- Open Access
Preliminary dielectric and rock magnetic results for a set of prehistoric Amerindian pottery samples from different Venezuelan Islands
Earth, Planets and Space volume 58, pages1423–1431(2006)
Potsherds from 7 Venezuelan islands have been studied using a two-fold magneto/dielectric technique in order to identify clay sources and characterize different stages of pottery craftsmanship. This is the first study of archeological material using this technique. Petrographic analyses appear to agree with the clusters of data identified in scatter plots of initial magnetic susceptibility versus saturation isothermal remanent magnetization (SIRM), and natural remanent magnetization (NRM). Thus, these magnetic parameters appear to be suitable for describing clay source characteristics. Effective magnetic grain sizes, investigated via stability analyses of SIRM and anystheretic remanent magnetization (ARM) upon alternating field (AF) demagnetization, and SIRM acquisition and AF demagnetization crossover plots, seem to be related to different steps of pottery craftsmanship, namely clay preparation, finishing and firing. Thermomagnetic curves might also provide valuable information about original firing conditions. A scatter plot of SIRMs intersections versus maximum current depolarization temperatures and average activation energies, shows a coarse correlation due perhaps to the fact that these rock magnetic and dielectric data are both associated to pore-related features.
Aldana, M., E. Laredo, A. Bello, and N. Suárez, Direct signal analysis applied to the determination of the relaxation parameters from TSDC spectra of polymers, J. Polymers. Sci. B, 2197–2206, 1994.
Bishop, R. L., Archeometry of pre-Columbian sites and artifacts, Proceedings of the Symposium organized by UCLA, Institute of Archeology and the Getty Conservation Institute, Los Angeles, California, 15–63, 1992.
Bishop, R. L. and M. J. Blackman, Instrumental neutron activation analysis of archeological ceramics: scale and interpretation, Accounts of Chemical Research, 35(8), 603–610, 2002.
Boutonnet-Fagegaltier, N., J. Menegotto, A. Lamure, H. Duplaa, A. Caron, C. Lacabanne, and M. Bauer, Molecular mobility study of amorphous and crystalline phases of a pharmaceutical product by thermally stimulated current spectroscopy, J. Pharmaceutical Sci., 91(6), 1548–1560, 2002.
Brandt, M. C. and V. Costanzo-Alvarez, A preliminary Archeomagnetic study of prehistoric Amerindian pottery from Venezuela, Interciencia, 24(5), 293–299, 1999.
Bucci, C. and R. Fieschi, Ionic thermoconductivity. Method for the investigation of polarization in insulators, Physics Rev. Lett., 12, 16–19, 1964.
Cisowski, S., Interacting versus Non-interacting single domain behavior in natural and synthetic samples, Physics of the Earth and Planetary Interiors, 26, 56–62, 1981.
Costanzo-Alvarez, V., M. Aldana, N. Suárez, J. L. Gago, and W. Williams, Rock Magnetic and Dielectric characterizations of a formational contact in Cretaceous strata (Eastern Venezuela), Physics and Chemistry of the Earth, 24(9), 763–771, 1999.
Costanzo-Alvarez, V., W. Williams, A. Pilloud, O. Mirón Valdespino, and M. Aldana, Paleomagnetic results of remagnetized mid-cretaceous (Albian-Cenomanian) strata of northeastern Venezuela, Geophys. J. International, 41, 337–350, 2000.
Johnson, H. P., W. Lowrie, and D. V. Kent, Stability of anystheretic remanent magnetization in fine and coarse magnetite and maghemite particles, Geophys. J. Roy. Astro. Soc., 41, 1–10, 1975.
Kasztovszky, Zs., M. M. Mackowiak-Antczak, A. Antczak, B. Millan, J. Bermudez, and L. Sajo-Bohus, Provenance study of Amerindian pottery figurines with Prompt Gamma Activation Analysis, Nucleonik, 49(3), 107–113, 2004.
McDougall, J. M., D. H. Tarling, and S. E. Warren, The magnetic sourcing of obsidian samples from Mediterranean and Near Eastern Sources, J. Archeological Science, 10, 441–452, 1983.
Neff, H., J. W. Cogswell, and L. M. Ross, Jr., Supplementing bulk chemistry in archeological ceramic provenance investigations, in Patterns and Process: A Festchrift in Honor of Dr. Edward V. Sayre, edited by L. Van Zelst, 201–224, Washingtong DC Smithsonian Center for Materials Research and Education, 2003.
Sajo-Bohus, L., M. M. Mackowiak-Antczak, E. D. Greaves, A. Antczak, J. Bermudez, Zs. Kasztovszky, T. Poirier, and A. Simonits, Incipient Archeometry in Venezuela, Provenance study of pre-Hispanic pottery figurines, J. Radioanalytical and Nuclear Chemistry, 265(2), 247–256, 2005.
Suárez, N., E. Laredo, A. Bello, and J. Kohn, Molecular relaxation mechanisms of tyrosine-derived polycarbonates by thermally stimulated depolarization currents, J. Apply. Polim. Sci., 36(11), 1457–1466, 1997.
Suárez, N., S. Brocchini, and J. Kohn, The study of water uptake in degradable polymers by thermally stimulated depolarization currents, Biomaterials, 19, 2347–2356, 1998.
Suárez, N., M. Aldana, V. Costanzo-Alvarez, and J. Mendoza, Dynamical properties of water relaxations at a gradational lithological contact between different types of porous sedimentary rocks, J. Non-Crystalline Solids, 328, 20–30, 2003.
Symons, D. T. A. and M. T. Cioppa, Crossover plots: a useful method for plotting SIRM data in paleomagnetism, Geophys. Res. Lett., 27(12), 1779–1782, 2000.
Urrutia-Fucugauchi, J., Preliminary results of a rock-magnetic study of obsidians from central Mexico, Geofisica Internacional, 38, 83–94, 1999.
Vasquez, C. A., H. G. Nami, and A. E. Rapalini, Magnetic sourcing of obsidians in Southern South America: some successes and doubts, J. Archeological Science, 28, 613–618, 2001.
Vaz, J. E. and J. M. Cruxent, Determination of the provenience of majolica pottery found in the Caribbean area using its gamma ray induced ther-moluminiscence, American Antiquity, 40(1), 71–81, 1975.
About this article
Cite this article
Costanzo-Alvarez, V., Suárez, N., Aldana, M. et al. Preliminary dielectric and rock magnetic results for a set of prehistoric Amerindian pottery samples from different Venezuelan Islands. Earth Planet Sp 58, 1423–1431 (2006). https://doi.org/10.1186/BF03352638
- dielectric properties
- rock magnetism
- provenance studies