(Table 2) Average major-element composition of glass shards from Toba Tephra ...
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Positions are estimated from map. Analyses done on a Cameca SX-50 wavelength dispersive electron microprobe operating at 15 kV accelerating voltage, 20-mm beam diameter, 6nA...
测试点位通过图像进行定位估算。分析工作在Cameca SX-50型波长色散型电子探针（wavelength dispersive electron microprobe）上完成，该设备工作参数为：加速电压15 kV，束斑直径20 mm，束流强度6 nA……
