrent direction Orientation of wave ripple crest Facies associations Upper shoreface with Hope, a Lower–Middle Callovian sandy succession, c. 190 m thick, overlying the Lower Triassic Wordie Creek Formation is referred to the Pelion Formation (Fig. 5). The succession is divided into two units. The lower unit is 30–40 m thick and consists of medium- to coarse-grained sandstones topped by silty, fine-grained sandstones. The upper unit is up to 155 m thick and differs from the clean sandstones that typify the for- Lower–middle shoreface Offshore – lower shoreface Offshore Trace fossils Bioturbation weak Bioturbation moderate Bioturbation strong Diplocraterion Monocraterion Ophiomorpha Planolites Curvolithos Helminthopsis? Chondrites GEUS Bulletin no 5.pmd 57 29-10-2004, 11:14 Fig. 5. Composite sedimentary section of the Middle–Upper Jurassic succession at Gulelv (Locality 3). The section was compiled from five part-sections located in a north–south direction along Gulelv (Figs 2, 6). Modified from Larsen et al. (1998). mation by containing abundant sandy heteroliths interbedded with cross-bedded sandstones and is included in the Spath Plateau Member (Fig. 5). The lower sandstone unit and the Spath Plateau Member are described and interpreted separately below; the latter member is defined formally as a new member of the Pelion Formation. 57
- Page 5 and 6: Contents Preface . . . . . . . . .
- Page 7 and 8: (Alsen & Surlyk 2004, this volume).
- Page 9 and 10: Jurassic syn-rift sedimentation on
- Page 11 and 12: NW SE m 1000 500 0 NW SE m 1000 500
- Page 13 and 14: GEUS Bulletin no 5.pmd 13 29-10-200
- Page 15 and 16: grained than the lower parasequence
- Page 17 and 18: the Pelion Formation. The mudstone-
- Page 19 and 20: The fluviatile Bristol Elv Formatio
- Page 21 and 22: Name. After the river Bristol Elv i
- Page 23 and 24: edded, and display both sheet-like
- Page 25 and 26: N S Fig. 5. Coarse-grained sandston
- Page 27 and 28: Fig. 7. Lacustrine deposits from th
- Page 29 and 30: deposition of peat and coal. Journa
- Page 31 and 32: Maximum Middle Jurassic transgressi
- Page 33 and 34: 834 N Lycett Bjerg Barrikade Gletsc
- Page 35 and 36: SW NE Lycett Bjerg Parnas Member Be
- Page 37 and 38: Cadoceras cf. nordenskjoeldi Callom
- Page 39 and 40: GEUS Bulletin no 5.pmd 39 29-10-200
- Page 41 and 42: 4 C B 1 2 GEUS Bulletin no 5.pmd 41
- Page 43 and 44: Fig. 1. Sketch-map of the Jameson L
- Page 45 and 46: Table 1. Measurement of dimensions
- Page 47 and 48: GEUS Bulletin no 5.pmd 47 29-10-200
- Page 49 and 50: 1 2 GEUS Bulletin no 5.pmd 49 29-10
- Page 51 and 52: A new Middle-Upper Jurassic success
- Page 53 and 54: 74º00'N ■■ ■■ ■■ 73º5
- Page 55: System Ma 159.4 154.1 164.4 169.2 1
- Page 59 and 60: wards units is biogenic carbonate d
- Page 61 and 62: Fig. 7. Log panel giving a broadly
- Page 63 and 64: SPM LU to medium-grained and consis
- Page 65 and 66: and mudstone drapes reflects varyin
- Page 67 and 68: with the presence of a minor angula
- Page 69 and 70: the north-east and south-west, resp
- Page 71 and 72: elly mass-flow deposits. In: Koster
- Page 73 and 74: Jurassic dinoflagellate cyst strati
- Page 75 and 76: 74°00'N ■■ ■■ ■■ 73°5
- Page 77 and 78: Bernbjerg Formation Payer Dal Forma
- Page 79 and 80: Depositional environment. The prese
- Page 81 and 82: GEUS Bulletin no 5.pmd 81 29-10-200
- Page 83 and 84: GEUS Bulletin no 5.pmd 83 29-10-200
- Page 85 and 86: Metres 30 20 10 Hold with Hope, Loc
- Page 87 and 88: Correlations The Pelion Formation o
- Page 89 and 90: Jurassic dinoflagellate cysts from
- Page 91 and 92: Fig. 2. Sedimentological log of the
- Page 93 and 94: LITHOSTRATIGRAPHY BIOSTRATIGRAPHY F
- Page 95 and 96: ALPHABETICAL SPECIES LIST 41 Adnato
- Page 97 and 98: References Alsgaard, P.C., Felt, V.
- Page 99 and 100: Jurassic dinoflagellate cyst strati
- Page 101 and 102: parties from the Geological Survey
- Page 103 and 104: may indicate a hiatus in the sedime
- Page 105 and 106: Metre 50 25 0 Store Koldewey Ravn P
Sedimentary structures<br />
Biota<br />
Structureless<br />
Trough cross-bedding<br />
Planar and trough cross-bedding<br />
Structureless<br />
Planar and trough cross-bedding<br />
Faint ripple form sets<br />
Cross-lamination<br />
Wave ripple cross-lamination<br />
Faint ripple form sets<br />
Wave ripple cross-lamination<br />
Hummocky cross-stratification<br />
Parallel lamination<br />
Pebbles<br />
Mudstone drapes and clasts<br />
Plant fragments<br />
Log<br />
Bivalve<br />
Ammonite<br />
Belemnite<br />
Miscellaneous features<br />
Palaeocurrent direction<br />
Orientation of wave ripple crest<br />
Facies associations<br />
Upper shoreface<br />
with Hope, a Lower–Middle Callovian sandy succession,<br />
c. 190 m thick, overlying the Lower Triassic Wordie<br />
Creek Formation is referred to the Pelion Formation<br />
(Fig. 5). The succession is divided into two units. The<br />
lower unit is 30–40 m thick and consists of medium- to<br />
coarse-grained sandstones topped by silty, fine-grained<br />
sandstones. The upper unit is up to 155 m thick and<br />
differs from the clean sandstones that typify the for-<br />
Lower–middle shoreface<br />
Offshore – lower shoreface<br />
Offshore<br />
Trace fossils<br />
Bioturbation weak<br />
Bioturbation moderate<br />
Bioturbation strong<br />
Diplocraterion<br />
Mo<strong>no</strong>craterion<br />
Ophiomorpha<br />
Pla<strong>no</strong>lites<br />
Curvolithos<br />
Helminthopsis?<br />
Chondrites<br />
<strong>GEUS</strong> <strong>Bulletin</strong> <strong>no</strong> <strong>5.pmd</strong> 57<br />
29-10-2004, 11:14<br />
Fig. 5. Composite sedimentary section<br />
of the Middle–Upper Jurassic succession<br />
at Gulelv (Locality 3). The section<br />
was compiled from five part-sections<br />
located in a <strong>no</strong>rth–south direction<br />
along Gulelv (Figs 2, 6). Modified from<br />
Larsen et al. (1998).<br />
mation by containing abundant sandy heteroliths interbedded<br />
with cross-bedded sandstones and is included<br />
in the Spath Plateau Member (Fig. 5). The lower sandstone<br />
unit and the Spath Plateau Member are described<br />
and interpreted separately below; the latter member is<br />
defined formally as a new member of the Pelion Formation.<br />
57
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