/* DATA DESCRIPTION: Citation: Langrock, Uwe; Stein, Ruediger; Lipinski, Marcus; Brumsack, Hans-Jürgen (2003): (Table 1) Organic and inorganic geochemical analysis of Late Jurassic to Early Cretaceous black shale sediments from the Norwegian-Greenland Seaway. PANGAEA, https://doi.org/10.1594/PANGAEA.841464, Supplement to: Langrock, U et al. (2003): Late Jurassic to Early Cretaceous black shale formation and paleoenvironment in high northern latitudes: Examples from the Norwegian-Greenland Seaway. Paleoceanography, 18(3), 1074, https://doi.org/10.1029/2002PA000867 Abstract: The Late Jurassic to Early Cretaceous (Volgian-Ryazanian) was a period of a second-order sea-level low stand, and it provided excellent conditions for the formation of shallow marine black shales in the Norwegian-Greenland Seaway (NGS). IKU Petroleum Research drilling cores taken offshore along the Norwegian shelf were investigated with geochemical and microscopic approaches to (1) determine the composition of the organic matter, (2) characterize the depositional environments, and (3) discuss the mechanisms which may have controlled production, accumulation, and preservation of the organic matter. The black shale sequences show a wide range of organic carbon contents (0.5-7.0 wt %) and consist of thermally immature organic matter of type II to II/III kerogen. Rock-Eval pyrolysis revealed fair to very good petroleum source rock potential, suggesting a deposition in restricted shallow marine basins. Well-developed lamination and the formation of autochthonous pyrite framboids further indicate suboxic to anoxic bottom water conditions. In combination with very low sedimentation rates it seems likely that preservation was the principal control on organic matter accumulation. However, a decrease of organic carbon preservation and an increase of refractory organic matter from the Volgian to the Hauterivian are superimposed on short-term variations (probably reflecting Milankovitch cycles). Various parameters indicate that black shale formation in the NGS was gradually terminated by increased oxidative conditions in the course of a sea-level rise. Project(s): Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo) (URI: https://www.awi.de/en/science/geosciences/marine-geology.html) Coverage: MEDIAN LATITUDE: 63.313233 * MEDIAN LONGITUDE: 9.870867 * SOUTH-BOUND LATITUDE: 57.811900 * WEST-BOUND LONGITUDE: 7.245600 * NORTH-BOUND LATITUDE: 68.662700 * EAST-BOUND LONGITUDE: 14.163100 MINIMUM DEPTH, sediment/rock: 23.0 m * MAXIMUM DEPTH, sediment/rock: 180.0 m Event(s): IKU-13/1-U-02 * LATITUDE: 57.811900 * LONGITUDE: 8.203900 * ELEVATION: -505.0 m * METHOD/DEVICE: Drilling/drill rig (DRILL) IKU-6307/07-U-02 * LATITUDE: 63.465100 * LONGITUDE: 7.245600 * ELEVATION: -290.0 m * METHOD/DEVICE: Drilling/drill rig (DRILL) IKU-6814/04-U-02 * LATITUDE: 68.662700 * LONGITUDE: 14.163100 * ELEVATION: -233.0 m * METHOD/DEVICE: Drilling/drill rig (DRILL) Parameter(s): Event label (Event) Latitude of event (Latitude) Longitude of event (Longitude) Elevation of event [m] (Elevation) DEPTH, sediment/rock [m] (Depth sed) * GEOCODE Depth, top/min [m] (Depth top) * PI: Langrock, Uwe Depth, bottom/max [m] (Depth bot) * PI: Langrock, Uwe Stage (Stage) * PI: Langrock, Uwe Carbon, total [%] (TC) * PI: Langrock, Uwe * METHOD/DEVICE: Element analyser CHN, LECO (URI: http://www.leco.com/) Nitrogen, total [%] (TN) * PI: Langrock, Uwe * METHOD/DEVICE: Element analyser CHN, LECO (URI: http://www.leco.com/) Sulfur, total [%] (TS) * PI: Langrock, Uwe * METHOD/DEVICE: Element