%0 Journal Article %T Re-discussion on the origin of volcanic rocks of the Xinglonggou Formation, North China
再论兴隆沟组火山岩成因 %A SHAO JiAn %A LU FengXiang %A
邵济安 %A 路凤香 %J 岩石学报 %D 2008 %I %X Based on the composition and petrographic studies of the andesitic volcanic rocks of the Xinglonggou Formation in Beipiao region,western Liaoning Province,we found revisely-zoned and rhythmically-zoned orthopyroxenes as xenoerysts.The trace elemen abundances and patterns of the revisedly-zoned orthopyroxene xenocrysts indicate that the volcanic rocks of the Xinglonggou Formation wer the products of magma mixing rather than the lower-crust delamination.These orthopyroxenes perhaps came from the Early Mesozoi... %K Volcanic rocks of the Xinglonggou Formation %K Rhythmically-zoned and reversely-zoned orthopyroxene %K Lower crust delamination %K Magma mixing %K Cumulate
兴隆沟组火山岩 %K 辉石韵律环带 %K 下地壳拆沉 %K 岩浆混合 %K 堆晶岩 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=1748718CD430C304DDFFDED49AA37CFE&yid=67289AFF6305E306&vid=B91E8C6D6FE990DB&iid=B31275AF3241DB2D&sid=AF8A4A632EC02431&eid=30F6560DE982DECF&journal_id=1000-0569&journal_name=岩石学报&referenced_num=2&reference_num=37