FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2085698343> ?p ?o ?g. }

• W2085698343 abstract "Boreholes and high‐resolution seismic reflection data collected across the forelimb growth triangle above the central segment of the Puente Hills thrust fault (PHT) beneath Los Angeles, California, provide a detailed record of incremental fold growth during large earthquakes on this major blind thrust fault. These data document fold growth within a discrete kink band that narrows upward from ∼460 m at the base of the Quaternary section (200–250 m depth) to <150 m at 2.5 m depth, with most growth during the most recent folding event occurring within a zone only ∼60 m wide. These observations, coupled with evidence from petroleum industry seismic reflection data, demonstrate that most (>82% at 250 m depth) folding and uplift occur within discrete kink bands, thereby enabling us to develop a paleoseismic history of the underlying blind thrust fault. The borehole data reveal that the youngest part of the growth triangle in the uppermost 20 m comprises three stratigraphically discrete growth intervals marked by southward thickening sedimentary strata that are separated by intervals in which sediments do not change thickness across the site. We interpret the intervals of growth as occurring after the formation of now‐buried paleofold scarps during three large PHT earthquakes in the past 8 kyr. The intervening intervals of no growth record periods of structural quiescence and deposition at the regional, near‐horizontal stream gradient at the study site. Minimum uplift in each of the scarp‐forming events, which occurred at 0.2–2.2 ka (event Y), 3.0–6.3 ka (event X), and 6.6–8.1 ka (event W), ranged from ∼1.1 to ∼1.6 m, indicating minimum thrust displacements of ≥2.5 to 4.5 m. Such large displacements are consistent with the occurrence of large‐magnitude earthquakes ( M w > 7). Cumulative, minimum uplift in the past three events was 3.3 to 4.7 m, suggesting cumulative thrust displacement of ≥7 to 10.5 m. These values yield a minimum Holocene slip rate for the PHT of ≥0.9 to 1.6 mm/yr. The borehole and seismic reflection data demonstrate that dip within the kink band is acquired incrementally, such that older strata that have been deformed by more earthquakes dip more steeply than younger strata. Specifically, strata dip 0.4° at 4 m depth, 0.7° at 20 m depth, 8° at 90 m, 16° at 110 m, and 17° at 200 m. Moreover, structural restorations of the borehole data show that the locus of active folding (the anticlinal active axial surface) does not extend to the surface in exactly the same location from earthquake to earthquake. Rather, that the axial surfaces migrate from earthquake to earthquake, reflecting a component of fold growth by kink band migration. The incremental acquisition of bed dip in the growth triangle may reflect some combination of fold growth by limb rotation in addition to kink band migration, possibly through a component of trishear or shear fault bend folding. Alternatively, the component of limb rotation may result from curved hinge fault bend folding, and/or the mechanical response of loosely consolidated granular sediments in the shallow subsurface to folding at depth." @default.
• W2085698343 created "2016-06-24" @default.
• W2085698343 creator A5002364329 @default.
• W2085698343 creator A5018130887 @default.
• W2085698343 creator A5049277003 @default.
• W2085698343 creator A5050971944 @default.
• W2085698343 creator A5077554181 @default.
• W2085698343 date "2007-03-01" @default.
• W2085698343 modified "2023-10-17" @default.
• W2085698343 title "Earthquake-by-earthquake fold growth above the Puente Hills blind thrust fault, Los Angeles, California: Implications for fold kinematics and seismic hazard" @default.
• W2085698343 cites W1521989435 @default.
• W2085698343 cites W1575688672 @default.
• W2085698343 cites W1583343496 @default.
• W2085698343 cites W1973206784 @default.
• W2085698343 cites W1980698240 @default.
• W2085698343 cites W2004399909 @default.
• W2085698343 cites W2009528647 @default.
• W2085698343 cites W2014810230 @default.
• W2085698343 cites W2016091555 @default.
• W2085698343 cites W2029551359 @default.
• W2085698343 cites W2036798760 @default.
• W2085698343 cites W2057490251 @default.
• W2085698343 cites W2062250596 @default.
• W2085698343 cites W2082474266 @default.
• W2085698343 cites W2094603286 @default.
• W2085698343 cites W2095685916 @default.
• W2085698343 cites W2103399543 @default.
• W2085698343 cites W2112825244 @default.
