/* DATA DESCRIPTION: Citation: Buggisch, Werner; Kleinschmidt, Georg; Höhndorf, Axel; Pohl, Jean (1994): Tab. 1: Rb-Sr data on metasediments in the Shackleton Range. PANGAEA, https://doi.org/10.1594/PANGAEA.763436, Supplement to: Buggisch, W et al. (1994): Stratigraphy and facies of sediments and low-grade metasediments in the Shackleton Range, Antarctica. Polarforschung, 63(1), 9-32, hdl:10013/epic.29713.d001 Abstract: Summary: The stratigraphy of the Shackleton Range established by Stephenson (1966) and Clarkson (1972) was revised by results of the German Expedition GEISHA 1987/88. The "Turnpike Bluff Group" does not form a stratigraphic unit. The stratigraphic correlation of its formations is still a matter of discussion. The following four formations are presumed to belong to different units: The Stephenson Bastion Formation and Wyeth Heights Formation are probably of Late Precambrian age. The Late Precambrian Watts Needle Formation, which lies unconformably on the Read Group, is an independant unit which has to be separated from the "Turnpike Bluff Group". The Mount Wegener Formation has been thrusted over the Watts Needle Formation. Early Cambrian fossils (Oldhamia sp., Epiphyton sp., Botomaella (?) sp. and echinoderms) were found in the Mt. Wegener Formation in the Read Mountains. The Middle Cambrian trilobite shales on Mount Provender, which form the Haskard Highlands Formation, are possibly in faulted contact with the basement complex (Pioneers and Stratton Groups). They are overlain by the Blaiklock Glacier Group, for which an Ordovician age is indicated by trilobite tracks and trails, low inclination of the paleomagnetic field and the similarity to the basal units of the Table Mountain Quartzite in South Africa. The Watts Needle Formation represents epicontinental shelf sediments, the Mount Wegener Formation was deposited in a (continental) back-arc environment, and the Blaiklock Glacier Group is a typical molasse sediment of the Ross Orogen. Coverage: MEDIAN LATITUDE: -80.755547 * MEDIAN LONGITUDE: -25.596679 * SOUTH-BOUND LATITUDE: -80.800000 * WEST-BOUND LONGITUDE: -29.550000 * NORTH-BOUND LATITUDE: -80.733000 * EAST-BOUND LONGITUDE: -23.506000 MINIMUM ELEVATION: 0.0 m * MAXIMUM ELEVATION: 0.0 m Event(s): Shackleton_Range * LATITUDE: -80.500000 * LONGITUDE: -22.000000 * ELEVATION START: 0.0 m * ELEVATION END: 0.0 m * LOCATION: Shackleton Range, Antarctica * METHOD/DEVICE: Geological sample (GEOS) Comment: NBS 987 = 0.71023 ± 0.00007, analytical error at the 95% confidence level is ± 2% for 87Rb/86Sr and ± 0.06% for 87Sr/86Sr. Quoted errors are at the level of 95% confidence. Decay constants as in Steiger & Jäger (1977). *normalized to 86Sr/88Sr=0.1194; samples 88-155, 88-108 omitted for regression calculation. Parameter(s): Area/locality (Area) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Comment (Comment) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) LATITUDE (Latitude) * GEOCODE LONGITUDE (Longitude) * GEOCODE Sample code/label (Sample label) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Size fraction (Size fraction) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Rubidium [mg/kg] (Rb) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Strontium [mg/kg] (Sr) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Rubidium-87/Strontium-86 ratio (87Rb/86Sr) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Strontium-87/Strontium-86 ratio (87Sr/86Sr) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Age, dated [ka] (Age dated) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Age, dated standard deviation [±] (Age dated std dev) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) Age, comment (Comm) * PI: Buggisch, Werner (buggisch@geol.uni-erlangen.de) License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 374 data points */ Area Comment Latitude Longitude Sample label Size fraction Rb [mg/kg] Sr [mg/kg] 87Rb/86Sr 87Sr/86Sr Age dated [ka] Age dated std dev [±] Comm Stephenson Bastion - Clayton Ramparts -80.767 -27.200 222 158.0 27.6 17.03 0.99738 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 223 125.0 30.0 12.28 0.94843 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 224 37.9 16.4 6.76 0.84129 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 225 36.9 13.0 8.32 0.85872 