Frictional properties of fault zone gouges from the J-FAST drilling project (Mw 9.0 2011 Tohoku-Oki earthquake)
Smectite‐rich fault gouges recovered during Integrated Ocean Drilling Program Expedition 343 (Japan Trench Fast Drilling Project (J‐FAST)) from the plate boundary slip zone of the 2011 Mw 9.0 Tohoku‐Oki earthquake were deformed at slip velocities of 10 µm s−1 to 3.5 m s−1 and normal stresses up to 1...
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| Veröffentlicht in: | Geophysical research letters 2015-04, Vol.42 (8), p.2691-2699 |
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| creator | Remitti, F. Smith, S. A. F. Mittempergher, S. Gualtieri, A. F. Di Toro, G. |
| description | Smectite‐rich fault gouges recovered during Integrated Ocean Drilling Program Expedition 343 (Japan Trench Fast Drilling Project (J‐FAST)) from the plate boundary slip zone of the 2011 Mw 9.0 Tohoku‐Oki earthquake were deformed at slip velocities of 10 µm s−1 to 3.5 m s−1 and normal stresses up to 12 MPa. Water‐dampened gouges (1) are weaker (apparent friction coefficient, μ* 0.1 m s−1). A significant amount of amorphous material formed in room‐humidity experiments at low‐ and high‐slip velocities, likely by comminution and disordering of smectite. Our results indicate that the frictional properties of water‐dampened gouges could have facilitated propagation of the Tohoku‐oki rupture to the trench and large coseismic slip at shallow depths.
Key Points
Strengthening at intermediate velocities in room‐humidity Tohoku‐oki gouge
Lack of strengthening in water‐dampened gouges facilitated rupture to the trench
Amorphization of clays in room‐humidity gouge at all tested slip velocities |
| doi_str_mv | 10.1002/2015GL063507 |
| format | Article |
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Key Points
Strengthening at intermediate velocities in room‐humidity Tohoku‐oki gouge
Lack of strengthening in water‐dampened gouges facilitated rupture to the trench
Amorphization of clays in room‐humidity gouge at all tested slip velocities</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2015GL063507</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>amorphous ; Amorphous materials ; Comminution ; Deformation ; Drilling ; Earthquakes ; Expeditions ; Fault zones ; Friction ; Geophysics ; Humidity ; J-FAST project ; Plate boundaries ; Plate tectonics ; Propagation ; Properties ; Rupture ; Rupturing ; Seismic activity ; Seismology ; Slip ; smectite-rich gouge ; Smectites ; Stresses ; subduction zones ; Tohoku-Oki earthquake ; Velocity</subject><ispartof>Geophysical research letters, 2015-04, Vol.42 (8), p.2691-2699</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-c5468-1a6b0cb4ef2087823647bcee126c26ac6c4526ae68fad11863e6e111835687273</citedby><cites>FETCH-LOGICAL-c5468-1a6b0cb4ef2087823647bcee126c26ac6c4526ae68fad11863e6e111835687273</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%2F2015GL063507$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2015GL063507$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,1428,11495,27905,27906,45555,45556,46390,46449,46814,46873</link.rule.ids></links><search><creatorcontrib>Remitti, F.</creatorcontrib><creatorcontrib>Smith, S. A. F.</creatorcontrib><creatorcontrib>Mittempergher, S.</creatorcontrib><creatorcontrib>Gualtieri, A. F.</creatorcontrib><creatorcontrib>Di Toro, G.</creatorcontrib><title>Frictional properties of fault zone gouges from the J-FAST drilling project (Mw 9.0 2011 Tohoku-Oki earthquake)</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Smectite‐rich fault gouges recovered during Integrated Ocean Drilling Program Expedition 343 (Japan Trench Fast Drilling Project (J‐FAST)) from the plate boundary slip zone of the 2011 Mw 9.0 Tohoku‐Oki earthquake were deformed at slip velocities of 10 µm s−1 to 3.5 m s−1 and normal stresses up to 12 MPa. Water‐dampened gouges (1) are weaker (apparent friction coefficient, μ* <0.1) than room‐humidity gouges (apparent friction coefficient, μ* ~0.1–0.35) at all slip velocities, (2) are velocity insensitive to velocity weakening at all slip velocities, unlike room‐humidity gouges that are velocity strengthening at intermediate velocities (V = 0.001–0.1 m s−1), and (3) have negligible peak μ* at high slip velocities (V > 0.1 m s−1). A significant amount of amorphous material formed in room‐humidity experiments at low‐ and high‐slip velocities, likely by comminution and disordering of smectite. Our results indicate that the frictional properties of water‐dampened gouges could have facilitated propagation of the Tohoku‐oki rupture to the trench and large coseismic slip at shallow depths.
