Naturally occurring gold nanoparticles and nanoplates
During the weathering of gold deposits, exceptionally pure, <200 nm diameter, nanoparticulate gold plates (6 nm thick) are formed. The particles display controlled growth of both size and shape and signs of assembly to form belts and sheets. The gold is associated and intergrown with minerals...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal Article |
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Geological Society of America Inc
2008
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| Subjects: | |
| Online Access: | http://geology.geoscienceworld.org/cgi/content/full/36/7/571?ijkey=CNUDfjnFQoeuY&keytype=ref&siteid=gsgeology http://hdl.handle.net/20.500.11937/9846 |
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| author | Hough, R. Noble, R. Hitchen, G. Hart, Robert Reddy, Steven Saunders, M. Clode, P. Vaughan, D. Lowe, J. Gray, D. Anand, R. Butt, C. Verrall, M. |
| author_facet | Hough, R. Noble, R. Hitchen, G. Hart, Robert Reddy, Steven Saunders, M. Clode, P. Vaughan, D. Lowe, J. Gray, D. Anand, R. Butt, C. Verrall, M. |
| author_sort | Hough, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | During the weathering of gold deposits, exceptionally pure, <200 nm diameter, nanoparticulate gold plates (6 nm thick) are formed. The particles display controlled growth of both size and shape and signs of assembly to form belts and sheets. The gold is associated and intergrown with minerals formed by evaporation and is interpreted to have been deposited rapidly from saline groundwater during a drying event. The size and morphology of the gold nanoparticles and nanoplates are identical to the products of experimentally manufactured gold colloids. This represents the fi rst direct observation of colloidal nanoparticulate gold in nature, confi rming this as an active mechanism of gold transport during the weathering of gold deposits. |
| first_indexed | 2025-11-14T06:27:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-9846 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:27:22Z |
| publishDate | 2008 |
| publisher | Geological Society of America Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-98462017-09-13T16:06:41Z Naturally occurring gold nanoparticles and nanoplates Hough, R. Noble, R. Hitchen, G. Hart, Robert Reddy, Steven Saunders, M. Clode, P. Vaughan, D. Lowe, J. Gray, D. Anand, R. Butt, C. Verrall, M. nanoplates colloid weathering critical zone gold nanoparticles During the weathering of gold deposits, exceptionally pure, <200 nm diameter, nanoparticulate gold plates (6 nm thick) are formed. The particles display controlled growth of both size and shape and signs of assembly to form belts and sheets. The gold is associated and intergrown with minerals formed by evaporation and is interpreted to have been deposited rapidly from saline groundwater during a drying event. The size and morphology of the gold nanoparticles and nanoplates are identical to the products of experimentally manufactured gold colloids. This represents the fi rst direct observation of colloidal nanoparticulate gold in nature, confi rming this as an active mechanism of gold transport during the weathering of gold deposits. 2008 Journal Article http://hdl.handle.net/20.500.11937/9846 10.1130/G24749A.1 http://geology.geoscienceworld.org/cgi/content/full/36/7/571?ijkey=CNUDfjnFQoeuY&keytype=ref&siteid=gsgeology Geological Society of America Inc restricted |
| spellingShingle | nanoplates colloid weathering critical zone gold nanoparticles Hough, R. Noble, R. Hitchen, G. Hart, Robert Reddy, Steven Saunders, M. Clode, P. Vaughan, D. Lowe, J. Gray, D. Anand, R. Butt, C. Verrall, M. Naturally occurring gold nanoparticles and nanoplates |
| title | Naturally occurring gold nanoparticles and nanoplates |
| title_full | Naturally occurring gold nanoparticles and nanoplates |
| title_fullStr | Naturally occurring gold nanoparticles and nanoplates |
| title_full_unstemmed | Naturally occurring gold nanoparticles and nanoplates |
| title_short | Naturally occurring gold nanoparticles and nanoplates |
| title_sort | naturally occurring gold nanoparticles and nanoplates |
| topic | nanoplates colloid weathering critical zone gold nanoparticles |
| url | http://geology.geoscienceworld.org/cgi/content/full/36/7/571?ijkey=CNUDfjnFQoeuY&keytype=ref&siteid=gsgeology http://hdl.handle.net/20.500.11937/9846 |