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 236 112.0 37.0 8.99 0.88238 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 238 94.1 38.3 7.24 0.86553 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 234 0.6-2 205.0 70.3 8.42 0.86875 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 235 0.6-2 292.0 55.1 15.51 0.98198 Stephenson Bastion - Clayton Ramparts -80.767 -27.200 2-6 287.0 52.9 15.88 0.99891 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 226 83.0 13.8 18.01 1.04589 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 227 82.4 13.2 18.73 1.06436 1251000 24000 0.7224 ± 32 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 229 107.0 30.4 10.41 0.90925 MSWD = 2.1 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 233 124.0 29.5 12.47 0.94230 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 243 120.0 38.5 9.18 0.88467 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 245 71.0 39.5 5.26 0.81743 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 226 0.6-2 181.0 11.6 48.25 1.53200 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 2-6 113.0 13.4 24.90 1.15249 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 242 0.6-2 223.0 85.6 7.50 0.85108 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 2-6 218.0 83.5 7.55 0.85445 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 244 0.6-2 193.0 22.6 25.45 1.17201 Stephenson Bastion - Ram Bow Bluff -80.800 -26.700 2-6 96.9 20.2 14.00 0.98231 Wyeth Heights Formation -80.750 -29.550 88-168 218.0 28.1 23.43 1.12729 1150000 0.728 Wyeth Heights Formation -80.750 -29.550 88-169 228.0 29.3 23.38 1.09935 Wyeth Heights Formation -80.750 -29.550 88-172 174.0 35.1 14.70 0.97002 Wyeth Heights Formation -80.750 -29.550 88-173 186.0 41.0 13.37 0.90173 1013000 0.708 Wyeth Heights Formation -80.750 -29.550 88-178 127.0 14.0 27.26 1.10295 Watts Needle Formation sandstone member -80.733 -24.983 88-1 175.0 133.0 3.84 0.78547 Watts Needle Formation sandstone member -80.733 -24.983 88-32 173.0 76.0 6.66 0.78898 680000 57000 0.726 ± 8 Watts Needle Formation sandstone member -80.733 -24.983 88-33 194.0 12.2 48.12 1.18408 MSWD = 16 Watts Needle Formation sandstone member -80.733 -24.983 88-50 113.0 30.8 10.70 0.82791 Watts Needle Formation sandstone member -80.733 -24.983 88-51 253.0 52.0 14.29 0.86685 Watts Needle Formation sandstone member -80.733 -24.983 88-57 93.0 27.2 10.02 0.82919 Watts Needle Formation (Mount Wegener) shale member -80.733 -23.506 88-76 173.0 34.7 14.61 0.82786 Watts Needle Formation (Mount Wegener) shale member -80.733 -23.506 88-86 218.0 60.7 10.51 0.79745 584000 41000 0.708 ± 6 Watts Needle Formation (Mount Wegener) shale member -80.733 -23.506 88-87 220.0 46.6 13.80 0.82322 MSWD = 5.4 Watts Needle Formation (Mount Wegener) shale member -80.733 -23.506 88-88 216.0 99.1 6.34 0.76056 Watts Needle Formation (Mount Wegener) shale member -80.733 -23.506 88-146 208.0 58.2 10.44 0.79812 Watts Needle Formation (Mount Wegener) shale member -80.733 -23.506 88-147 217.0 58.6 10.80 0.79617 Mount Wegener Formation low-grade -80.733 -23.516 88-132 216.0 46.1 13.73 0.82022 Mount Wegener Formation low-grade -80.733 -23.516 88-133 212.0 160.0 3.85 0.74736 535000 9000 0.7139 ± 5 Mount Wegener Formation low-grade -80.733 -23.516 88-136 205.0 69.5 8.61 0.78008 MSWD = 1.8 Mount Wegener Formation low-grade -80.733 -23.516 88-143 217.0 65.8 9.64 0.78604 Mount Wegener Formation low-grade -80.733 -23.516 88-145 156.0 431.0 1.05 0.72188 Mount Wegener Formation low-grade -80.733 -23.516 88-152 200.0 71.0 8.20 0.77687 Mount Wegener Formation low-grade -80.733 -23.516 88-155 195.0 20.3 28.16 0.78909 Mount Wegener Formation low-grade -80.733 -23.516 88-156 229.0 56.7 11.79 0.80247 Mount Wegener Formation very low-grade -80.733 -23.516 88-108 211.0 46.4 13.28 0.81018 Mount Wegener Formation very low-grade -80.733 -23.516 88-109 177.0 113.0 4.56 0.74844 561000 18000 0.7113 ± 17 Mount Wegener Formation very low-grade -80.733 -23.516 88-111 160.0 72.0 6.48 0.76335 MSWD = 2.2 Mount Wegener Formation very low-grade -80.733 -23.516 88-117 193.0 59.6 9.47 0.78705 Mount Wegener Formation very low-grade -80.733 -23.516 88-118 156.0 116.0 3.92 0.74223 Mount Wegener Formation very low-grade -80.733 -23.516 88-120 207.0 48.6 12.44 0.81210 Mount Wegener Formation very low-grade -80.733 -23.516 88-125 188.0 50.5 10.87 0.79660