Stacking autocorrelograms to map Moho depth with high spatial resolution in southeastern Australia
Current estimates of Moho depth in southeastern Australia are based on sparse sampling. The results are augmented with 180 new Moho estimates constructed from spatial stacks of crustal P wave reflectivity derived from autocorrelograms at over 750 stations. The spatial stacks of reflectivity are cons...
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| Veröffentlicht in: | Geophysical research letters 2015-09, Vol.42 (18), p.7490-7497 |
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| creator | Kennett, B. L. N. Saygin, E. Salmon, M. |
| description | Current estimates of Moho depth in southeastern Australia are based on sparse sampling. The results are augmented with 180 new Moho estimates constructed from spatial stacks of crustal P wave reflectivity derived from autocorrelograms at over 750 stations. The spatial stacks of reflectivity are constructed using a Gaussian with half width 0.5°. Picks of the base of crustal reflectivity are made with the aid of the previous Moho model, based on the sparser data, and knowledge of the variation in the character of the crust‐mantle boundary across the region. Good ties can be made to previous results from deep reflection profiling. The new information fills in many holes in coverage and provides a Moho map with closer ties to geological provinces. The procedure exploits the continuous records at the stations and just the vertical components and so can be applied to older data for which receiver function techniques cannot be used.
Key Points
Estimation of crustal reflectivity from 750 single‐station autocorrelograms
Moho extraction from 160 station stacks guided by prior information
Improved Moho surface definition across southeast Australia |
| doi_str_mv | 10.1002/2015GL065345 |
| format | Article |
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Key Points
Estimation of crustal reflectivity from 750 single‐station autocorrelograms
Moho extraction from 160 station stacks guided by prior information
Improved Moho surface definition across southeast Australia</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2015GL065345</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Australia ; Components ; Construction ; Depth ; Depth profiling ; Estimates ; Geological mapping ; Geophysics ; Mantle ; Moho ; Plate tectonics ; Profiling ; Records ; Reflectance ; Reflection ; Reflectivity ; Sampling ; Seismology ; Spatial resolution ; Stacking ; Stacks ; station autocorrelograms ; Stations ; Width</subject><ispartof>Geophysical research letters, 2015-09, Vol.42 (18), p.7490-7497</ispartof><rights>2015. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4994-e7018c873727177c4b243b2318ca3f4d7ae57788995f0f1d6fa0a3820a47abb23</citedby><cites>FETCH-LOGICAL-a4994-e7018c873727177c4b243b2318ca3f4d7ae57788995f0f1d6fa0a3820a47abb23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2015GL065345$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2015GL065345$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids></links><search><creatorcontrib>Kennett, B. L. N.</creatorcontrib><creatorcontrib>Saygin, E.</creatorcontrib><creatorcontrib>Salmon, M.</creatorcontrib><title>Stacking autocorrelograms to map Moho depth with high spatial resolution in southeastern Australia</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Current estimates of Moho depth in southeastern Australia are based on sparse sampling. The results are augmented with 180 new Moho estimates constructed from spatial stacks of crustal P wave reflectivity derived from autocorrelograms at over 750 stations. The spatial stacks of reflectivity are constructed using a Gaussian with half width 0.5°. Picks of the base of crustal reflectivity are made with the aid of the previous Moho model, based on the sparser data, and knowledge of the variation in the character of the crust‐mantle boundary across the region. Good ties can be made to previous results from deep reflection profiling. The new information fills in many holes in coverage and provides a Moho map with closer ties to geological provinces. The procedure exploits the continuous records at the stations and just the vertical components and so can be applied to older data for which receiver function techniques cannot be used.
