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Conodont dating of some Telychian (Silurian) sections in Estonia
conodonts stratigraphy Telychian Sheinwoodian Silurian Estonia
2009/10/21
Several Telychian–Sheinwoodian strata exposed in Estonia are precisely dated using conodont biostratigraphy. The beds in the Valgu-1 section correspond to the uppermost Distomodus staurognathoide...
Transmission X-ray Diffraction of Undisturbed Soil Microfabrics Obtained by Microdrilling in Thin Sections
Clay Fabrics Clay Minerals Microdrilling Micromorphology Transmission X-ray Diffraction Undisturbed Microsamples
2011/12/7
Abstract: Clay mineralogical studies by X-ray diffraction performed on extracted <2-祄 fractions do not always represent all clay mineral constituents present in the soil. In this work, transmission X-...
Transmission Electron Microscopy of Fine-Grained Phyllosilicates in Ultra-Thin Rock Sections
Transmission Electron Microscopy Fine-Grained Phyllosilicates Ultra-Thin Rock Sections
2012/2/17
A method is described for preparing electron-transparent sections of fine-grained argillaceous rocks suitable for making transmission micrographs. A sediment and a slate are used as examples. Sections...