Matches in SemOpenAlex for { <https://semopenalex.org/work/W2126148229> ?p ?o ?g. }
- W2126148229 endingPage "408" @default.
- W2126148229 startingPage "393" @default.
- W2126148229 abstract "The recognition and dating of corals that have been killed by tectonic uplift allow us to date paleoseismic uplifts in the Vanuatu island arc. We recognize corals that record paleouplifts by their similarity to those known to have died during contemporary sudden uplifts and date them (1) by counting annual coral growth bands (only if part of the coral is alive at the time of collection) or (2) by newly developed techniques for obtaining 230 Th ages by mass spectrometry. The mass spectrometric method produces isotopic ages with precisions of ±3 to ±9 years (2σ) in the 0–1000 years B.P. time range. The 230 Th ages in this time range appear to be accurate. Samples whose ages are known by counting coral growth bands give 230 Th ages that are indistinguishable from their growth band ages. By dividing the average increment of uplift for the latest Holocene uplifts by the mean Holocene uplift rate, we can estimate average seismic uplift recurrence intervals for the past 6000 years. The results for each of four central Vanuatu arc segments are (1) North Santo emerged 1.2 m in 1866 A.D. and 0.6 m 107 years later in 1973 A.D. The average coseismic uplift of 0.9 m and mean Holocene uplift rate of 4.3 mm yr −1 suggest a longer recurrence interval of 212 years. (2) South Santo emerged 0.29 m in 1946 and 0.26 m 19 years later in 1965, including the related 1971 event. Here the mean Holocene uplift rate is 5.5 mm yr −1 . The uplift data suggest a longer average recurrence interval of about 51 years. (3) North Malekula emerged 1.23 m near 1729 A. D. and 1.05 m 236 years later in 1965. The mean Holocene uplift rate of 2.7 mm yr −1 and mean coseismic uplift of 1.14 m for dated events suggest a longer recurrence interval of 422 years. (4) Part of southernmost Malekula has uplifted continuously or episodically by about 0.35 m from about 1957 until at least mid‐1983 A.D. The maximum uplift of 2.7 mm yr −1 occurs near a nest of small earthquakes. Both the earthquakes and rapid uplift suggest that interplate slip beneath south Malekula may be continuous, rather than episodic. Episodes of 0.35 m uplift would have to recur every 130 years to maintain the 2.7 mm yr −1 uplift rate. In contrast, we find no evidence of interseismic vertical movements for the other three blocks. The most reasonable interpretation of these results is that the seismic recurrence intervals and processes for accommodation of slip are quite different on adjacent arc segments. We have used the most widely accepted momentmagnitude relationship to evaluate the accumulated seismic slip caused by large earthquakes occurring since 1920. In all four arc segments this analysis suggests that the seismically radiated moments account for less than one‐third to one‐tenth of the slip associated with plate convergence. The similarity between the paleoseismic record of uplifts and the contemporary record of coseismic uplifts suggests that this analysis can be generalized to times before 1920. For the northern three segments of central Vanuatu, aseismic slip probably occurs in the same years as large earthquakes because the contemporary coral record records uplifts only in years having large historic earthquakes. This suggests that aseismic slip is not continuous and does not occur at rates which vary slowly over the course of the earthquake cycle. The south Santo segment may have the highest proportion of seismic slip because the mean recurrence interval of 51 years is shortest and the mean Holocene uplift rate of at least 5.5 mm yr −1 is the fastest." @default.
- W2126148229 created "2016-06-24" @default.
- W2126148229 creator A5010495892 @default.
- W2126148229 creator A5017705801 @default.
- W2126148229 creator A5049628764 @default.
- W2126148229 creator A5087692200 @default.
- W2126148229 date "1990-01-10" @default.
- W2126148229 modified "2023-10-03" @default.
- W2126148229 title "Seismic recurrence intervals and timing of aseismic subduction inferred from emerged corals and reefs of the Central Vanuatu (New Hebrides) Frontal Arc" @default.
- W2126148229 cites W1484671763 @default.
- W2126148229 cites W1505594408 @default.
- W2126148229 cites W1511524149 @default.
- W2126148229 cites W1558136678 @default.
- W2126148229 cites W1607954114 @default.
- W2126148229 cites W1965858395 @default.
- W2126148229 cites W1967421622 @default.
- W2126148229 cites W1969975108 @default.
- W2126148229 cites W1975338333 @default.
