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23 results

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  • Pedogenic carbonate as a transient soil component in a humid, temperate forest (Michigan, USA)

  • Julia R. Kelson, Tyler E. Huth, Kirsten Andrews, Miriam N. Bartleson, Thure E. Cerling, Lixin Jin, Matthew P. Salinas, Naomi E. Levin
  • Journal:
    Quaternary Research / Volume 124 / March 2025
    Published online by Cambridge University Press:
    04 February 2025, pp. 105-120
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  • In humid, continental Michigan, we identified pedogenic carbonate in a soil profile developed on glacial drift sediments, as rinds, rhizoliths, and filaments (at depths >50 cm). Given that the climate setting is unusual for pedogenic carbonate, we investigated its formation with environmental monitoring and isotope analyses of carbonate (δ13C, δ18O, Δ47, and 14C) and waters (δ18O and δ2H). We found covariation in δ13C and Δ47 amongst the carbonate types (rhizoliths, rinds, filaments, bulk soil, and detrital clasts), and 14C ages of rinds that predate plausible formation ages. The δ13C and Δ47 values of the bulk carbonate and some of the pedogenic morphologies are not fully compatible with pedogenic formation in the modern environment. The δ18O data from precipitation and river waters and from carbonates are not uniquely identifying; they are compatible with the soil carbonate being pedogenic, detrital, or a mix. We conclude that the soil carbonate is likely a physical mix of pedogenic and detrital carbonate. Pedogenic carbonate is forming in this humid setting, likely because seasonal cycles in soil respiration and temperature cause cycles of dissolution and re-precipitation of detrital and pedogenic carbonate. The pedogenic carbonate may be a transient feature as carbonate-rich till undergoes post-glacial chemical weathering.

Gay Guerrilla
  • Julius Eastman and His Music
  • Edited by Renée Levine Packer, Mary Jane Leach
  • With contributions by David Borden , Luciano Chessa , Renee Levine Packer , Ryan Dohoney , Andrew Hanson-Dvoracek , R. Nemo Hill , Matthew Mendez , John Patrick Thomas and Kyle Gann
  • Published by:
    Boydell & Brewer
    Published online:
    26 May 2021
    Print publication:
    15 December 2015
  • Composer-performer Julius Eastman (1940-90) was an enigma, both comfortable and uncomfortable in the many worlds he inhabited: black, white, gay, straight, classical music, disco, academia, and downtown New York. His music, insistent and straightforward, resists labels and seethes with a tension that resonates with musicians, scholars, and audiences today. Eastman's provocative titles, including Gay Guerrilla, Evil Nigger, Crazy Nigger, and others assault us with his obsessions. Eastman tested limits with his political aggressiveness, as recounted in legendary scandals he unleashed like his June 1975 performance of John Cage's Song Books, which featured homoerotic interjections, or the uproar over his titles at Northwestern University. These episodes areexamples of Eastman's persistence in pushing the limits of the acceptable in the highly charged arenas of sexual and civil rights.

    In addition to analyses of Eastman's music, the essays in Gay Guerrilla provide background on his remarkable life history and the era's social landscape. The book presents an authentic portrait of a notable American artist that is compelling reading for the general reader as well as scholars interested in twentieth-century American music, American studies, gay rights, and civil rights.

    Contributors: David Borden, Luciano Chessa, Ryan Dohoney, Kyle Gann, Andrew Hanson-Dvoracek, R. Nemo Hill, Mary Jane Leach, Renée Levine Packer, George E. Lewis, Matthew Mendez, John Patrick Thomas

    Renée Levine Packer's book This Life of Sounds: Evenings for New Music in Buffalo received an ASCAP Deems Taylor Award for excellence. Mary Jane Leach is a composer and freelance writer, currently writing music and theatre criticism for the Albany Times-Union.

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