Petrographic thin sections, or thin slices of polished rock attached to a glass slide, are used for a variety of analyses by geoscientists. The same basic steps have been used since the 1800's to create thin sections, but the technology and materials have changed.

Additional Resources for Learning to Make Thin Sections Figure 2.2.3 Screenshot of rock saw video. If you are interested in more detailed descriptions of the thin section equipment and steps to make thin sections, please see the following resources:

Studies of rock fabrics, e.g. porosity and permeability; Studies of texture and age of bones/teeth; About How to Contact Specimen Types Specimen types can be split into four groups: Thin Sections (30µm) (+ cover glass) - for examination in transmitted light or electron microscope/probe; Polished Thin sections - for examination in transmitted ...

Making thin sections is both an art and a science. We have sufficient equipment so ... without making it move. If the rock shifts during cutting it can damage the blade or burn out the drive belt. Also remember that the blade cuts a 3 mm thickness of rock (about 1/8"). 4. Using the ratchet wrench, position the vise so that the first (outside ...

We would like to show you a description here but the site won't allow us.

to produce high quality thin sections with every process. LP70 With four workstations as standard, the LP70 precision lapping & polishing system has the output capacity to produce approximately 300–500 standard thin sections per week. The LP70 can operate with four PLJ2 (or three with an automatic plate flatness monitor) or two large format

There is a section showing how this microscope can be used to study the optical properties of minerals in rock thin section. There are video clips showing the optical properties of minerals in a number of rock thin sections. The thin sections, covering a range of igneous, metamorphic and sedimentary rocks, were chosen to show the diagnostic ...

Extracting this information from thin sections is an exercise in careful detective work, a sug-gestion of how you should go about this snooping is given below. Each numbered block of text ... section represents such a small portion of a rock you want to make sure it is representative. Things to mention in your hand specimen descriptions are ...

As such, the majority of the equipment in the Thin Section Lab is available for use by properly trained CSM students. Undergraduate and graduate students also work in the lab and assist in the production of thin sections. Below please find some valuable teaching resources for online thin section and rock sample identification.

Chapter 2. Making Thin Sections 2.1 Overview: Thin Sections and Thick Sections 2.2 Thin Section and Thick Section Anatomy 2.3 History of Thin Section Preparation 2.4 Procedure: How to Make a Thin Section 2.5 Equipment: Thin Section Preparation 2.6 Thickness Standards for Polishing Thin Sections. Return to Main Table of Contents

Guided Inquiry. 2.5.7 What is the purpose of the vertical spindle grinding wheel?. 2.5.8 What are two differences between a vertical spindle wheel grinder and a horizontal spindle wheel grinder like the one on our thin section grinder used for frosting slides?. 2.5C Manual polishing. Watch these videos about polishing: AMiGEO (4/6/2018) …

A thin section is a slice of rock thin enough for light to pass through, so that it can be examined using a light microscope (see Light Microscopy). Thin sections are an essential part of geology, and especially important for studying rocks from other planets, such as the Dar al Gani 476 meteorite from Mars. Here is how a thin section is made:

The Rock and Thin Section Preparation Laboratory is operated by Mr. Pike Holman in the basement floor (Room 012) of Lindley Hall. The laboratory provides sample preparation services to students, faculty, researchers, and clients from the public and private sectors. ... Thin sections can be ordered in a standard size (55x65mm or 26x46mm") or ...

Making Petrographic Thin Sections. The following is a description of how to make thin sections using the facilities in the Union College Geology Department. Thin section facilities at other schools will probably have somewhat different equipment, supplies,and rules, but these instructions will be largely correct in anywhere. Making thin

Thin sections are slices of rock, mounted on glass, that are ground thin enough to transmit light. This allows microscopic examination of crystals, grains, fossils, and rock fabrics. Thin sections are of special value to three groups of paleontologists: 1) taxonomists studying groups whose classification rests on internal features or skeletal ...

Dry the thin section on the hot plate for 5 minutes. Place a thin line of epoxy down the center of the thin section. Make sure to use a small amount of epoxy. Take a single …

A thin section is usually a rock, but may also be a soil, pottery, bone, or metal sample used in mineralogy and petrography. The material is cut with a diamond saw to turn it into an incredibly fine object mounted on a …

Typically, a thin section is used to analyze a sample of rock, mineral, pottery, soil, bone, or even a piece of metal. A thin section is very beneficial when analyzing or assessing reservoirs. Both compositional analysis and textural analysis are possible using a thin section. Preparation. Preparing a thin section is a careful and exacting process.

A thin section of rock is prepared so mineralogists and petrologists can identify, study, and analyze the material more closely. This is known as thin section preparation. Using this method, you can classify minerals, identify problems in quarries or structures, examine mineral potential in geological environments, and identify the geographical source of …

Making Thin Sections. 1. 2.1 Overview: Thin Sections and Thick Sections. Elizabeth Johnson; Juhong Christie Liu; and Mark Peale. 2. ... This method allows students and professionals to evaluate when they have reached the correct thickness for the rock slice when making a thin section. References. Allman, M. and Lawrence, D.F. (1972) …

A method of manually making thin sections is presented. Simple techniques for maintaining parallelism that avoids direct measurement is described in detail and a number of examples are shown. ... Thin …

Thm purpose of this procedure is to document the process for the preparation of thin sections from rock samples. Thin sections am used for geological analysis on the microprobe, various microscopes, and for other geological analysis. 2. SCOPE This procedure covers any geologic thin sections prepared In ESS Division for the Yucca …

Use epoxy to attach the glass slide to the rock chip. Label the glass slide with the sample name. Cut the thin section slab. Mark the area to be cut on the rock. Cutting the thin …

The thin slice of rock can be topped with a thin cover glass to enhance the optical qualities of the thin section. Thin sections are used for mineral identification, petrographic analysis to classify rocks, and textural analysis to describe how a rock formed. Thin sections can also be stained to identify specific minerals.

Figure 2.2.1. A thin section on a petrographic microscope stage. The general procedure for creating thin sections has remained nearly the same since the modern version was …

apply knowledge and understanding of the study of rock thin sections using a polarising microscope; work with and recognise a variety of minerals and microtextures in igneous, metamorphic and sedimentary rocks; make systematic descriptions and identifications of minerals in rocks, observing them using images of …

Chapter 2. Making Thin Sections 2.1 Overview: Thin Sections and Thick Sections 2.2 Thin Section and Thick Section Anatomy 2.3 History of Thin Section Preparation 2.4 …

Rock thin section recognition provides geological information, which is crucial in petroleum geology, exploration, and mining research as a kind of fundamental work.Although many machine learning methods solve this research, there are still problems of data hierarchy and model pertinence. We use the hierarchical classification method to …

Thin sections are commonly made from porosity-permeability plugs cut from conventional cores because petrographic observations can be compared directly to porosity and permeability measurements. ... samples can be stained for specific minerals if warranted by rock composition and objectives of the petrographic analysis. Common …

Basics for the preparation of thin sections and polished thick sections 1.1 Structure of a petrographic thin section 1.2 Selection of the object section and its three-dimensional position 1.3 ...