%0 Journal Article
%T Petrogenesis of the intermediate-acid intrusive rocks and zircon SHRIMP dating in Tongling, Anhui, China<br>铜陵中酸性侵入岩成因及锆石SHRIMP定年
%A WU CaiLai
%A GAO QianMing
%A GUO HePing
%A GUO XiangYan
%A LIU LiangGen
%A GAO YuanHong
%A LEI Min
%A QIN HaiPeng
%A <br>吴才来
%A 高前明
%A 国和平
%A 郭祥炎
%A 刘良根
%A 郜源红
%A 雷敏
%A 秦海鹏
%J 岩石学报
%D 2010
%I 
%X The Mesozoic intermediate-acid intrusive rocks in Tongling area can be divided into two magmatic series, namely the shoshonitic series and the high-potassium (K) calc-alkaline series. The shoshonitic series is characterized by an association of pyroxene monzodiorites (PMD)+monzonites (Mz)+quartz monzonites (QM), and high Rittmann indices. This series has common association with gold deposits. This series is associated cumulate enclaves such as pyroxene cumulate, hornblende cumulate and hornblende gabbro. The high-potassium calc-alkaline series is an association of gabbro-diorite (GBD)+quartz monzodiorites (QMD)+granodiorites (GD). It has lower Rittmann indices and REEs than the shoshonitic series and is associated with copper deposits. This series contains three kinds of enclaves, mica-enriched enclaves, which appear to be melted pelitic rock, mafic quartz monzodiorite enclaves and micro-diorite enclaves. The two series overlap in age. Zircon U-Pb SHRIMP ages for the quartz monzodioirite are around 140Ma, for the granodioirte are 142~146Ma, for the gabbro-diorite is 143Ma, for pyroxene monzodiorites are 138~142Ma and monzonite is 143Ma. From the differences in chemistry between the two suites study and the different kinds of enclaves found in each, we conclude that the shoshonitic series magma is derived from the differentiation of the mantle-derived alkaline basic magma and the high-potassium (K) calc-alkaline series magma is mixture between the differentiated mantle magma and crustal magma.
%K Zircon SHRIMP dating
%K Both high-K calc-alkaline and shoshonitic series
%K Intrusive rock
%K Origin
%K Tongling<br>锆石SHRIMP定年
%K 高钾钙碱性和橄榄安粗岩系列
%K 侵入岩
%K 成因
%K 铜陵
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=E93C88626ED30372343B7FE7B7A63084&yid=140ECF96957D60B2&vid=96C778EE049EE47D&iid=9CF7A0430CBB2DFD&sid=B23378A304A976BB&eid=A0DD15F1FAA850C3&journal_id=1000-0569&journal_name=岩石学报&referenced_num=2&reference_num=27