GEUS Bulletin no 5.pmd

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jason Chronozone and Trichodinium scarburghense appears in the P. athleta Chronozone (Milner & Piasecki 1996; Piasecki 1996). Age. The age of the upper sandstone unit of the Spath Plateau Member, Pelion Formation, is therefore Early to Late Callovian, equivalent to the P. koenigi – P. athleta Chronozones (Fig. 4). Depositional environment. The organic matter is dominated by terrestrial palynomorphs and debris. The proportion of brown and black lath-shaped woody material increases upwards until it completely dominates the organic content in the upper Pelion Formation. The upwards increase and dominance of woody material suggests deposition in the lower shoreface environment in front of a prograding shoreline. Payer Dal Formation The Payer Dal Formation was analysed from two localities at Steensby Bjerg, along the Sortelv (Locality 2) ALPHABETICAL SPECIES LIST 98 Adnatosphaeridium spp. 19 Aldorfia aldorfensis 24 Algae indet. 54 Ambonosphaera calloviense 71 Apteodinium cf. nuciforme 87 Atopodinium cf. haromense 53 Atopodinium haromense 21 Atopodinium polygonale 9 Atopodinium spp. 89 Avellodinium spp. 23 Barbatacysta creberbarbata 64 Barbatacysta verrucosa 52 Chlamydophorella ectotabulata 3 Chytroeisphaeridia cerastes 5 Chytroeisphaeridia hyalina 95 Circulodinium distinctum 93 Cribroperidinium granuligerum 17 Ctenidodinium thulium 33 Cyclopsiella spp. 77 Dingodinium jurassicum 47 Durotrigia spp. 74 Endoscrinium cf. galeritum 65 Endoscrinium galeritum 94 Endoscrinium luridum 76 Epiplosphaera spp. 79 Escarisphaeridia erythrocoma 8 Escharispahaeria laevigata 84 Escharispahaeria spp. 6 Escharisphaeridia cf. pocockii 68 Escharisphaeridia pocockii 45 Escharisphaeridia rudis 43 Fromea tornalis 97 Glossodinium dimorphum 84 60 Gonyaulacysta eisenackii 15 Gonyaulacysta cf. helicoidea 25 Gonyaulacysta jurassica 56 Gonyaulacysta spp. 22 Kallosphaeridium hypornatum 32 Kallosphaeridium praussii 46 Kallosphaeridium spp. 67 Leptodinium subtile 1 Limbicysta bjaerkei 41 Lithodinia cf. spongiosa 44 Lithodinia jurassica 20 Lithodinia planoseptata 30 Lithodinia spongiosa 18 Lithodinia spp. 49 Lithodinia valensi 75 Meiourogonyaulax spp. 50 Mendicodinium "granulatum" 37 Mendicodinium groenlandicum 48 Nannoceratopsis plegas var. dictyornata 13 Nannoceratopsis pellucida 2 Paraevansia brachythelis 28 Paragonyaulacysta retiphragmata 12 Pareodinia "granulata" 85 Pareodinia borealis 38 Pareodinia ceratophora 31 Pareodinia halosa 51 Pareodinia pachyceras 16 Pareodinia prolongata 70 Pareodinia scopaeus 61 Pareodinia spp. 57 Pareodinia stegasta 92 Prolixosphaeridium granulosum 4 Rhynchodiniopsis cf. cladophora and Gulelv (Locality 1) rivers (Figs 2, 4, 6, 7). The formation is characterised by frequent Rigaudella aemula, Rhynchodiniopsis cladophora, Sirmiodinium grossii and Gonyaulacysta jurassica. New, stratigraphically characteristic species appear in the lower part of the formation at Sortelv: Wanaea digitata, Rigaudella aemula and Leptodinium subtile. Higher in the formation at both localities further stratigraphically significant species appear: Scriniodinium crystallinum, Endoscrinium galeritum, Chytroeisphaeridia chytroeides, Rhynchodiniopsis sp., Prolixosphaeridium granulosum and Dingodinium jurassicum. Correlation. The dinoflagellate assemblage represents a characteristic Lower to Middle Oxfordian assemblage with frequent Rigaudella aemula, Scrinidinium crystallinum and Endoscrinium galeritum, as known from the Jurassic succession elsewhere in East Greenland such as in Milne Land (Piasecki 1996). This Lower– Middle Oxfordian assemblage in Milne Land reaches close to the top of the Middle Oxfordian before gradual replacement by an Upper Oxfordian assemblage. Wanaea spp. occurs only to the top of the Lower 86 Rhynchodiniopsis sp. (cf. "machaera") 26 Rhynchodiniopsis cladophora 88 Rhynchodiniopsis spp. 63 Rhynchodiniopsis spp. 62 Rigaudella filamentosa 66 Scriniodinium crystallinium 72 Scriniodinium inritibilum 96 Scriniodinium irregulare 69 Scriniodinium spp. 10 Sentusidinium cf. pelionense 91 Sentusidinium myriatrichum 55 Sentusidinium pelionense 34 Sentusidinium sp. D (Fensome 1979) 80 Sentusidinium sp. E (Fensome 1979) 36 Sentusidinium spp. 83 Sirmiodiniopsis spp. 11 Sirmiodinium grossii 35 Surculosphaeridium spp. 90 Systematophora spp. 82 Tenua cf. hystrix 59 Trichodinium scarburghense 78 Tubotuberella cf. apatela 73 Tubotuberella cf. dangeardii 40 Tubotuberella dangeardii 58 Tubotuberella eisenackii 27 Tubotuberella spp. 81 Valensiella cf. dictydia 7 Valensiella dictydia 14 Valensiella ovula 42 Valensiella sp. (Fensome 1979) 29 Valensiella spp. 39 Veryhachium spp. Previous page: Fig. 6. Distribution chart of dinoflagellate cysts in the Jurassic succession at Locality 1, Steensby Bjerg, northern Hold with Hope. The first appearances of species are stratigraphically arranged. Alphabetical species list given above. GEUS Bulletin no 5.pmd 84 29-10-2004, 11:14
