Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion

Thomas Cudahy; Mike Caccetta; Matilda Thomas; Robert Hewson; Michael Abrams; Masatane Kato; Osamu Kashimura; Yoshiki Ninomiya; Yasushi Yamaguchi; Simon Collings; Carsten Laukamp; Cindy Ong; Ian Lau; Andrew Rodger; Joanne Chia; Peter Warren; Robert Woodcock; Ryan Fraser; Terry Rankine; Josh Vote; Patrice De Caritat; Pauline English; Dave Meyer; Chris Doescher; Bihong Fu; Pilong Shi; Ross Mitchell

doi:10.1038/srep23702

Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion

Thomas Cudahy^*, Mike Caccetta, Matilda Thomas, Robert Hewson, Michael Abrams, Masatane Kato, Osamu Kashimura, Yoshiki Ninomiya, Yasushi Yamaguchi, Simon Collings, Carsten Laukamp, Cindy Ong, Ian Lau, Andrew Rodger, Joanne Chia, Peter Warren, Robert Woodcock, Ryan Fraser, Terry Rankine, Josh VotePatrice De Caritat, Pauline English, Dave Meyer, Chris Doescher, Bihong Fu, Pilong Shi, Ross Mitchell

^*Corresponding author for this work

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

47 Citations (Scopus)

Abstract

The Earth's surface comprises minerals diagnostic of weathering, deposition and erosion. The first continental-scale mineral maps generated from an imaging satellite with spectral bands designed to measure clays, quartz and other minerals were released in 2012 for Australia. Here we show how these satellite mineral maps improve our understanding of weathering, erosional and depositional processes in the context of changing weather, climate and tectonics. The clay composition map shows how kaolinite has developed over tectonically stable continental crust in response to deep weathering during northwardly migrating tropical conditions from 45 to 10 Ma. The same clay composition map, in combination with one sensitive to water content, enables the discrimination of illite from montmorillonite clays that typically develop in large depositional environments over thin (sinking) continental crust such as the Lake Eyre Basin. Cutting across these clay patterns are sandy deserts that developed <10 Ma and are well mapped using another satellite product sensitive to the particle size of silicate minerals. This product can also be used to measure temporal gains/losses of surface clay caused by periodic wind erosion (dust) and rainfall inundation (flood) events. The accuracy and information content of these satellite mineral maps are validated using published data.

Original language	English
Article number	23702
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep23702
Publication status	Published - 30 Mar 2016

Access to Document

10.1038/srep23702

Cite this

Cudahy, T., Caccetta, M., Thomas, M., Hewson, R., Abrams, M., Kato, M., Kashimura, O., Ninomiya, Y., Yamaguchi, Y., Collings, S., Laukamp, C., Ong, C., Lau, I., Rodger, A., Chia, J., Warren, P., Woodcock, R., Fraser, R., Rankine, T., ... Mitchell, R. (2016). Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion. Scientific Reports, 6, Article 23702. https://doi.org/10.1038/srep23702

@article{221de4eda3994090b16fa24d74ed3473,

title = "Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion",

abstract = "The Earth's surface comprises minerals diagnostic of weathering, deposition and erosion. The first continental-scale mineral maps generated from an imaging satellite with spectral bands designed to measure clays, quartz and other minerals were released in 2012 for Australia. Here we show how these satellite mineral maps improve our understanding of weathering, erosional and depositional processes in the context of changing weather, climate and tectonics. The clay composition map shows how kaolinite has developed over tectonically stable continental crust in response to deep weathering during northwardly migrating tropical conditions from 45 to 10 Ma. The same clay composition map, in combination with one sensitive to water content, enables the discrimination of illite from montmorillonite clays that typically develop in large depositional environments over thin (sinking) continental crust such as the Lake Eyre Basin. Cutting across these clay patterns are sandy deserts that developed <10 Ma and are well mapped using another satellite product sensitive to the particle size of silicate minerals. This product can also be used to measure temporal gains/losses of surface clay caused by periodic wind erosion (dust) and rainfall inundation (flood) events. The accuracy and information content of these satellite mineral maps are validated using published data.",

author = "Thomas Cudahy and Mike Caccetta and Matilda Thomas and Robert Hewson and Michael Abrams and Masatane Kato and Osamu Kashimura and Yoshiki Ninomiya and Yasushi Yamaguchi and Simon Collings and Carsten Laukamp and Cindy Ong and Ian Lau and Andrew Rodger and Joanne Chia and Peter Warren and Robert Woodcock and Ryan Fraser and Terry Rankine and Josh Vote and {De Caritat}, Patrice and Pauline English and Dave Meyer and Chris Doescher and Bihong Fu and Pilong Shi and Ross Mitchell",

