次生岩浆对矽卡岩型矿床再次富集地质特征

根据几十年对各种岩浆岩成矿研究发现,在成矿期后,由于断裂再次复活,所产生的热动力,使原来未完全冷凝的岩浆,遭受重熔,形成新的汽水溶液,对已形成的矿体,再次交代,叠加富集,更具工业价值,沂南金场矿区尤为明显。因此笔者对此作一简要阐述。

地质找矿中遥感信息的综合研究与深化应用——以铀矿为例

以铀矿勘查为例,通过对遥感信息进行综合研究与深化应用的思考,提出后遥感应用技术的新理念,并认为它是将遥感信息的应用"从技术层面提升到科学层面"的重要途径。在此基础上,又提出砂岩型铀矿断隆成矿的观点,进而建立了我国克拉通和大型活化盆地的铀矿区域找矿模式。在上述观点和模式指导下,利用新型遥感技术,特别是高分辨率遥感数据,在塔里木盆地北缘柯坪断隆东段发现了3条颇具规模的铀矿化带,取得了显著的找矿效果。

Effect of Foliar Application of Iron on Seasonal Changes of Minerals Composition in Petioles and Berries of Halwani Lebanon and Kamali Grape Cultivars （Vitis vinifera L,）

A field experiment was conducted in 2009 and 2010 growing seasons, to study the effect of foliar application of iron-chelated ＂Fe-EDTA＂ at concentration 0, 100 and 200 mg/L on the seasonal dynamic of mineral composition of N, P, K, Fe and Zn in petioles and berries of Halwani Lebanon and Kamali grape cultivars, grown on a calcareous soil in Mosul region, Iraq. The results revealed that the foliar application of 200 mg Fe/L caused a significant increase of N, P, K, Fe and Zn concentrations in petioles and berries compared with the control for both seasons. Additionally, the N, P, K, Fe and Zn concentration in petioles were high at the beginning of the growth season, whereas, decrease towards in the end of the growth season in both cultivars and seasons. While the N, P, K, Fe and Zn in berry content was increased towards from berry set to veraison and ripening stage in both cultivars and seasons. So there are various element contents in the cultivars.