|
 ENERGY PROGRAM NEWSLETTER
CONTACT
Paul Hackley
Lead Geologist
703.648.6458
Sharon Swanson
Lead Geologist
703.648.6453
Peter Warwick
Lead Geologist
703.648.6469
Laboratory Phone
703.648.6467
|
|
|
Photomicrograph Atlas
Cutinite in Metallurgical Bituminous Coals
Cutinite: A liptinite maceral in the form of a sheet reflecting its origin from leaf- or twig-covering plant cuticle, frequently exhibiting reticulation in planar section and a serrated edge in cross section (ASTM 2008).
Representative examples of macerals are labeled on each photomicrograph. Click on the thumbnail images for a larger and more detailed view. Use the "back" button on your browser to return to the Atlas:
Photomicrograph of high volatile A bituminous coal from West Virginia with a mean maximum reflectance of 0.97%. Macerals shown include cutinite, micrinite, vitrinite, inertodetrinite, and sporinite. |
Photomicrograph of high volatile A bituminous coal from West Virginia with a mean maximum reflectance of 0.97%. Macerals shown include cutinite, micrinite, vitrinite, inertodetrinite, sporinite, and semifusinite. |
Photomicrograph of high volatile A bituminous coal from West Virginia with a mean maximum reflectance of 0.97%. Macerals shown include cutinite, micrinite, and vitrinite. |
| Photomicrograph of high volatile B bituminous coal from Colorado with a mean maximum reflectance of 0.70%. Macerals shown include cutinite, vitrinite, inertodetrinite, sporinite, and funginite. |
Photomicrograph of high volatile B bituminous coal from Colorado with a mean maximum reflectance of 0.70%. Macerals shown include cutinite, vitrinite, inertodetrinite, and sporinite. |
Photomicrograph of high volatile B bituminous coal from Colorado with a mean maximum reflectance of 0.70%. Macerals shown include cutinite, vitrinite, and inertodetrinite. |
Return to Photomicrograph Atlas index
Reference
American Society for Testing and Materials (ASTM), 2008, D 2799-05a Standard Test Method for Microscopical Determination of the Maceral Composition of Coal: Annual Book of ASTM Standards, Petroleum Products, Lubricants, and Fossil Fuels, v.05.06, Gaseous Fuels; Coal and Coke, [p 349-352].
Top of Page
|
|
 RECENT PUBLICATIONS
Thermal maturity and organic composition of Pennsylvanian coals and carbonaceous shales, north-central Texas: implications for coalbed gas potential, (2009): International Journal of Coal Geology
Outside Publication - Request copy, email author.
RELATED LINKS
ASTM Subcommittee D05.28 on Petrographic Analysis of Coal and Coke:
Non-USGS Website
|
|
U.S. Department of the Interior |
U.S. Geological Survey
)
)
)
)
)
)