Utility of magnetic susceptibility values for the petrographic analysis of weathering crust basement samples

Authors

  • Alfredo Hernández-Ramsay Geominera Oriente
  • Emilio Escartín-Sauleda Instituto Superior Politécnico José Antonio Echeverría, CUJAE
  • Martha Gutiérrez-Herrero Empresa Geominera Oriente, Santiago de Cuba

Keywords:

magnetic susceptibility, weathering crust, laterites, Eastern Cuba.

Abstract

This article exposes the resolving power of the magnetic susceptibility measurements in basement minerals samples of the lateritic weathering profile as an element of complementary analysis in the petrographic characterization of the rocks, and useful in the mapping of the magnetic heterogeneities of the basement. The comparison of the magnetic susceptibility data with the petrographic data of different samples revealed that even in samples that correspond to homogeneous lithotypes, great heterogeneities and differences can be manifested from the physical-mineralogical point of view. In general, a high concordance was observed between the intensity of the weathering processes in the rock samples, and the values of the magnetic susceptibility of such samples. The results support the possibility of extrapolating the composition information to samples with magnetic susceptibility measurements and without petrographic studies.

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References

COLEMAN, R. G. Ophiolites: Ancient Oceanic Litosphere? Springer–Verlag, 1977. 282 p.

DELGADO, R. Magnetometría. La Habana: Pueblo y Educación, 1979.

HERNÁNDEZ, A. J. Metodología para la investigación de la susceptibilidad magnética en muestras de cortezas de intemperismo del norte de oriente de Cuba. Tesis de maestría. La Habana: ISPJAE, 2009.

HERNÁNDEZ, A. J.; RODRÍGUEZ, A.; CHÁVEZ, S.; RODRÍGUEZ, A. Y CHAVÉZ, S. Características magnéticas de la corteza de intemperismo y su basamento en la región nororiental de Cuba. En: Congreso de Geología, Minería y Geofísica. Memorias Geomin, La Habana, 19-23 marzo 2001. ISBN 959-7117-10-X. Disponible en: http://www.redciencia.cu/geobiblio/paper/2001_Geomin_Prospeccion_Geofisica.pdf

MILOVSKI, A.V. Y KÓNONOV, O.V. Mineralogía. Moscú: Mir, 1988.

RUÍZ, R.; PÉREZ, M.; HERNÁNDEZ, A. Y GUTIÉRREZ, M. Trabajos especiales de la exploración del yacimiento La Delta. Informe Geominera Oriente para Moa Nickel S. A. 2013.

SHERIFF, R. E. Encyclopedic Dictionary of Applied Geophysics. USA: Society of Exploration Geophysicists, 2002.

STRECKEINSEN, A. To each plutonic rock, its proper name. Earth Science Reviews, 12(1): 1-33, 1976.

Published

2018-01-16

How to Cite

Hernández-Ramsay, A., Escartín-Sauleda, E., & Gutiérrez-Herrero, M. (2018). Utility of magnetic susceptibility values for the petrographic analysis of weathering crust basement samples. Minería & Geología, 34(1), 17–30. Retrieved from https://revista.ismm.edu.cu/index.php/revistamg/article/view/art2_No1_2018

Issue

Vol. 34 No. 1 (2018): January-March

Section

Geología
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