analyser CHN, LECO (URI: http://www.leco.com/) Calcium carbonate [%] (CaCO3) * PI: Langrock, Uwe * METHOD/DEVICE: Coulomat carbon analyzer Iron oxide, Fe2O3 [%] (Fe2O3) * PI: Langrock, Uwe * METHOD/DEVICE: X-ray fluorescence (XRF) Carbon, organic, total [%] (TOC) * PI: Langrock, Uwe * METHOD/DEVICE: Coulomat carbon analyzer Hydrogen index, mass HC, per unit mass total organic carbon [mg/g] (HI, HC/TOC) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Oxygen index, mass CO2, per unit mass total organic carbon [mg/g] (OI, CO2/TOC) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Pyrolysis temperature maximum [°C] (Tmax) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Hydrocarbon yield, S1 per unit sediment mass [mg/g] (S1 HC/sed) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Hydrocarbon yield, S2 per unit sediment mass [mg/g] (S2 HC/sed) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Carbon dioxide yield, S3 per unit sediment mass [mg/g] (S3 CO2/sed) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Hydrocarbon yield, S2/Carbon dioxide yield, S3 (S2/S3) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Production index, S1/(S1+S2) (PI) * PI: Langrock, Uwe * METHOD/DEVICE: Rock eval pyrolysis (Espitalié et al. 1977) (URI: https://doi.org/10.2516/ogst:1977002) Comment (Comment) * PI: Langrock, Uwe * COMMENT: source rock potential License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 267 data points */ Event Latitude Longitude Elevation [m] Depth sed [m] Depth top [m] Depth bot [m] Stage TC [%] TN [%] TS [%] CaCO3 [%] Fe2O3 [%] TOC [%] HI, HC/TOC [mg/g] OI, CO2/TOC [mg/g] Tmax [°C] S1 HC/sed [mg/g] S2 HC/sed [mg/g] S3 CO2/sed [mg/g] S2/S3 PI Comment IKU-6814/04-U-02 68.663 14.163 -233 23.0 7 39 Barremian 3.4 0.15 1.0 8.0 9.0 2.4 58 48 436 0.1 1.5 1.2 2.1 0.07 poor/fair IKU-6814/04-U-02 68.663 14.163 -233 41.5 39 44 late Hauterivian 1.7 0.04 3.6 13.9 6.0 0.1 77 292 494 0.0 0.1 0.2 0.1 0.08 none IKU-6814/04-U-02 68.663 14.163 -233 57.0 44 70 Valanginian 1.9 0.06 2.9 10.8 6.6 0.6 112 98 460 0.1 0.6 0.4 1.9 0.11 none IKU-6814/04-U-02 68.663 14.163 -233 79.5 70 89 Ryazanian 2.1 0.12 2.3 4.1 5.0 1.6 100 90 423 0.1 1.9 1.2 1.7 0.05 fair IKU-6814/04-U-02 68.663 14.163 -233 112.5 89 136 late Volgian 4.3 0.19 3.9 11.6 7.6 2.9 187 35 430 0.3 5.9 0.9 8.7 0.04 fair/good IKU-6814/04-U-02 68.663 14.163 -233 151.5 136 167 middle Volgian 4.8 0.22 3.9 10.8 7.5 3.5 219 25 429 0.4 7.6 0.9 19.0 0.04 good/very good IKU-6814/04-U-02 68.663 14.163 -233 179.0 167 191 early Volgian 3.7 0.20 3.5 8.4 5.4 2.7 247 22 425 0.3 6.5 0.6 16.4 0.05 good/very good IKU-6307/07-U-02 63.465 7.246 -290 23.5 13 34 Valanginian 3.2 0.04 1.8 15.7 7.8 0.4 56 152 410 0.2 0.8 0.9 0.7 0.17 poor IKU-6307/07-U-02 63.465 7.246 -290 42.0 34 50 Ryazanian 4.7 0.15 4.3 2.8 6.4 2.7 275 66 413 0.3 8.8 1.5 4.9 0.05 good IKU-6307/07-U-02 63.465 7.246 -290 56.0 50 62 late Volgian 6.3 0.21 3.3 0.8 4.0 4.3 348 49 409 0.7 14.6 2.0 7.3 0.05 very good IKU-6307/07-U-02 63.465 7.246 -290 68.0 62 74 middle Volgian 6.3 0.19 4.5 1.9 5.4 3.9 371 62 406 0.6 14.2 2.4 6.1 0.04 very good IKU-6307/07-U-02 63.465 7.246 -290 89.5 74 105 early Volgian 6.8 0.18 5.4 2.8 6.1 4.2 373 99 407 0.8 16.0 1.9 8.5 0.05 very good IKU-13/1-U-02 57.812 8.204 -505 131.5 118 145 late Volgian 1.4 0.05 1.0 4.5 5.4 0.8 44 79 421 0.1 0.4 0.6 1.5 0.20 poor IKU-13/1-U-02 57.812 8.204 -505 148.5 145 152 middle Volgian 0.8 0.04 0.5 3.6 8.7 0.3 6 367 0.0 0.0 0.0 0.0 0.56 poor IKU-13/1-U-02 57.812 8.204 -505 180.0 152 208 early Volgian 1.8 0.05 1.0 9.4 6.5 0.7 10 68 381 0.1 0.1 0.4 0.0