Full-Time Faculty

• Geology 1001 - Physical Geology
• Geology 3041 - Igneous and Metamorphic Petrology
• Geology 7044 - Advanced Metamorphic Petrology
• Geology 7941 - Seminar in Igneous and Metamorphic Petrology

Mineral chemistry as an insight to petrogenesis

Tourmaline is an extremely important mineral whose significance goes well beyond being another attractive mineral. Tourmaline gives information on the thermal and fluid history of rocks in which it develops, is intimately associated with some of the world's premier metallic ore deposits, retains chemical signatures of the sources of tourmaline detritus in clastic rocks, yields isotopic evidence for the environmental sources of the boron that makes up tourmaline, is an extremely critical link in the boron cycle on the Earth and has many other useful petrogenetic features. For more information, visit the Tourmaline Today website at http://geol.lsu.edu/henry/Research/tourmaline/TourmalineToday.htm

Biotite is important in metamorphic rocks over a wide range of bulk compositions and metamorphic grades. In metapelites it preferentially partitions Ti relative to other silicate minerals, and the most relevant petrologic aspects involve interrelationships among Ti levels and T, P, biotite crystal chemistry, and coexisting mineral assemblage. For background and application of the Ti-in-biotite geothermometer, visit http://geol.lsu.edu/henry/Research/biotite/TiInBiotiteGeothermometer.htm

Tectonometamorphism of ancient mountain belts

The rocks of the Beartooth Mountains of Montana and Wyoming span 4 billion years of earth history. The geologic features range from the more recent spectacular glaciation of the Beartooth Plateau and the volcanism and thermal activity of the Yellowstone area (south of the Beartooth Mountains) to the ancient crust containing constituents that are over 4 billion years old. Most of my recent research has concentrated on the well-exposed metamorphosed supracrustal rocks that are part of a large tectonic melange caught up in the areally extensive, 2.8 billion year old granitoid plutons of the eastern Beartooth Mountains. For more information, visit http://geol.lsu.edu/henry/Research/Beartooths/BeartoothMountains.htm

• Ph.D., 1981, University of Wisconsin - Madison
• M.S., 1976, University of Wisconsin - Madison
• B. S., 1973, University of Wisconsin - Madison

Henry, D.J. (2006) Tourmaline-fluid interactions: Fluorine monitor and the role of tourmaline crystallography. Abstracts of the International Mineralogical Association.

L. J. Patterson, S. J. Bentley, D. Henry, G. R. Dickens, A. W. Droxler, L. C. Peterson, B. N. Opdyke (2006) Petrological and Geochemical Investigations of Deep Sea Turbidite Sands in the Pandora and Moresby Troughs, Source to Sink Papua New Guinea Focus Area. AAPG Annual Convention Technical Program.

Henry, D. J. (2005) The Pet Rock Project: An introduction to the culture of research. Geological Society of America Abstracts with Program, 37, 344. (abstract)

Sun, H., Henry, D.J. and Slack, J. (2005) Low-Al, ferrian tourmaline as a signature of former evaporite deposits: An example from the Neoproterozoic metaevaporites of central Namibia. Geological Society of America Abstracts with Program, 37. (abstract)

Armstrong, C.K., Dutrow, B.L. and Henry, D.J. (2005) When bivalves get the blues: Vivianite replacement of bivalves from the Kerch iron-ore deposits, Ukraine. Geological Society of America Abstracts with Program, 37. (abstract)

Henry, D.J., Mogk, D.W. and Mueller, P.A. (2005) The middle crust of the Wyoming Province - Ground-truthing above 2000 meters elevation in the Beartooth Mountains, Montana and Wyoming. Abstract for EarthScope in the northern Rockies Workshop. (pdf of abstract) (EarthScope in the Northern Rockies website).

