FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3114607544> ?p ?o ?g. }

• W3114607544 endingPage "1814" @default.
• W3114607544 startingPage "1795" @default.
• W3114607544 abstract "Abstract Reliable ages of proximal conglomerates in the Cordilleran foreland basin that are associated with emplacement and erosion of major thrust sheets are essential for reconstructing the kinematic history of the Sevier fold-thrust belt. Although these conglomerates have been dated by palynology, their absolute ages have been difficult to determine because of their coarse-grained texture and a lack of marine interbeds and tuffaceous deposits. We collected sets of oriented samples from outcrops in northeastern Utah, USA, to construct an overall magnetic polarity stratigraphy that can be correlated to the geomagnetic polarity time scale (GPTS). We sampled fine-grained, hematitic interbeds in the Upper Cretaceous Echo Canyon Conglomerate and Weber Canyon Conglomerate. Common paleomagnetic and rock magnetic analyses were conducted, and several rock magnetic results indicated that the dominant magnetic carriers in these weakly magnetized rocks are hematite and very subordinate magnetite/titanomagnetite/maghemite and goethite. Demagnetization results show that hematitic, fine-grained sandstone to siltstone intervals carry a geologically stable magnetization with directions and polarity consistent with the Late Cretaceous geomagnetic field. A small percentage of samples carry a low laboratory unblocking temperature secondary overprint residing primarily in goethite. Magnetic polarity results indicate that the Echo Canyon Conglomerate is exclusively of normal polarity and that the younger Weber Canyon Conglomerate is of normal polarity in its lowermost part, reverse polarity in the middle, and normal polarity in the upper part of the sequence. The new data indicate that these coarse-grained strata were most likely deposited over the time span of the magnetic polarity Chron (C) 34n to C33r interval and the younger C33r to C33n interval; the former interval includes the Santonian-Campanian stage boundary (ca. 83.4 Ma/83.1 Ma). Palynological data suggest that these rocks span Coniacian-Santonian time (ca. 89–84 Ma); thus, the most parsimonious correlation of the normal polarity magnetozone of the Echo Canyon Conglomerate is with the youngest part of C34n Superchron, which is of ca. 30 Ma duration (ca. 115 Ma to 83.4 Ma/83.1 Ma). The normal polarity magnetozone of the lower part of the younger Weber Canyon Conglomerate likely correlates to the youngest part of C34n, whereas the reverse and normal magnetozone from the middle and upper parts of the Weber Canyon Conglomerate likely correlate to C33r and C33n, respectively. We infer that the Santonian-Campanian boundary resides in the lower Weber Canyon Conglomerate, which implies that deposition of the unit started prior to the C34n/C33r boundary age (ca. 83.4 Ma/83.1 Ma) and continued through the C33r and C33n chrons. Sediment provenance data and growth structures tie the Echo Canyon and Weber Canyon Conglomerates to emplacement of the Crawford thrust sheet. Based on the magnetic polarity data, as constrained by the biostratigraphic age estimates from these synorogenic deposits, we hypothesize that the principal displacement along the Crawford thrust started during the Coniacian (&gt;C34n/C33r boundary age) and continued into the middle Campanian (&lt;C33r/C33n boundary age), from ca. 90–75 Ma, which is nearly 10 Ma longer than previously thought. The new age constraints demonstrate complete temporal overlap between proximal and distal coarse-grained deposits in this part of the Cordilleran foreland basin, coeval with active thrust displacement and rapid hinterland exhumation." @default.
• W3114607544 created "2021-01-05" @default.
• W3114607544 creator A5003840287 @default.
• W3114607544 creator A5030016629 @default.
• W3114607544 creator A5054478781 @default.
• W3114607544 creator A5083362789 @default.
• W3114607544 date "2020-12-16" @default.
• W3114607544 modified "2023-10-17" @default.
• W3114607544 title "A magnetostratigraphic age constraint for the proximal synorogenic conglomerates of the Late Cretaceous Cordilleran foreland basin, northeast Utah, USA" @default.
• W3114607544 cites W1252535697 @default.
• W3114607544 cites W1482993516 @default.
• W3114607544 cites W1484457727 @default.
• W3114607544 cites W1589162793 @default.
• W3114607544 cites W189388857 @default.
• W3114607544 cites W1975364101 @default.
• W3114607544 cites W1985819302 @default.
• W3114607544 cites W1986509574 @default.
• W3114607544 cites W1989176712 @default.
