The study of petrology, mineralogy and geochemistry suggests that augite latite and augite monzonite are cognate, belonging to the upper and root parts of the volcanic dome respectively.
岩、矿物地球化学的研究表明,辉
粗安岩与辉
岩同源,分别为火
穹窿的上
和根
。
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By examining the chemical diffusion in crystals from those rocks, they found that, in each eruption, about a month elapsed between the last pulse of magma and the eruption itself -- useful information for hazard planners.
通过检查这些岩石晶体的化学扩散, 他们发现,在每次喷发
,
最后一次岩浆脉冲
喷发本身之间大约有一个月的时间——这对灾害规划人员来说是有用的信息。
" The only area where there was a match was northeast Scotland, " says study coauthor Nick Pearce, a geologist and geochemist also at Aberystwyth University. " These fingerprints are very characteristic, " he says. " I don't think there'll be anywhere else where it would match."
“唯一匹配的地区是苏格兰东北部,”该研究的合著者、同样来自阿伯里斯特威斯大学的岩石学家和岩石化学家尼克·皮尔斯说。“这些指纹非常具有特征," 他说。" 我认为不会有其他地方与之匹配。”