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Graphite Peak

East Antarctic, South Africa, and India strengthens the evidence for the break-up of Gondwana and the displacement of the continental fragments to then-present positions in the southern hemisphere of the Earth (Taylor and Taylor 1990). [Pg.344]

Graphite Peak in Fig. 11.9a is located near Mt. Clarke (3,211m) east of Lhasa Nunatak and east of the Supporters Range adjacent to the Mill Glacier. The sedimentary [Pg.344]


Mr. McCartney. From a study of electron micrographs, we estimate that a very large proportion of the apparent vitrain band in this meta-anthracite consists of graphite crystallites or platelets. The intensity and sharpness of graphite peaks in diffraction patterns supports this view. [Pg.273]

Figure 24 High-resolutionX-ray diffraction of (A) MWNTs. (Ref 153. Reproduced by permission of Wiley-VCH) and (B) SWNTs produced by (a) arc-discharge and (b) laser-ablation techniques. Asterisk marks are graphite peaks and removed for clarity. (Reprinted with permission from Ref. 20. 1997 Macmillan Magazines Ltd)... Figure 24 High-resolutionX-ray diffraction of (A) MWNTs. (Ref 153. Reproduced by permission of Wiley-VCH) and (B) SWNTs produced by (a) arc-discharge and (b) laser-ablation techniques. Asterisk marks are graphite peaks and removed for clarity. (Reprinted with permission from Ref. 20. 1997 Macmillan Magazines Ltd)...
Raman scattering is a sensitive probe for the structure of carbon materials.Raman spectra of pyrolyzed PAN-MCM show two distinct peaks, the Raman-allowed E2g graphitic peak at 1580 cm l (G), and the D band at - 1360 cm (associated with small domain sizes). Empirical correlations between peak intensity ratios (and band widths) and graphitic domain sizes were used to estimate the average domain size in the PAN-MCM samples, and it was foxmd... [Pg.316]

Of the three XPS parameters discussed, the width of the graphite peak was found to be the most suitable parameter for the graphitic order of the OMC surface [12]. The correlation between the width of the XPS peak and the position of the monolayer formation peak is presented in Fig. 18.10. This figure also includes a data point for a nonporous graphitized CB. The correlation between... [Pg.467]

Hammer et al. (1986) revisited Graphite Peak during the 1985-1986 field season and collected additional specimens of tetrapod bones. Although most of these bones belonged to Lystrosaurus murrayi, the new collection also included a mandible of the carnivorous cynodont reptile Phrinaxodon (Hammer 1990b). [Pg.345]

Retallack et al. (1998) briefly reviewed the literature concerning the causes of the Permo-Triassic extinction event as an introduction to their own study to determine whether boundary clays at Graphite Peak between the Buckley and Fremouw formations contain shocked quartz and anomalously high concentrations of iridium of meteoritic origin. Although they found shocked... [Pg.348]

In a related study, Basu et al. (2003) reported finding meteorite fragments and metalUc grains in rock samples from Graphite Peak. However, in the absence of an impact crater and other geomorphic evidence that is characteristic of impact events, the search for the causes of the Permo-Triassic extinction event continues. [Pg.348]

The Early Triassic Fremouw Eormation has yielded fossil bones of a wide variety of land-based amphibians and reptiles that inhabited the forests on the coastal plain of East Antarctica. The collecting sites in the Beardmore and Shackleton glacier areas of the central Transantarctic Mountains include Graphite Peak, Coalsack Bluff, the Cumulus Hills, and the Gordon Valley. The most famous Triassic reptile is Lystrosaurus which was a plump little animal about 90 cm long that seems to have been well adapted to digging burrows in the soil. [Pg.360]

Cullis and Yates [117] have shown that graphite reacts with N2 between 1400-2000°C noting that the reaction with one grade of graphite peaked at 1600°C whilst another grade the reaction actually increased with temperature probably due to differences in surface area. A suggested mechanism for the reaction of carbon with N2 is ... [Pg.224]

Interference Functions /(s) of Amorphous (as Deposited) Carbon Films Compared to Graphite Peak... [Pg.32]


See other pages where Graphite Peak is mentioned: [Pg.115]    [Pg.20]    [Pg.123]    [Pg.216]    [Pg.595]    [Pg.595]    [Pg.12]    [Pg.466]    [Pg.468]    [Pg.656]    [Pg.366]    [Pg.391]    [Pg.120]    [Pg.305]    [Pg.305]    [Pg.306]    [Pg.310]    [Pg.344]    [Pg.344]    [Pg.344]    [Pg.345]    [Pg.345]    [Pg.347]    [Pg.347]    [Pg.348]    [Pg.366]    [Pg.645]    [Pg.104]    [Pg.290]    [Pg.140]    [Pg.207]    [Pg.271]    [Pg.80]    [Pg.992]    [Pg.94]    [Pg.102]   


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