AusMoho

How to acknowledge AusMoho results ?

If you find the AusMoho results useful, please acknowledge AusPass and use the complete AusMoho reference, including the doi. An example of adequate acknowledgments can be found on our data policy page. As most of AusPass products, the AusMoho dataset is under a CC BY 4.0 Attribution license. For more information about AusMoho, please contact Prof. Brian Kennett at: Brian.Kennett@anu.edu.au.

Reference: Brian Kennett (2019), AusMoho, Australian Passive Seismic Server (AusPass) and the Australian National University Data Commons.
Doi: 10.25911/5cf751c17b3d4

Moho 2017

Moho surface using data to end 2017, together with data points used in construction.



The Moho results are organised as simple ascii files with the following format:
identifier | latitude | longitude | Moho depth | weight

The full suite of files (one per geophysical technique) is provided in a .zip file:
H-aitken.xyz - Gravity inversion at 0.5 deg spacing
H-refract.xyz - Refraction results on land
H-marine.xyz - Marine reflection/refraction results
H-reflect.xyz - Reflection profiling results
H-rtomo.xyz - Results from tomographic experiments
H-RecfA.xyz - Receiver functions - broadband inversions
H-RecfB.xyz - Receiver functions - HK results
H-RecfC.xyz - Receiver functions - higher frequency data
H-ACcont.xyz - Autocorrelations - continuous data
H-ACteq.xyz - Autocorrelations - inversion of teleseismic data

Access results

Coming soon: Moho surface models provided at 0.25 deg resolution, format:
latitude | longitude | Moho depth

(a) Spline interpolation
(b) Gaussian weighting

Access Models
The Moho depth is estimated from a combination of geophysical techniques, including but not limited to the analysis of passive seismic data archived at AusPass. The techniques and data sources used to build the AusMoho collection are listed below with relevant references. The collection is the most complete at this date (31 May 2019), and includes estimates that have not yet been integrated in the AUSREM model, released in 2012 (see Salmon et al., 2013 in compilations below). Please, also check recent updates on the AusREM website.

