20121214152228 Hough Cochilco 2012 Modified

7/29/2019 20121214152228 Hough Cochilco 2012 Modified

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Satellite ASTER geoscience mappingfor Chile

C3DMM/Minerals Down Under Flagship

December 2012


2/23

34IGC | Towards global 3D mineralogy | 10th August 2012

WA Centre of Excellence for

3D Mineral Mapping

C3DMM

ASTER Geoscience Map of Australia Project


3/23

Minerals

Searching the Deep Earth A vision for exploration geoscience in Australia.

Australian Academy of Sciences, 2012

A key advance will be the recognition of unique datasets that can be appliedat a range of scales to map the various facets of a mineral system, from metaland fluid source, to pathways, depositional sites and fluid exit conduits

buthas the exploration industry ever been empowered with public,

pre-competitive mineralogy, especially for detecting alteration footprints?

Resources still to be found at the surface

Mineral maps a new map of the earths surface for the 21st Century

34IGC | ASTER for UNCOVER| 22nd November 2012


4/23

ASTER geoscience mapping for Chile, December2012

ASTER satellite system1st (only) geoscience-tuned satellite sensor

Japanese designed/built (ERSDAC)

USA satellite platform (TERRA)Launched December 1999

Basic specifications 60 by 60 km image

14 spectral bands:

3 VNIR (Landsat config) @ 15 m

6 SWIR @ 30 m 5 TIR @ 90 m

Push-broom for VNIR and SWIR

Whiskbroom for TIR

Significant Instrument/data Issues

atmospheric correction, SWIR X-talk, TES

SWIR module switched off in 2009

Data now only available through ERSDAC GDSwww.gds.aster.ersdac.or.jp/gds_www2002/index_e.html

3 complete global mosaics
http://www.gds.aster.ersdac.or.jp/gds_www2002/index_e.htmlhttp://www.gds.aster.ersdac.or.jp/gds_www2002/index_e.htmlhttp://www.gds.aster.ersdac.or.jp/gds_www2002/index_e.html


5/23

C3DMMs ASTER Geoscience Products Input ASTER L1B radiance-at-sensor data

provided by ERSDAC, NASA and USGS

Correction for instrument, illumination,atmospheric and geometric effects

About 4000 ASTER scenes selected out ofmore than 30,000 across Australia

Hyperion imagery used for reduction andvalidation of cross-calibrated ASTER mosaicto reflectance

Band ratios used as base algorithms andmasked for complicating effects (e.g. clouds)

Generated Geoscience Products include:

Mineral Group content maps

Mineral Group composition maps Associated maps (e.g. Green Vegetation

abundance)

Silicate index

low high

View the ASTER maps using World Wind

http://www.ga.gov.au/aster-viewer

View and download ASTER maps:

http://portal.auscope.org/portal/gmap.html;

https://sarig.pir.sa.gov.au/Map;

http://geoscience.nt.gov.au/giwsor

CSIRO'sC3DMM webpage

Eastern

Arunta Inlier
http://www.ga.gov.au/aster-viewerhttp://portal.auscope.org/portal/gmap.htmlhttps://sarig.pir.sa.gov.au/Maphttp://geoscience.nt.gov.au/giwsftp://ftp.csiro.au/arrc/WA_ASTER/ftp://ftp.csiro.au/arrc/WA_ASTER/http://geoscience.nt.gov.au/giwshttps://sarig.pir.sa.gov.au/Maphttp://portal.auscope.org/portal/gmap.htmlhttp://www.ga.gov.au/aster-viewerhttp://www.ga.gov.au/aster-viewerhttp://www.ga.gov.au/aster-viewer


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GSWA Open Day, Fremantle, February 24th 2012

ASTER geoscience product descriptionshttp://c3dmm.csiro.au
http://c3dmm.csiro.au/http://c3dmm.csiro.au/


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34IGC | Towards global 3D mineralogy | 10th August 2012

http://portal.auscope.org/portal/gmap.html
http://portal.auscope.org/portal/gmap.htmlhttp://portal.auscope.org/portal/gmap.html


