1) rocks layers of upper mantle
上地幔岩石分层
2) Lithosphere mantle
岩石层地幔
3) upper mantle rock
上地幔岩
1.
In the former province, the upper mantle rocks consist of harzburgite and lherzolite, characterized by the concentration of mantle type elements (K T) and the smooth-weak enrichment type REE patterns; the ocean volcanic rocks are dominated by basic rocks of subalkaline and oceanic ridge type; lead isotopes are noted for 206Pb/ 204Pb<18.
前者上地幔岩有方辉橄榄岩和二辉橄榄岩 ,幔型元素 (KT)富集 ,REE呈平坦—弱富集型 ;大洋火山岩以基性岩、亚碱性、洋脊型为主 ;铅同位素2 0 6 Pb/2 0 4 Pb <18。
5) lithospheric mantle
岩石圈地幔
1.
Peridotite-melt interaction:an important mechanism for the compositional transformation of lithospheric mantle;
橄榄岩-熔体的相互作用:岩石圈地幔组成转变的重要方式
2.
Geochemistry of Late Mesozoic basalts from Kedoushan in the Middle and Lower Yangtze regions:Constraints on characteristics and evolution of the lithospheric mantle;
长江中下游地区蝌蚪山晚中生代玄武岩的地球化学研究:岩石圈地幔性质与演化的制约
3.
The high ratio of La/Nb values (>1) and negative Nb anomalies on the primitive mantle-normalized trace element patterns characterize the contamination of lithospheric mantle or crustal materials.
其低的δ18O值(<6‰)说明没有地壳物质的混染,其高的La/Nb比值(>1)和微量元素原始地幔标准化图解出现的负Nb异常则表明源区有岩石圈地幔物质的混染。
补充资料：上地
1.肥沃的土地。 2.古地区名。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条