An Exogenic Fulgurite Occurrence in Oswego, Oswego County, New York

Walter, Michael

doi:10.1080/00357529.2010.517134

Cited by 5 publications

(4 citation statements)

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“…Walter [40] reported a fulgurite also with ambiguous origins found in Oswego, NY, that occurred when lightning struck a power line and followed a nearby guy-wire, and suggested that aluminum iron silicide alloys (Al 4 Si 3 Fe) were formed associated with the exogenic fulgurite. These unusual aluminum and iron silicide alloys were also found in the Farmington, CT, and Zacatecas fulgurites but did not form in spherical aggregates [22,37].…”

Section: The Occurrences Of Iron Silicides In Fulguritesmentioning

confidence: 99%

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Iron Silicides in Fulgurites

et al. 2021

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Iron silicide minerals (Fe-Si group) are found in terrestrial and solar system samples. These minerals tend to be more common in extraterrestrial rocks such as meteorites, and their existence in terrestrial rocks is limited due to a requirement of extremely reducing conditions to promote their formation. Such extremely reducing conditions can be found in fulgurites, which are glasses formed as cloud-to-ground lightning heats and fuses sand, soil, or rock. The objective of this paper is to review reports of iron silicides in fulgurites, note any similarities between separate fulgurite observations, and to explain the core connection between geological environments wherein these minerals are found. In addition, we also compare iron silicides in fulgurites to those in extraterrestrial samples.

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Section: The Occurrences Of Iron Silicides In Fulguritesmentioning

confidence: 99%

“…%) of fulgurites glasses of varying composition, based on work in Feng et al[5]. The fulgurites bearing iron silicides are highlighted in colors other than black[2,3,5,22,[35][36][37][38]40,41,43,44]. The fulgurite from El Rosario, Mexico, is not shown as major element compositions of the glass were not provided.…”

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Iron Silicides in Fulgurites

et al. 2021

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“…The second documented case, reported by Walter in 2008, occurred in Oswego, New York, USA (Fig. 1b) (Walter, 2011). The third documented occurrence was in August 2013 in a suburb of Dallas, Texas, USA (Fig.…”

Section: Introductionmentioning

confidence: 92%

Characterization of exogenic fulgurites from an archaeological site in Tiedra, Valladolid, Spain

et al. 2019

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Studies on type-V fulgurites are very sparse in the literature. This work reports on the characterization of natural exogenic fulgurites found at the archaeological site of Cerro de la Ermita (Tiedra, Valladolid, Spain), which was firstly a Celtiberian and then a Roman locum sacrum. Data from X-ray powder diffraction, X-ray fluorescence spectroscopy, Fourier-transform infrared spectroscopy and Raman spectroscopy suggest that the fulgurites consist of naquite, piroxenes, iron oxides, shocked quartz and neo-formed cristobalite.

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“…Phosphides such as schreibersite have been identified in multiple fulgurites: from Michigan 3 , Pennsylvania 19 , and Illinois 4 . In addition, even more reduced material such as iron silicides are recognized in multiple fulgurites 3,[23][24][25][26][27][28][29] . Such material is presumed to form from the intensely reducing environment possibly generated by a combustion reaction of in situ organics 3,30 .…”

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Routes to reduction of phosphate by high-energy events

Bindi

Feng

Pasek

2023

Commun Earth Environ

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Phosphate minerals such as those in the apatite group tend to be the dominant forms of phosphorus in minerals on the Earth’s surface. Phosphate can be reduced to phosphides during high-energy events, such as lightning and impacts. Here we show that, in addition to formation of metal phosphides, a new compound was formed by lightning in a fulgurite from New Port Richey, Florida, USA. A calcium phosphite material, ideally CaHPO3, was found in spherules mainly consisting of iron silicides that formed by lightning-induced fusion of sand around a tree root. This phosphite material bears a phosphorus oxidation state intermediate of that of phosphides and phosphates in a geologic sample and implicates phosphites as being potentially relevant to other high-energy events where phosphorus may partially change its redox state, and material similar to this phosphite may also be the source of phosphite that makes up part of the phosphorus biogeochemical cycle.

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An Exogenic Fulgurite Occurrence in Oswego, Oswego County, New York

Cited by 5 publications

References 4 publications

Iron Silicides in Fulgurites

Iron Silicides in Fulgurites

Characterization of exogenic fulgurites from an archaeological site in Tiedra, Valladolid, Spain

Routes to reduction of phosphate by high-energy events

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