- W2126148229 cites W1983726496 @default.
- W2126148229 cites W1986975070 @default.
- W2126148229 cites W1989199732 @default.
- W2126148229 cites W1994518237 @default.
- W2126148229 cites W2008670387 @default.
- W2126148229 cites W2009930154 @default.
- W2126148229 cites W2011079307 @default.
- W2126148229 cites W2011791541 @default.
- W2126148229 cites W2013823208 @default.
- W2126148229 cites W2031628308 @default.
- W2126148229 cites W2032764136 @default.
- W2126148229 cites W2033787630 @default.
- W2126148229 cites W2046419600 @default.
- W2126148229 cites W2053993445 @default.
- W2126148229 cites W2068596279 @default.
- W2126148229 cites W2090983807 @default.
- W2126148229 cites W2094168809 @default.
- W2126148229 cites W2094666610 @default.
- W2126148229 cites W2098746674 @default.
- W2126148229 cites W2104675045 @default.
- W2126148229 cites W2105658614 @default.
- W2126148229 cites W2111986227 @default.
- W2126148229 cites W2121948627 @default.
- W2126148229 cites W2142250683 @default.
- W2126148229 cites W2151485804 @default.
- W2126148229 cites W2161437541 @default.
- W2126148229 cites W2164043671 @default.
- W2126148229 cites W2168659721 @default.
- W2126148229 cites W2169009013 @default.
- W2126148229 cites W2170969682 @default.
- W2126148229 cites W2171380236 @default.
- W2126148229 cites W2196973530 @default.
- W2126148229 cites W2263750011 @default.
- W2126148229 cites W2314234004 @default.
- W2126148229 cites W2325034782 @default.
- W2126148229 cites W2486057850 @default.
- W2126148229 cites W2503681390 @default.
- W2126148229 doi "https://doi.org/10.1029/jb095ib01p00393" @default.
- W2126148229 hasPublicationYear "1990" @default.
- W2126148229 type Work @default.
- W2126148229 sameAs 2126148229 @default.
- W2126148229 citedByCount "64" @default.
- W2126148229 countsByYear W21261482292012 @default.
- W2126148229 countsByYear W21261482292015 @default.
- W2126148229 countsByYear W21261482292018 @default.
- W2126148229 countsByYear W21261482292019 @default.
- W2126148229 countsByYear W21261482292020 @default.
- W2126148229 countsByYear W21261482292021 @default.
- W2126148229 countsByYear W21261482292022 @default.
- W2126148229 crossrefType "journal-article" @default.
- W2126148229 hasAuthorship W2126148229A5010495892 @default.
- W2126148229 hasAuthorship W2126148229A5017705801 @default.
- W2126148229 hasAuthorship W2126148229A5049628764 @default.
- W2126148229 hasAuthorship W2126148229A5087692200 @default.
- W2126148229 hasBestOaLocation W21261482292 @default.
- W2126148229 hasConcept C111368507 @default.
- W2126148229 hasConcept C127313418 @default.
- W2126148229 hasConcept C139419234 @default.
- W2126148229 hasConcept C140345934 @default.
- W2126148229 hasConcept C143020374 @default.
- W2126148229 hasConcept C151730666 @default.
- W2126148229 hasConcept C159985019 @default.
- W2126148229 hasConcept C160464908 @default.
- W2126148229 hasConcept C165205528 @default.
- W2126148229 hasConcept C170187044 @default.
- W2126148229 hasConcept C192562407 @default.
- W2126148229 hasConcept C204323151 @default.
- W2126148229 hasConcept C58097730 @default.
- W2126148229 hasConcept C77044568 @default.
- W2126148229 hasConcept C77928131 @default.
- W2126148229 hasConcept C79367842 @default.
- W2126148229 hasConceptScore W2126148229C111368507 @default.
- W2126148229 hasConceptScore W2126148229C127313418 @default.
- W2126148229 hasConceptScore W2126148229C139419234 @default.
- W2126148229 hasConceptScore W2126148229C140345934 @default.
- W2126148229 hasConceptScore W2126148229C143020374 @default.
- W2126148229 hasConceptScore W2126148229C151730666 @default.
- W2126148229 hasConceptScore W2126148229C159985019 @default.
- W2126148229 hasConceptScore W2126148229C160464908 @default.
- W2126148229 hasConceptScore W2126148229C165205528 @default.