Evaluation of a Bespoke Antarctic Meteorite Detection System in Polar Operating Conditions

Marsh, Liam A; Verre, Wouter van; Wilson, John W.; Evatt, Geoffrey W.; Peyton, Anthony

doi:10.1109/sas48726.2020.9220085

Cited by 2 publications

(4 citation statements)

References 5 publications

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“…The Lost Meteorites of Antarctica project conducted its first field campaign to search for meteorites during part of the Antarctic summer in 2018–2019 (Joy et al., 2019). A second season was conducted in 2019–2020, consisting of surface meteorite collection in addition to subsurface meteorite searching using skidoo‐drawn metal detecting panels (Joy et al., 2019; Marsh et al., 2020; Wilson et al., 2020). From the first season, 36 postulated meteorite samples were returned to the United Kingdom and transported to the University of Manchester for curation and formal classification (MacArthur et al., 2022).…”

Section: Samples and Methodsmentioning

confidence: 99%

Nondestructive determination of the physical properties of Antarctic meteorites: Importance for the meteorite—parent body connection

Harvey,

MacArthur,

Joy

et al. 2023

Meteorit & Planetary Scien

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Photogrammetry is a low‐cost, nondestructive approach for producing 3‐D models of meteorites for the purpose of determining sample bulk density. Coupled with the use of a nondestructive magnetic susceptibility/electrical conductivity field probe, we present measurements for the interrogation of several physical properties, on a set of Antarctic meteorites. Photogrammetry is an effective technique over a range of sample sizes, with meteorite bulk density results that are closely comparable with literature values, determined using Archimedean glass bead or laser scanning techniques. The technique is completely noncontaminating and suitable for the analysis of rare or fragile samples, although there are limitations for analyzing reflective samples. It is also flexible, and, with variations in equipment setup, may be appropriate for samples of a wide range of sizes. X‐ray computed tomography analyses of the same meteorite samples yielded slightly different bulk density results, predominantly for samples below 10 g, although the reason for this is unclear. Such analyses are expensive and potentially damaging to certain features of the sample (e.g., organic compounds), but may be useful in expanding the measurements to accommodate an understanding of internal voids within the sample, lending itself to measurement of grain density. Measurements of bulk density are valuable for comparisons with estimates of the bulk densities of asteroids that are suggested as meteorite parent bodies.

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Section: Samples and Methodsmentioning

confidence: 99%

Nondestructive determination of the physical properties of Antarctic meteorites: Importance for the meteorite—parent body connection

Harvey,

MacArthur,

Joy

et al. 2023

Meteorit & Planetary Scien

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“…The Lost Meteorites of Antarctica project developed and deployed a novel metal detection system, designed to locate englacially trapped iron-rich meteorites (Marsh et al, 2020). Our project demonstrates the extreme challenges of Antarctic fieldwork: despite rigorous testing of the equipment, and a team experienced in deploying electronic equipment and hardware to remote fieldwork locations and polar settings, and our team's best efforts, the equipment in the field did not ultimately cover enough of the ice field we searched to test the Evatt et al ( 2016) "Missing Iron Meteorite" hypothesis.…”

Section: Science Outcomes and Future Prospectsmentioning

confidence: 99%

“…Lost Meteorites of Antarctica project subsurface meteorite detection system. (a) Birds eye view schematic of full metal detector panel system (modified from Marsh et al., 2020). (b) Full detection system deployed at Sky Blu in January 2019 (Photo: Mike Rose/BAS).…”

Section: Field Site Geological and Geomorphological Descriptionsmentioning

confidence: 99%

“…The dragging effect of the panels also left shallow (<1 cm) groves in the ice surface, which helped guide the operator's track paths. This metal detection panel system was tested in field trials in a temperate climate in the United Kingdom (Peak District, July 2019), in polar conditions in Svalbard (2018 and 2019; Marsh et al., 2020), and in Antarctica at the Sky Blu BAS ice runway (Jan 2019: Figure 9b). These trials determined optimal skidoo speeds, and highlighted numerous technical and signal processing improvements to the system implemented prior to the main field campaign.…”

Section: Field Campaignmentioning

confidence: 99%

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Overview of the Lost Meteorites of Antarctica field campaigns

Joy,

Smedley,

MacArthur

et al. 2024

Meteorit & Planetary Scien

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The Lost Meteorites of Antarctica project was the first UK‐led Antarctic meteorite recovery expedition. The project has successfully confirmed two new high‐density meteorite stranding zones in the Hutichison Icefield and Outer Recovery Icefields areas and investigated the geology of three previously unvisited Antarctic nunataks (Turner Nunatak, Pillinger Nunatak, Halliday Nunatak). The project undertook meteorite searching on the ice surface via skidoo reconnaissance and systematic searching and developed a novel pulse induction metal detection system to search for englacial iron‐rich meteorites trapped within the upper one meter of ice. In total, 121 meteorites have been recovered from the ice surface searching activities, which are now curated in the United Kingdom at the Natural History Museum London and are available for scientific analysis.

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Evaluation of a Bespoke Antarctic Meteorite Detection System in Polar Operating Conditions

Cited by 2 publications

References 5 publications

Nondestructive determination of the physical properties of Antarctic meteorites: Importance for the meteorite—parent body connection

Nondestructive determination of the physical properties of Antarctic meteorites: Importance for the meteorite—parent body connection

Overview of the Lost Meteorites of Antarctica field campaigns

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