New Mexico Geological Society Annual Spring Meeting — Abstracts


Paleomagnetic, Anisotropy of Magnetic Susceptibility, and Structural Data Bearing on Magma Emplacement and the growth of the Miocene, Cinder Cone

Adam Ray Brister1 and Michael Petronis1

1New Mexico Highlands University, Box 9000, Las Vegas, NM, 87701, abrister@live.nmhu.edu

https://doi.org/10.56577/SM-2013.84

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The Trosky Volcano is a monogenic cinder-spatter cone associated with the middle Miocene Jicin Volcanic field of northeast Czech Republic.  The intent of this research is to map the Trosky Volcano subvolcanic deformation, magma plumbing system geometries, eruptive dynamics, and cinder cone morphology using paleomagnetic, anisotropy of magnetic susceptibility (AMS), and structural data.  The results from this study will be used to compare and contrast three other monogenic volcanoes that exhibit exposed magma feeders systems.  We hypothesize that cinder cones conceal multiple magma conduits as opposed to a single conduit as envisioned for many volcanic constructs.  By comparing the results from three other monogenic volcanic centers 1) Cienega Volcano, NM, 2) several quarried volcanoes in the Raton-Clayton volcanic field, NM, (future study) and 3) Lemptégy Volcano, France to the data from the Trosky Volcano should enhance our understanding of both ancient and active intra-rift volcanic systems.  Preliminary results are encouraging with high values of magnetic susceptibility, single component demagnetization response, and pseudosingle domain grain size. The data obtained will enhance our understanding of subsurface magma transport to the eruptive vent and provide insight into subvolcanic deformation processes.  These data should further allow us to provide insight into the growth and hazards associated with active volcanic systems worldwide.

Keywords:

Paleomagnetic, anisotropy magnetic susceptibility, magma emplacement, Miocene, Cinder Cone

pp. 10

2013 New Mexico Geological Society Annual Spring Meeting
April 12, 2013, Macey Center, New Mexico Tech campus, Socorro, NM
Online ISSN: 2834-5800