• W2085698343 cites W2123985357 @default.
• W2085698343 cites W2132926881 @default.
• W2085698343 cites W2148135691 @default.
• W2085698343 cites W2152107334 @default.
• W2085698343 cites W2154276443 @default.
• W2085698343 cites W2168693115 @default.
• W2085698343 cites W2281178115 @default.
• W2085698343 cites W2331716385 @default.
• W2085698343 cites W2480371910 @default.
• W2085698343 doi "https://doi.org/10.1029/2006jb004461" @default.
• W2085698343 hasPublicationYear "2007" @default.
• W2085698343 type Work @default.
• W2085698343 sameAs 2085698343 @default.
• W2085698343 citedByCount "21" @default.
• W2085698343 countsByYear W20856983432014 @default.
• W2085698343 countsByYear W20856983432015 @default.
• W2085698343 countsByYear W20856983432017 @default.
• W2085698343 countsByYear W20856983432018 @default.
• W2085698343 countsByYear W20856983432019 @default.
• W2085698343 countsByYear W20856983432020 @default.
• W2085698343 crossrefType "journal-article" @default.
• W2085698343 hasAuthorship W2085698343A5002364329 @default.
• W2085698343 hasAuthorship W2085698343A5018130887 @default.
• W2085698343 hasAuthorship W2085698343A5049277003 @default.
• W2085698343 hasAuthorship W2085698343A5050971944 @default.
• W2085698343 hasAuthorship W2085698343A5077554181 @default.
• W2085698343 hasBestOaLocation W20856983431 @default.
• W2085698343 hasConcept C110041135 @default.
• W2085698343 hasConcept C114679195 @default.
• W2085698343 hasConcept C127313418 @default.
• W2085698343 hasConcept C127413603 @default.
• W2085698343 hasConcept C150560799 @default.
• W2085698343 hasConcept C1507633 @default.
• W2085698343 hasConcept C151730666 @default.
• W2085698343 hasConcept C165205528 @default.
• W2085698343 hasConcept C175551986 @default.
• W2085698343 hasConcept C193748577 @default.
• W2085698343 hasConcept C52678131 @default.
• W2085698343 hasConcept C53942344 @default.
• W2085698343 hasConcept C69361100 @default.
• W2085698343 hasConcept C77928131 @default.
• W2085698343 hasConcept C78519656 @default.
• W2085698343 hasConcept C84786313 @default.
• W2085698343 hasConceptScore W2085698343C110041135 @default.
• W2085698343 hasConceptScore W2085698343C114679195 @default.
• W2085698343 hasConceptScore W2085698343C127313418 @default.
• W2085698343 hasConceptScore W2085698343C127413603 @default.
• W2085698343 hasConceptScore W2085698343C150560799 @default.
• W2085698343 hasConceptScore W2085698343C1507633 @default.
• W2085698343 hasConceptScore W2085698343C151730666 @default.
• W2085698343 hasConceptScore W2085698343C165205528 @default.
• W2085698343 hasConceptScore W2085698343C175551986 @default.
• W2085698343 hasConceptScore W2085698343C193748577 @default.
• W2085698343 hasConceptScore W2085698343C52678131 @default.
• W2085698343 hasConceptScore W2085698343C53942344 @default.
• W2085698343 hasConceptScore W2085698343C69361100 @default.
• W2085698343 hasConceptScore W2085698343C77928131 @default.
• W2085698343 hasConceptScore W2085698343C78519656 @default.
• W2085698343 hasConceptScore W2085698343C84786313 @default.
• W2085698343 hasIssue "B3" @default.
• W2085698343 hasLocation W20856983431 @default.
• W2085698343 hasOpenAccess W2085698343 @default.
• W2085698343 hasPrimaryLocation W20856983431 @default.
• W2085698343 hasRelatedWork W1767087 @default.
• W2085698343 hasRelatedWork W2017556522 @default.
• W2085698343 hasRelatedWork W2065102030 @default.
• W2085698343 hasRelatedWork W2072233428 @default.
• W2085698343 hasRelatedWork W2122498972 @default.
• W2085698343 hasRelatedWork W2546785568 @default.
• W2085698343 hasRelatedWork W2796134664 @default.
• W2085698343 hasRelatedWork W3121354664 @default.
• W2085698343 hasRelatedWork W3159712395 @default.

• next