Density measurements and the interpretation of X-radiographic images of slices of skeleton from the colonial hard coral Porites

摘要: Abstract X radiographs were made of 3, 5 and 7 mm thick slices cut close to the central growth axis a colony Porites lobata . conventionally with raised above film cassette, turned upside down two crossed. The obtained showed that images result from cumulative absorption rays through thickness slice rather than preferential or differential at particular depths within slice. Computer-simulated an image solida show calice walls apparent in real are artifact due repeating pattern This is associated packing hexagonally shaped calices. radiography tool for understanding architectural features causing coral skeletal density patterns optimising densitometry techniques extracting environmental other information recorded as variations.