Browsing by Author "Churchman, G. Jock"
Now showing items 1-5 of 12
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Alteration, formation, and occurrence of minerals in soils
(CRC Press, 2012)This chapter, like Churchman (2000), seeks to bring readers up to date with information and understanding about the alteration of minerals and the nature of their products in the context of the formation and development ... -
Carbon storage and DNA absorption in allophanic soils and paleosols
(Springer, New York, 2014)Andisols and andic paleosols dominated by the nanocrystalline mineral allophane sequester large amounts of carbon (C), attributable mainly to its chemical bonding with charged hydroxyl groups on the surface of allophane ... -
Clay minerals in South Australian Holocene basaltic volcanogenic soils and implications for halloysite genesis and structure
(Australian Clay Minerals Society, 2014)The clay mineralogical composition was determined of 8 soils formed from pyroclastic ejecta (tephra) from adjacent 5000-year old basaltic volcanoes at Mounts Gambier and Schank in South Australia. Both nanocrystalline ... -
Discovery of halloysite books in a ~270,000 year-old buried tephra deposit in northern New Zealand
(ACMS, 2010-08-07)As part of a wider study examining the geomechanical properties, especially sensitivity, of sequences of Quaternary pyroclastic and associated deposits and buried soils in the landslide-prone western Bay of Plenty area ... -
Discovery of halloysite books in altered silicic Quaternary tephras, northern New Zealand
(Mineralogical Society of Great Britain and Ireland, 2016-10-11)Hydrated halloysite was discovered in books, a morphology previously associated exclusively with kaolinite. From ~1.5 μm to ~1500 μm in length, the books showed significantly greater mean Fe contents (Fe2O3 = 5.2 wt%) than ...
Co-authors for G. Jock Churchman
Supervised by G. Jock Churchman
Showing up to 5 theses - most recently added to Research Commons first.
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Studies on carbon and DNA preservation in allophanic soils and paleosols on Holocene tephras in New Zealand
(University of Waikato, 2016)The recovery of ancient DNA (aDNA) and palaeoenvironmental DNA (PalEnDNA) from soils and sediments has enabled detailed paleontological and ecological records to be obtained. Because of the superior ability of allophanic ...
