Robert L. Folk

Sedimentary Petrology

Ph. D., Pennsylvania State College, 1952

 

 

 

 

 

 

Since I retired from teaching in 1988, my career has done an about-face.  Through dumb luck (and a new SEM) I made the initial discovery of mineralized nannobacteria (dwarf bacterial forms) in the carbonate hot springs of Viterbo, near Rome, Italy.  This evidence was later used by NASA to propose nannobacterial fossils in the Martian meteorite.  The topic still enrages biologists who do not like to be beaten at their own game.  For more info, look up the word “nannobacteria” on any computer search engine.  Humor courtesy F. Leo Lynch.

Research:
Among subjects under continuing study are:

Mineralogy and Nannobiology of hot springs – mainly in Italy of course where the cuisine is great.

The role of nannobacteria in creating carbonate rocks, from ooids to caliches.

Desultory work on cherts, opals, sulfides of iron and other metals, and metal oxides.  Why is Mars red?  Nannobacterial oxidation of iron – need you ask?

Continuing study with F. L. Lynch on nannobacterial precipitation of clay minerals.  Yes, they plug oil reservoirs and Austin pipes.

Nannobacteria in Martian meteorites (I’ve now studied two examples, thanks to L. A. Taylor) and in Carbonaceous chondrites.  Yes, there was life out in space.

Weathering of igneous rocks by nannobacteria under a variety of conditions, tropical humid (Tahiti), desert (West Texas), and Alpine (Lombardia, Italia).

The probable role of nannobacteria in human disease: kidneystones, arthritis, cataracts and (with Brenda Kirkland and several others including researchers at the Mayo Clinic) even on heart disease and arterial plaque.

The bottom line is:  All these occurrences look virtually identical.  If some of them are not nannobacteria, scientists will need to find out what they really are.

Selected Publications

Research

 

Department of Geological Sciences at UT Austin
Page Modified on 24 October, 2006