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Гриб Е.Н., Леонов В.Л. Кальдера Карымская: строение и состав пирокластических потоков // Вестник КРАУНЦ. Серия: Науки о Земле. 2011. Вып. 17. № 1. С. 61-76.
The authors studied deposits from pyroclastic flows associated with Karymsky Caldera, which is located in the central part of the Karymsky Volcanic Centre (KVC). The study distinguished 4 pyroclastic flows and revealed that deposits from each pyroclastic flow have stratification in composition distinctly observed in the initial phase of the eruption. The pumice debris and cores of plagioclase crystals in pumice give evidence for both upper rhyolite zone and lower dacite zone in the upper-crust magmatic chamber. The heterogeneous layers and non-equilibrium mineral association in pumice suggest that the initial phase of each eruption is caused by intrusion of basalt in the upper-crust magmatic chamber. The distribution of major and trace elements in pyroclastic rocks of Karymsky Caldera show that they have resulted from moderate calcareousalkali differentiates of magnesia-basalt of KVC. Mineralogical and geochemical data show that the fractional crystallization and crustal contamination play significant role in origin of the rocks.
Гриб Е.Н., Леонов В.Л., Перепелов А.Б. Геохимия вулканических пород Карымского вулканического центра // Вулканология и сейсмология. 2009. № 6. С. 3-25.
Изучены петро- и геохимические особенности пород Карымского вулканического центра (КВЦ), который является наиболее крупным в Восточном вулканическом поясе Камчатки. Формирование КВЦ происходило ритмично, начиная с конца плиоцена, с образованием последовательных дифференцированных комплексов пород. Закономерное изменение макро- и микроэлементов в вулканических породах КВЦ объясняется процессами фракционирования минеральных фаз из исходного расплава. При этом происходило обогащение остаточных расплавов щелочами, литофильными элементами (Rb, Ba, Sr, Pb, Th, U, РЗЭ) и истощение когерентными элементами (Ni, Cr, Sc, Ti). Результаты геохимического исследования вулканических пород КВЦ указывают на принадлежность их к типичным островодужным образованиям. Отношения несовместимых элементов предполагают двухкомпонентную систему магмообразования: обедненный мантийный источник (N-MORB) и надсубдукционные флюиды (островодужный компонент). Вероятны процессы контаминации расплава в кровле промежуточного очага метасоматизированным субстратом, добавка кумулусных кристаллических фаз (и расплавов) более ранних этапов магмообразования в КВЦ.
Гришин С.Ю. Воронки взрывов у края лавового потока Толбачинского извержения (Камчатка, 2012-2013 гг.) // Вестник КРАУНЦ. Серия: Науки о Земле. 2015. Вып. 28. № 4. С. 72-79.
Investigation of place of contact between the fresh lava flow from the 2012-2013 Tolbachik eruption and forest vegetation revealed an unusual phenomenon such as craters from explosions, partially destroyed old lava cover and soil-pyroclastic cover. Besides, traces of powerful scorching on the trunks of alder thickets adjacent to the craters were also found. Most likely, these craters have resulted from explosions that occurred due to the concentration of methane in the cracks and cavities in the old lava. The methan was caused by wood pyrolysis, buried by red-hot lava of 2012 eruption.
Гришин С.Ю. Поражение древесной растительности на острове Матуа (Курилы, 2007 г.) под воздействием газовой эмиссии вулкана Пик Сарычева // Вестник КРАУНЦ. Серия: Науки о Земле. 2013. Вып. 21. № 1. С. 66-76.
The article describes the affected woody vegetation on the slope of Sarychev Peak, the Kuriles, in 2007 and discusses some reasons that could have lead to the vegetation death. Besides, the article provided a conclusion that a large-scale destruction of alder elfin wood was caused by gas emission, chiefly by SO2.
Гришин С.Ю., Гирина О.А., Верещага Е.М., Витер И.В. Мощное извержение вулкана Пик Сарычева (Курильские острова, 2009 г.) и его воздействие на растительный покров // Вестник ДВО РАН. 2010. № 3. С. 40-50.
