發(fā)布時(shí)間：2018-07-24 14:21

【摘要】：凱勒克賽依鐵礦床是新疆阿爾泰唯一的小型鏡鐵礦床,賦存于一套變質(zhì)火山-沉積巖系中,近礦圍巖為白云母石英片巖,礦體呈層狀,與地層產(chǎn)狀一致,礦石具有塊狀、條帶狀、條紋狀構(gòu)造,礦石中金屬礦物主要為鏡鐵礦(TFe O=87.349%~88.988%,Ti O2=0~1.042%,Al2O3=0.036%~0.256%),礦化具有沉積特征。近礦圍巖鏡鐵礦白云母石英片巖鋯石LA-MC-ICP-MS U-Pb諧和年齡為(375.6±0.6)Ma,限定成礦時(shí)代在376 Ma左右,即中泥盆世成礦,是阿爾泰為數(shù)不多的中泥盆世成礦作用的產(chǎn)物。同時(shí)也厘定含礦的變質(zhì)火山-沉積巖系屬中—晚泥盆世阿勒泰鎮(zhèn)組,不是前人認(rèn)為的早泥盆世康布鐵堡組。
[Abstract]:The Kellerkesay iron deposit is the only small mirror iron deposit in Altai, Xinjiang, which occurs in a set of metamorphic volcano-sedimentary rock series. The surrounding rock near the ore is Muscovite quartz schist, the ore body is layered, consistent with the stratigraphic occurrence, and the ore is massive. Striped and striped structure, the main metallic minerals in the ore are goernetite (TFe 87.349). The mineralization is characterized by sedimentary characteristics, such as: (TFe) (TFe) (87.349) and (88.988) TiO2 + (1.042) and (0.036%) Al _ 2O _ 3 (0. 036 ~ 0. 256%). The zircon LA-MC-ICP-MS U-Pb harmonic age of Muscovite quartz schist is (375.6 鹵0. 6) Ma. and its metallogenic age is about 376Ma, that is, middle Devonian mineralization, which is the product of a few middle Devonian metallogeny in Altai. It is also determined that the metamorphic volcano-sedimentary series of ore-bearing rocks belong to the Altaizhen formation of the Middle-Late Devonian and are not the early Devonian Shikangbutebo formation.
【作者單位】： 新疆維吾爾自治區(qū)有色地質(zhì)勘查局706地質(zhì)隊(duì);河北省地礦局探礦技術(shù)研究院;中國地質(zhì)科學(xué)院礦產(chǎn)資源研究所國土資源部成礦作用與資源評(píng)價(jià)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國土資源部公益性行業(yè)科研專項(xiàng)經(jīng)費(fèi)項(xiàng)目(201211073)
【分類號(hào)】：P618.31;P597.3

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