TITLE

Ancient biodeterioration: an FT�Raman spectroscopic study of mammoth and elephant ivory

AUTHOR(S)
Edwards, Howell G. M.; Jorge Villar, Susana E.; Hassan, Nik F. Nik; Arya, Nlin; O'Connor, Sonia; Charlton, Donna M.
PUB. DATE
October 2005
SOURCE
Analytical & Bioanalytical Chemistry;Oct2005, Vol. 383 Issue 4, p713
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Raman spectra of mammoth ivory specimens have been recorded using near-infrared excitation, and comparisons made with modern Asian and African elephant ivories. Whereas the most ancient mammoth ivory (60�65 ky) showed no evidence for an organic collagen component, more recent samples of mammoth ivory indicated that some preservation had occurred, although with biodeterioration of the protein structure exhibited by the amide I and III bands in the 1200�1700 cm-1 region of the Raman spectrum. The consequent difficulties encountered when applying chemometrics methods to ancient ivory analysis (which are successful for modern specimens) are noted. In the most ancient mammoth ivory specimens, which are extensively fragmented, evidence of mineralization is seen, with the production of gypsum, calcite and limonite; Raman microscopic analysis of crystalline material inside the fissures of the mammoth ivory shows the presence of gypsum as well as cyanobacterial colonisation. The application of Raman spectroscopy to the nondestructive analysis of archaeological materials in order to gain information of relevance to their preservation or restoration is highlighted.
ACCESSION #
18591474

 

Related Articles

  • Blood Ivory. Johns, Chris // National Geographic;Oct2012, Vol. 222 Issue 4, p4 

    An introduction is presented in which the editor discusses an article about the African elephant ivory trade from the issue, including topics such as poaching, ivory sales, and ivory as a mark of wealth and status.

  • A race against extinction. Tarshis, L. // Scholastic Update;3/23/90, Vol. 122 Issue 14, p22 

    Reports on international efforts to save the African elephant from extinction. Why poachers are killing the animals in record numbers; Corruption among law enforcers; Decision to mandate a total ban on the ivory trade; Importance of educating the public against purchasing ivory.

  • African elephants stay off endangered list.  // Outdoor Life;Nov92, Vol. 190 Issue 5, p17 

    Reports that things are looking up for the African elephant, thanks to widespread anti-poaching campaigns and the current United States ban on ivory trade. Defeat of US Fish and Wildlife Service proposal to reclassify the species from its current threatened listing to that of endangered.

  • Ivory Crush.  // Scholastic News -- Edition 4;2/17/2014, Vol. 76 Issue 14, p2 

    The article discusses whether destroying ivory could help save elephants. Topics covered include information on ivory crush in China, threat posed by poachers to elephants and removal of the tusks of elephants. Also mentioned is the importance of crushing ivory to save African elephants from...

  • Elephants in trouble. Heim, B. // Boys' Life;Sep90, Vol. 80 Issue 9, p18 

    Reports on African elephants who are in serious trouble due to poachers. Numbers of elephants left; Why poaching increased; The ban on the sale of ivory throughout much of the world.

  • Isotope fingerprints in elephant bone and ivory. Vogel, J.C.; Eglington, B.; Auret, J. M. // Nature;8/23/1990, Vol. 346 Issue 6286, p747 

    Reports on an analysis of the lead isotope ratios that can show distinctions between several different populations of the African elephant, aiding in conservation efforts. Isotopic composition and environment.

  • Running for their lives. Morell, V. // International Wildlife;May/Jun90, Vol. 20 Issue 3, p4 

    Covers the dwindling population of African elephants due to poaching for high-priced tusk ivory. Efforts of Richard Leakey, Director of Kenya's Wildlife Department, and others to save the beleaguered elephants; Changing attitudes; Worldwide attention to problem. INSET: Tracing the plight of...

  • African elephants: surviving by the skin of their teeth. Santiapillai, Charles // Current Science (00113891);10/10/2009, Vol. 97 Issue 7, p996 

    In this article the author focuses on the ivory of the African elephants which is used for trade. He states that the visible ivory part of the tusk of the elephant is composed of dentine with an outer layer of enamel which makes the ivory economically valuable. He points out that the ivory of...

  • (ELEPHANT) DEATH AND TAXES: PROPOSED TAX TREATMENT OF ILLEGAL IVORY. Ostrowski, Angela // Animal Law;2015, Vol. 21 Issue 2, p221 

    African elephants are poached for their ivory at alarming rates. I f the current level of poaching continues, it is projected they will be extinct from the wild in the year 2025. Preserving the African elephant species is important from an animal rights, conservation, ecological, economical, and...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics