(SHRIMP)
SENSITIVE HIGH RESOLUTION ION MICRO PROBE FACILITY
The SHRIMP are large mass spectrometers that allow in situ isotopic and trace element micro-analysis of complexly zoned minerals in grain mounts and thin section plugs, with a spatial resolution of 5-20 microns.


WE SPECIALISE IN PRECISE, ACCURATE, HIGH SPATIAL RESOLUTION, URANIUM-THORIUM-LEAD GEOCHRONOLOGY OF ZIRCON, MONAZITE, XENOTIME, TITANITE, ALLANITE, COLUMBITE-TANTALITE, BADDELEYITE, RUTILE, CASSITERITE, OPAL, APATITE, PEROVSKITE, GADOLINITE, CHEVKINITE, ILMENORUTILE, URANINITE AND ZIRCONOLITE.

TECHNIQUES

In situ U-Th-Pb geochronology

Trace element analysis

Ti-in-Zircon geothermometry

Depth profiling

SHRIMP II A

SHRIMP II is fitted with a Cs source, electron gun and 5 channel M/C, valued at $1M.

SHRIMP II A

SHRIMP II A is currently being developed for stable isotope analysis of O in zircon and other silicates, and S in sulphides.

SHRIMP II B

Single collector doing in situ thing section analysis of M and X, and current Internet capability doing SROS.

SAMPLE PREP LABORATORY

Our prep lab provides fume hoods, ovens, Au/C/Al coating, an optical and reflected light microscope with a digital camera, a micro diamond saw, ultrasonic baths and sample polishing equipment.

SAMPLE PREP LABORATORY

Our prep lab provides fume hoods, ovens, Au/C/Al coating, an optical and reflected light microscope with a digital camera, a micro diamond saw, ultrasonic baths and sample polishing equipment.

APPLICATIONS

The SHRIMP ion microprobes have revolutionised geology. Just a few of the application areas are listed below.

Early Earth Evolution

SHRIMP U-Pb ages and Ti-in–zircon thermometry of Jack Hills and Mount Narryer zircon have provided constraints on the crystallisation environment of zircon from the earliest Hadean Earth. The oldest zircon on Earth was measured in the SHRIMP Facility.

Metamorphism and Crustal Fluid Flow

Research on prograde and retrograde metamorphic reactions, P-T-t loops, fault movement and deep crustal fluid circulation all rely heavily on the Curtin SHRIMP facility, and it’s extensive collection of accessory mineral Reference Materials.

Standards Development

Micro-analytical techniques all require Reference Materials (RM), and the SHRIMP Facility at Curtin is involved with characterisation of RM of accessory minerals for the geochemistry community.

Geochronology Technique Development

Curtin SHRIMP researchers study the effects of mineral chemistry, mineral structure, solids solutions, radiation damage and microstructural changes on secondary ion yields and SIMS results.

Geologic Time Scale

The SHRIMP provides accurate geochronological constraints on major global geological events, i.e. correlation of glacial epochs, Large Igneous Province flood basalts and mass extinctions.

Paleontology

SHRIMP age data constrains the ages of the earliest mega-fossils and stromatolites.

Meteorite Impact Structures

The Curtin SHRIMPs have been used in studies of lunar impact breccia, meteorite impact breccia and micro-spherule beds, providing a bombardment flux history and an understanding of impact processes.

Ore Deposit Geochronology and Exploration

Research into ore localisation, ore sources, and ore remobilisation by UWA Centre for Exploration Targeting academics, as well as ore deposit exploration by Australian and international mining companies relies on the Curtin SHRIMP Facility.

Regional Mapping

The Curtin SHRIMP Facility is essential to the mapping program of the Geological Survey of Western Australia, having provided ages for >1200 samples.

Plate Tectonics Reconstruction and Crustal Evolution

Accurate SHRIMP age data on intrusive dikes swarms, gigantic flood basalt provinces and granite intrusion is essential for plate tectonic models of super continent formation and subduction related fold belts.

Sedimentology

The Curtin SHRIMP has provided detrital mineral populations statistics and xenotime and monazite ages constrain the early diagenetic history of sedimentary systems.

Extra-terrestrial Geochronology and Geochemistry

The age and effects of impacts, thermal history of Lunar samples from NASA and Martian meteorites have been studied on our SHRIMP. The oldest zircons of the Moon and Mars were dated in the SHRIMP Facility.

Igneous Petrology-Volcanology

SHRIMP U-Th disequilibria and trace element data allows us to the study the evolution of a magma chamber in young (younger than 1 Ma) volcanics.

FEATURED PROJECTS

SEE MORE
Dr. Allen Kennedy
SHRIMP
Facility Leader
Ph: +61 8 9266 3285
Dr. Cristina Talavera
SHRIMP
Post Doctoral Researcher / Technical Officer
Ph: +61 8 9266 3708
Mr. Hao Gao
SHRIMP
Technical Officer
Ph: +61 8 9266 7576