Source: https://www.gt-crust.ru/jour/article/view/149
Timestamp: 2019-04-25 18:39:52+00:00

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В работе рассматривается механизм подъема базальтовых магм к поверхности и причина их возможной задержки в коре. Процесс задержки магм, по-видимому, контролируется соотношением плотности базальтового расплава и плотности верхней коры. Если плотность базальтового расплава оказывается ниже, то он поднимается к поверхности без существенной задержки, если выше – застревает. Поскольку плотность расплава падает с ростом его щелочности и/или флюидонасыщенности, это объясняет, почему высокощелочные расплавы характеризуются меньшей степенью контаминированности в сравнении с сухими расплавами нормальной щелочности.
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