Biochemistry of plant-microbe symbioses explains ironstone gravel formation and ecological function
Document Type
Conference Proceeding
Publication Date
6-2023
Conference Title
2023 Soil Science Australia Conference - Our Soil: Spirit of a Nation
Place of Publication
Darwin
Keywords
plant-microbe symbioses, Ironstone gravel, iron nodule, biogenesis, diazotrophy, laterite, nitrogenase
Disciplines
Soil Science
Abstract
Chemical weathering and hydromorphy are widely invoked in earth science disciplines to explain formation of ‘laterite and ironstone gravel’ (LG). The presence of LG is used regularly to infer age and paleoclimate conditions, despite extensive data disputing these notions: polar wander paths place LG landscapes at high latitude at supposed time of formation; oxygen isotope and stratigraphy studies infer formation of LG in cold climates; radio-isotope data from diverse LG around the world conclude recent, episodic, and perhaps continuous, formation of LG.
Recommended Citation
Galloway, P.
(2023), Biochemistry of plant-microbe symbioses explains ironstone gravel formation and ecological function, 2023 Soil Science Australia Conference - Our Soil: Spirit of a Nation, Darwin, pp.135-135.
https://library.dpird.wa.gov.au/conf_papers/280