• W3114607544 cites W2019004188 @default.
• W3114607544 cites W2021328680 @default.
• W3114607544 cites W2027311488 @default.
• W3114607544 cites W2030479881 @default.
• W3114607544 cites W2031342013 @default.
• W3114607544 cites W2032877739 @default.
• W3114607544 cites W2034599543 @default.
• W3114607544 cites W2046404350 @default.
• W3114607544 cites W2066638055 @default.
• W3114607544 cites W2068839786 @default.
• W3114607544 cites W2074716904 @default.
• W3114607544 cites W2079749045 @default.
• W3114607544 cites W2092676173 @default.
• W3114607544 cites W2095293118 @default.
• W3114607544 cites W2099512080 @default.
• W3114607544 cites W2112085404 @default.
• W3114607544 cites W2118204502 @default.
• W3114607544 cites W2121812998 @default.
• W3114607544 cites W2125981652 @default.
• W3114607544 cites W2135909516 @default.
• W3114607544 cites W2136388457 @default.
• W3114607544 cites W2149277645 @default.
• W3114607544 cites W2155895997 @default.
• W3114607544 cites W2158558352 @default.
• W3114607544 cites W2160012670 @default.
• W3114607544 cites W2172236306 @default.
• W3114607544 cites W2194493605 @default.
• W3114607544 cites W2301242448 @default.
• W3114607544 cites W2323384293 @default.
• W3114607544 cites W2346210616 @default.
• W3114607544 cites W2402963373 @default.
• W3114607544 cites W2490792481 @default.
• W3114607544 cites W2505903228 @default.
• W3114607544 cites W2567686872 @default.
• W3114607544 cites W2957614557 @default.
• W3114607544 cites W2979507886 @default.
• W3114607544 doi "https://doi.org/10.1130/b35768.1" @default.
• W3114607544 hasPublicationYear "2020" @default.
• W3114607544 type Work @default.
• W3114607544 sameAs 3114607544 @default.
• W3114607544 citedByCount "4" @default.
• W3114607544 countsByYear W31146075442021 @default.
• W3114607544 countsByYear W31146075442022 @default.
• W3114607544 crossrefType "journal-article" @default.
• W3114607544 hasAuthorship W3114607544A5003840287 @default.
• W3114607544 hasAuthorship W3114607544A5030016629 @default.
• W3114607544 hasAuthorship W3114607544A5054478781 @default.
• W3114607544 hasAuthorship W3114607544A5083362789 @default.
• W3114607544 hasBestOaLocation W31146075441 @default.
• W3114607544 hasConcept C106804226 @default.
• W3114607544 hasConcept C109007969 @default.
• W3114607544 hasConcept C114793014 @default.
• W3114607544 hasConcept C12294951 @default.
• W3114607544 hasConcept C127313418 @default.
• W3114607544 hasConcept C151730666 @default.
• W3114607544 hasConcept C169212394 @default.
• W3114607544 hasConcept C17409809 @default.
• W3114607544 hasConcept C189479680 @default.
• W3114607544 hasConcept C193748577 @default.
• W3114607544 hasConcept C49015763 @default.
• W3114607544 hasConcept C6494504 @default.
• W3114607544 hasConcept C84859931 @default.
• W3114607544 hasConceptScore W3114607544C106804226 @default.
• W3114607544 hasConceptScore W3114607544C109007969 @default.
• W3114607544 hasConceptScore W3114607544C114793014 @default.
• W3114607544 hasConceptScore W3114607544C12294951 @default.
• W3114607544 hasConceptScore W3114607544C127313418 @default.
• W3114607544 hasConceptScore W3114607544C151730666 @default.
• W3114607544 hasConceptScore W3114607544C169212394 @default.
• W3114607544 hasConceptScore W3114607544C17409809 @default.
• W3114607544 hasConceptScore W3114607544C189479680 @default.
• W3114607544 hasConceptScore W3114607544C193748577 @default.
• W3114607544 hasConceptScore W3114607544C49015763 @default.
• W3114607544 hasConceptScore W3114607544C6494504 @default.
• W3114607544 hasConceptScore W3114607544C84859931 @default.
• W3114607544 hasIssue "9-10" @default.
• W3114607544 hasLocation W31146075441 @default.
• W3114607544 hasOpenAccess W3114607544 @default.
• W3114607544 hasPrimaryLocation W31146075441 @default.
• W3114607544 hasRelatedWork W2021647065 @default.

• next