2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2 Dear Colleagues, (with apologies for cross posting) Please consider submitting an abstract to the special session celebrating, in part, MSA's 100th anniversary, at the GSA 2019 meeting in Phoenix - *T28: The many faces of tourmaline. *Abstract submissions are due June 25 at 23:59 Pacific time. GSA will be held from Sept. 22-25, 2019 in Phoenix. Abstracts can be submitted by selecting this session - T28:, at: https://community.geosociety.org/gsa2019/learn/technical/topical T28. Mineralogical Society of America at 100: The Many Faces of Tourmalineâ??From Crystallographic Complexity to Recorder of Crustal Evolution In honor of the 100th anniversary of the Mineralogical Society of America, a celebration of minerals! Tourmaline has become an unparalleled recorder of crustal geologic and tectonic processes. Its value as a petrogenetic indicator mineral in both rocks and sediments stems from, in part, its capacity to acquire and retain a wide variety of chemical signatures from the rocks in which it developed. Once embedded, these chemical fingerprints are retained by its low volume diffusion and recalcitrant nature. Tourmalineâ??s extreme thermal and baric stability ensures that it provides information from the near surface conditions to the deepest levels of the crust. Such information includes provenance, time and temperature history of the rock in which it forms, and fluids with which it interacts. As a consequence of new methods to unravel these signatures combined with new instrumental techniques as well as developments in the fundamental understanding of its crystallography, its utility as a chemical recorder is expanding. New information is being deduced and derived from studies of tourmaline, the quintessential crustal borosilicate mineral. This session brings together the wide array of studies utilizing tourmaline and the many new advances in the study of tourmaline that contribute to its increasing ability to fingerprint geologic information. Contributions are welcomed from the many disciplines that study tourmaline - geochemistry, geochronology, mineral chemistry, crystallography, petrology, structural geology and new techniques and methods for extracting its chemical signatures. Invited Speakers: *Dr. Marta Codeço**, *GFZ-Potsdam *Prof. Peter Nabelek, *Univ. of Missouri We look forward to seeing you in Phoenix! Conveners: Darrell Henry and Barb Dutrow, Louisiana State Univ., Baton Rouge ============================================================== Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI). ASU - http://www.asu.edu/ PSU - http://pdx.edu/ GVP - http://www.volcano.si.edu/ IAVCEI - http://www.iavcei.org/ To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxx. To contribute to the volcano list, send your message to: volcano@xxxxxxx. Please do not send attachments. ============================================================== ------------------------------
