FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2097629268> ?p ?o ?g. }

• W2097629268 endingPage "4406" @default.
• W2097629268 startingPage "4387" @default.
• W2097629268 abstract "Magsat anomalies over the Pacific Ocean are related to volcanic plateaus and the edge effect of the Pacific Cretaceous Quiet Zone (PCQZ). Four prominent plateaus, Shatsky Rise, the Mid‐Pacific Mountains, Hess Rise, and Manihiki Plateau, are considered in this study. The major lateral magnetization contrasts associated with these plateaus are considered to arise from the topographic swells and the crustal roots, with root thicknesses estimated from topography using an Airy isostatic model. Shatsky Rise and the Mid‐Pacific Mountains are older than the Cretaceous Quiet Period and their natural remanent magnetization (NRM) is not a significant component of the magnetization contrasts that cause the Magsat anomalies associated with these plateaus. Their magnetic properties are characterized by effective magnetic susceptibility contrasts of 0.07 (±0.01, S.I., per unit volume) averaged over their topographic swells and crustal roots, equivalent to 0.04 if averaged over the entire crustal thicknesses (swell plus root plus intervening layer). This value agrees well with the estimates of previous investigators for these plateaus and for similar plateaus in other oceans. Two plateaus of Cretaceous Quiet Period age within the PCQZ, Hess Rise and Manihiki Plateau, have origins similar to those of Shatsky Rise and the Mid‐Pacific Mountains, and they probably have similar effective susceptibility contrasts but they may also carry Cretaceous Quiet Period NRM. Magnetic anomalies due to Hess Rise and Manihiki Plateau, calculated from the effective susceptibility contrast deduced for Shatsky Rise and the Mid‐Pacific Mountains, are substantially larger than the observed Magsat anomalies of these plateaus. There are also Magsat anomalies over parts of the Pacific where no plateaus exist Some of these anomalies are demonstrated as probably due to a contrast in NRM between the PCQZ and its surroundings. The total remanent magnetization contrast (magnetization contrast in amperes per meter times thickness in meters, equivalent to the dipole moment per unit area) of the PCQZ is 14,000–20,000 amperes (±30%), which cannot be simply explained by the absolute values of remanent magnetization predicted by conventional models of oceanic crustal magnetic properties. Modelling of the Cretaceous quiet zones in the northern Atlantic indicates a similar total remanent magnetization contrast. These results may be explained by including uppermost mantle remanent magnetization, with an intensity of about 1–2 A m −1 if magnetization persists to a depth of ≈7 below the seismic Moho, i.e, down to the depth of the crustal roots of the plateaus. Including NRM in the uppermost mantle of the PCQZ also serves to reduce the calculated amplitude of the Hess Rise and Manihiki Plateau Magsat anomalies if the NRM of the crustal roots is less than the NRM of the surrounding uppermost mantle. On this basis the estimated intensity of NRM in the uppermost 7 km of the PCQZ mantle is ≈1–3 A m −1 , in very good agreement with the intensity estimated from the PCQZ edge effect anomalies. These estimates of uppermost mantle NRM are probably a maximum limit, recognizing that other sources may also contribute to the total remanent magnetization contrasts of the Cretaceous quiet zones." @default.
• W2097629268 created "2016-06-24" @default.
• W2097629268 creator A5051238110 @default.
• W2097629268 creator A5057465971 @default.
• W2097629268 date "1992-04-10" @default.
• W2097629268 modified "2023-10-18" @default.
• W2097629268 title "Magnetization of the Pacific Ocean lithosphere deduced from Magsat data" @default.
• W2097629268 cites W1510744043 @default.
• W2097629268 cites W1535589826 @default.
• W2097629268 cites W1581358550 @default.
• W2097629268 cites W1965875575 @default.
• W2097629268 cites W1966289861 @default.
• W2097629268 cites W1971616622 @default.
• W2097629268 cites W1975131809 @default.
• W2097629268 cites W1979741911 @default.
