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(Table 1) Average composition of smectites of sediment core CRP-3
The aim of this work is to evaluate the origin of smectites in sediments of CRP-3 core (Victoria Land Basin, Antarctica), through TEM observations and microanalyses on smectite... -
(Table 1) Detrital modes for sand grains in sediment core CRP-3
Detrital modes determined on 68 sandstone samples from CRP-3 drillcore indicate a continuation of the dynamic history of uplift-related erosion and unroofing previously... -
(Table 1) Range chart of calcareous nannofossils in samples of sediment core ...
Fossil specimens of the exclusively oceanic calcareous nannoplankton were found only in the upper 200 m of the Cape Roberts Project 3 (CRP-3) cores. These assemblages are... -
(Table 1) Description of grain size, cement, and matrix in sediment core CRP-...
The presence of authigenic smectite in the lower Oligocene sandstones of the Cape Roberts Project core CRP-3 from the Victoria Land Basin of Antarctica is confirmed by scanning... -
(Table 1) Core intervals of sediment core CRP-3 that have been stitched and r...
CRP-3 cores were not orientated with respect to North during coring operations. However, borehole televiewer (BHTV) logging did obtain azimuthally orientated images of the... -
Lithology description, textural and structural observations, and indications ...
From the upper 300 m of CRP-2/2A, twenty-six samples of diamicts and deformation structures have been thin sectioned. These have been analysed for texture, structure, diagenesis... -
Characterisation of breccias in sediment core CRP-1 (Table 1)
CoreScan images were examined to determine the origin of breccias in the CRP-1 core. Breccias occur throughout the core. but are dominant deformation features in the upper 85 m.... -
Micromorphological observations in the Miocene section of sediment core CRP-1...
Five samples of diamicts from different levels of the Miocene part of the CRP-1 core have been thin sectioned. Observations in the thin sections relate to texture, diagenesis,... -
Abundance of phytoliths in sediment core CRP-1 (Table 1)
This report documents phytoliths (siliceous plant fossils) in 16 samples from the Cape Roberts Project core (CRP-1), including the first record of two phytolith forms from... -
Modal analyses of thin-sections of sediment core CRP-1 (Table 1)
During the course of the 1997 drilling campaign, lithostratigraphic boundaries were assigned to the CRP-l core on the basis of perceived changes in lithology. The geologically... -
Miocene siliceous microfossil occurence of sediment core CRP-1 (Table 3)
Lower Miocene diatoms and other siliceous microfossils in the Cape Robcrts Project drillcore (CRP-l), Roberts Ridge, western McMurdo Sound, are documented. Diatom... -
Description of lithofacies associations and their interpreted settings from s...
Cape Roberts Project drillcore 1 was obtained from Roberts Ridge, a sea-floor high located at 77°S, 16 km offshore from Cape Roberts in western McMurdo Sound, Antarctica. The... -
Sample information and classification of lower Miocene gravity-flow types of ...
Nineteen samples of the Cape Roberts-1 drillcore were taken from Miocene- age deposits, from 90.25 – 146.50 metres below seafloor (mbsf) for thin section and laser grain-size... -
Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (T...
Sparse to moderately abundant foraminiferal assemblages from Oligocene and Lower Miocene sediments in the CRP-2/2A drillhole contain C.27 genera and 42 species of calcareous... -
Summary of 40Ar/39Ar results from sediment core CRP-2A (Table 1)
40Ar/39Ar analyses of tephra and clasts of volcanic rock provide age constraints for upper parts of the CRP-2A core. Single-crystal laser-fusion analyses of anorthoclase... -
(Table 1) Detrital modes for sand grains in sediment core CRP-2/2A
Dynamic provenance variations are deduced from sand-grain detrital modes in samples obtained from the CRP-2/2A drillcore. Below an important unconformity at 307 metres below sea... -
Chronostratigraphy of sediment core CRP-2/2A (Table 1)
The 624.15 m glaciomarine sedimentary succession recovered in the CRP-2/2A drillcore comprises lower Oligocene (1000 m/m.y.). Between 306.65 mbsf and the bottom of the drillcore... -
(Table 1) Strontium isotope data for marine carbonates of sediment core CRP-3
Strontium isotope stratigraphy was used to date 5 discrete horizons within the CRP-3 drillhole. A single in situ modiolid bivalve fragment at 10.88 mbsf gives an age of 30.9... -
(Appendix 1) Carbonate content in relation to sediment type described for sed...
Determinations of total carbonate contents in the CRP-3 core yield additional information and knowledge, in the context of integrated investigations, thus enabling or enhancing... -
Range chart of calcareous nannofossils in sediment core CRP-2A (Table 1)
Rare calcareous nannofossils from the Cape Roberts Project drillhole CRP-2A indicate that this area was episodically invaded by marginal oceanic surface waters during the late...