Key Points
Estimation of crustal reflectivity from 750 single‐station autocorrelograms
Moho extraction from 160 station stacks guided by prior information
Improved Moho surface definition across southeast Australia</description><subject>Australia</subject><subject>Components</subject><subject>Construction</subject><subject>Depth</subject><subject>Depth profiling</subject><subject>Estimates</subject><subject>Geological mapping</subject><subject>Geophysics</subject><subject>Mantle</subject><subject>Moho</subject><subject>Plate tectonics</subject><subject>Profiling</subject><subject>Records</subject><subject>Reflectance</subject><subject>Reflection</subject><subject>Reflectivity</subject><subject>Sampling</subject><subject>Seismology</subject><subject>Spatial resolution</subject><subject>Stacking</subject><subject>Stacks</subject><subject>station autocorrelograms</subject><subject>Stations</subject><subject>Width</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkU9vEzEQxS0EEqHlxgewxIUDgfF_77GqICBCWxVQj9Zk48263awX26vSb4-rIIQ4tBePNfq90Zt5hLxi8I4B8PccmFqtQSsh1ROyYI2USwtgnpIFQFP_3Ojn5EXO1wAgQLAF2Xwr2N6EcUdxLrGNKfkh7hLuMy2R7nGiX2Mf6dZPpae3oT592PU0T1gCDjT5HIe5hDjSMNIc59J7zMWnkZ7MuSQcAh6TZx0O2b_8U4_Ij48fvp9-Wq7PV59PT9ZLlE015w0w21ojDDfMmFZuuBQbLmoTRSe3Br0yxtqmUR10bKs7BBSWA0qDmwoekTeHuVOKP2efi9uH3PphwNHHOTtmwQrdWK4eR43mjCuQUNHX_6HXcU5jXcSxhkH1qzh7kDKca2Y1u3f49kC1KeacfOemFPaY7hwDd5-g-zfBivMDfhsGf_cg61aXayWEllW0PIhCjeHXXxGmG6frbZW7Olu5C6au5OVF476I34fGqZM</recordid><startdate>20150928</startdate><enddate>20150928</enddate><creator>Kennett, B. L. N.</creator><creator>Saygin, E.</creator><creator>Salmon, M.</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7UA</scope><scope>C1K</scope></search><sort><creationdate>20150928</creationdate><title>Stacking autocorrelograms to map Moho depth with high spatial resolution in southeastern Australia</title><author>Kennett, B. L. N. ; Saygin, E. ; Salmon, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4994-e7018c873727177c4b243b2318ca3f4d7ae57788995f0f1d6fa0a3820a47abb23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Australia</topic><topic>Components</topic><topic>Construction</topic><topic>Depth</topic><topic>Depth profiling</topic><topic>Estimates</topic><topic>Geological mapping</topic><topic>Geophysics</topic><topic>Mantle</topic><topic>Moho</topic><topic>Plate tectonics</topic><topic>Profiling</topic><topic>Records</topic><topic>Reflectance</topic><topic>Reflection</topic><topic>Reflectivity</topic><topic>Sampling</topic><topic>Seismology</topic><topic>Spatial resolution</topic><topic>Stacking</topic><topic>Stacks</topic><topic>station autocorrelograms</topic><topic>Stations</topic><topic>Width</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kennett, B. L. N.</creatorcontrib><creatorcontrib>Saygin, E.</creatorcontrib><creatorcontrib>Salmon, M.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kennett, B. L. N.</au><au>Saygin, E.</au><au>Salmon, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stacking autocorrelograms to map Moho depth with high spatial resolution in southeastern Australia</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2015-09-28</date><risdate>2015</risdate><volume>42</volume><issue>18</issue><spage>7490</spage><epage>7497</epage><pages>7490-7497</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Current estimates of Moho depth in southeastern Australia are based on sparse sampling. The results are augmented with 180 new Moho estimates constructed from spatial stacks of crustal P wave reflectivity derived from autocorrelograms at over 750 stations. The spatial stacks of reflectivity are constructed using a Gaussian with half width 0.5°. Picks of the base of crustal reflectivity are made with the aid of the previous Moho model, based on the sparser data, and knowledge of the variation in the character of the crust‐mantle boundary across the region. Good ties can be made to previous results from deep reflection profiling. The new information fills in many holes in coverage and provides a Moho map with closer ties to geological provinces. The procedure exploits the continuous records at the stations and just the vertical components and so can be applied to older data for which receiver function techniques cannot be used.
Key Points
Estimation of crustal reflectivity from 750 single‐station autocorrelograms
Moho extraction from 160 station stacks guided by prior information
Improved Moho surface definition across southeast Australia</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2015GL065345</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Australia Components Construction Depth Depth profiling Estimates Geological mapping Geophysics Mantle Moho Plate tectonics Profiling Records Reflectance Reflection Reflectivity Sampling Seismology Spatial resolution Stacking Stacks station autocorrelograms Stations Width |
| title | Stacking autocorrelograms to map Moho depth with high spatial resolution in southeastern Australia |
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