Petrographic

Petrographic analysis has always been a very important part of our igneous petrology, sedimentary petrology and Structural Geology programs. We are well-equipped with petrographic microscopes and related facilities, and even use thin section analysis in our 100-level labs by using modified Baush and Lomb Binocular microscopes and video projection.  

Some of our extensive Petrographic equipment includes:


Research Microscopes:

Olympus BX-50 polarizing research microscope;

2 Leitz Ortholux II Pol BK binocular microscopes;

Olympus BH-2 reflecting/polarizing binocular microscope;

Wild M-420 binocular macroscope.

 


The Olympus BX-50 polarizing research microscope in Dr. Mary Beth Gray's Structure Research Lab. Mounted on the scope is the Olympus photomicrography system.

Student and Teaching Microscopes:

20 Baush and Lomb zoom binocular microscopes modifed for petrographic work - used in the 100-level labs;

11 Leitz Labrolux Pol Student binocular microscopes - used commonly in our Optical Mineralogy and Petrology and Structural Geology courses;

A Wild M-5A and 5 Wild M3C petrographic microscopes - used in our Sedimentology Course;

Olympus pedestal-mount binocular microscope;

"Petroscope" projection macroscope with a large screen for viewing and discussion with student groups.

 


Beverly Spatzer examines a thin section from the Gettysburg Diabase with the Petroscope.

Photomicrographic and Video Projection Equipment:

2 Javelin video systems for use with use with the Leitz Ortholux II research microscopes. Systems include camera, 2-5 monitors, and video pointer;

1 new video system to be purchased in '99-00;

Olympus automatic OM-1 35mm camera with Nikon close-up lens set - mounts on a variety of our research microscopes;

Olympus PM10AD Automated Photomicrography system with attachments for standard 35mm film and instant prints;

Nikon Coolscan II 35mm slide scanner - used to make digital scans of standard or large petrographic thin sections.


Partially-resorbed olivine crystal in a thin section of gabbro, prepared and photographed by Dr. Nickelsen.