Very powerful eruption of Sarychev Peak volcano (Matua Isl., the Central Kuriles) in June 2009 is examined in the paper. Nature of the eruption and its catastrophic impact on the island ecosystem (using vegetation as an example) are described based on remote sensing data (photos from the space) and ground observations, carried out in summer of 2009.
Гришин С.Ю., Комачкова И.В. Температура отложений мощного пирокластического потока 2005 г. на вулкане Шивелуч (Камчатка) и начало его зарастания // Вестник КРАУНЦ. Серия: Науки о Земле. 2011. Вып. 18. № 2. С. 128-134.
Thick deposits of pyroclastic flow from Shiveluch Volcano (February 2005) have remained high temperature for 6 years after the eruption. Despite the increased temperature of the deposits, plants began its colonization in recent years. To identify features of succession certain characteristics of unusual ecotope have been studied, including distribution of temperature background.
Гришин С.Ю., Мелекесцев И.В. Лавовые потоки (извержение 2009 г.) вулкана Пик Сарычева (Центральные Курилы) // Вестник КРАУНЦ. Серия: Науки о Земле. 2010. Вып. 15. № 1. С. 232-239.
This paper contains a first brief description for two lava flows from the 12-15 June, 2009 catastrophic eruption produced by Sarychev Peak, Matua Island, the Central Kuriles. Previously this eruption was considered to be explosive. The flows from the eruption are about 2.4 and 2.7 km long and 100 to 150 m wide, in some places they are as wide as 350 m. The flows occupy the territory of 0.8 km2 with lava volume of 10 million km3. They travelled along sector grabens simultaneously with pyroclastic flows burning elder woods and mountain meadows and were partially overlapped by pyroclastics.
Гришин С.Ю., Овсянников А.А., Перепелкина П.А. Возгорание древесной растительности и опасность лесных пожаров в ходе Толбачинского извержения (Камчатка, 2012 - 2013 гг.) // Вестник ДВО РАН. 2015. Т. 183. № 5. С. 63-69.
Гришин С.Ю., Перепелкина П.А., Бурдуковский М.Л., Яковлева А.Н. Начало восстановления лесной растительности после воздействия пирокластической волны вулкана Шивелуч (Камчатка) 27 февраля 2005 г. // Вестник КРАУНЦ. Серия: Науки о Земле. 2017. Вып. 36. № 4. С. 28-38.
In the spruce forest destroyed by a powerful pyroclastic surge, willow has been reestablishing on the surge deposits. Over a decade, the willow has formed a 6–8 m high canopy. The authors have specified the following factors that contributed to such a rapid reestablishing: a favourable moisture regime of the root zone caused by the deposition of the surge, the resources of the buried soil that feed the willows, and a certain protective role of dead trees. Prospects of further succession are being discussed; the authors have concluded that over about a 50-year-long period the willow will mostly fall out; by the end of the century the spruce will have partially restored its positions, but the stand will be mixed.
Гришин С.Ю., Шляхов С.А. Растительность и почвы Толбачинского Дола (Камчатка) // Вестник КРАУНЦ. Серия: Науки о Земле. 2009. Вып. 14. № 2. С. 130-142.
On the basis of the original materials obtained since 1978, the authors examine soil and vegetational cover within the zone of the strongest basalt eruption in Kamchatka. An intense ashfall in the summertime of 1975 caused the fall of enormous quantity of volcanites (0.7 km3). The ashfall destroyed vegetational cover over 100 km2 and damaged it over even larger territory. We consider the vegetational cover that existed prior to the eruption, the impact of the ashfall on the forest and alpine vegetation, and unclosed vegetation of the old lava flows. We calculated the area of the damaged vegetational cover and revealed the damage factors. The authors compared the damage factor of the vegetational cover caused by other ashfalls of the last century in Kurile-Kamchatkan region. Regional soils were studied for the first time.