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August 27, 2017 Weekly Geology Guest, Asphalt

August 27, 2017
Greetings from the Bluff Park Back Porch, way up yonder on Shades Mountain (1,109′) in Alabama:
For the next several weeks we will delve into Industrial Minerals, While they are not glamorous, they are terribly important to our modern way of life. 

Typical examples of industrial rocks and minerals are limestone, clays, sand, gravel, diatomite, kaolin, bentonite, silica, barite, gypsum, and talc. Some examples of applications for industrial minerals are construction, ceramics, paints, electronics, filtration, plastics, glass, detergents and paper.

Natural Asphalt
Asphalt /ˈæsˌfɔːlt, –ˌfɑːlt/, also known as bitumen /ˈbɪəmɪn, bɪˈtmɪn/, is a sticky, black, and highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch.
Refined asphalt.  2008.  by Burger


Natural bitumen from the Dead Sea  2007.  by Daniel Tzvi


Pitch Lake, Trinidad. 2016.  by Grueslayer
Athabasca oil sand of the McMurray Formation as seen in drill cores.  2007.  by Georgialh

USA tar bubble la brea CA.jpg
Tar bubble at the La Brea Tar Pits — in Los Angeles, California, USA.  2004,  by Daniel Schwen.

Bituminous outcrop of the Puy de la Poix, Clermont-Ferrand, France.  2010.  by Vales.

“The use of asphalt for waterproofing and as an adhesive dates at least to the fifth millennium BC in the early Indus valley sites like Mehrgarh, where it was used to line the baskets in which crops were gathered.[23]”

List of Industrial Minerals

Editors Note:  It is the intent of this site to keep this discussion as simple as possible, so as to educate the interested general public and not to discuss with the geology crowd the latest geologic theories and nuances.  Thanks, R
“No copyright infringement intended.
The rights belong to their respective owners”
Copyright Disclaimer: Under Section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.
Author’s Request:  If you see any pictures that you know the source and photographer, let me know immediately.  Thanks!  R

Images have been searched by TinEye Reverse Image Search.

We will now start down the Industrial Mineral dusty trail and continue with ball clays.

Enjoy the adventure!

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