year = "2016",

month = mar,

day = "30",

doi = "10.1038/srep23702",

language = "English",

volume = "6",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

}

Cudahy, T, Caccetta, M, Thomas, M, Hewson, R, Abrams, M, Kato, M, Kashimura, O, Ninomiya, Y, Yamaguchi, Y, Collings, S, Laukamp, C, Ong, C, Lau, I, Rodger, A, Chia, J, Warren, P, Woodcock, R, Fraser, R, Rankine, T, Vote, J, De Caritat, P, English, P, Meyer, D, Doescher, C, Fu, B, Shi, P & Mitchell, R 2016, 'Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion', Scientific Reports, vol. 6, 23702. https://doi.org/10.1038/srep23702

TY - JOUR

T1 - Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion

AU - Cudahy, Thomas

AU - Caccetta, Mike

AU - Thomas, Matilda

AU - Hewson, Robert

AU - Abrams, Michael

AU - Kato, Masatane

AU - Kashimura, Osamu

AU - Ninomiya, Yoshiki

AU - Yamaguchi, Yasushi

AU - Collings, Simon

AU - Laukamp, Carsten

AU - Ong, Cindy

AU - Lau, Ian

AU - Rodger, Andrew

AU - Chia, Joanne

AU - Warren, Peter

AU - Woodcock, Robert

AU - Fraser, Ryan

AU - Rankine, Terry

AU - Vote, Josh

AU - De Caritat, Patrice

AU - English, Pauline

AU - Meyer, Dave

AU - Doescher, Chris

AU - Fu, Bihong

AU - Shi, Pilong

AU - Mitchell, Ross

PY - 2016/3/30

Y1 - 2016/3/30

N2 - The Earth's surface comprises minerals diagnostic of weathering, deposition and erosion. The first continental-scale mineral maps generated from an imaging satellite with spectral bands designed to measure clays, quartz and other minerals were released in 2012 for Australia. Here we show how these satellite mineral maps improve our understanding of weathering, erosional and depositional processes in the context of changing weather, climate and tectonics. The clay composition map shows how kaolinite has developed over tectonically stable continental crust in response to deep weathering during northwardly migrating tropical conditions from 45 to 10 Ma. The same clay composition map, in combination with one sensitive to water content, enables the discrimination of illite from montmorillonite clays that typically develop in large depositional environments over thin (sinking) continental crust such as the Lake Eyre Basin. Cutting across these clay patterns are sandy deserts that developed <10 Ma and are well mapped using another satellite product sensitive to the particle size of silicate minerals. This product can also be used to measure temporal gains/losses of surface clay caused by periodic wind erosion (dust) and rainfall inundation (flood) events. The accuracy and information content of these satellite mineral maps are validated using published data.

AB - The Earth's surface comprises minerals diagnostic of weathering, deposition and erosion. The first continental-scale mineral maps generated from an imaging satellite with spectral bands designed to measure clays, quartz and other minerals were released in 2012 for Australia. Here we show how these satellite mineral maps improve our understanding of weathering, erosional and depositional processes in the context of changing weather, climate and tectonics. The clay composition map shows how kaolinite has developed over tectonically stable continental crust in response to deep weathering during northwardly migrating tropical conditions from 45 to 10 Ma. The same clay composition map, in combination with one sensitive to water content, enables the discrimination of illite from montmorillonite clays that typically develop in large depositional environments over thin (sinking) continental crust such as the Lake Eyre Basin. Cutting across these clay patterns are sandy deserts that developed <10 Ma and are well mapped using another satellite product sensitive to the particle size of silicate minerals. This product can also be used to measure temporal gains/losses of surface clay caused by periodic wind erosion (dust) and rainfall inundation (flood) events. The accuracy and information content of these satellite mineral maps are validated using published data.

UR - http://www.scopus.com/inward/record.url?scp=84963649734&partnerID=8YFLogxK

U2 - 10.1038/srep23702

DO - 10.1038/srep23702

M3 - Article

SN - 2045-2322

VL - 6

JO - Scientific Reports

JF - Scientific Reports

M1 - 23702

ER -

Satellite-derived mineral mapping and monitoring of weathering, deposition and erosion

Abstract

Access to Document

Other files and links

Fingerprint

Cite this