The Jurassic magmatic and volcanic rocks are widespread along the west central Lhasa subterrane. However, the petrogenesis of these rocks is poorly understood because of lacking high-quality ...geochronology and geochemical data. Here, we present new zircon U-Pb age and Hf isotopic data, whole-rock geochemical and Sr-Nd-Pb isotopic data for the Songduole and Qiangnong plutons in Geji area. LA-ICP-MS dating of zircon yield crystallization ages of 172.1 ± 1.9 and 155.9 ± 1.2 Ma for the Songduole and Qiangnong plutons, respectively. Geochemically, Songduole and Qiangnong granodiorite are characterized by high MgO (2.63-3.49 wt%), high Mg# (49-50), and low TiO2 (0.48-0.57 wt%). Besides, all rocks show metaluminous, calc-alkaline signatures, with strong depletion of Nb, Ta, and Ti, enrichment of large-ion lithophile (e.g. Rb, Th, K), and a negative correlation between SiO2 and P2O5. All these features are indicative of arc-related I-type magmatism. Five samples from the Songduole granodiorite have whole rock (87Sr/86Sr)i of 0.71207-0.71257, epsilonNd(t) values of -15.1 to -13.9, zircon epsilonHf(t) values of -17.4 to -10.5, (206Pb/204Pb)t ratios of 18.402-18.854, (207Pb/204Pb)t ratios of 15.660-15.736, and (208Pb/204Pb)t ratios of 38.436-39.208. Samples from the Qiangnong granodiorite have (87Sr/86Sr)i of 0.71230-0.71252, epsilonNd(t) values of -15.1 to -14.2, zircon epsilonHf(t) values of -12.6 to -6.4, (206Pb/204Pb)t ratios of 18.688-18.766, (207Pb/204Pb)t ratios of 15.696-15.717, and (208Pb/204Pb)t ratios of 38.546-39.083. These geochemical signatures indicate that the two plutons most likely originated from partial melting of the ancient Lhasa lower crust with obvious inputs of mantle-derived melts. Combined with regional geology, our results indicate that the Jurassic magmatism in the west central Lhasa subterrane most likely resulted from the southward subduction of the Bangong Ocean lithosphere beneath the central Lhasa terrane.
This paper deals with the form and function/distribution of the postposition of the agentive referent in transitive clauses through a comparison of 19 dialectal varieties of Qiang. The author ...proposes that the agentive marking in Qiang is not marked for syntactic function (either nominative or ergative case), but reflects semantic/pragmatic constraints; therefore, the marking of the agentive referent just reflects the semantically based nature of grammatical relations in Qiang., 本文在眾多羌語方言土語語料的基礎上，比較和討論羌語施事者標記的形式和分布特徵，提出施事者標記並不區分主語與賓語；只有為了消除語意上的歧義，即辨別哪個所指是施事者時，才使用施事者標記，也就是類型學上所謂的語意基礎上的標記。語意基礎上的標記是指施事者標記是否出現不受句法功能的限制，主要受語意和語用的限制。同時，在羌語中，施事者標記與其他格標記形式相同，本文還探討施事者標記與其他格標記之間的相互關係，以及施事者標記的時間深度
本篇論文主要探討汶水泰雅語名物化結構的類型和功能。文中指出，如同許多南島語言一樣，汶水泰雅語的名物化結構發生在詞彙和子句兩個層面，不過汶水泰雅語除了利用焦點符號和時態語氣標記外，並沒有再利用其他詞綴機制以標示名物化結構。是故該語言中名物化形式與動詞形式極為相似。再者，本篇論文也檢視名物化結構的功能，發現除了可以標示事件或狀態外，也可以標示事件論元，如主事者、受事者、處所或工具等。希望本研究成果能提供給類型研究者和比較語言學者一些有用的資訊, This is a preliminary, descriptive study of nominalization in Mayrinax Atayal as spoken in Chinshui Village, Taian Township, Miaoli County. Like most other Formosan or even Austronesian languages, nominalization in Mayrinax occurs at both the lexical and the clausal level. Except for focus and tense/aspect/mood markers, however, there are no productive morphological devices to produce lexical nominals; nominalized elements and verb forms are, therefore, identical. An examination of the functions of Mayrinax derived nominals shows that they may designate actions or states, and may also manifest the agent, patient, locative, or instrumental argument of an event. These findings should prove useful to future typological or comparative research.
