FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2134699869> ?p ?o ?g. }

• W2134699869 endingPage "108" @default.
• W2134699869 startingPage "81" @default.
• W2134699869 abstract "A half-century of investigations are summarized here on the youngest Hawaiian volcano, Lṑihi Seamount. It was discovered in 1952 following an earthquake swarm. Surveying in 1954 determined it has an elongate shape, which is the meaning of its Hawaiian name. Lṑihi was mostly forgotten until two earthquake swarms in the 1970s led to a dredging expedition in 1978, which recovered young lavas. The recovery of young lavas motivated numerous expeditions to investigate the geology, geophysics, and geochemistry of this active volcano. Geophysical monitoring, including a real-time submarine observatory that continuously monitored Lṑihi's seismic activity for 3 months, captured some of the volcano's earthquake swarms. The 1996 swarm, the largest recorded in Hawaìi, was preceded earlier in the year by at least one eruption and accompanied by the formation of a ∼300-m deep pit crater, Pele's Pit. Seismic and petrologic data indicate that magma was stored in a ∼8–9 km deep reservoir prior to the 1996 eruption. Studies on Lṑihi have altered conceptual models for the growth of Hawaiian and other oceanic island volcanoes, and refined our understanding of mantle plumes. Petrologic and geochemical studies of Lṑihi lavas showed that the volcano taps a relatively primitive part of the Hawaiian plume, producing a wide range of magma compositions. These compositions have become progressively more silica-saturated with time, reflecting higher degrees of partial melting as the volcano drifts toward the center of the hotspot. Helium and neon isotopes in Lṑihi glasses are among the least radiogenic found at ocean islands, and may indicate a relatively deep and undegassed mantle source for the volcano. The north–south orientation of Lṑihi rift zones indicates that they may have formed beyond the gravitational influence of the adjacent older volcanoes. A new growth model indicates that Lṑihi is older, taller and more voluminous than previously thought. Seismic and bathymetric data have clarified the importance of landsliding in the early formation of ocean island volcanoes. However, a fuller understanding of Lṑihi's internal structure and eruptive behavior awaits installation of monitoring equipment on the volcano. The presence of hydrothermal activity at Lṑihi was initially proposed based on nontronite deposits on dredged samples that indicated elevated temperatures (31 °C), water temperature, methane and 3He anomalies, and clumps of benthic micro-organisms in the water column above the volcano in 1982. Submersible observations in 1987 confirmed a low temperature geothermal system (15–30 °C) prior to the 1996 formation of Pele's Pit. The sulfide mineral assemblage (wurtzite, pyrrhotite, and chalcopyrite) deposited after the pit crater collapsed are consistent with hydrothermal fluids with temperatures >250 °C, although the highest measured temperature was ∼200 °C. Vent temperatures decreased to ∼60 °C during the 2004 dive season indicating a waning of the current phase of hydrothermal activity." @default.
• W2134699869 created "2016-06-24" @default.
• W2134699869 creator A5011231249 @default.
• W2134699869 creator A5016590748 @default.
• W2134699869 creator A5039710806 @default.
• W2134699869 creator A5055746009 @default.
• W2134699869 creator A5066956852 @default.
• W2134699869 date "2006-05-01" @default.
• W2134699869 modified "2023-10-11" @default.
• W2134699869 title "Geology, geochemistry and earthquake history of Lṑihi Seamount, Hawaìi's youngest volcano" @default.
• W2134699869 cites W1484223559 @default.
• W2134699869 cites W1495519640 @default.
• W2134699869 cites W1502419383 @default.
• W2134699869 cites W1509857254 @default.
• W2134699869 cites W1513369243 @default.
• W2134699869 cites W1519816591 @default.
• W2134699869 cites W1540607934 @default.
• W2134699869 cites W1543482041 @default.
• W2134699869 cites W1593649996 @default.
• W2134699869 cites W1647046467 @default.
• W2134699869 cites W1660599158 @default.
• W2134699869 cites W1853414901 @default.
• W2134699869 cites W1963826692 @default.
• W2134699869 cites W1964840916 @default.
• W2134699869 cites W1965410050 @default.
• W2134699869 cites W1965872255 @default.
• W2134699869 cites W1969138048 @default.
• W2134699869 cites W1969469437 @default.
• W2134699869 cites W1969512750 @default.
• W2134699869 cites W1970548478 @default.
• W2134699869 cites W1971453987 @default.
• W2134699869 cites W1971659126 @default.
• W2134699869 cites W1973821322 @default.
• W2134699869 cites W1974080879 @default.
• W2134699869 cites W1974731988 @default.
• W2134699869 cites W1974952822 @default.
• W2134699869 cites W1975105456 @default.
• W2134699869 cites W1975288174 @default.
• W2134699869 cites W1977793670 @default.
• W2134699869 cites W1978064699 @default.
• W2134699869 cites W1979178703 @default.
• W2134699869 cites W1979957438 @default.
• W2134699869 cites W1980158492 @default.
• W2134699869 cites W1980811720 @default.
• W2134699869 cites W1982978456 @default.
• W2134699869 cites W1983199689 @default.
• W2134699869 cites W1983652115 @default.
• W2134699869 cites W1984405677 @default.
• W2134699869 cites W1984781366 @default.
• W2134699869 cites W1985666305 @default.
• W2134699869 cites W1986367206 @default.
• W2134699869 cites W1986713906 @default.
• W2134699869 cites W1987804918 @default.
• W2134699869 cites W1992232371 @default.
• W2134699869 cites W1997281071 @default.
• W2134699869 cites W1999380197 @default.
• W2134699869 cites W1999514717 @default.
• W2134699869 cites W2000630889 @default.
• W2134699869 cites W2004619008 @default.
• W2134699869 cites W2006663150 @default.
• W2134699869 cites W2007022306 @default.
• W2134699869 cites W2007135147 @default.
• W2134699869 cites W2007491827 @default.
• W2134699869 cites W2010811547 @default.
• W2134699869 cites W2010964930 @default.
• W2134699869 cites W2014750660 @default.
• W2134699869 cites W2015945721 @default.
• W2134699869 cites W2016136015 @default.
• W2134699869 cites W2016245192 @default.
• W2134699869 cites W2016383064 @default.
• W2134699869 cites W2017896872 @default.
• W2134699869 cites W2024203706 @default.
• W2134699869 cites W2026148494 @default.
• W2134699869 cites W2026999115 @default.
• W2134699869 cites W2031883353 @default.
• W2134699869 cites W2032960086 @default.
• W2134699869 cites W2034934500 @default.
• W2134699869 cites W2035316081 @default.
• W2134699869 cites W2038719649 @default.
• W2134699869 cites W2039587440 @default.
• W2134699869 cites W2041884064 @default.
• W2134699869 cites W2042662120 @default.
• W2134699869 cites W2042692134 @default.
• W2134699869 cites W2045394335 @default.
• W2134699869 cites W2045869731 @default.
• W2134699869 cites W2047177062 @default.
• W2134699869 cites W2048112478 @default.
• W2134699869 cites W2048199599 @default.
• W2134699869 cites W2048824477 @default.
• W2134699869 cites W2050259086 @default.
• W2134699869 cites W2051136609 @default.
• W2134699869 cites W2051321085 @default.
• W2134699869 cites W2051502687 @default.
• W2134699869 cites W2055475014 @default.
• W2134699869 cites W2057154260 @default.
• W2134699869 cites W2063836929 @default.
• W2134699869 cites W2063891159 @default.
• W2134699869 cites W2064816062 @default.

• next