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The researchers of
Chengdu Polytechnic University and the
Zigong Dinosaur Museum have recently unearthed a dinosaur
fossil from an underground depth of 9 meters. The discovery
was based on geophysical detection results.
The
researchers have, for the first time in the world, employed
geophysical means to map the basic distribution of dinosaur
fossils and layers rich with fossils over the Dashanpu area,
Zigong City, Sichuan Province. They started from a major
detecting site of 5 km2 arranged by geographic
investigations and then narrowed it down to an area of lkm2
for further geophysical investigation. Researchers applied
high—density electric resistance to measure the target
layers and earth radar to sketch the fossil reserves in the
key fossil colony. They located the tectonic and layer
positions of the dinosaur fossil colony over the Dashanpu
area, and acquired basic knowledge of the underground
preservation status of these fossils. Based on the
preliminary geophysical detection results on dinosaur
fossils, researchers have confirmed that the dinosaur fossil
colony was distributed over 19 natural layers and the layer
that housed the dinosaur fossils should be the 5th layer in
the section rather than the 7th layer as previously believed.
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