Basic petrographic characteristics of core samples
and both groups of surface analogues are summarized in Table 2.
Compressional and shear wave velocities are calculated using the transient time of wave propagation through the core sample
, and the length of the core sample
Acoustopolarigram outlines, both VP and VC, of the core samples
are distinguished by abrupt change of amplitude that testifies to their significant heterogeneity and influence of microfracturing.
X-rays, the usual technique for studying core samples
, do not make this differentiation.
Krueger said the city may delay the project if the core samples
show that the roadway is in such bad shape that it needs a complete reconstruction.
Drillers can gather accurate core samples
twice as fast with Sonic technology and reduce waste by up to 80 percent, because no fluid, air or mud is needed.
The team will collect core samples
of fossilized coral that developed between 20,000 to 10,000 years ago.
The Department of Mines and Petroleum facility in Carlisle stores drill core samples
that can be studied by researchers and explorers seeking new petroleum and mineral discoveries.
In addition to safety, the company said the automatic functions also improve the working environment and increase productivity: A 3-m-long inner tube with core samples
can weigh about 100 kg, for instance, and handling it is heavy and hazardous work.
from those dune fields,just north of Edmonton, Alberta, show no deep layers of soil.