%0 Journal Article
%T A PRELIMINARY STUDY ON THE BASIC-ULTRABASIC ROCKS OF THE KARAKORAM-WESTERN KUNLUN MTS.<br>喀喇昆仑—西昆仑地区基性—超基性岩初步考察
%A Deng Wanming
%A <br>邓万明
%J 自然资源学报
%D 1989
%I 
%X The preliminary exploratory results about the basic-ultrabasic rocks of the Karakoram and western Kunlun Mts. are reported in this paper. The Kudi ultramafic rock bodies belong to the Alpine-type associations in general, but there are some differences between the Kudi bodies and the typical ophiolitic metamorphic peridotites in petrochemistry. At present, there is insufficient evidence to make a full interpretation of the formation of these bodies. The Middle Proterozoic metamorphic volcanics in Akazi section may have originated in a strongly attenuated continental lithosphere. According to the discriminations of the rare element and REE geochemistry the Upper Proterozoic metamorphic mafic lavas in Yixikgou section probably are formed at a Mid-ocean ridge and present truce oceanic lithosphere. Late Paleozoic volcanics may have erupted in a continental margin area. Relative strong continental volcanic activity existed in Cenozoicera, in which especially the Quaternary continental floor volcanics may be related to the rapid uplifting of the Qinghai-X izang plateau. The occurrences, petrological and geochemical characteristics and erupting stages of the volcanics found in southern Kunlun Mts. have been discussed in detail in the paper.
%K basic-ultrabasic rock
%K mid-ocean ridge basalt
%K continental margin
%K Ceno-zoic volcanic rock
%K Rare Earth Element (REE)<br>基性-超基性岩
%K 洋脊玄武岩
%K 稀土元素
%K 大陆边缘
%K 新生代火山岩
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=4DCB9A3AF3395AF0101DE5302EF3C300&aid=998B8F2B161143743C51B7F062592D4D&yid=1833A6AA51F779C1&vid=E158A972A605785F&iid=38B194292C032A66&sid=02DC3A182A5530DF&eid=CC0ECB9C52F1B85F&journal_id=1000-3037&journal_name=自然资源学报&referenced_num=21&reference_num=0