Petrology, Geochemistry, and Genesis of High-Al Tonalite and Trondhjemites of the Cornucopia Stock, Blue Mountains, Northeastern Oregon
Petrology, Geochemistry, and Genesis of High-Al Tonalite and Trondhjemites of the Cornucopia Stock, Blue Mountains, Northeastern Oregon
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DOI：
10.1093/petroj/38.11.1585
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发表时间：
1997-11
影响因子：
3.9
通讯作者：
Kenneth Johnson;Calvin G. Barnes;Christopher A. Miller
中科院分区：
文献类型：
--
作者：
Kenneth Johnson;Calvin G. Barnes;Christopher A. Miller
tonalites和tronhjemites组成在较窄的tronhjemite SiO2含量范围内（65 ~ 74 wt %），表现出高al tonalite - tronhjemite - granite (TTG) suite的特征，包括轻稀土元素（LREE）富集，低Y、Nb和Rb/Sr，高Al2O3和Sr
Tonalitic and trondhjemitic compositions span a narrow range of trondhjemite SiO2 content (65‐74 wt %) and exhibit characteristics of a highAl tonalite‐trondhjemite‐granitoid (TTG) suite, including light rare earth element (LREE) enrichment, low Y, Nb and Rb/Sr, and high Al2O3 and Sr. These compositions are consistent with an