Unknown
PANGAEA
In:
Supplement to: Bellanca, Adriana; Neri, Rodolfo; Sprovieri, Mario (2000): Bulk geochemistry of the sand fractions from CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 553-560, hdl:10013/epic.28252.d001
Publication Date:
2023-06-27
Description:
Bulk chemistry (major and trace elements) of sand-sized samples from the CRP-2/2A drillhole provides evidence for a multicomponent provenance with changes in the component proportions throughout the sedimentary succession. Geochemical data evaluated in terms of element association and distribution and by means of cluster analysis reveal a provenance dominated by the granitoid basement with a significant contribution of MVG debris above ~310 mbsf. Chemical fingerprints of both basic and evolved MVG materials are recognized at different depths. Below ~310 mbsf the influence of Beacon sandstones becomes more marked, but there is geochemical evidence for influxes of detritus derived from Jurassic Ferrar Dolerites and Kirkpatrick basalt lavas.
Keywords:
14.2 km at 096° true from Cape Roberts; Aluminium oxide; Barium; Calcium oxide; Calculated from weight loss after ignition at 450 °C; Cape Roberts Project; Cerium; Chemical index of alteration; Chemical index of weathering; Chromium; Core wireline system; CRP; CRP-2; CRP-2A; CWS; DEPTH, sediment/rock; Iron oxide, Fe2O3; Lanthanum; Loss on ignition; Magnesium oxide; Manganese oxide; Nickel; off Cape Roberts, Ross Sea, Antarctica; Phosphorus pentoxide; Potassium oxide; Rubidium; Sampling/drilling from ice; see comment; Silicon dioxide; Sodium oxide; Strontium; Titanium dioxide; Vanadium; X-ray fluorescence (XRF); Yttrium; Zirconium
Type:
Dataset
Format:
text/tab-separated-values, 2099 data points
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