Results 71 to 80 of about 78,364 (165)
Marine Sediment Record of Eruption‐Fed Vertical Density Currents, Kermadec Arc (Rangitāhua)
Abstract Products of explosive volcanism can be transported into the oceans, where they form marine tephra layers. The processes responsible for their deposition are often complex, involving multiple transport mechanisms. During the RV Investigator voyage IN2022‐V02 (2022), a 35‐cm‐thick marine tephra unit was piston‐cored at 2,460 m water depth in the
Janne M. Scheffler +7 more
wiley +1 more source
Hydroacoustic Monitoring of Mayotte Submarine Volcano during Its Eruptive Phase
Submarine volcanoes are more challenging to monitor than subaerial volcanoes. Yet, the large eruption of the Hunga Tonga-Hunga Ha’apai volcano in the Tonga archipelago in 2022 was a reminder of their hazardous nature and hence demonstrated the need to ...
Aude Lavayssière +2 more
doaj +1 more source
PLANETARY-SCALE RESPONSE OF AEROSOLS TO THE TONGA VOLCANO ERUPTION [PDF]
Subject and Purpose. The work is aimed at analyzing changes in the concentration of atmospheric aerosols that were observed not only in the regions within a close vicinity of the eruption (particularly, in Australia), but in polar regions of the Earth as
A. V. Soina, Yu. M. Yampolsky
doaj +1 more source
Abstract The accretion of allochthonous provinces, derived from oceanic plates, has traditionally been considered an important contributor to continental growth. However, increasing evidence shows that some oceanic terranes (e.g., island arcs) are not “exotic,” as suggested by the presence of continental‐derived sedimentary provenance.
Igor V. Gomes +4 more
wiley +1 more source
Contribution to the Odonata of the Kingdom of Tonga [PDF]
New data on the Odonata fauna of the Kingdom of Tonga is provided following re-search carried out on Tongatapu and 'Eua islands in July 2012. New localities for Tongatapu Island are put on record and previous studies are compared with new pheno-logical ...
Marinov, Milen
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ABSTRACT Hadal environments (> 6000 m ocean depths) are often viewed as isolated locations with high species endemism due to limited dispersal. However, molecular studies continue to reveal greater complexity that questions historical perceptions. Recent population genetic studies focused on scavenging amphipods have identified broadly distributed ...
Brett C. Gonzalez +2 more
wiley +1 more source
Export Performance in South Pacific Countries Marginally Endowed with Natural Resources: Samoa and Tonga, 1960 to 1999 [PDF]
Stochastic dominance analysis was used to assess export performance in two Polynesian countries of similar size and structure that are both marginally endowed with natural resources: Samoa and Tonga.
Blowes, Anita, Fleming, Euan M.
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Edition 1-D.O.S.Standard map series designation: Series X872. "Projection:--transverse Mercator." "Grid:--U.T.M. zone 1; Tonga cadastral grid." Relief shown by contours, spot heights, and land form drawings on some sheets.
Great Britain. Directorate of Overseas Surveys;
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Pronounced Suppression and X-Pattern Merging of Equatorial Ionization Anomalies After the 2022 Tonga Volcano Eruption. [PDF]
Aa E +14 more
europepmc +1 more source
1:25,000 Kingdom of Tonga [cartographic material] /
Ed. 1-D.O.S. Standard map series designation: Series X872.; "Grid:--U.T.M. zone 1; Tonga cadastral grid."; Relief shown by contours, spot heights, and land form drawings on some sheets.; Includes location map and conversion table.
Great Britain. Directorate of Overseas Surveys.
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