Key Points
Strengthening at intermediate velocities in room‐humidity Tohoku‐oki gouge
Lack of strengthening in water‐dampened gouges facilitated rupture to the trench
Amorphization of clays in room‐humidity gouge at all tested slip velocities</description><subject>amorphous</subject><subject>Amorphous materials</subject><subject>Comminution</subject><subject>Deformation</subject><subject>Drilling</subject><subject>Earthquakes</subject><subject>Expeditions</subject><subject>Fault zones</subject><subject>Friction</subject><subject>Geophysics</subject><subject>Humidity</subject><subject>J-FAST project</subject><subject>Plate boundaries</subject><subject>Plate tectonics</subject><subject>Propagation</subject><subject>Properties</subject><subject>Rupture</subject><subject>Rupturing</subject><subject>Seismic activity</subject><subject>Seismology</subject><subject>Slip</subject><subject>smectite-rich gouge</subject><subject>Smectites</subject><subject>Stresses</subject><subject>subduction zones</subject><subject>Tohoku-Oki earthquake</subject><subject>Velocity</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kE9vEzEQxS0EEiHlxgewxAUktp2xd23vsWpJ2ipQ_gRxtJztbOJkG6f2rkr76esoCHHqZd5o9HujN8PYO4RjBBAnArCazkDJCvQLNsK6LAsDoF-yEUCde6HVa_YmpTUASJA4YmESfdP7sHUd38Wwo9h7Sjy0vHVD1_PHsCW-DMMyD9sYbnm_In5VTE5_zvlN9F3nt8u9cU1Nzz98uef1MfCcA_k8rMJmKK43npOL_epucBv6eMReta5L9Pavjtmvyef52UUxu55enp3OiqYqlSnQqQU0i5JaAUYbIVWpFw0RCtUI5RrVlFVWUqZ1N4hGSVKEuZGVMlpoOWbvD3tztruBUm_XYYj5ymSxRjAKdYXPUsogiH3N1KcD1cSQUqTW7qK_dfHBItj94-3_j8-4OOD3vqOHZ1k7_TGrhMmxx6w4mHzq6c8_k4sbq7TUlf39dWrPv4v5NyyvbC2fAExfj0U</recordid><startdate>20150428</startdate><enddate>20150428</enddate><creator>Remitti, F.</creator><creator>Smith, S. A. F.</creator><creator>Mittempergher, S.</creator><creator>Gualtieri, A. F.</creator><creator>Di Toro, G.</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></search><sort><creationdate>20150428</creationdate><title>Frictional properties of fault zone gouges from the J-FAST drilling project (Mw 9.0 2011 Tohoku-Oki earthquake)</title><author>Remitti, F. ; Smith, S. A. F. ; Mittempergher, S. ; Gualtieri, A. F. ; Di Toro, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5468-1a6b0cb4ef2087823647bcee126c26ac6c4526ae68fad11863e6e111835687273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>amorphous</topic><topic>Amorphous materials</topic><topic>Comminution</topic><topic>Deformation</topic><topic>Drilling</topic><topic>Earthquakes</topic><topic>Expeditions</topic><topic>Fault zones</topic><topic>Friction</topic><topic>Geophysics</topic><topic>Humidity</topic><topic>J-FAST project</topic><topic>Plate boundaries</topic><topic>Plate tectonics</topic><topic>Propagation</topic><topic>Properties</topic><topic>Rupture</topic><topic>Rupturing</topic><topic>Seismic activity</topic><topic>Seismology</topic><topic>Slip</topic><topic>smectite-rich gouge</topic><topic>Smectites</topic><topic>Stresses</topic><topic>subduction zones</topic><topic>Tohoku-Oki earthquake</topic><topic>Velocity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Remitti, F.</creatorcontrib><creatorcontrib>Smith, S. A. F.</creatorcontrib><creatorcontrib>Mittempergher, S.</creatorcontrib><creatorcontrib>Gualtieri, A. F.</creatorcontrib><creatorcontrib>Di Toro, G.</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><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Remitti, F.</au><au>Smith, S. A. F.</au><au>Mittempergher, S.</au><au>Gualtieri, A. F.</au><au>Di Toro, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Frictional properties of fault zone gouges from the J-FAST drilling project (Mw 9.0 2011 Tohoku-Oki earthquake)</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2015-04-28</date><risdate>2015</risdate><volume>42</volume><issue>8</issue><spage>2691</spage><epage>2699</epage><pages>2691-2699</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Smectite‐rich fault gouges recovered during Integrated Ocean Drilling Program Expedition 343 (Japan Trench Fast Drilling Project (J‐FAST)) from the plate boundary slip zone of the 2011 Mw 9.0 Tohoku‐Oki earthquake were deformed at slip velocities of 10 µm s−1 to 3.5 m s−1 and normal stresses up to 12 MPa. Water‐dampened gouges (1) are weaker (apparent friction coefficient, μ* <0.1) than room‐humidity gouges (apparent friction coefficient, μ* ~0.1–0.35) at all slip velocities, (2) are velocity insensitive to velocity weakening at all slip velocities, unlike room‐humidity gouges that are velocity strengthening at intermediate velocities (V = 0.001–0.1 m s−1), and (3) have negligible peak μ* at high slip velocities (V > 0.1 m s−1). A significant amount of amorphous material formed in room‐humidity experiments at low‐ and high‐slip velocities, likely by comminution and disordering of smectite. Our results indicate that the frictional properties of water‐dampened gouges could have facilitated propagation of the Tohoku‐oki rupture to the trench and large coseismic slip at shallow depths.
Key Points
Strengthening at intermediate velocities in room‐humidity Tohoku‐oki gouge
Lack of strengthening in water‐dampened gouges facilitated rupture to the trench
Amorphization of clays in room‐humidity gouge at all tested slip velocities</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2015GL063507</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Geophysical research letters, 2015-04, Vol.42 (8), p.2691-2699 |
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| subjects | amorphous Amorphous materials Comminution Deformation Drilling Earthquakes Expeditions Fault zones Friction Geophysics Humidity J-FAST project Plate boundaries Plate tectonics Propagation Properties Rupture Rupturing Seismic activity Seismology Slip smectite-rich gouge Smectites Stresses subduction zones Tohoku-Oki earthquake Velocity |
| title | Frictional properties of fault zone gouges from the J-FAST drilling project (Mw 9.0 2011 Tohoku-Oki earthquake) |
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