Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 195
Conditions included a calibrated 15 keV probe , 38 ° take - off angle and a 20 per
cent amplifier dead time . The electron optic parameters gave a probe current of 1
,2 x 10-9 amps . All the analyses were carried out using the same electron ...
Conditions included a calibrated 15 keV probe , 38 ° take - off angle and a 20 per
cent amplifier dead time . The electron optic parameters gave a probe current of 1
,2 x 10-9 amps . All the analyses were carried out using the same electron ...
Page 196
The volume analysed depends on sample density , but is in the order of 0,08 mm
} for a sample of density 8 g / mm and using a 15 keV probe and a scanning
electron microscope magnification of 1 000 x on the visual screen . By measuring
the ...
The volume analysed depends on sample density , but is in the order of 0,08 mm
} for a sample of density 8 g / mm and using a 15 keV probe and a scanning
electron microscope magnification of 1 000 x on the visual screen . By measuring
the ...
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Common terms and phrases
40 WEIGHT abbreviated according Africa amounts wt analyses Annals appears authors Ba ELEMENT 70 Ba ELEMENT Fig black paint bone Book burnt calcium Cape Cape Town carried cave CENT 30 Coldstream shelter Coldstream Stone coloured considered dancing women deposits described differences discovery discussed Drury Drury's electron elements detected evidence excavation existence feet figures finding followed given Goodwin ground Head Henkel Histograms of amounts illustrated included indicated Khoisan known Letter light red material mentioned Mn Fe mural nature normalized to 100 notes obtained paint samples painted stones paints and pigments Péringuey 1911 pieces pigments placed possible prepared present preservation probe publication published red ochre red paint references regard rock paintings Rudner samples seems seen separates shell shoulder shown shows skeleton smallest South African Museum volume WEIGHT PER CENT Whitcher white clay white paint