• W2097629268 cites W1980373472 @default.
• W2097629268 cites W1985740869 @default.
• W2097629268 cites W1985787404 @default.
• W2097629268 cites W1986094638 @default.
• W2097629268 cites W1987786839 @default.
• W2097629268 cites W1990945194 @default.
• W2097629268 cites W1997003100 @default.
• W2097629268 cites W2000836611 @default.
• W2097629268 cites W2001781257 @default.
• W2097629268 cites W2005113426 @default.
• W2097629268 cites W2005335593 @default.
• W2097629268 cites W2006738089 @default.
• W2097629268 cites W2006988343 @default.
• W2097629268 cites W2008512347 @default.
• W2097629268 cites W2009597110 @default.
• W2097629268 cites W2010416888 @default.
• W2097629268 cites W2010902600 @default.
• W2097629268 cites W2011843622 @default.
• W2097629268 cites W2012938568 @default.
• W2097629268 cites W2016405844 @default.
• W2097629268 cites W2017099352 @default.
• W2097629268 cites W2017204298 @default.
• W2097629268 cites W2019309644 @default.
• W2097629268 cites W2022439066 @default.
• W2097629268 cites W2022711677 @default.
• W2097629268 cites W2023910005 @default.
• W2097629268 cites W2024526058 @default.
• W2097629268 cites W2026390936 @default.
• W2097629268 cites W2027219010 @default.
• W2097629268 cites W2037819897 @default.
• W2097629268 cites W2038963390 @default.
• W2097629268 cites W2039850020 @default.
• W2097629268 cites W2040263278 @default.
• W2097629268 cites W2040430455 @default.
• W2097629268 cites W2041156213 @default.
• W2097629268 cites W2041269880 @default.
• W2097629268 cites W2042929566 @default.
• W2097629268 cites W2044431672 @default.
• W2097629268 cites W2045461367 @default.
• W2097629268 cites W2047660088 @default.
• W2097629268 cites W2047947105 @default.
• W2097629268 cites W2050206352 @default.
• W2097629268 cites W2051877511 @default.
• W2097629268 cites W2059319488 @default.
• W2097629268 cites W2059862848 @default.
• W2097629268 cites W2060210828 @default.
• W2097629268 cites W2061226273 @default.
• W2097629268 cites W2063507162 @default.
• W2097629268 cites W2063540740 @default.
• W2097629268 cites W2064165463 @default.
• W2097629268 cites W2064674501 @default.
• W2097629268 cites W2065684465 @default.
• W2097629268 cites W2067269796 @default.
• W2097629268 cites W2073496745 @default.
• W2097629268 cites W2073820890 @default.
• W2097629268 cites W2076146895 @default.
• W2097629268 cites W2081372083 @default.
• W2097629268 cites W2083420683 @default.
• W2097629268 cites W2083428579 @default.
• W2097629268 cites W2084560367 @default.
• W2097629268 cites W2088369223 @default.
• W2097629268 cites W2088507450 @default.
• W2097629268 cites W2089228623 @default.
• W2097629268 cites W2092938692 @default.
• W2097629268 cites W2099741467 @default.
• W2097629268 cites W2104023778 @default.
• W2097629268 cites W2117135463 @default.
• W2097629268 cites W2119078004 @default.
• W2097629268 cites W2119856806 @default.
• W2097629268 cites W2120460359 @default.
• W2097629268 cites W2121969073 @default.
• W2097629268 cites W2122820554 @default.
• W2097629268 cites W2123627977 @default.
• W2097629268 cites W2124708945 @default.
• W2097629268 cites W2125918175 @default.
• W2097629268 cites W2133773366 @default.
• W2097629268 cites W2137812358 @default.
• W2097629268 cites W2151510585 @default.
• W2097629268 cites W2151646049 @default.
• W2097629268 cites W2156686253 @default.
• W2097629268 cites W2169324999 @default.
• W2097629268 cites W2170096039 @default.
• W2097629268 cites W2172104429 @default.

• next