Rapid Raman mapping of a fulgurite

  title={Rapid Raman mapping of a fulgurite},
  author={Elizabeth A. Carter and Matthew A. Pasek and Tim Smith and Terence P. Kee and Peter M. Hines and Howell G. M. Edwards},
  journal={Analytical and Bioanalytical Chemistry},
AbstractA fulgurite is a naturally occurring glass formed when lightning hits sand, rock, or soil. The formation of fulgurites is accompanied by mineralogical and sometimes compositional changes, and may record information about the environment in which they were formed. A previous investigation using Raman point spectroscopy discovered the presence of anatase, a low-temperature polymorph of TiO2, and polyaromatic hydrocarbons within a fulgurite. These findings indicate that there were regions… 

Mineralogical and compositional features of rock fulgurites: A record of lightning effects on granite

Abstract Fulgurites are a naturally occurring glass formed when sand, rock, or soil is struck by atmospheric electrical discharges (lightning). The aim of this paper is to provide insights into the

The occurrence of iron silicides in a fulgurite: Implications for fulgurite genesis

Rapidly formed eutectic textures are observed in Fe silicides in a fulgurite from Michigan. The 14 cm-diameter fulgurite was formed in sandy glacial till in 2014 near Houghton Lake, Michigan.

Physico-chemical study of an exogenic fulgurite from a thunderstorm on 10th August 2013 in Dallas, TX

Droplet-like exogenic fulgurites comprise a minor grouplet of natural glasses resulting from powerful lightning strikes. Reports on such type-V fulgurites are scarce in the literature. In this work,

Lightning-induced high temperature and pressure microstructures in surface and subsurface fulgurites

This work broadens the near-surface environments in which rock fulgurite has been reported, and provides a detailed description of microstructures that can be compared to those formed during other types of extreme metamorphic events.


The ~3.5 Ga Apex chert from Western Australia contains microstructures that have been described as among the oldest identified microbial fossils on earth. Despite their morphological resemblance to

The forensics of fulgurite formation

Natural disasters such as forest fires can result in extensive and costly property damage. These events may be the result of a human error or system failure triggered by electrical discharge, and in

The response of zircon to the extreme pressures and temperatures of a lightning strike.

Zircon dissociation to ZrO2 and SiO2 is a high-temperature, relatively low-pressure phenomenon, consistent with previous suggestions that lightning strikes involve extreme temperatures as well as pressures greater than those usually generated in Earth's crust but rarely > 10 GPa.



A Raman spectroscopic study of a fulgurite

The Raman spectra revealed several forms of crystalline and fused silica and also the presence of polyaromatic hydrocarbons found in an interfacial zone of a glass bubble, suggesting that some regions of the fulgurite specimen were not subjected to temperatures of 1800°C, which are attained when lightning hits the surface of sand or a rock.

The fulgurite of Torre de Moncorvo (Portugal): description and analysis of the glass

The fulgurite of Torre de Moncorvo (Portugal) was formed by lightning striking a small electricity pylon; it consists morphologically of a central cylinder with radial ramifications several metres

Paleoecology reconstruction from trapped gases in a fulgurite from the late Pleistocene of the Libyan Desert

When lightning strikes the ground, it heats, melts, and fuses the sand in soils to form glass tubes known as fulgurites. We report here the composition of CO 2 , CO, and NO contained within the

Lightning Strike Fusion: Extreme Reduction and Metal-Silicate Liquid Immiscibility

Thermodynamic calculations indicate that temperatures in excess of 2000 K and reducing conditions approaching those of the SiO2-Si buffer were needed to form the coexisting metallic and silicate liquids.

SEM observations on some sand fulgurites from northern Australia

ABSTRACT Sand fulgurites fragments from a siliceous coastal dune field in North Queensland have been examined with a scanning electron microscope (SEM). The fulgurites show a number of morphological

Shock metamorphism of quartz in nature and experiment: II. Significance in geoscience*

— The occurrence of shock metamorphosed quartz is the most common petrographic criterion for the identification of terrestrial impact structures and lithologies. Its utility is due to its almost

Extraterrestrial Flux of Potentially Prebiotic C, N, and P to the Early Earth

This work quantifies the sources of potentially prebiotic, extraterrestrial C, N, and P and correlates these fluxes with a comparison to total Ir fluxes, and estimates the effect of atmosphere on the survival of material.