Tag Archive: geology

Mar 01 2014

Sedimentary Petrology Media Library

The information posted here is not in a particular order. If you want to find something specific on this page, I suggest using page text finder on your computer (Ctrl + F). Important terms and information are in bold. For additional photographs and information, please visit the following pages: – Mineralogy Media Library– Photomicrographs of …

Continue reading »

Permanent link to this article: http://sanuja.com/blog/sedimentary-petrology-media-library

Feb 08 2014

Non-skeletal Constituents-Carbonate Petrology

Coated grains Ooids – Size: 0.25 mm to 2 mm diameter – Identification: clear nucleus or site of the nucleus. Several (not always) concentric cortical layers. Cortical layers are continuous (no overlapping). Generally larger than peloids but much smaller than oncoids. When the stage is rotated under XPL, they will undergo pseudo-uniaxial cross type extinction. …

Continue reading »

Permanent link to this article: http://sanuja.com/blog/non-skeletal-constituents-carbonate-petrology

Feb 08 2014

Skeletal Microstructures-Carbonate Petrology

Homogeneous Prismatic – Size: 1 um wide and 5 – 20 um long. – Use high power magnification in petrographic microscope. – Identification: sweeping extinction. Microgranular: Dark coloured in ppl. Opaque in reflected light. Porcelaneous: dark or amber in ppl. Shiny white in xpl. Hyaline: speckled colours in xpl. – Primary characteristic of foraminifera, molluscs …

Continue reading »

Permanent link to this article: http://sanuja.com/blog/skeletal-microstructures-carbonate-petrology

Jan 15 2014

Petrology Media Library

The information posted here is not in a particular order. If you want to find something specific on this page, I suggest using page text finder on your computer (Ctrl + F). Important terms and information are in bold. For additional photographs and information, please visit the following pages: – Mineralogy Media Library– Photomicrographs of …

Continue reading »

Permanent link to this article: http://sanuja.com/blog/petrology-media-library

Dec 06 2013

Effective Study Habits

When one group of students receive their degrees, a new group is always there to take their place. Each one of us have our our way of successfully demonstrating the acquired skills and knowledge on exams. But in some disciplines such as Engineering and Geology, just a one method will not always work. While I …

Continue reading »

Permanent link to this article: http://sanuja.com/blog/effective-study-habits

Page 3 of 1112345...10...Last »