1) devonite
[de'vəunait]
斜斑粗粒玄武岩
2) macrovariolitic
粗球粒玄武岩的
3) wischtisite
玻基粗粒玄武岩
5) toadstone
[英]['təudstəun] [美]['tod,ston]
玄武斑岩
6) tholeiite
['θəuliait]
拉斑玄武岩
1.
Erupted basalts in this area have 98~105 Ma KAr isotopic age, and their geochemical characteristics show that these basalts are divided into two types: tholeiite and alkaline olivine basalt.
岩石地球化学特征表明研究区有两类玄武岩:江山陈塘坞一带的拉斑玄武岩,礼贤、广丰一带的碱性橄榄玄武岩。
2.
Therefore, the element ratios can be applied to the study of trace element characteristics of rocks in the tholeiite source region.
因此研究拉斑玄武岩源区岩石中的微量元素特征可以采用元素比值的方法。
3.
Studies of immobile elements in the rocks show that these meta-volcanic rocks were tholeiite originally, and have geochemical characteristics of mid-ocean ridge environment,belonging to T-type MORB.
不活动组分的研究显示,其原岩主要是拉斑玄武岩类,且具有形成于洋中脊环境的地球化学特征,可能属于T型地幔源区的洋中脊玄武岩(MORB)。
补充资料:玄武
玄武 见四方之神。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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