(Table 1) Major and trace elements of sediment core CRP-3 ...

The CRP-3 core, drilled in western McMurdo Sound in October and November 1999, penetrated 823 m of lower Oligocene (to possibly upper Eocene) glacially influenced sediments. The palaeoclimatic record of CRP-3 is examined using major element analyses of bulk core samples of fine grained sediments (mu...

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Bibliographic Details
Main Authors: Krissek, Lawrence A, Kyle, Philip R
Format: Dataset
Language:English
Published: PANGAEA 2001
Subjects:
DEPTH, sediment/rock
Silicon dioxide
Titanium dioxide
Aluminium oxide
Iron oxide, Fe2O3
Manganese oxide
Magnesium oxide
Calcium oxide
Sodium oxide
Potassium oxide
Phosphorus pentoxide
Loss on ignition
Chemical index of alteration
Aluminium/Titanium ratio
Sulfur, total
Chloride
Vanadium
Chromium
Nickel
Copper
Zinc
Gallium
Arsenic
Rubidium
Strontium
Yttrium
Zirconium
Niobium
Molybdenum
Barium
Lead
Thorium
Uranium
Core wireline system
X-ray fluorescence XRF
Calculated
CRP-3
Sampling/drilling from ice
Cape Roberts Project CRP
Antarc*
Antarctica
antartic*
McMurdo Sound
Victoria Land
Online Access:https://dx.doi.org/10.1594/pangaea.484982
https://doi.pangaea.de/10.1594/PANGAEA.484982
Description
Summary:The CRP-3 core, drilled in western McMurdo Sound in October and November 1999, penetrated 823 m of lower Oligocene (to possibly upper Eocene) glacially influenced sediments. The palaeoclimatic record of CRP-3 is examined using major element analyses of bulk core samples of fine grained sediments (mudstones and siltstones) and the Chemical Index of Alteration (CIA) of Nesbitt & Young (1982, doi:10.1038/299715a0). The CIA is calculated from the molar abundances of Al, K, Ca, and Na oxides, and its magnitude increases as the effects of chemical weathering increase. However, changes in sediment provenance can also affect the CIA, so provenance changes have been evaluated by examining the Al2O3/TiO2 ratios and the Sr and Nb contents of the CRP-3 mudstones.Relatively low Nb contents (<20 ppm) and relatively high Al2O3/TiO2 ratios (generally >15) indicate that little or no McMurdo Volcanic Group detritus was incorporated in these sediments. Instead, these sediments appear to be mixtures of Beacon ... : Supplement to: Krissek, Lawrence A; Kyle, Philip R (2001): Geochemical indicators of weathering, Cenozoic palaeoclimates and provenance in fine-grained sediments from CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 561-568 ...

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