GeoNews
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| Image gallery updated |
| Posted on: 11/05/2007 |
| If you are keen on seeing the lab where i currently work, head over to the pictures subsection. I mainly use rig 3 for hotpressing of olivine material and deformation. The wave attenuation machine, or rig 2 will be used by me for forced torsional wave attenuation experiments on the same material with varying dislocation densities at different temperatures. |
| The RSES laboratory |
| Posted on: 21/04/2007 |
| Want to know in what kind of laboratory I work in at the Research School of Earth Sciences? I made some photos a while back of some of the apparatuses there. You can check them out here. I use the Green machine for hot-pressing of synthetic olivine pellets into a sample, for deformation and annealing experiments. I use the torsional oscillation apparatus for attenuation experiments on these samples which basically means I apply rotary shear on the sample (on the scale of micrometers) and at the same time I send seismic waves at various high frequencies through the sample. That will give me information of the shear modulus of the olivine material and its internal friction denoted by Q^-1. My olivine samples will have different dislocation densities, obtained by annealing at different times, which should in theory give different results for the shear modulus and attenuation Q^-1 values. |