Nota sobre la plataforma rocosa de Dodgson, la cantera de Elkington y el origen de los bornhardts en el noroeste de la Península de Eyre, Australia del Sur
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La excavación de lo que fue la Roca de Dodgson, ahora la cantera de Elkington, expuso una forma de lecho rocoso cupular que puede interpretarse como una etapa en el desarrollo de bornhardts incipientes. Esto confirmó la interpretación anterior del inselberg cupular conocido como Ucontitchie Hill como una característica estructural iniciada por alteración química diferencial en el subsuelo poco profundo de masas de roca granítica con diferente densidad de fracturas, expuestos por la incisión erosiva del entorno densamente fracturado y meteorizado. Las etapas de la excavación han proporcionado argumentos para interpretar el origen de la estructura de exfoliación y otras estructuras, así como sobre el origen de arcos rotos o A-tents. Otros bornhardts en el distrito (Mt. Wudinna, Polda Rock, Little Wudinna Hill), así como otros inselbergs cercanos, tors y plataformas rocosas elevadas, pueden tener un origen similar.
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