Dino Bone 3 is a photograph by - MicROCKScopica - which was uploaded on June 10th, 2019.
Dino Bone 3
There was a penetration of the light into solid substance so that I seemed to see into things, deep in....... more
Title
Dino Bone 3
Artist
- MicROCKScopica -
Medium
Photograph - Polarized Light Photomicrograph
Description
"There was a penetration of the light into solid substance so that I seemed to see into things, deep in...".
John Steinbeck was not thinking of rocks when he wrote this sentence in "Travels with Charley - In search of America". However, his feeling exactly reflects what people should think when looking at rock photomicrographs such as in this reportage on a Dinosaur Bone from Utah, USA, kindly provided by Denise Harrison
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This is an unusual reportage that discloses the secret, marvelous world hidden within stones. I will show how rocks look like when they are seen from within and with the help of a polarizing microscope.
The sample chosen for this reportage is a fragment of dinosaur bone.
The image shows a highly porous structure, with pores filled with late chalcedony and occasionally a thin rim of carbonate, and the fossil remnants of the bone tissue. Black dots denote the original position of bone cells.
In the lower part a larger void is filled with fine-grained sandstone.
The photomicrographs illustrate such amazing variety of textures in rocks and fossils with the help of interference colors. These are not an artifact but the result of the propagation of polarized light within minerals. Each image represents a fragment of bone a few millimeters across. This agate was sliced down to 30 micrometers, the conventional thickness at which geologists use to study rocks at the microscope.
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All images are transmitted, polarized light photomicrographs of 30-micron-thick rock slices (geological "thin sections"), with width of view ranging from 1 to 5 mm. Images were taken with a Canon Eos 550D camera mounted on the trinocular head of a Zeiss Axioscop 40 Pol microscope.
Technique: Photomicrograph under polarized light, crossed polars plus red tint plate.
Uploaded
June 10th, 2019
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