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崂山花岗岩是中国东部晚中生代较典型的由钙碱性岩套和碱性岩套构成的（Ⅰ—Ａ型）复合花岗岩体，可划分石英二长岩、黑云二长花岗岩、正长花岗岩（组成钙碱性岩套）和碱性花岗岩（碱性岩套）四个单元，结晶年龄（锆石２０６Ｐｂ／２３８Ｕ谐和年龄）分别为１４６．８、１２６．２、１１３．０和１１０．８Ｍａ。岩石地球化学研究表明：钙碱性岩套自石英二长岩→黑云二长花岗岩→正长花岗岩，呈现向富硅、富碱、低铝、低钙、低镁方向的演化特征；碱性花岗岩总体呈现出高硅、高碱、低铝、低钙、低镁的特征，其大离子亲石元素和高场强元素Ｇａ、Ｎｂ、Ｈｆ、Ｚｒ、Ｙ及Ｇａ／Ａｌ、Ｆ／Ｃｌ比值等明显偏高，与国内外典型的Ａ型花岗岩成分相当。同位素示踪及成岩机理研究揭示出崂山花岗岩起源于下地壳基底变质岩的部分熔融，两套岩石分别与两次熔融事件有关，钙碱性岩套各单元是岩浆不同分离结晶程度的产物，而碱性花岗岩可能起源于经先前熔融事件（形成钙碱性岩套）萃取过的残留源岩，其形成与ＡＦＣ过程有关。基于一系列地球化学图解的判别，结合区域构造演化，指出崂山花岗岩是胶北地体—胶南地体陆—陆碰撞剪切造山带构造发展演化至特定阶段的产物，钙碱性岩套形成于造山晚期压性或压性向张性转化的应?
Laoshan granite is a type Ⅰ-A type composite granite body, which is typical of late Mesozoic in eastern China. It can be divided into quartz monzogranite, biotite monzogranite, granite ( Composed of calc-alkaline mantle) and alkaline granite (alkaline mantle). The crystallization age (zircon 206Pb / 238U harmonic age) are 146.8, 126.2, 113.0 and 110.8Ma respectively . Geochemical research shows that the calc-alkaline rocks are formed from quartz monzogranite → biotite monzogranite → orthoclase granite, showing the evolution characteristics toward silicon enrichment, alkali-rich, low-aluminum, low-calcium and low-magnesium; The granite generally shows the characteristics of high-silicon, high-alkali, low-aluminum, low-calcium and low-magnesium. The ratios of Ga, Nb, Hf, Zr, Y and Ga / Al, F / Cl Obviously higher, with the typical A-type granite composition at home and abroad quite. Isotopic tracing and diagenetic mechanism reveal that the Laoshan granite originated from the partial melting of the basement metamorphic rocks in the lower crust. The two sets of rocks are respectively related to the two melting events. The units of the calc-kyanite sets are the products of different degree of crystallization and separation of magma Alkaline granites may originate from residual source rocks that have been extracted from previous melting events (formation of calc-alkaline mantle) and their formation is related to the AFC process. Based on the discrimination of a series of geochemical diagrams and the regional tectonic evolution, it is pointed out that Laoshan granite is the product of tectonic evolution and evolution to a certain stage of the continental-continental collision shear orogen in the Jiaobei terrane-Jiaonan terrane. Late orogenic or compressive to tensile conversion should be?