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Susanna Gorrasi, Angelika Brandt, Francesca Pittino, Andrea Franzetti, Marcella Pasqualetti, Barbara Muñoz-Palazon, Giorgia Novello and Massimiliano Fenice
The Kuril?Kamchatka Trench (North-West Pacific Ocean) is included in the deepest trenches (>9000 m). This study is the first that aims at uncovering the bathyal prokaryotic diversity (1000?2000 m) of this fascinating extreme environment. The analysis of ...
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Pavel Mikhailik, Irina Vishnevskaya, Liang Yi, Natalia Soloshenko and Vadim Pellinen
A study of the isotopic compositions of neodymium and strontium in four mineral fractions of the hydrogenous ferromanganese crusts of the northernmost Pacific has been carried out for the first time. The relationship of the 87Sr/86Sr ratio and eNd value ...
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Leopold I. Lobkovsky, Alexey A. Baranov, Igor A. Garagash, Mukamay M. Ramazanov, Irina S. Vladimirova, Yurii V. Gabsatarov, Dmitry A. Alekseev and Igor P. Semiletov
A correlation is observed between changes in the level of Earth?s seismic activity and increments of the atmospheric methane concentration over the past 40 years. Trigger mechanisms are proposed for methane emissions and glacier collapse in polar regions...
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Andrey Andreev and Irina Pipko
The ship-borne observations of the temperature, salinity, pCO2 (1995?2020) and satellite geostrophic velocity fields, SST, and chlorophyll concentration are used to identify the factors that determine the spatio-temporal variability of seawater parameter...
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Nikolai Berdnikov, Pavel Kepezhinskas, Natalia Konovalova and Nikita Kepezhinskas
Gold is typically transported by mafic and evolved magmas into the upper crust to be deposited in shallow oxidized porphyry and epithermal environments. However, the magmatic behavior of gold is still poorly understood and warrants further attention. Add...
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Valery Bondur, Viktor Zamshin, Olga Chvertkova, Ekaterina Matrosova and Vasilisa Khodaeva
In this paper, the causes of the anomalous harmful algal bloom which occurred in the fall of 2020 in Kamchatka have been detected and analyzed using a long-term time series of heterogeneous satellite and simulated data with respect to the sea surface hei...
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Hiroshi Kuroda, Tomonori Azumaya, Takashi Setou and Natsuki Hasegawa
Unprecedented large-scale harmful algae blooms (HABs) were reported in coastal waters off the south-eastern coast of Hokkaido, Japan, in mid-to-late September 2021, about a month after very intense and extensive marine heatwaves subsided. To understand t...
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Mikhail Lavrentiev, Konstantin Lysakov, Andrey Marchuk, Konstantin Oblaukhov and Mikhail Shadrin
Events of a seismic nature followed by catastrophic floods caused by tsunami waves (the incidence of which has increased in recent decades) have an important impact on the populations of littoral regions. On the coast of Japan and Kamchatka, it takes nea...
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Iestyn D. Barr, Mikhail D. Dokukin, Ioannis Kougkoulos, Stephen J. Livingstone, Harold Lovell, Jakub Malecki and Anton Y. Muraviev
On the Kamchatka Peninsula, a number of glaciers are covered by thick volcanic debris, which makes their margins difficult to delineate from satellite imagery. Fortunately, high resolution, multi-temporal digital surface models (DSMs) covering the entire...
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Pavel Y. Kuznetsov, Ivan Koulakov, Andrey Jakovlev, Ilyas Abkadyrov, Evgeny Deev, Evgeny I. Gordeev, Sergey Senyukov, Sami El Khrepy and Nassir Al Arifi
Gorely is an active volcano located 75 km from Petropavlovsk-Kamchatsky, Kamchatka. In 2010?2015, it exhibited strong activity expressed by anomalously high gas emission. In 2013?2014, we deployed a temporary network consisting of 20 temporary seismic st...
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