/* DATA DESCRIPTION: Citation: Spaeth, Gerhard; Schüll, P (1987): Tab. 2: Average geochemical composition of dolerites from Neuschwabenland. PANGAEA, https://doi.org/10.1594/PANGAEA.761606, Supplement to: Spaeth, G; Schüll, P (1987): A survey of mesozoic dolerite dikes from western Neuschwabenland, Antarctica, and their geotectonic significance. Polarforschung, 57(1/2), 93-113, hdl:10013/epic.29585.d001 Abstract: In western Neuschwabenland basic dikes occur in the Jurassic lavas and Permian sediments of Vestfjella as weil as in the Precambrian sedimentary-volcanogenic rock sequence of the Ahlmannryggen and in the Precambrian crystalline complexes of Heimefrontfjella and Mannefallknausane. The concentration of the dikes in Vestfjella is conspicuous. Two main directions of strike perpendicular to each other are recognizable, from which the NE-SW striking one is predominant. The direction of the dikes coincides with the Mesozoic and younger fracture tectonics. Age relationships by structural, petrographical and geochemical observations are confirmed by palaeomagnetic and radiometrie age determinations from PETERS et al. (1986). Considerations on the geochemistry of further dolerite occurrences from Antarctica and other regions of the Gondwana continent are pointed out. Finally comparisons with the analogous South African dike system show the geotectonic significance of the dolerite dikes for the break-up of Gondwana. Coverage: MEDIAN LATITUDE: -73.233333 * MEDIAN LONGITUDE: -9.000000 * SOUTH-BOUND LATITUDE: -75.000000 * WEST-BOUND LONGITUDE: -15.000000 * NORTH-BOUND LATITUDE: -71.700000 * EAST-BOUND LONGITUDE: -1.000000 Event(s): Ahlmannryggen * LATITUDE START: -72.000000 * LONGITUDE START: -3.000000 * LATITUDE END: -71.700000 * LONGITUDE END: -1.000000 * LOCATION: Ahlmannryggen, Neuschwabenland, Antarctica Heimefrontfjella * LATITUDE START: -74.200000 * LONGITUDE START: -13.000000 * LATITUDE END: -75.000000 * LONGITUDE END: -9.000000 * LOCATION: Heimefrontfjella, Antarctica Vestfjella * LATITUDE START: -73.000000 * LONGITUDE START: -15.000000 * LATITUDE END: -73.500000 * LONGITUDE END: -13.000000 * LOCATION: Vestfjella, Kraul Mountains, Neuschwabenland, Antarctica Parameter(s): Event label (Event) - (-) * PI: Spaeth, Gerhard Loss on ignition [%] (LOI) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Silicon dioxide [%] (SiO2) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Aluminium oxide [%] (Al2O3) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Calcium oxide [%] (CaO) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Magnesium oxide [%] (MgO) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Sodium oxide [%] (Na2O) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Potassium oxide [%] (K2O) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Titanium dioxide [%] (TiO2) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Iron oxide, Fe2O3 [%] (Fe2O3) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) * COMMENT: as whole iron Manganese oxide [%] (MnO) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Phosphorus pentoxide [%] (P2O5) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Barium [mg/kg] (Ba) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Strontium [mg/kg] (Sr) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Rubidium [mg/kg] (Rb) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Zirconium [mg/kg] (Zr) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Yttrium [mg/kg] (Y) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Vanadium [mg/kg] (V) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Chromium [mg/kg] (Cr) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Zinc [mg/kg] (Zn) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Nickel [mg/kg] (Ni) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Cobalt [mg/kg] (Co) * PI: Spaeth, Gerhard * METHOD/DEVICE: X-ray fluorescence (XRF) Potassium/Rubidium ratio (K/Rb) * PI: Spaeth, Gerhard * METHOD/DEVICE: Calculated Potassium/Barium ratio (K/Ba) * PI: Spaeth, Gerhard License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 216 data points */ Event - LOI [%] SiO2 [%] Al2O3 [%] CaO [%] MgO [%] Na2O [%] K2O [%] TiO2 [%] Fe2O3 [%] MnO [%] P2O5 [%] Ba [mg/kg] Sr [mg/kg] Rb [mg/kg] Zr [mg/kg] Y [mg/kg] V [mg/kg] Cr [mg/kg] Zn [mg/kg] Ni [mg/kg] Co [mg/kg] K/Rb K/Ba Vestfjella mean (22 samples) 1.68 48.76 13.37 10.43 6.96 2.38 0.53 1.78 13.61 0.18 0.19 397 269 20 137 25 289 275 73 149 46 241.70 10.79 Vestfjella from 0.48 46.78 10.12 7.49 4.52 1.32 0.14 1.24 11.97 0.14 0.10 124 131 21 85 20 221 42 53 46 37 114.48 6.02 Vestfjella to 3.67 52.99 15.37 13.44 11.23 3.16 1.06 4.00 19.71 0.20 0.51 1101 378 34 304 57 389 974 147 407 62 338.38 18.22 Ahlmannryggen mean (27 samples) 2.27 47.86 10.59 9.40 10.24 2.00 0.52 2.72 14.84 0.19 0.29 273 303 30 181 29 396 666 127 481 72 226.11 23.90 Ahlmannryggen from 0.77 43.11 6.87 5.25 5.05 1.09 0.12 1.39 13.25 0.17 0.10 101 36 21 89 20 301 94 111 57 51 131.42 10.56 Ahlmannryggen to 5.45 52.20 14.43 13.18 19.15 3.49 0.97 5.51 16.81 0.22 0.73 641 757 47 503 53 507 1514 184 1363 109 489.49 76.98 Heimefrontfjella mean (18 samples) 0.75 48.37 13.12 9.62 7.06 2.08 0.72 2.45 15.31 0.21 0.28 236 278 39 169 12 389 296 127 179 55 201.64 30.42 Heimefrontfjella from 0.05 44.25 8.69 6.56 3.53 1.12 0.13 0.92 9.66 0.13 0.07 122 187 20 55 7 188 61 93 38 40 121.76 22.06 Heimefrontfjella to 2.52 58.49 15.86 12.56 22.54 3.09 1.92 4.53 20.13 0.25 0.54 516 518 78 283 25 594 1462 184 1238 97 288.20 41.73