References:
Compilations:
Kennett B.L.N., Salmon M., Saygin E. and AusMoho Working Group, (2011) AusMoho: the variation of Moho depth in Australia. Geophys. J. Int., 187, 946-958.
Salmon, M., Kennett, B.L.N., Stern, T. and Aitken, A.R.A., (2013) The Moho in Australia and New Zealand, Tectonophysics, 609, 288–298; doi:10.1016/j.tecto.2012.07.009
Kennett, B.L.N., Chopping R. and Blewett, R., (2018) The Australian Continent: A Geophysical Synthesis, ANU Press doi:10.22459/AC.08.2018
Gravity Inversion:
Aitken, A.R.A., Salmon, M.L. and Kennett, B.L.N. (2013) Australia's Moho: A test of the usefulness of gravity modelling for the determination of Moho depth, Tectonophysics, 609, 468–479; doi: 10.1016/j.tecto.2012.06.049
Reflection:
Kennett, B.L.N., Saygin, E., Fomin, T. and Blewett, R.S. (2016), Deep Crustal Seismic Reflection Profiling Australia 1978–2015, ANU Press doi:10.22459/dcsrp.11.2016
Historical reflection:
Dooley, J.C. and Moss, F.J., (1988). Deep crustal reflections in Australia 1957-1973 : II. Crustal models, Geophys. J. R. Astr. Soc., 293, 239-249.
Refraction:
Collins, C.D.N., (1988) Seismic velocities in the crust and upper mantle of Australia, Bureau of Mineral Resources, Canberra, Report 277.
Collins, C.D.N., (1991) The nature of the crust-mantle boundary under Australia from seismic evidence, in The Australian Lithosphere, edited by B.J. Drummond, Spec. Publ., Geol. Soc. Aust., 17, 67-80.
Receiver Functions:
Broadband inversions:
Clitheroe, G., Gudmundsson, O. and Kennett, B.L.N., (2009) The crustal thickness of Australia, J. Geophys. Res., 105, 13,697-13,713.
Fontaine, F., Tkalčić, H., and Kennett, B.L.N., (2013) Imaging crustal structure variation across southeastern Australia, Tectonophysics, 582, 112–125; doi: 10.1016/j.tecto.2012.09.031
Fontaine, F., Tkalčić, H. and Kennett, B., (2013) Crustal complexity in the Lachlan Orogen revealed from teleseismic receiver functions, Austral. J. Earth Sci, 60, 413–430; doi:10.180/08120099.2013.787646
Reading, A.M., Kennett, B.L.N. and Dentith, M.C., (2003) The seismic structure of the Yilgarn Craton, Western Australia, Austral. J. Earth Sci., 50, 427-438; doi: 10.1046/j.1440-0952.2003.01000.x
Reading, A.M., and Kennett, B.L.N., (2003) Lithospheric structure of the Pilbara Craton, Capricorn Orogen and northern Yilgarn Craton, Western Australia, from teleseismic receiver functions, Austral. J. Earth Sci., 50, 439-445; doi: 10.1046/j.1440-0952.2003.01003.x
Reading, A.M., Kennett, B.L.N., and Goleby, B., (2007) New constraints on the seismic structure of West Australia: Evidence for terrane stabilization prior to the assembly of an ancient continent?, Geology, 35, 379-379; doi: 10.1130/G23341A.1
Reading, A.M., Tkalčić, H., Kennett, B.L.N., Johnson, S.P., and Sheppard, S., (2012) Seismic structure of the crust and uppermost mantle of the Capricorn and Paterson Orogens and adjacent cratons, Western Australia, from passive seismic experiments. Precambrian Res., 196, 295–308; doi:10.1016/j.precamres.2011.07.001.
Saygin, E., (2007) Seismic Receiver and Noise Correlation Based Studies in Australia>, Ph.D. Thesis, The Australian National University.
Shibutani, T., Sambridge, M., & Kennett, B., (1996) Genetic algorithm inversion for receiver functions with application to crust and uppermost mantle structure beneath eastern Australia, Geophys. Res. Lett., 23, 1829-1829; doi: 10.1029/96gl01671
H-K stacking:
Sippl, C., (2016) Moho geometry along a north-south passive seismic transect through Central Australia. Tectonophysics 676, 56–69.
Yuan H., (2015) Secular change in Archaean crust formation recorded in Western Australia Nature Geoscience 8 (10), 808-813.
Higher frequencies
Tkalčić, H., Rawlinson, N., Arroucau, P., Kumar, A. and Kennett, B.L.N. (2012) Multistep modelling of receiver-based seismic and ambient noise data from WOMBAT array: crustal structure beneath southeast Australia, Geophys. J. Int., 189, 1681-1700; doi: 10.1111/j.1365-246X.2012.05442.x
Sippl, C., Brisbout, L., Spaggiari, C.V., Gessner, K., Tkalčić, H., Kennett, B.L.N. and Murdie, R., (2017) Crustal structure of a Proterozoic craton boundary: East Albany-Fraser Orogen, Western Australia, imaged with passive seismic and gravity anomaly data, Precambrian Res., 296, 78–92; doi:10.1016/j.precamres.2017.04.041
Tomography:
Lambeck, K., Burgess, G. and Shaw, R.D., (1988) Teleseismic travel-time anomalies and deep crustal structure in central Australia, Geophys. J. R. Astr. Soc., 94,105-124
McQueen, H.W.S. and Lambeck, K., (1996) Determination of crustal structure in central Australia by inversion of traveltime residuals, Geophys. J. Int., 126, 645-662.
Rawlinson, N., Tkalčić, H. and Reading, A.M., (2010) Structure of the Tasmanian lithosphere from 3D seismic tomography, Austral. J. Earth Sci., 57, 381-394.
Autocorrelation:
Gorbatov, A., Kennett, B.L.N. and Saygin, E., (2013) Crustal properties from seismic station autocorrelograms, Geophys. J. Int., 192, 861–870; doi:10.1093/gji/ggs064
Kennett, B.L.N., Saygin, E. and Salmon, M., (2015) Stacking autocorrelograms to map Moho depth with high spatial resolution in southeastern Australia, Geophys. Res. Lett., 42, 3839–3846; doi:10.1002/2015GL065345
Kennett, B.L.N., and Sippl, C. (2018) Lithospheric discontinuities in central Australia, Tectonophysics, 744, 10–22; doi: 10.1016/j.tecto.2018.06.008
Qashqai, M.T., Saygin E., and Kennett B.L.N., (2019) Crustal Imaging with Bayesian Inversion of Teleseismic P‐wave Coda Autocorrelation Journal of Geophysical Research: Solid Earth, 124, doi: 10.1029/2018JB017055

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