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and   Dr. Jürgen Schieber's Web Pages


Jürgen Schieber, shale researcher


UTA Shale Research Group


The Puzzler

Shale News

Shale Photos

Sequence Stratigraphy in
the Chattanooga Shale

Classes etc.

Curriculum Vitae

List of Publications

Bioturbation in
the Chattanooga Shale

Impact Craters and Shales
    Things Microbial Summer 2000 Field Work

Shales and Reconstruction of Ancient Environments.

If you don't know where you are going --it's the journey that counts!

Shales and mudstones are very fine grained terrigenous clastic sedimentary rocks, and they constitute approximately two-thirds of all sediments on earth. Even though a major share of the earth's sedimentary record and thus its history is recorded in them, shales and mudstones have been studied very little because of their fine grain size. Recent research has demonstrated that a lot of valuable information can be extracted from shales and mudstones, pertaining to ancient environments, climates, ocean circulation, and the history of life.
Further studies will be beneficial to the solution of engineering problems associated with ground movements in the construction of roads and houses as these are often linked to underlying shale and mudstone formations. Also, shales and mudstones are the primary source of hydrocarbons, and better understanding of these materials, their composition, and the forces that bind them may be helpful in the search for energy resources for the future.

Shales ... the final frontier of sedimentary geology. (click for information on current research projects)

classic exposure of Mancos Shale (Cretaceous) in central Utah On these pages you will have an opportunity to learn about ongoing research projects by my students and myself. Projects we are working on include an extensive study of the Late Devonian Chattanooga Shale of Tennessee and adjacent areas (New Albany Shale, Ohio Shale). Aspects of this study are: sequence stratigraphy of the Chattanooga Shale, basin analysis, shale facies, depositional environments, tracing of erosion surfaces and hiatuses, petrography, and a study of bioturbation. In the process we have also found a very interesting suite of diagenetic sedimentary grains (silica fills in Tasmanites cysts, pyrite spheres, pyrite ooids, phosphate grains) that are important components of lag deposits on erosion surfaces and sequence boundaries. In the Shale Photo pages that are linked to this page you can currently see pictures of pyrite ooids, silica filled cysts, sedimentary structures, shale microfabrics, microbial mat features, and bioturbation in shales. Other shales and mudstones we are investigating are part of the Green River Formation (Eocene), the Posidonia Shale (Jurassic), the Belt Series (Proterozoic), the Moenkopi Formation (Triassic), the Blackhawk Formation and Mancos Shale (Cretaceous), and of Pennsylvanian cyclothems in the Fort Worth Basin.
Hatch Mesa, a southern outlier of the Book Cliffs of central Utah. The exposed sediments are interbedded sandstones and shales of the Cretaceous Blackhawk Formation.

....Behold the Power of Mud ! ! !

Sites of Interest for Shale Enthusiasts

Shale Royalty: The Burgess Shale Oil Shale Journal New Albany Shale, Indiana Australien Oil Shale Plant

Green River Formation

Green River Fossils, Wyoming

Francis Creek Shale &
Mazon Creek Fossils

Gas Research Institute

Antrim Shale, Bacteria, & Natural Gas

Graptolites of the Athens Shale


It is uphill all the way, and there are no shortcuts. (click to send me mail)

© Jürgen Schieber, UTA Department of Geology

Last updated: March 12, 2001.

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