Metres 30 20 10 Hold with Hope, Locality 2, Sortelv Samples height 34.00 32.00 28.50 25.00 9.00 GGU sample no. 433859 433159 443158 433157 433858 Age Late Jurassic Stage Oxfordian Formation Payer Dal Formation 1 Scriniodinium cf. inritibilum 2 Chytroeisphaeridia cerastes 3 Wanaea spp. 4 Rigaudella filamentosa 5 Stephanelytron spp. 6 Atopodinium haromense 7 Gonyaulacysta jurassica 8 Sirmiodinium grossii 9 Rhynchodiniopsis cladophora 10 Trichodinium scarburghense 11 Endoscrinium galeritum 12 Leptodinium subtile 13 Rigaudella aemula 14 Atopodinium spp. 15 Pareodinia "granulata" 16 Surculosphaeridium spp. 17 Circulodinium distinctum 18 Tubotuberella apatela 19 Wanaea digitata 20 Pareodinia borealis 21 Escharisphaeridia laevigata 22 Valensiella dictydia 23 Scriniodinium crystallinium 24 Ambonosphaera calloviana 25 Pareodinia ceratophora 26 Chytroeisphaeridia chytroeoides 27 Prolixosphaeridium granulosum 28 Escharisphaeridia spp. ALPHABETICAL SPECIES LIST 24 Ambonosphaera calloviana 6 Atopodinium haromense 14 Atopodinium spp. 2 Chytroeisphaeridia cerastes 26 Chytroeisphaeridia chytroeoides 17 Circulodinium distinctum 11 Endoscrinium galeritum 21 Escharisphaeridia laevigata 28 Escharisphaeridia spp. 7 Gonyaulacysta jurassica 12 Leptodinium subtile 15 Pareodinia "granulata" 20 Pareodinia borealis 25 Pareodinia ceratophora 27 Prolixosphaeridium granulosum 9 Rhynchodiniopsis cladophora 13 Rigaudella aemula 4 Rigaudella filamentosa 1 Scriniodinium cf. inritibilum 23 Scriniodinium crystallinium 8 Sirmiodinium grossii 5 Stephanelytron spp. 16 Surculosphaeridium spp. 10 Trichodinium scarburghense 18 Tubotuberella apatela 22 Valensiella dictydia 19 Wanaea digitata 3 Wanaea spp. 20–50 specimens 5–19 specimens 2–4 specimens 1 specimen Fig. 7. Distribution chart of dinoflagellate cysts in the Jurassic succession at Locality 2, Sortelv, western Steensby Bjerg, Hold with Hope. The first appearance of species is stratigraphically arranged. 85 GEUS Bulletin no 5.pmd 85 29-10-2004, 11:14
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GEOLOGICAL SURVEY OF DENMARK AND GR
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GEUS Bulletin no 5.pmd 3 29-10-2004
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Contents Preface . . . . . . . . .
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(Alsen & Surlyk 2004, this volume).
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Jurassic syn-rift sedimentation on
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NW SE m 1000 500 0 NW SE m 1000 500
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GEUS Bulletin no 5.pmd 13 29-10-200
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grained than the lower parasequence
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the Pelion Formation. The mudstone-
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The fluviatile Bristol Elv Formatio
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Name. After the river Bristol Elv i
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edded, and display both sheet-like
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N S Fig. 5. Coarse-grained sandston
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Fig. 7. Lacustrine deposits from th
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deposition of peat and coal. Journa
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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
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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 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 and 56: System Ma 159.4 154.1 164.4 169.2 1
Page 57 and 58: Sedimentary structures Biota Struct
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 83: GEUS Bulletin no 5.pmd 83 29-10-200
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
Page 107 and 108: Fig. 6. Schematic stratigraphical c
Page 109 and 110: Chronozone) to the earliest Kimmeri
Page 111 and 112: The Upper Jurassic succession is co
Page 115 and 116: 185 Greenland from Archaean to Quat
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GEUS Bulletin no 5.pmd

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