Henry, D. J., Guidotti, C. V. and Thomson, J. A. (2005) The Ti-saturation surface for low-to-medium pressure metapelitic biotite: Implications for Geothermometry and Ti-substitution Mechanisms.  American Mineralogist, 90, 316-328. (pdf of article)

Henry, D.J. (2005) Fluorine - X-site vacancy avoidance in natural tourmaline: internal vs. external control. Abstracts of the 2005 Goldschmidt Conference, Moscow, Idaho, abstract reference number 1318.

Patterson, L J, Bentley, S J, Henry, D, Droxler, A, Dickens, G, Opdyke, B and Peterson, L  (2004), Petrology and Provenance of Turbidite Sands From the Pandora and Moresby Troughs, Source to Sink Papua New Guinea Focus Area, Eos Trans. AGU,  85(47), Fall Meet. Suppl., Abstract OS51B-1302

Henry, D.J. and Guidotti, C.V. (2004) “Ground truthing” biotite in peraluminous and metaluminous metamorphic rocks. Geological Society of America Abstracts with Program, 36. (abstract)

Henry, D.J. and Guidotti, C.V. (2004) Ti substitution mechanisms in biotite: Perspectives from a biotite Ti-saturation surface. Abstracts of the Goldschmidt Conference.

Minarik, W.G. and Henry, D. (2004) Early Archean Osmium in Chromitites from the Beartooth Range, Montana. Eos - Transactions of the American Geophysical Union, 85(17), Joint Assembly Supplement, Abstract V23D-02. (abstract)

Medaris, J. G., Jr., Fournelle, J. H. and Henry, D. J. (2003) Tourmaline-bearing quartz veins in the Baraboo quartzite, Wisconsin: occurrence and significance of foitite and “oxy-foitite”. Canadian Mineralogist, 41, 749-758.(abstract) (pdf of article)

Henry, D. J. and Dutrow, B. L. (2003) Fluorine – X-site vacancy avoidance in natural tourmaline. LERM 2003 – Book of Abstracts, 30-31.

Henry, D. J. (2003) Tourmaline as a geochemical tape recorder in metamorphic rocks. Geological Society of America Abstracts with Program, 35. (abstract)

Clark, C., Hawthorne, F. J. and Henry, D. J. (2003) Stereochemistry of 3B-site as an aid to tourmaline normalization procedures. Geological Society of America Abstracts with Program, 35. (abstract)

Henry, D.J. and Dutrow, B.L. (2003) Taos Plateau volcanic project: A vehicle for integration of concepts in igneous petrology. Transactions of the American Geophysical Union, 84: F456.

Henry, D. J., Dutrow, B. L. and Selverstone, J. (2002) Compositional polarity in replacement tourmaline – an example from the Tauern Window, Eastern Alps. Geological Materials Research, 4, no. 2, 23 p.

Henry, D. J. and Guidotti, C. V. (2002) Ti in biotite from metapelitic rocks: Temperature effects, crystallochemical controls and petrologic applications. American Mineralogist, 87, 375-382.

Henry, D. J. and Dutrow, B. (2001) Compositional zoning and element partitioning of nickeloan tourmaline in a metamorphosed karstbauxite from Samos, Greece. American Mineralogist, 86, 1130-1142.

Dutrow, B. L., Travis, B., Gable, C. and Henry, D. J. (2001) Coupled heat and silica transport associated with dike intrusion into sedimentary rock: Effects on isograd location and permeability evolution. Geochimica et Cosmochimica Acta, 65, 3749-3767.

Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143.

Henry, D. J., Kirkland, B. L. and Kirkland, D. W. (1999) Sector-zoned tourmaline from the cap rock of a salt dome. European Journal of Mineralogy, 11, 263-280.

Hawthorne, F. C. and Henry, D. J. (1999) Classification of the minerals of the tourmaline group. European Journal of Mineralogy, 11, 201-215.

Dutrow, B., Foster, C. T., Jr. and Henry, D. J. (1999) Tourmaline-rich pseudomorphs in sillimanite zone metapelites: Demarcation of an infiltration front. American Mineralogist, 84, 794-805.

Corine Armstrong