Naturally occurring gold nanoparticles and nanoplates

R.M. Hough; R.R.P. Noble; G.J. Hitchen; R. Hart; S.M. Reddy; Martin Saunders; Peta Clode; D. Vaughan; J. Lowe; D.J. Gray; R.R. Anand; C.R.M. Butt; M. Verrall

doi:10.1130/G24749A.1

Naturally occurring gold nanoparticles and nanoplates

R.M. Hough, R.R.P. Noble, G.J. Hitchen, R. Hart, S.M. Reddy, Martin Saunders, Peta Clode, D. Vaughan, J. Lowe, D.J. Gray, R.R. Anand, C.R.M. Butt, M. Verrall

Centre for Microscopy, Characterisation & Analysis

Research output: Contribution to journal › Article › peer-review

123 Citations (Scopus)

Abstract

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 first direct observation of colloidal nanoparticulate gold in nature, confirming this as an active mechanism of gold transport during the weathering of gold deposits.

Original language	English
Pages (from-to)	571-574
Journal	Geology
Volume	36
Issue number	7
DOIs	https://doi.org/10.1130/G24749A.1
Publication status	Published - 2008

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title = "Naturally occurring gold nanoparticles and nanoplates",

abstract = "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 first direct observation of colloidal nanoparticulate gold in nature, confirming this as an active mechanism of gold transport during the weathering of gold deposits.",

author = "R.M. Hough and R.R.P. Noble and G.J. Hitchen and R. Hart and S.M. Reddy and Martin Saunders and Peta Clode and D. Vaughan and J. Lowe and D.J. Gray and R.R. Anand and C.R.M. Butt and M. Verrall",

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doi = "10.1130/G24749A.1",

language = "English",

volume = "36",

pages = "571--574",

journal = "Geology",

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TY - JOUR

T1 - Naturally occurring gold nanoparticles and nanoplates

AU - Hough, R.M.

AU - Noble, R.R.P.

AU - Hitchen, G.J.

AU - Hart, R.

AU - Reddy, S.M.

AU - Saunders, Martin

AU - Clode, Peta

AU - Vaughan, D.

AU - Lowe, J.

AU - Gray, D.J.

AU - Anand, R.R.

AU - Butt, C.R.M.

AU - Verrall, M.

PY - 2008

Y1 - 2008

N2 - 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 first direct observation of colloidal nanoparticulate gold in nature, confirming this as an active mechanism of gold transport during the weathering of gold deposits.

AB - 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 first direct observation of colloidal nanoparticulate gold in nature, confirming this as an active mechanism of gold transport during the weathering of gold deposits.

U2 - 10.1130/G24749A.1

DO - 10.1130/G24749A.1

M3 - Article

SN - 0091-7613

VL - 36

SP - 571

EP - 574

JO - Geology

JF - Geology

IS - 7

ER -

Naturally occurring gold nanoparticles and nanoplates

Abstract

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