FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1567608917> ?p ?o ?g. }

• W1567608917 abstract "Volcanic rocks, mostly basalts and some andesites, are interbedded with middle Miocene strata and are overlain by younger rocks throughout the greater part of the Los Angeles Basin, California. Roughly correlative flows, previously dated radiometrically (or paleontologically) at about 16.4 to 10.7 Ma, crop out in five separate regions around the basin perimeter. Los Angeles Basin volcanic rocks have special meaning because they offer clues to tectonomagmatic events associated with onset of clockwise transrotation of the western Transverse Ranges region and to the timing and locus of the initial basin opening. Whole-rock 40Ar/39Ar dating of near-tholeiitic olivine basalts of the Topanga Formation (Hoots, 1931) from three sites in the easternmost Santa Monica Mountains, combined with 87Sr/86Sr dating of fossil carbonates from interstratified marine beds at nine sites, establish a new age of 17.4 Ma for these oldest known Topanga-age volcanics of the Los Angeles Basin. We also record three new 40Ar/39Ar ages (15.3 Ma) from andesitic flows of the lower Glendora Volcanics at the northeast edge of the basin, 70 km east of the Santa Monica Mountains. A whole-rock determination of 17.2±0.5 Ma for nearby altered olivine basalt in the unfossiliferous Glendora volcanic sequence is questionable because of a complex 40Ar/39Ar age spectrum suggestive of 39Ar recoil, but it may indicate an older volcanic unit in this eastern area. We hypothesize that the 17.4-Ma volcanics in the eastern Santa Monica Mountains are an early expression of deep crustal magmatism accompanying the earliest extensional tectonism associated with rifting. The extremely thick younger volcanic pile in the western and central parts of the range may suggest that this early igneous activity in the eastern area was premonitory. Paleomagnetic declination data are needed to determine the pre-transrotational orientation of the eastern Santa Monica Mountains volcanic sequence. The new age determinations do not yield unequivocal support for either of two proposed explanations of possible age trends of Miocene volcanic rocks in southern California but underscore the need for further work." @default.
• W1567608917 created "2016-06-24" @default.
• W1567608917 creator A5005406457 @default.
• W1567608917 creator A5013389526 @default.
• W1567608917 creator A5020008503 @default.
• W1567608917 creator A5043080366 @default.
• W1567608917 creator A5057484715 @default.
• W1567608917 date "2002-01-01" @default.
• W1567608917 modified "2023-09-27" @default.
• W1567608917 title "Age and tectonic significance of volcanic rocks in the northern Los Angeles Basin, California" @default.
• W1567608917 cites W128015011 @default.
• W1567608917 cites W128610911 @default.
• W1567608917 cites W143607445 @default.
• W1567608917 cites W1485193891 @default.
• W1567608917 cites W1496858757 @default.
• W1567608917 cites W1521604534 @default.
• W1567608917 cites W1562212695 @default.
• W1567608917 cites W1608824372 @default.
• W1567608917 cites W1966072750 @default.
• W1567608917 cites W1977709690 @default.
• W1567608917 cites W1983942692 @default.
• W1567608917 cites W1985751998 @default.
• W1567608917 cites W1988662646 @default.
• W1567608917 cites W1988747300 @default.
• W1567608917 cites W1992612345 @default.
• W1567608917 cites W2009410385 @default.
• W1567608917 cites W2009711214 @default.
• W1567608917 cites W2022223654 @default.
• W1567608917 cites W2029613078 @default.
• W1567608917 cites W2031480822 @default.
• W1567608917 cites W2036522431 @default.
• W1567608917 cites W2040880135 @default.
• W1567608917 cites W2046618835 @default.
• W1567608917 cites W2050985695 @default.
• W1567608917 cites W2052132130 @default.
• W1567608917 cites W2083834813 @default.
• W1567608917 cites W2085402990 @default.
• W1567608917 cites W2094679907 @default.
• W1567608917 cites W2109053058 @default.
• W1567608917 cites W2122012031 @default.
• W1567608917 cites W2135049836 @default.
• W1567608917 cites W2145604970 @default.
• W1567608917 cites W2145829156 @default.
• W1567608917 cites W2154624126 @default.
• W1567608917 cites W2156068745 @default.
• W1567608917 cites W2161449422 @default.
• W1567608917 cites W2205531158 @default.
• W1567608917 cites W2249554844 @default.
• W1567608917 cites W2267205500 @default.
• W1567608917 cites W2267473757 @default.
• W1567608917 cites W2270489138 @default.
• W1567608917 cites W2301717707 @default.
• W1567608917 cites W2618691356 @default.
• W1567608917 cites W3121560237 @default.
• W1567608917 cites W2188381602 @default.
• W1567608917 doi "https://doi.org/10.3133/pp1669" @default.
• W1567608917 hasPublicationYear "2002" @default.
• W1567608917 type Work @default.
• W1567608917 sameAs 1567608917 @default.
• W1567608917 citedByCount "7" @default.
• W1567608917 countsByYear W15676089172014 @default.
• W1567608917 crossrefType "journal-article" @default.
• W1567608917 hasAuthorship W1567608917A5005406457 @default.
• W1567608917 hasAuthorship W1567608917A5013389526 @default.
• W1567608917 hasAuthorship W1567608917A5020008503 @default.
• W1567608917 hasAuthorship W1567608917A5043080366 @default.
• W1567608917 hasAuthorship W1567608917A5057484715 @default.
• W1567608917 hasBestOaLocation W15676089171 @default.
• W1567608917 hasConcept C109007969 @default.
• W1567608917 hasConcept C120806208 @default.
• W1567608917 hasConcept C127313418 @default.
• W1567608917 hasConcept C151730666 @default.
• W1567608917 hasConcept C161509811 @default.
• W1567608917 hasConcept C162973429 @default.
• W1567608917 hasConcept C17409809 @default.
• W1567608917 hasConcept C192241223 @default.
• W1567608917 hasConcept C2778703903 @default.
• W1567608917 hasConcept C2779321686 @default.
• W1567608917 hasConcept C36986328 @default.
• W1567608917 hasConcept C77928131 @default.
• W1567608917 hasConceptScore W1567608917C109007969 @default.
• W1567608917 hasConceptScore W1567608917C120806208 @default.
• W1567608917 hasConceptScore W1567608917C127313418 @default.
• W1567608917 hasConceptScore W1567608917C151730666 @default.
• W1567608917 hasConceptScore W1567608917C161509811 @default.
• W1567608917 hasConceptScore W1567608917C162973429 @default.
• W1567608917 hasConceptScore W1567608917C17409809 @default.
• W1567608917 hasConceptScore W1567608917C192241223 @default.
• W1567608917 hasConceptScore W1567608917C2778703903 @default.
• W1567608917 hasConceptScore W1567608917C2779321686 @default.
• W1567608917 hasConceptScore W1567608917C36986328 @default.
• W1567608917 hasConceptScore W1567608917C77928131 @default.
• W1567608917 hasLocation W15676089171 @default.
• W1567608917 hasLocation W15676089172 @default.
• W1567608917 hasLocation W15676089173 @default.
• W1567608917 hasOpenAccess W1567608917 @default.
• W1567608917 hasPrimaryLocation W15676089171 @default.
• W1567608917 hasRelatedWork W1968673690 @default.
• W1567608917 hasRelatedWork W1990533500 @default.
• W1567608917 hasRelatedWork W2016975020 @default.

• next