FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2055391545> ?p ?o ?g. }

• W2055391545 endingPage "415" @default.
• W2055391545 startingPage "393" @default.
• W2055391545 abstract "Linear inversion of τ(p) composites for three different profiles suggests that the lower crust beneath eastern Pennsylvania consists of material with high averaged P wave velocities (6.8–7.5 km/s) compared with 6.4–7.1 km/s for most crustal models derived for surrounding areas within the Appalachians and the Grenville Province of the Canadian Shield. Interpretations of these velocities in terms of rock type are limited by the low resolving power of the data and by the nonuniqueness in inferring rock type from P wave velocity alone. The high averaged P wave velocities could be associated with substantial volumes of mafic rock, perhaps emplaced by underplating, or with high‐grade metamorphic assemblages of intermediate composition and sedimentary origin, similar to those found in the Ivrea Zone in northern Italy. Because of the sparseness of the S wave data, averaged shear wave velocities are not well enough resolved over most depth ranges to distinguish among the different compositional models. Computations of gravity anomalies for two‐dimensional models using various linear velocity‐density relations, however, suggest that at least part of the crust beneath the Scranton Gravity High is mafic. Moreover, if the entire basement section beneath this anomaly consists of mafic material, then the gravity studies indicate that the lower crust beneath the Great Valley must be mafic as well. Migrated shot gathers show a concentration of reflectors at depths between 35 and 45 km, a result that is controlled in part by the limited range of offsets used, but that is also consistent with recent observations of a highly reflective lower crust. Reflections that are migrated to depths within the uppermost mantle could be multiples or primary reflections from upper mantle layering. Although the data are rather sparse, the interpretation of these later arrivals as primary reflections is supported by their small ray parameters, which suggests that they are not converted phases, and by their large relative amplitudes, which suggests that they are not multiples. Layering within the upper mantle could be in the form of alternating high‐ and low‐velocity zones, perhaps related to emplacement of eclogites or garnet granulites in the uppermost mantle during the process of underplating." @default.
• W2055391545 created "2016-06-24" @default.
• W2055391545 creator A5047394013 @default.
• W2055391545 creator A5078940837 @default.
• W2055391545 date "1992-01-10" @default.
• W2055391545 modified "2023-09-27" @default.
• W2055391545 title "Structure of the crust and upper mantle beneath the Great Valley and Allegheny Plateau of eastern Pennsylvania 2. Gravity modeling and migration of wide-angle reflection data" @default.
• W2055391545 cites W1486537955 @default.
• W2055391545 cites W1490982831 @default.
• W2055391545 cites W1491944395 @default.
• W2055391545 cites W1597131080 @default.
• W2055391545 cites W1604663116 @default.
• W2055391545 cites W1963850084 @default.
• W2055391545 cites W1964378450 @default.
• W2055391545 cites W1969874438 @default.
• W2055391545 cites W1974645627 @default.
• W2055391545 cites W1977320616 @default.
• W2055391545 cites W1979331501 @default.
• W2055391545 cites W1981634746 @default.
• W2055391545 cites W1981685145 @default.
• W2055391545 cites W1983153086 @default.
• W2055391545 cites W1988842643 @default.
• W2055391545 cites W1995429011 @default.
• W2055391545 cites W1996555782 @default.
• W2055391545 cites W1999599174 @default.
• W2055391545 cites W2000658638 @default.
• W2055391545 cites W2001823899 @default.
• W2055391545 cites W2006602001 @default.
• W2055391545 cites W2007097118 @default.
• W2055391545 cites W2008324928 @default.
• W2055391545 cites W2009346880 @default.
• W2055391545 cites W2017477542 @default.
• W2055391545 cites W2018406813 @default.
• W2055391545 cites W2023708129 @default.
• W2055391545 cites W2024078862 @default.
• W2055391545 cites W2027303301 @default.
• W2055391545 cites W2030933415 @default.
• W2055391545 cites W2034557174 @default.
• W2055391545 cites W2035215741 @default.
• W2055391545 cites W2036132496 @default.
• W2055391545 cites W2038502974 @default.
• W2055391545 cites W2043407093 @default.
• W2055391545 cites W2048318721 @default.
• W2055391545 cites W2049954839 @default.
• W2055391545 cites W2050188418 @default.
• W2055391545 cites W2050292131 @default.
• W2055391545 cites W2051607232 @default.
• W2055391545 cites W2052585658 @default.
• W2055391545 cites W2060293298 @default.
• W2055391545 cites W2062868657 @default.
• W2055391545 cites W2063089121 @default.
• W2055391545 cites W2063219951 @default.
• W2055391545 cites W2072929359 @default.
• W2055391545 cites W2073306253 @default.
• W2055391545 cites W2075378929 @default.
• W2055391545 cites W2076670951 @default.
• W2055391545 cites W2077088768 @default.
• W2055391545 cites W2078438335 @default.
• W2055391545 cites W2079364444 @default.
• W2055391545 cites W2079759896 @default.
• W2055391545 cites W2081425052 @default.
• W2055391545 cites W2081769397 @default.
• W2055391545 cites W2083826621 @default.
• W2055391545 cites W2086289882 @default.
• W2055391545 cites W2087139415 @default.
• W2055391545 cites W2087586470 @default.
• W2055391545 cites W2092054370 @default.
• W2055391545 cites W2092183800 @default.
• W2055391545 cites W2096057873 @default.
• W2055391545 cites W2096215200 @default.
• W2055391545 cites W2111068345 @default.
• W2055391545 cites W2117184733 @default.
• W2055391545 cites W2122454497 @default.
• W2055391545 cites W2125904408 @default.
• W2055391545 cites W2126990689 @default.
• W2055391545 cites W2130349459 @default.
• W2055391545 cites W2134382934 @default.
• W2055391545 cites W2136974816 @default.
• W2055391545 cites W2142881602 @default.
• W2055391545 cites W2153609019 @default.
• W2055391545 cites W2156786968 @default.
• W2055391545 cites W2157206955 @default.
• W2055391545 cites W2157420224 @default.
• W2055391545 cites W2157886633 @default.
• W2055391545 cites W2162680978 @default.
• W2055391545 cites W2164980547 @default.
• W2055391545 cites W2166026905 @default.
• W2055391545 cites W2254954785 @default.
• W2055391545 cites W2269069749 @default.
• W2055391545 cites W2273962993 @default.
• W2055391545 cites W2306964696 @default.
• W2055391545 cites W2323312395 @default.
• W2055391545 cites W2331088471 @default.
• W2055391545 cites W2345099826 @default.
• W2055391545 cites W2467107484 @default.
• W2055391545 cites W2497604262 @default.
• W2055391545 cites W4210998532 @default.
• W2055391545 cites W4234926460 @default.

• next