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Preliminary Iron Isotopic Study of Damiao Anorthosite Complex in Northern North China Craton
Author(s) -
SHI Yao,
ZHU Xiangkun,
DONG Aiguo
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12384_12
Subject(s) - beijing , craton , geology , chinese academy of sciences , china , earth science , isotope geochemistry , tectonics , structural geology , geochemistry , archaeology , paleontology , geography , isotope , physics , quantum mechanics
Understanding the Fe isotope behaviors during magmatic processes is crucial in using this new isotopic tool to constrain petrogenesis of igneous rocks and related ore deposits. Some studies have been carried out on maficultramafic accumulated rock bodies (Wang et al., 2012; Chen et al., 2014; Liu et al., 2014). Massif-type anorthosite is a significant kind of magmatic rock, and always associated with iron deposit. However there is no Fe isotopic study on this kind of igneous rocks has been repored so far. Damiao complex is a massif-type anorthosite complex in the northern North China Craton. It formed at about 1.7 Ga (Zhao et al., 2004; Zhao et al., 2009), under extensional setting. Similar to other typical massif-type anorthosite complexs in the world, there are anorthosite, norite, gabbro, mangerite, and rich mineral resources like vanadium titanomagnetite ore and phosphorus iron ore. Cumulatic texture can be seen in silicate minerals. Previous researchers linked it with AMCG magmatic association (Xie, 2005).