Leica Science Lab - Tag : Geology https://www.leica-microsystems.com//science-lab/tag/tags/geology/show/Tag/ Article tagged with Geology en-US https://www.leica-microsystems.com/20352 EM Sample Preparation Macroscale to Nanoscale Pore Analysis of Shale and Carbonate Rocks Physical porosity in rocks, like shale and carbonate, has a large effect on the their storage capacity. The pore geometries also affect their permeability. Imaging the visible pore space provides insights into the physical pore space, pore geometries, and the associated mineral and organic matter phases relevant for storage and transport. For example, organic-matter porosity is an important property of mature organic-rich shales providing storage capacity for liquids and gases, like hydrocarbons. Imaging the microstructure is the only technique which delivers data giving direct insight into the organic matter porosity. However, imaging porosity in fine-grained shale as well as carbonate rocks in a representative way at high resolution is challenging. https://www.leica-microsystems.com//science-lab/macroscale-to-nanoscale-pore-analysis-of-shale-and-carbonate-rocks/ Tue, 04 Sep 2018 22:00:00 +0000 PhD Jop Klaver, PhD Joyce Schmatz, MSc Mingze Jiang, PhD James DeRose https://www.leica-microsystems.com/19763 Metallography Quality Assurance Forensics See the Structure with Microscopy - Know the Composition with Laser Spectroscopy The advantages of a 2-in-1 materials analysis solution combining optical microscopy and laser induced breakdown spectroscopy (LIBS) for simultaneous visual and chemical inspection are described in this report. The basic principles of the 2-in-1 solution and a comparison between it and other common materials analysis methods, such scanning electron microscopy (SEM), are explained to demonstrate how a rapid, efficient workflow is achieved. A 2-in-1 analysis solution can reduce significantly the cost and time for obtaining material image and composition data. Such data are instrumental in assuring quality and reliability to make confident decisions quickly during production, quality control, failure analysis, and research and development in industries and fields, such as automotive and metallurgy. https://www.leica-microsystems.com//science-lab/see-the-structure-with-microscopy-know-the-composition-with-laser-spectroscopy/ Mon, 11 Jun 2018 13:39:00 +0000 PhD James DeRose, Dr. Kay Scheffler https://www.leica-microsystems.com/20117 Metallography Leica is MAD about LIBS When analyzing material for cleanliness testing, users normally just want a simple way to know whether the particle under scrutiny is normal debris or something more risky. Users can now “LIBS” it to acquire rapidly the composition and then move onto the next manufacturing step. https://www.leica-microsystems.com//science-lab/leica-is-mad-about-libs/ Sun, 22 Apr 2018 22:00:00 +0000 Mike Tjepkema, PhD James DeRose https://www.leica-microsystems.com/18724 Digital Microscopy How to Analyze Prepared and Unprepared Geological Samples with One Digital Microscope Polarized light microscopes have been used in classical earth science studies for the last 100 years. Since then a lot of progress has been made to increase the user friendliness, ergonomy, and optical performance of such microscopes. Still, one thing has not changed: Classical polarized light (compound) microscopes can only be used for prepared samples, because the working distance they offer is insufficient for whole samples. This article explains how earth scientists can analyze prepared and unprepared samples for polarized light applications with one single instrument, namely the Leica DVM6 M digital microscope. With the right choice of accessories it serves as a semi-quantitative polarization microscope. https://www.leica-microsystems.com//science-lab/how-to-analyze-prepared-and-unprepared-geological-samples-with-one-digital-microscope/ Thu, 18 Aug 2016 07:21:00 +0000 MSc Michael Doppler https://www.leica-microsystems.com/17377 EM Sample Preparation Triple-beam Ar-Ion-Milling with a Rotary Stage to Decorate Grain Boundaries and Substructures in Rock Salt Decoration of grain boundaries in polycrystalline rocks has a long tradition in Structural Geology as in a monomineralic rock the recrystallized grain size is a good indicator for the paleostress conditions. Understanding the mechanical properties of rock salt and its deformation behavior is of major importance for the prediction of long-term stability of nuclear waste repositories, and our understanding of the dynamics of salt-related sedimentary basins which host the majority of oil and gas accumulations on Earth. https://www.leica-microsystems.com//science-lab/triple-beam-ar-ion-milling-with-a-rotary-stage-to-decorate-grain-boundaries-and-substructures-in-rock-salt/ Thu, 03 Mar 2016 11:01:00 +0000 PhD Joyce Schmatz, PhD Oliver Schenk, PhD Jop Klaver, PhD Janos Urai, PhD Wolfgang Grünewald https://www.leica-microsystems.com/15702 Stereo Microscopy New Predatory Cockroaches (Insecta: Blattaria: Manipulatoridae fam.n.) from the Upper Cretaceous Myanmar Amber We describe a new extinct lineage Manipulatoridae (new family) of cockroaches from the Upper Cretaceous (Cenomanian) amber of Myanmar. Manipulator modificaputis gen. et sp. n. is a morphologically unique extinct cockroach that represents the first (of a total of 29 known worldwide) cockroach family reported exclusively from the Myanmar amber. https://www.leica-microsystems.com//science-lab/new-predatory-cockroaches-insecta-blattaria-manipulatoridae-famn-from-the-upper-cretaceous-myanmar-amber/ Wed, 14 Oct 2015 16:22:00 +0000 https://www.leica-microsystems.com/16165 EM Sample Preparation A Good Place for Materials Scientists and Mineralogists to prepare their EM Samples In June 2014, the Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC) of the Université Pierre et Marie Curie in Paris became a Leica reference lab for EM Sample Preparation with equipment like the Leica EM TXP target surfacing systems and the Leica EM TIC 3X ion beam milling system. In the interview, Imène Estève, engineer at the Centre National de Recherches Scientifiques (CNRS) and head of the SEM-FIB national facility, in charge of running the lab, tells us about how this cooperation has developed. https://www.leica-microsystems.com//science-lab/a-good-place-for-materials-scientists-and-mineralogists-to-prepare-their-em-samples/ Fri, 07 Aug 2015 09:31:00 +0000 MPhys, MChem Imène Esteve, Florence Hauger, Claudia Müller https://www.leica-microsystems.com/13800 EM Sample Preparation Analysis of Oil Shale as an Alternative Source of Energy For some years now, the search for alternative sources of raw materials has concentrated on oil shale deposits. As the exploitation of these raw materials is still extremely complex and expensive, analysis of oil shale samples is therefore extremely important for identifying the deposit’s potential in advance and optimizing mining methods. https://www.leica-microsystems.com//science-lab/analysis-of-oil-shale-as-an-alternative-source-of-energy/ Tue, 24 Jun 2014 08:23:00 +0000 PhD Wolfgang Grünewald, Kerstin Pingel