8/23

Silica indexAlOH Group contentAlOH Group compositionFerric oxide compositionFerric oxide content

17 ASTER Geoscience maps of Australia


9/23

channel iron ore

10 km

Iron oxide zoom for iron ore exploration


10/23low high

HyMap opaque mineral content

schist, meta-arenite,

slate, phyllite, calc-

silicate rocks and meta-

rhyolites

graphitic slate,

phyllite, meta-

siltstones and

calcareous rock

phyllite, slate, mica schist

Graphitic metasediments

reduced

hot

oxidized

fluids

Starra published 100K geology


11/23RIII=3.2 (Al-rich)

HyMap muscovite Al-chemistry

Merlin

RIII=4.0 (Al-poor)

Starra published 100K geology

hot

oxidized

fluids


12/23

Jervois Cu-Au metamorphic schist of ore

zone: quartz-chlorite (biotite),muscovite cordieritegarnetmagnetite

rhyolite, granitic gneiss,amphibolite

cordierite-biotite schist

Exploration for Cu-Audeposits in the EasternArunta


13/23

Jervois Cu-Au

metamorphic schist of ore zone: quartz-chlorite (biotite),muscovite cordierite garnetmagnetite

rhyolite, granitic gneiss, amphibolite cordierite-biotite schist

Camp scale mapping

chl

( bt?)

carbonates

MgOH content

Bellbird

Marshall

high low


14/23

NT ASTER Geoscience Map Workshop

Regional application oflearnings from Jervois area

chl

( bt?)

Georgina

Basin

Sediments

MgOH content

Ferric Oxide cont.

AlOH content

high Fe-oxide content in qtz-ser-schist

enhanced white mica alteration as haloaround mineral deposits!?

enhanced chlorite (bt?!) alteration inQtz-chl-mgt schist in vicinity to Cu-Aushowings!?

Bellbird

Bellbird

Bellbird

high low

more

prospective

areas?

l i


15/23

Theme 1160 15

CSIRO HY-logging AuScope National Virtual Core LibraryTSGAuspec as a partner and service provider

http://nvcl.csiro.au

http://portal.auscope.org/gmap.html
http://nvcl.csiro.au/http://portal.auscope.org/gmap.htmlhttp://portal.auscope.org/gmap.htmlhttp://nvcl.csiro.au/


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Powered by the Spatial Information Services StackImpact beyond exploration

and growing

Marine

biophysical

modelling

CMAR

Environment,

Water, CSG

BoM, WfHC, GA

Groundwater

Uni Ballarat,VeRSI,

DPI Vic


17/23

MINEX 2012 | Towards global 3D mineralogy | 10th August 2012

Dust storms/sources1957-1984

Ground meteorological data

McTainsh & Pitlado, 1987

LEB


18/23


ASTER Silica Indexnot quartz sand quartz sand

Great Sandy

Lit t le

Sandy

Great Victo ria

Gibson

Tanami

Simpson

Strzelecki

Sturt StoneyX

Sandy deserts


19/23


ASTER Desertification index

DI=SI/(SI+CI)

where:

SI is scaled ASTER Silica Index

CI is scaled ASTER AlOH Group content

clay quartz sand0 1

desertification risk

cropping land


20/23

Geophysical Inversion for Aquifer &Groundwater Characterisation

Review of system capability

Conductivity-Depth Sectionsfrom Full Non-Linear Inversion

of data acquired by different

AEM systems

Li ki h d l d h i t d t d


21/23

Upward flux

from deep

saline aquifer

Localised point source

discharge from deep

aquifer

Linking hydrogeology and geophysics to understandsurface water and groundwater interactions


22/23

Australian Mining Journal2012 Explore of the Year- C3DMM


23/23

Thank you

C3DMM/Minerals Down Under Flagship

Satellite ASTER geoscience mapping for Chile

20121214152228 Hough Cochilco 2012 Modified

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